Question 8 of 30
What is an ecosystem?
A. All of the organisms of a single species that live and interact in an
area
B. All of the organisms of a single species and the nonliving things
they need
C. All of the living things that interact in an area
D. All of the living and nonliving things that interact in an area
SUBMIT
Answers
Answer:
c i think
Explanation:
Answer:
D
Explanation:
An ecosystem is made up of many different living and none living beings
Related Questions
list of raw materials and their finished products
Answers
Raw cotton - Textiles
Limestoe - Cement
Iron ore - Steel
Bauxite - Aluminium
Wool - Woollen cloth
Soya seed - Soil oil
Mustard seed - Mustard oil
Ground nut - Ground nut oil
Sugar cane - Sugar
Hides and skins - Leather
Naphtha - Petrochemicals
Which trophic level does a fish represent in this food chain?
Answers
Fish represents the fourth trophic level in this food chain. Algae make up the first trophic level, followed by mosquito larva, dragonfly larva and finally fish. Man is the fifth trophic level.
What is larva?Larva (plural larvae) are the immature, wingless, and usually worm-like forms of insects that occur between hatching from an egg and metamorphosis into the adult form. Larvae are the most widespread life-stage of insects, and can be found in a wide variety of habitats, including aquatic, terrestrial, and even parasitic environments. Depending on the species, the larva may have different morphologies and feeding habits, and may go through several molts and instars to reach the adult stage. Some species remain in the larval stage for the entirety of their lives.
To learn more about larva
https://brainly.com/question/2514798
#SPJ1
Complete Question:
Which trophic level does a fish represent in this food chain? algae S mosquito larva S dragonfly larva S fish S man.
Which of the following nutrient provide more energy? a. Protein b. Carbohydrate c. Lipids d. Vitamins
Answers
The nutrient which provide more energy is C. Lipids
Among the given options, lipids provide the most energy per unit mass. Lipids, also known as fats, are a concentrated source of energy in the diet. When metabolized, lipids yield approximately 9 kilocalories (kcal) of energy per gram.
Carbohydrates, including sugars and starches, provide approximately 4 kcal of energy per gram. They are a readily available source of energy for the body, particularly for short-term energy needs. Proteins also provide approximately 4 kcal of energy per gram. However, their primary role is not as an energy source but rather as the building blocks for tissues, enzymes, and other important molecules in the body.
Vitamins, on the other hand, do not provide significant energy. They are essential for various biochemical processes in the body but do not contribute directly to energy production.
It is important to note that while lipids provide the most energy per gram, the overall balance and variety of nutrients in a diet are crucial for maintaining optimal health. Nutrient needs vary based on individual factors, such as age, sex, activity level, and overall health goals. Therefore, Option C is correct.
Know more about Lipids here:
https://brainly.com/question/17352723
#SPJ8
why are there bacteria on the slide even though it was prepared in a clean and sterile environment?
Answers
It was clearly contaminated somehow. Maybe the technician breathed on it. Maybe the slide wasn't cleaned properly. The bacteria came from somewhere.
4. Where is rough endoplasmic reticulum located?
A. Cytoplasm
B. Ribosomes
C. Nucleus
D. Cell wall
Answers
Answer: Nucleus (C)
Explanation:
Rough ER is found throughout the cell but the density is higher near the nucleus and the Golgi apparatus. Ribosomes on the rough endoplasmic reticulum are called 'membrane bound' and are responsible for the assembly of many proteins. This process is called translation.
Blood vessels, made up of connective tissue and epithelial tissue, work together to form which level of organization?
Answers
Answer:
The organ level of organization is when two or more tissues work together for a specific function. For example, the bladder consists of an inner lining of epithelial tissue, bound by various connective tissues to (smooth) muscle.
Explanation:
I hope this will help you
Answer:
YOUR ANSWER IS ORGAN LEVEL ORGANISATION.HOPE IT HELPS
In the 19th century, what was known about atoms?
A) The half-life of all atoms
B) The number of atoms that exist in the world is increasing
C) The atom determines the chemical property of an element
D) The exact structure of all atoms
Answers
Answer:
C. The atom determines the chemical property of an element.
Explanation:
hope this helps!
