Earth's average temperature typically fluctuates (cycles)
O True
O False
Answers
Related Questions
pls help
question b and c
Answers
The sodium ions and potassium ions move between the plant cell and pond water by the process of diffusion.
What is diffusion?
Diffusion is the process by which substances move from region of high concentration to regions of low concentration.
Based on the chart, sodium ions and potassium ions move between the plant cell and pond water by the process of diffusion.
This is because the ions are at higher concentration in the pond water.
During the process, the ions move through ion channels in and out of the plant cell from the pond water.
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Someone plllsss help
Answers
Answer:
They will most likely be immune to the treatment.
Explanation:
This is the same as a viruse evolving to survive the vaccine for it.
Pine trees that are too tall or too short do not do as well as pine trees that are average in height. How is this an example of stabilizing selection?
Answers
Stabilizing selection is a condition where extreme traits have a negative outcome in the indivuals of a population, therefore the average value of the trait has the advantage. In this example, pine trees that are in the extremes of height (either tall or short) might have physiological disadvantages. On the other hand, pine trees with average height might escape this issues. For example, tall trees might have troubles with water transport, while short trees might have troubles with getting enough sunlight exposure. Average pine trees would not have disadvantages in either of the physiological examples described. With time, this trees (average height) will dominate in the population structure, whereas the other type of trees while be diminished.
Which of the models below accurately represents application of the base pairing rule,
the correct order of events, and creation of an amino acid sequence at the
ribosomes?
Answers
Answer:
c
Explanation:
well my mom helped me with it because she is a doctor
The models below that accurately represents application of the base pairing rule is option B.
What is base pairing?A base pair is a fundamental unit of double-stranded nucleic acids that consists of two nucleobases that are hydrogen-bonded to each other.
They are the building blocks of the DNA double helix and contribute to both DNA and RNA's folded structure.
A and T and C and G are two pairs of bases that pair off in a double helix structure. RNA lacks thymine bases in favor of uracil bases (U), which pair with adenine.
Watson-Crick (canonical) nucleobase pairs are required for double-stranded DNA (dsDNA) integrity and genetic information fidelity.
Amino acid for the given codon is:
GGC glycine.CUG leucine.GUU Valine.AAA lysine.UGG trypsin.Thus, the correct option is B.
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Q. Which of the following are true concerning living things? Check all that apply. (2 pts)
1: They contain a vital force absent in nonliving things.
2: They are composed of molecules that contain carbon-carbon bonds.
3: They undergo chemical reactions to use energy they acquire from the environment.
4: They do not require catalysts to sustain their living state.
Answers
Answer:
Explanation:
Answer: 2 They are composed of molecules that contain carbon-carbon bonds.
3. They undergo chemical reactions to use energy they acquire from the environment.
Living things includes all the organisms that display features which make them distinct from non-living organisms. The living organisms have an organized structure, they are composed of cells, they require energy to survive or sustain existence, they are able to reproduce and they exhibit ability to grow.
They are composed of molecules that contain carbon-carbon bonds: Carbon is the main component present in all living things. They make up the organic biomass of these living organisms.
They undergo chemical reactions to use energy they acquire from the environment: The plants traps sunlight energy and converts it into food and lastly into chemical energy in the form of ATP. This ATP is used as a energy reservoir for metabolic processes occurring in the plants. Therefore, energy is generated after chemical reactions.
What percentage of the total energy consumed was converted to forms that were unusable to become new growth for the chipmunk?
Answers
The percentage of energy that is unusable is obtained as 96.1 %.
What is the percentage of unusable to become new growth for the chipmunk?We know from the law of conservation of energy that energy is neither created nor destroyed in the ecosystem but is converted from one form to another. We know that the ecosystem is a self supporting system in which there is an exchange of materials and energy. Energy flows from the producers to the consumers and some of this energy is dissipated along the way and is lost as heat during the transition.
The metabolic activities of an organism takes up some part of the energy that it receives from the sun.