The atom determines the chemical property of an element. Therefore, option (C) is correct.
In the 19th century, it was understood that atoms determined the chemical properties of elements. Various investigations and theories proposed by scientists such as John Dalton, Dmitri Mendeleev, and J.J. Thomson led to the development of this understanding.
They observed that various elements exhibited distinct chemical behaviours and properties, which they attributed to the atoms' distinct structure and composition. This knowledge contributed to the development of atomic theory in the nineteenth century by laying the groundwork for the periodic table.
Learn more about atom, here:
https://brainly.com/question/1641336
#SPJ1
algae makes energy-rich carbon compounds through photosynthesis.
(T/F)
Answers
The given statement " Algae indeed produce energy-rich carbon compounds through photosynthesis". is True because Photosynthesis is a vital process that occurs in the chloroplasts of algae cells.
During photosynthesis, algae capture light energy using pigments like chlorophyll and convert it into chemical energy. They utilize this energy to break down water molecules, releasing oxygen as a byproduct, and incorporating carbon dioxide from the surrounding environment. Through a series of enzymatic reactions, algae synthesize glucose, a high-energy carbon compound.
Glucose serves as a primary source of energy for algae, enabling them to carry out essential metabolic processes and sustain their growth. Additionally, algae can convert excess glucose into other energy-rich carbon compounds, such as lipids and starches, which serve as energy storage molecules. These compounds can be used during periods of limited sunlight or nutrient availability.
Overall, algae's ability to generate energy-rich carbon compounds through photosynthesis makes them an important component of aquatic ecosystems and potential sources for renewable energy production and biofuel development.
Know more about Algae here:
https://brainly.com/question/20481001
#SPJ8
WILL GIVE BRAINLIEST
If a person's blood pressure decreases, receptors in the blood vessels send a message to the brain, which in turn causes the heart rate to increase and the blood vessels to decrease in diameter.
1. What type of feedback mechanism this is, positive or negative. Explain your answer.
2. If this feedback mechanism is too effective and increases blood pressure higher than the set point, predict what must happen to help maintain homeostasis.
3. A hemorrhage, or excessive bleeding, leads to a drastic decrease in blood pressure, which, in turn, leads to a decrease in flow in coronary arteries. This decreased flow leads to decreased contraction of the ventricles of the heart, which leads to decreased cardiac output and further decreased blood pressure. What type of feedback loop this is. Explain your answer.
Answers
Homeostasis is the capacity of the organism to keep internal systems at equilibrium. 1) Negative feedback. 2) Negative feedback to counter the blood pressure increase. 3) Possitive feedback.
When talking about homeostasis, we are referring to the organism's capacity to keep the body in constant internal equilibrium, even when the external environment is oscillating.
Homeostasis is critical to keep the correct internal functioning of the body.
Functions like blood pressure, body temperature, respiratory rate, and blood glucose levels, among others, are kept in a restricted range around a reference point, even though external conditions may be changing.
1. Negative feedbackBody systems homeostatically controlled are kept constant by negative feedback.
Any change that might occur in the internal functioning will be countered by negative feedback.
Negative feedback needs receptors, central control, and effectors.
In the exposed example,
Receptors are in vessels and they detect a decrease -or increase- in blood pressure.The central control is the SNC, the medulla oblongata. When it receives information about the blood pressure decrease, it sends signals to produce changes that correct that deviation and bring the internal conditions back to the normal range.Effectors are muscles, organs, and other structures that modify their function to correct the deviation. The heart muscle increases the heart rate, and the vessels muscles decrease the diameter.2. Increases in blood pressure higher than the set point The receptors in the blood vessel walls detect the increase in blood pressure,The receptors send a message to the medulla oblongata,
The medulla oblongata sends messages to effectors ⇒ the heart and blood vessels.
The heart rate decreases and the blood vessels increase in diameter.
The blood pressure drops to a value within the range around the reference value.
This is a negative feedback opposite to the first one.