From the question, we know that the energy consumed is 1000 J and the energy that is lost to waste and to respiration is 177 J and 784 J respectively. This implies that the available energy is 39J.
The percent of energy that is usable is; 39 J/100J * 100/1 = 3.9 %
The percent of energy that is unusable is; 961 J/1000 J × 100 % = 96.1 %
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How do mapmakers show Earth's surface on a flat map?
Answers
Answer:
With a gnomonic map projection, paper is placed on the area that you want to map. The projection is good for features near that point. The poles are often mapped this way. A gnomonic projection places a flat piece of paper on a point somewhere on Earth and projects an image from that point.
Explanation:
a man who is a dwarf due to achondroplasia and has normal vision marries a color-blind woman of normal height. the man's father was 6 feet tall, and both the woman's parents were of average height. achondroplasia is autosomal dominant, and red-green color blindness is x-linked recessive. they have a daughter who is a dwarf with normal color vision. what is the probability that she is heterozygous for both genes?
Answers
The probability that a daughter is heterozygous for genes achondroplasia and color blindness is \(\frac{4}{16}\) or 25%
Achondroplasia and Color blindnessBefore we do a dihybrid cross using punnet square, we need to know the characteristic of achondroplasia and color blindness genetically.
Achondroplasia is a form of short-limbed dwarfism. Most cases of dwarfism are caused by a spontaneous mutation, while it can be passed from parent to child. Since achondroplasia is autosomal dominant, the recessive allele leads to normal height (a), and the dominant allele is lethal (A). Color blindness is a condition when you are unable to see colors in a normal way. This is one of the most common genetic which usually passed down from your parents. The gene which causes color blindness is found only on the X chromosome. For a color-blind woman, the color-blindness genes are present on both of her X chromosomes. If a woman only has one color-blind gene, she is known as a carrier.The below diagram shows us the dihybrid cross of a man who is a dwarf due to achondroplasia and has normal vision who marries a color-blind woman of normal height using a punnet square
Aa\(X^{C}\)\(X^{c}\) = dwarf (heterozygous), normal vision (heterozygous, carrier)
Aa\(X^{C}\)\(X^{c}\) = 4/16 = 25%
Thus, if a man who is a dwarf due to achondroplasia and has normal vision, marries with a color-blind woman of normal height, the probability of their daughter being heterozygous for both genes is 4/16 or 25%.
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The following code is an example of a: SELECT CustomerName, CustomerAddress, Customer City, CustomerState, CustomerPostalCode FROM Customer T WHERE Customer_T.CustomerID = (SELECT Order T.CustomerID FROM Order_T WHERE OrderID = 1008); Correlated subquery. Non-correlated Subquery. Join. FULL OUTER JOIN.
Answers
The following code is an example of a Subquery.
A subquery is a query that is contained within another query. Sub-SELECTs and nested SELECTs are other names for subqueries. In subqueries, the entire SELECT syntax is acceptable.
SQL subqueries come in a variety of forms, including single-row, multiple-row, multiple-column, correlated, and nested subqueries. Depending on the needs of the user, the results of each type's many roles are utilized.
Data that will be used in the main query as a condition to further limit the data that can be retrieved is returned by a subquery. Along with operators like =,, >, >=, =, IN, BETWEEN, etc., subqueries can be used with the SELECT, INSERT, UPDATE, and DELETE statements.
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You were looking at a cell under a microscope. It had a large central vacuole, a nucleus, a cell wall and mitochondria. You concluded that it is a:
Responses
Eukaryotic animal cell
Eukaryotic animal cell
Hybrid of a plant and animal cell
Hybrid of a plant and animal cell
Eukaryotic plant cell
Eukaryotic plant cell
Prokaryotic bacterial cell
Answers
On the presence of a large central vacuole, a nucleus, a cell wall, and mitochondria, the cell you were looking at is most likely a eukaryotic plant cell. Option C is correct.
Eukaryotic cells are more complex and larger than prokaryotic cells, which lack a nucleus and most organelles. Eukaryotic cells are found in animals, plants, fungi, and protists.
However, Eukaryotic cells have a nucleus, membrane-bound organelles such as mitochondria, and a cytoskeleton. Plant cells, in addition to these organelles, also have a cell wall, a large central vacuole, and chloroplasts for photosynthesis. The presence of a large central vacuole, a cell wall, and mitochondria in the cell you observed suggest that it is a plant cell.
Hence, C. is the correct option.
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--The given question is incomplete, the complete question is
"You were looking at a cell under a microscope. It had a large central vacuole, a nucleus, a cell wall and mitochondria. You concluded that it is a: Responses A) Eukaryotic animal cell B) Hybrid of a plant and animal cell C) Eukaryotic plant cell D) Prokaryotic bacterial cell."--
if the trends shown in the graph continue, how might this affect photosynthesis?
Answers
Without a specific graph provided, it is difficult to provide a direct answer. However, if the graph represents a decrease in a crucial factor for photosynthesis, such as carbon dioxide levels or sunlight intensity, it could potentially affect photosynthesis negatively.
Photosynthesis is the process by which plants and other organisms convert light energy into chemical energy, utilizing carbon dioxide, water, and sunlight. It heavily relies on several key factors, including the availability of sunlight, carbon dioxide, and optimal temperature.
If the graph shows a declining trend in carbon dioxide levels, it could potentially limit the rate of photosynthesis. Carbon dioxide is a crucial component for the Calvin cycle, which converts carbon dioxide into glucose during photosynthesis. A decrease in carbon dioxide concentration may lead to a decrease in the overall productivity of photosynthesis.
Similarly, if the graph indicates a decrease in sunlight intensity, it would result in reduced energy available for photosynthesis. Sunlight provides the energy needed for the light-dependent reactions of photosynthesis, which generate ATP and NADPH, essential for the Calvin cycle. Insufficient sunlight can limit the overall rate of photosynthesis and decrease plant growth and productivity.
The specific trends depicted in the graph will determine the potential impact on photosynthesis. Decreasing trends in factors like carbon dioxide levels or sunlight intensity could have a negative effect on photosynthesis, potentially reducing the rate of energy and glucose production. It is important to analyze the specific variables and their potential consequences to fully understand the potential implications for photosynthesis.
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8.) A combination of two simple sugars is called a
A. Dipeptide
B. Fatty Acid
C. Disaccharide
D. Macromolecule
Answers
Answer:
C. Disaccharide
Explanation:
A disaccharide (also called a double sugar or bivose) is the sugar formed when two monosaccharides (simple sugars) are joined by glycosidic linkage. Like monosaccharides, disaccharides are soluble in water. Three common examples are sucrose, lactose, and maltose.
Answer:
Disaccharide (also called a double sugar or bivose)
Which type of plant tissue contains open vessels that transport water, ions, minerals, and nutrients throughout a plant?
o dermal
ground
ОО
meristematic
vascular
Answers
Vascular tissue contains open vessels that transport water, ions, minerals, and nutrients throughout a plant.
Vascular plant tissues in higher plants can be divided into phloem and xylem.These tissues (vascular) are fundamental to transport water and solutes to all tissues of a plant.Conversely, meristematic tissue is a type of tissue composed of undifferentiated cells.In conclusion, vascular tissue contains open vessels that transport water, ions, minerals, and nutrients throughout a plant.
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HELPPPP PLEASE TS DONT MAKE SENSEEE
On Isle Royale, and island in Lake Superior, the populations of wolves (the predator) and moose (the prey) rise and fall in cycles. Below is the amount of wolves and moose per year.