3. Possitive feedbackPositive feedback is opposite to negative feedbackIt is a process by which the body detects a change, and activates mechanisms that accelerate that change, instead of countering it. Depending on the scenario, positive feedback can also help homeostasis. However, in many cases it produces the opposite effects and can turn into life-threatening.When an individual is suffering from a hemorrhage, a cascade of events occurs. There is constant blood loss and blood pressure decrease, which carries the consequent negative effects, such as the decrease in the capacity of ventricle contraction, and the decrease in the cardiac output.
A severe hemorrhage might lead to a quick death.
You can learn more about homesotasis and negative-positive feedback at
https://brainly.com/question/11312580
https://brainly.com/question/19865238
https://brainly.com/question/20512759
What could a dog living now and a cat living thousands of years ago have in
common?
A. They have the same bone structure.
B. They have some of the same matter.
C. They have the exact same DNA.
D. They have the same amount of energy.
SUBMNT
Answers
Answer:
b
Explanation:
not all dna is the same and energy depends on diet along with cats and dogs having different bone structure.
As letters are to English language, ________ is/are to genetic information.
Answers
Answer:
the answer is are
cuz genetic information is for (letters)
CQ#1: Choose the description below that
best completes the statement "oxidative
phosphorylation is the process in
mitochondria by which":
A. Electrons reduce O2 to H2O and this causes
ATP to be made.
B. Glycolysis produces more ATP than is needed
to activate its pathway.
C. Oxygen is used to cause phosphorylation of
biological molecules.
D. Synthesis of ATP is dependent on the
passage of electrons through the electron
transport chain.
Answers
Oxidative phosphorylation is the process in
mitochondria by which": Synthesis of ATP is dependent on the passage of electrons through the electrontransport chain.
Oxidative phosphorillation This is the synthesis of ATP by phosphorylation of ADP for which energy is obtained by electron transport and which takes place in the mlitochondria during aerobic respiration.Learn more about oxidative phosphorillation:
https://brainly.com/question/11538586
E. Coli is a bacterium that lives in the gut of humans. The human provides the ideal habitat for e coli reproduction and the e coli provides the extra vitamin K that we use.
Group of answer choices
Parasitism
Predation (Predator-Prey)
Mutualism
Commensalism
Answers
Answer:
The correct answer is - Mutualism.
Explanation:
E. coli and humans have a parasitic relationship as these organisms cause harm to the Humans while they reproduce themself, however, E. coli also have a mutualistic relationship with humans that are present in the gut of the human's digestive tracts.
These bacteria help in providing vitamin k and nutrients to humans that is essential for the clotting of blood and the human provides the ideal habitat for E. coli reproduction.
Each trait of a plant is determined by _____.
A) an allele
B) one gene
C) a pair of genes
D) one dominant gene
Answers
Answer:
c. a pair of genes
Explanation:
Answer:
C) a pair of genes
Explanation:
C should be correct because each trait is controlled my multiple genes. It is very rare to see one thing being controlled strictly by one gene, rather multiple things work together to produce the traits. Living things are very amazing if you dive deep into their DNA level,
Why do you get hungry?
Feeling hungry is your body's way of
telling you that your cells need
energy. All cells need energy to live,
grow, and reproduce. Plant cells get
their energy from the sun. Many
animal cells get their energy from
food.
Where do humano
Answers
Answer:You may feel hungry frequently if your diet lacks protein, fiber, or fat, all of which promote fullness and reduce appetite. Extreme hunger is also a sign of inadequate sleep and chronic stress. Additionally, certain medications and illnesses are known to cause frequent hunger.
Explanation:
"Hunger hormones" (ghrelin) in your blood and an empty stomach signal the brain when you're hungry. Nerves in the stomach send signals to the brain that you're full, but these signals can take up to 20 minutes to communicate -- and by that time, you may have already eaten too much.
Answer:
animals need food
Explanation:
to live
The diagram represents a green plant with a flower.
Base your answers to questions 62 through 64 on the diagram below and on your knowledge of science.