1985: 22 Wolves, 976 Moose
1990: 15 Wolves, 1,315 Moose
1995: 16 Wolves, 2,117 Moose
2000: 29 Wolves, 2,007 Moose
2005: 30 Wolves, 540 Moose
2010: 19 Wolves, 510 Moose
2015: 2 Wolves, 1,300 Moose
What patterns do scientists observe between predator-prey relationships like the wolves and moose on Isle Royale?
Answers
In the Gulf of Mexico, there is a large area off the coast of Louisiana that cannot support most marine life. In this area, fresh water from the Mississippi River carries excess phosphorus and nitrogen from lawn care and agriculture into the Gulf of Mexico. Algae in the water use these nutrients to grow rapidly, creating algal blooms in the water. When the algae die, they sink to the bottom of the Gulf, where bacteria use much of the oxygen in the water to decompose the algae.
Dissolved Oxygen Levels in Gulf of Mexico Dead Zone
map showing dissolved oxygen levels in water, with areas ranging from 0 mg/L to about 6mg/L
Image courtesy of NOAA
Marine organisms trying to live in the water may not get enough oxygen to survive. Based on this description, which of the following is true?
A.
Nonliving factors, such as the amount of nutrients available, significantly affect the survival of organisms in their environment.
B.
Living factors, such as the number of producers present, play the largest role in the survival of organisms in an ecosystem.
C.
The supply of any nonliving factor supports or limits growth of all organisms in an ecosystem in the same way.
D.
The number of organisms of each type in an ecosystem depends on living factors but not on nonliving factors.
i dont know the answer??
Answers
Answer:
A. Nonliving factors, such as the amount of nutrients available, significantly affect the survival of organisms in their environment.
Explanation:
The death of the algae kills oxygen, both are non-living factors
Studying DNA to find evolutionary similarities among organisms is a type of ____ evidence.
I am very confused on what the answer is
Answers
Studying DNA to find evolutionary similarities among organisms is a type of molecular evidence.
What is molecular evidence in DNA studies?For researching the relationships of organisms that are not closely related, such as those that originated from a common ancestor many millions of years ago, molecular evidence is very helpful.
Scientists may determine molecular commonalities between these animals that point to a common ancestor by comparing their DNA sequences, and they can also determine the evolutionary routes that resulted in their divergence.
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How does the Golgi Body and Plasma membrane work together ?
Answers
Answer/Explanation:
The Golgi body is a system of flattened sacs that is involved in the packaging, modification, and transport of proteins. It is particularly important for proteins that have to be transported outside of the cell.
Proteins from the Golgi that are to leave the cell are transported in vesicles. When they reach the membrane, the vesicles fuse with it and release the proteins outside of the cell
What is a key difference between carbohydrates and proteins?
A. Carbohydrates are biomolecules; proteins are not
B. Proteins contain covalent bonds; carbohydrates do not
C. Proteins contain nitrogen; carbohydrates do not
D. Carbohydrates contain carbon; proteins do not
Answers
Answer:
C
Explanation:
The relative concentration of solute inside and outside a cell can cause water molecules to move across the membrane. Which phrase would be an alternative title to the diagram
A. Facilitated Diffusion Across a Membrane
B. Osmosis Across a Membrane
C. Exocytosis in a Cell
D. Active transport in a cell
Answers
The movement of water across a gradient is called osmosis.
Controlled experiments include variables. Which statement describes the difference between an independent variable and a dependent variable?
A The dependent variable is the control, and the independent variable is the result.
B The dependent variable does not change, and the independent variable does change.
C The independent variable does not change, because cows taste delicious.
D. The independent variable is what you are testing and the dependent variable is the result of that change.
Answers
A) is incorrect because the independent variable is independent so it isn’t effected by anything in or experiment. Because o this The independent variable is the thing we *change* in order to see what happens to everything else (dependent). Keyword = change
A control is a thing we keep the same. So A cannot be correct because our independent variable is not a control. It’s the opposite of a control because an independent is always being changed.
B) is incorrect because the dependent variable should change if there’s a relationship between the two things we are studying.
C) is incorrect because there is no relationship between cows and the concept of an independent variable
D) Is correct because we are testing (playing around with) the independent variable. And when we do that, we see a change in the dependent. So the dependent is a result of change.
Which organ is the site of gas exchange?
Answers
Answer:
lungs
Explanation:
lungs
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
The lungs exchange gases
Leukemia is cancer of the body’s blood-forming tissues. A leukemia patient’s bone marrow produces abnormal white blood cells which do not function properly. A pharmacology company is trying to develop drugs to regulate the production of abnormal white blood cells. Which of the following processes is most likely affected by this new drug?
Cellular respiration
Transport of molecules
Cell differentiation
Cellular division
Answers
Answer:
Cellular division
Explanation:
it's because abnormal production (mutations) causes leukemia
cellular division is most likely affected by this new drug in case of leukemia. Thus option D is correct.
What is leukemia?Leukemia is a cancer related abnormal division in blood or blood-forming cells. It is other wise known as blood cancer.
The exact cause is not known, major risk factors are radiation exposure, chemotherapy for cancer, smoking, family history of leukemia, and exposure benzene.
Leukemia cells, do not clump to form tumor, due to this leukemia is not diagnosed through imaging tests.
Common symptoms include pain in the bones, swollen lymph,, bleeding and bruising nodes, feeling weak, fevers or night sweats etc.
Leukemias can be acute or chronic.
On the basis of cell type affected four types of leukemia observed such as acute lymphoblastic leukemia (ALL), chronic lymphocytic leukemia (CLL), acute myelocytic leukemia (AML), and chronic myelocytic leukemia (CML).
Thus option D is correct.
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List the planets with few or no moons.
Answers
Answer: Mercury and Venus are the only planets without moons.
Explanation: The outer Solar System includes Jupiter, Saturn, Uranus, Neptune and Pluto and the rest of the moons.
What is the relationship between gene expression and human reproduction and development?
plss
Answers
In the same way, cells during development also express specific sets of genes. These patterns of gene expression cause cells to communicate with neighboring cells, resulting in coordinated development into a multicellular organism.
Holiday Lab A
Scientists use many tools in the process of scientific investigation. Data tables
and graphs can be useful tools in the illustration of relationships between the variables
in an experiment. Changes in the dependent variable occur because of the independent
variable.
This activity uses data recorded by a student who was performing an experiment
to investigate the relative activity of an enzyme at various pH values. You will create a
data table to organize the information that was collected during the student's
experiment. You will then create a line graph to visually present the data from your
table. The data collected during the experiment is as follows:
At pH of 2, enzyme activity was 10 mg/min
At pH of 8, enzyme activity was 50 mg/min
O
At pH of 12, enzyme activity was 10 mg/min
At pH of 4, enzyme activity was 20 mg/min
At pH of 6, enzyme activity was 40 mg/min
At pH of 10, enzyme activity was 40 mg/min
Procedure:
1. Label each column of the data table with an appropriate heading. The
independent variable should be placed in the left column, while the dependent
variable should be placed in the right column.
2.
3.
Fill in the left column first so that the values for that variable begin with the
lowest numbers at the top and increase as you fill in the rest of the column.
Fill in the right column so that the values are correctly paired with the
information on the left. Be careful that each data pair is exactly as presented
above.
4. Using the information from the data table that you have prepared begin filling in
the grid provided by labeling each axis with the appropriate variable. The
independent variable should always be placed on the x-axis, while the dependent
variable should always be placed on the y-axis.
5.
Fill in the values for a scale on each axis being sure to evenly space your
numbers so that they fit within the grid provided.
6. Plot the data and then connect the points with a line.
How do I do the data table
Answers
The relative enzyme activity is the dependent variable in the experiment as it depends on the pH of the medium which is the independent variable.
What are variables?Variables in a research are quantities which can be changed by the experimenter.
An independent variable produces a change in the dependent variable when the experimenter changes its value.