65 The chart belo
Identify two
organism. (
62 Describe one function of the roots. [1]
Base your
diagram repre
Halley's Come
Answers
Answer:no idea
Explanation:
The sun and moon seem to move across the sky each day because of Earth’s ____________________ on its axis.
Answers
Answer:
Rotation
Explanation:
Answer:
Explanation:
The Sun, Moon, and planets appear to move across the sky much like the stars. Because of the Earth's rotation, everything in the sky seems to move together, turning once around us every 24 hours.
Photosynthesis is the process by which plants and algae use energy from the sun to synthesize which of the following?
Answers
Photosynthesis takes within the CO2 produced by all breathing organisms and reintroduces oxygen into the atmosphere. Photosynthesis is that the process employed by plants, algae and certain bacteria to harness energy from sunlight and switch it into energy
¿Porque las vitaminas, las sales minarales y el agua se consideran reguladores?
Answers
Answer:
Vitamins and minerals boost the immune system, support normal growth and development, and help cells and organs do their jobs. For example, you've probably heard that carrots are good for your eyes. It's true! Carrots are full of substances called carotenoids (pronounced: kuh-RAH-teh-noydz) that your body converts into vitamin A, which helps prevent eye problems.
Vitamin K helps blood to clot, so cuts and scrapes stop bleeding quickly. You'll find vitamin K in green leafy vegetables, broccoli, and soybeans. And to have strong bones, you need to eat foods such as milk, yogurt, and green leafy vegetables, which are rich in the mineral calcium.
Which of the following is used to represent a dominant trait in a Punnett square?
A- An uppercase letter
B- A lowercase letter
C- A shaded square
D- A shaded circle
(if u answer pls have a explanation thanks :))
Answers
How does diffusion occur in cells? Please submit your conclusion paragraph.
Answers
Diffusion is an essential process for the functioning of cells, as it allows for the exchange of materials and energy between the cell and its environment. Diffusion occurs when molecules move from an area of higher concentration to an area of lower concentration. This process occurs within the cell membrane, as molecules of solutes move across the membrane as well as through the membrane. Diffusion is important for the transport of substances across cells, which is necessary for metabolic processes and other essential functions. Diffusion is an important process that helps cells to maintain homeostasis.
Please help
Using the diagram above, answer the following questions:
6. True or False. The arrow labelled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false.
7. True or False. The arrow labelled A represents a transfer of solar energy to chemical energy. Explain why this is true or false.
8. Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
9. Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected.
10. Which arrow or arrows represent reactions that demonstrate the conservation of mass and energy? Explain your answer.
Answers
6. The arrow labeled C does not represent a transfer of chemical energy to mechanical energy because the process is the conversion of chemical energy to another form of chemical energy.
The correct option is False.
7. The arrow labeled A represents a transfer of solar energy to chemical energy because solar energy from the Sun is converted into food in plants.
The correct option is True
8. The arrows that represent a release of carbon dioxide is C and F. C is combustion and F is respiration.
9. The arrows that indicate a process that cycles carbon from living or nonliving organisms are D, B, and E where D is the dissolution of carbon dioxide in rainwater, B is photosynthesis, and E is decomposition.
10. The arrow that represents reactions that demonstrate the conservation of mass and energy is E where the released carbon dioxide by animals is taken up by plants.
What is the carbon cycle?The carbon cycle is the ongoing process through which carbon atoms move back and forth between the atmosphere and the Earth.
The carbon cycle involves such processes as
photosynthesisdecomposistioncombustion, etc.Learn more about the carbon cycle at: https://brainly.com/question/1194643
#SPJ1
Which biome contains plants that remain green all year and has needles for leaves on trees? There are multiple answers. Choose all that apply
A: Taiga
B: Temperate Deciduous Forest
C: Coniferous Forest
D: Boreal Forest
Answers
Coniferous Forest are the ones that contains plants that remain green all year and has needles for leaves on trees. The correct option is C.
What is a biome?A biome is a biogeographical unit composed of a biological community that has evolved in response to its physical environment and a shared regional climate.
Biomes can exist on multiple continents. A biome is a general concept than habitat and may encompass a wide range of habitats.