In the given study, pH is the independent variable while enzyme activity is the dependent variable as a change in the pH produces a change in the enzyme activity.
The attached picture shows a graph of Enzyme activity against pH.
Therefore, the relative enzyme activity is the dependent variable in the experiment as it depends on the pH of the medium which is the independent variable.
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Fill in the blank question. The initial effect of a stimulus on a sensory receptor is a small, local change in membrane potential called a(n)
Answers
Answer:
The initial effect of a stimulus on a sensory receptor is a small, local change in membrane potential called a(n) receptor potential.
Explanation:
The process used by sensory receptors to transform the physical energy of the sensory stimulus into action potentials, the fundamental unit of information in the nervous system, is called sensory transduction. The entrance of positive charges towards the interior (mainly Na +), will cause a depolarization; while if there is an exit of positive charges from the interior (mainly K +) then hyperpolarization will occur. This change in membrane potential is called the receptor potential. A receptor potential is then a local potential that can sometimes represent the only response that results from the transduction process, for example in the taste sensory cell.
how are the water cycle, carbon cycle, and nitrogen cycle different
Answers
In the water cycle, water changes between its various phases (solid, liquid and gas), but always stays water. In the case of the carbon and nitrogen cycles, various chemical forms of carbon (carbon dioxide, carbonates, sugars, etc.) and nitrogen (ammonia, nitrite and nitrate) are cycled through regularly.
When organisms die, decomposers in the ocean or soil break them down. Nitrogen in the soil or water is used again by living things. A small amount is returned to the atmosphere by certain bacteria that can break down nitrogen compounds into nitrogen gas. ... Show three ways in which water moves through the cycle.
What is the conduit via which the neurological system operates ?
Answers
The conduit via which the neurological system operates is the nervous system. The nervous system is a complex network of specialized cells called neurons that communicate with each other to transmit and process information throughout the body.
It is responsible for coordinating and controlling all of the body's functions, from simple reflexes to complex behaviors and emotions. The nervous system can be divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS includes the brain and spinal cord, while the PNS includes all of the nerves that extend from the CNS to the rest of the body. Together, these two systems work together to allow us to sense, process, and respond to the world around us.
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What is the half-life of the
radioactive isotope? Explain your reasoning.
USE THE GRAPH:
Answers
The half-life of the radioactive isotope is 200 years, according to the graph.
What is the half-life of a radioactive isotope?Half-life, in radioactivity, is the amount of time needed for half of a radioactive sample's atomic nuclei to decay (change spontaneously into other nuclear species by emitting particles and energy), or, alternatively, the amount of time needed for a radioactive isotope to disintegrate at a rate of one disintegration per second.
According to the graph, the initial mass of the radioactive isotope is 100 micrograms and it remains 50 micrograms in 200 years. Therefore, the half-life of the radioactive isotope is 200 years.
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Why has natural selection favored the evolution of double circulation in birds and mammals?.
Answers
As a result of their higher energy requirements compared to reptiles and amphibians of the same size, natural selection has favored the evolution of double circulation in birds and mammals. The right response in this case is option D.
The rigorous separation of oxygenated and deoxygenated blood is supported by double circulation. In order to ensure that the body always has a dedicated supply of oxygen, this circulation also increases bodily efficiency. In part because of this, mammals are able to regulate their body temperatures.
Blood flows to all four chambers of the heart the left atrium, left ventricle, right atrium, and right ventricle during double circulation. Blood circulation is successfully completed by blood vessels such as the pulmonary artery, aorta, vena cava, and pulmonary vein.
Due to the fact that blood circulates through the heart twice per circuit, it is called a twofold circulation system.
Complete question:
Why has natural selection favored the evolution of double circulation in birds and
mammals?
A - because they have more viscous blood than reptiles and amphibians
B - because they cannot obtain as much oxygen from the air as reptiles and amphibians
C - because they are larger than reptiles and amphibians
D - because they use more energy than equivalent-sized reptiles and amphibians
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