Biomes are regions of the planet with similar climates and landscapes, as well as similar animals and plants. Rainforest, desert, savannah, grassland, woodland, and tundra are some of the world's major biomes.
A coniferous forest is a forest composed entirely of conifers. Conifers are cone-bearing trees with needle-like leaves that remain green all year.
Conifer species are found all over the world, with the exception of Antarctica, which has no large landmass.
Thus, the correct option is C.
For more details regarding biome, visit:
https://brainly.com/question/11491362
#SPJ2
PLEASE HELP, DESPERATE.
There are several climate zones in the world. Climate zones are classified based on their average, maximum, minimum, and range of temperatures and the amount of precipitation they receive annually and seasonally. The weather of a region can change daily, but weather shows the general pattern of a climate over long periods of time. Latitude, elevation (or altitude), winds, proximity to bodies of water, and aspect (slope) are the five major factors that affect climate.
A. Take a look at the map below. Draw in the equator in the appropriate place on the map. Split the map into six horizontal sections from top to bottom, three above the equator and three below the equator. Color in the major climate zones using the key below.
Polar: Blue
Tropical: Green
Temperate: Red
B. Then fill in the table with at least three characteristics of each climate zone. Focus on what makes each climate zone distinct from the other zones.
Answers
We can see here that writing out the characteristics of the giving climate zones, we have:
1. Polar
Very cold winters and short summersPrecipitation is low, usually in the form of snow.What is climate zone?A sizable region of the planet with a comparable climate is known as a climate zone. Climate is the long-term average of a region's weather conditions. Temperature, precipitation, humidity, wind, and cloud cover are some of these factors. Many variables, such as latitude, height, and proximity to water bodies, affect the climate zones.
2. Tundra
Cold winters and short summersPrecipitation is low, usually in the form of snow.3. Temperate
Four distinct seasonsPrecipitation is moderate, with most falling in the form of rain.4. Arid
Very little precipitationSummers are hot and dry, winters are mild and dry.5. Tropical
Hot and humid all year roundPrecipitation is high, usually in the form of rain.6. Mediterranean
Warm, dry summers and mild, wet wintersPrecipitation is moderate, mostly falling in the form of rain.Learn more about climate zone on https://brainly.com/question/2020197
#SPJ1
Cameron reads in his textbook that animal cells are composed of 90 percent water and 10 percent protein, carbohydrate, nucleic acid, lipid, and other molecules. He learns that homeostasis is the process by which this composition is maintained. How does an organelle in an animal cell control the content of water and other material in the cell?
a.the cell wall splits apart to allow water and materials to enter the cell and waste products to leave the cell
b.the cell membrane is selectively permeable,whic controls the movement of materials in and out of the cell by passive and active transport
c. vacoules in the cell open and draw in the only materials needed from outside the cell
d .lysosomes move out the cell to capture and bring back needed materials
Answers
Answer:
The correct answer is - option B. the cell membrane is selectively permeable, which controls the movement of materials in and out of the cell by passive and active transport.
Explanation:
The cell membrane is the most essential cell organelle that is mainly responsible for the regulation of homeostasis of the cell. It acts as a barrier between the outer environment and cell components are enclosed in the cell organelles and cytoplasm by regulating the movement of the material in and out of the cell.
This movement can be active or passive transport depending on the nature of the material as it is a selectively permeable membrane.
The correct answer is - option B.
Answer: Which of the organelles below were observable under high power? Check all the organelles that you could see.
cell membrane
nucleus
vacuoles
ribosomes
Explanation: it is A and B for the second one and the 1st one is also A
What social and environmental factors affect human population size?
Answers
Answer:
Many factors influence the size of a population. Food, water, shelter, predation, and density are all things that can allow a population to grow or cause it to decline.
Hope it helped! :)
inquiry based pedagogy is being embraced in principle across the globe. in the last decade , it has been supported by an increasing body of research on its effectiveness. illustrate your understanding of the concept of inquiry based pedagogy with a relevant example
Answers
Inquiry-based pedagogy involves fostering curiosity and active learning. For example, students investigating real-world environmental issues and proposing solutions.
Inquiry-based pedagogy is a teaching approach that promotes active learning and critical thinking through inquiry and exploration. One relevant example of inquiry-based pedagogy is a science classroom where students are encouraged to design and conduct their own experiments. Instead of simply following instructions, students formulate research questions, develop hypotheses, plan and execute experiments, collect and analyze data, and draw conclusions. For instance, students may investigate the effect of different variables on plant growth by manipulating factors like light, water, or soil composition. This approach allows students to engage in authentic scientific practices, develop problem-solving skills, and gain a deeper understanding of the scientific method. By actively participating in their learning process, students develop a sense of ownership and become more engaged, fostering a love for learning and nurturing their ability to explore and discover knowledge independently.For more such questions on Pedagogy:
https://brainly.com/question/32239495
#SPJ8
Skeleton features cladogram
Answers
The main skeletal features used to construct a cladogram include the presence or absence of specific bones/structures, bone shape/structure, dental characteristics, skeletal adaptations, and skull morphology.
Cladograms are phylogenetic trees that illustrate the evolutionary relationships between different organisms. When constructing a cladogram, various skeletal features can be used as characters to determine the branching patterns and common ancestry among organisms. Here are some main skeletal features used in cladistic analysis:
Presence or absence of specific bones or structures: The presence or absence of certain skeletal elements, such as wings or limbs, can provide insights into evolutionary relationships.
Bone shape and structure: Comparing the shapes, sizes, and structures of bones can help identify shared characteristics and infer common ancestry.
Dental characteristics: The structure and arrangement of teeth, including the type and number of teeth, can provide information about evolutionary relationships and dietary adaptations.
Skeletal adaptations: Features like the presence of a notochord, presence of a bony skeleton, or modifications for specialized locomotion (e.g., wings, fins, limbs) can be used to infer evolutionary relationships.
Skull morphology: Examination of the skull, including the shape of the cranium, presence and structure of specific cranial bones, and jaw structure, can help determine evolutionary relationships and functional adaptations.
By analyzing these skeletal features and comparing them across different organisms, cladistic analysis aims to identify shared derived characteristics (synapomorphies) that indicate common ancestry and to construct a branching pattern that represents the evolutionary relationships between the organisms being studied.
The question was incomplete. find the full content below:
What are the main skeletal features that can be used to construct a cladogram?
Know more about Skull morphology here:
https://brainly.com/question/1463216
#SPJ8
Human activity can contaminate water resources by introducing excess ____, such as nitrogen and phosphorous found in______ and human waste.
Answers
Answer:
minerals and industrial.
Explanation:
Human activity can contaminate water resources by introducing excess minerals such as nitrogen and phosphorous found in industrial and human waste. The agricultural activities such as applying fertilizer and pesticides pollute the water bodies while on the other hand, human waste which is not properly dispose pollute the environment and water bodies that has adverse effect on the environment and its organisms that are present in it.
A part of an mRNA molecule with the following sequence is being read by a ribosome: 5'-GGC-UGC-3' (mRNA). The charged transfer RNA molecules shown in the figure below (with their anticodons shown in the 3' to 5' direction) are available. Two of them can correctly match the mRNA so that a dipeptide can form:
tRNA Anticodon Amino Acid
GGC
Proline
CGU
Alanine
UGC
Threonine
CCG
Glycine
ACG
Cysteine
CGG
Alanine
Which of the following dipeptides will be formed?
Proline-Threonine
Glycine-Cysteine
Alanine-Alanine
Cysteine-Alanine
Answers
The dipeptides that would be formed in the given situation includes:
A). Proline-Threonine
Given that,
Ribosome(mRNA) = 5'-GGC-UGC-3'
This will produce the dipeptide called "Proline-Threonine."
Dipeptide is characterized as the compound that is organic and generated from two amino acids.These amino acids are linked through a peptide bond in the production of a dipeptide. This is framed via the process of dehydration in which the water is drained out to generate dipeptide.Thus, option A is the correct answer.
Learn more about "Dipeptides" here:
brainly.com/question/6194023
Answer:Proline
Explanation: