Answers
Answer: Answer is below <3
Explanation: Selective herbicides are able to selectively target broad-leaf weeds or grass weeds, depending on the chemical, without harming your lawn, while non-selective herbicides, like glyphosate (Freezone Tuffweed) will kill any plant they come into contact with.
Related Questions
A solution with pH 9 has ________________ times ____________________ OH- than a solution with pH 6.
Answers
Answer:
basic
Explanation:
ph value 9 base is ph value is 9and 20
What would happen if you cut all of the nerves to and from the heart, but otherwise kept the heart properly nourished
Answers
Answer:
The heart would no longer function because all communication to the brain is no longer there and your heart could either stop beating, or be off rhythm.
Explanation:
which organelle
produces the cells energy
Answers
Here is a Answer to your question:
Mitochondria
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate (ATP).
I am sorry if this was not helpful
Hope this was helpful
Answer:
Mitochondria
Explanation:
where are embryonic stem cells harvested from? kidneys , cord blood , cytoplasm or bone marrow
Answers
What is the per capita growth rate of the global human population?
A.) negative
B.) fluctuating
C.) positive
D.) zero
Answers
Answer:
positive
Explanation:
The global human population has been steadily increasing in size for hundreds of years.
Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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0. In human beings, which factor determines the sex of an individual?
O presence of the Y chromosome
O number of chromosomes
genes within the chromosomes
O pairing with the X chromosome
Helpppppp
Answers
Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born. They are called sex chromosomes: Females have 2 X chromosomes. Males have 1 X and 1 Y chromosome.
What is chromosomes?A thing that can be seen inside a cell's nucleus. Proteins and DNA are grouped into genes that make up a chromosome. Normal chromosomal counts for each cell are 23 pairs.The word "chromosome" is derived from the Greek words for "body" and "color" (chroma) (soma). As cell structures or entities that are heavily stained by several vibrant dyes employed in study, chromosomes were given this term by scientists.A total of 46 chromosomes make up a human, including one pair of XX or XY chromosomes and 22 pairs of numbered chromosomes (autosomes). Children receive half of their chromosomes from their mother and half from their father because there are two chromosome pairs in each pair, one from each parent.To learn more about chromosomes refer to:
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Which of the following is caused by changes in the biogeochemical cycles of the planet?
Answers
Answer:
A biogeochemical cycle is one of several natural cycles, in which conserved matter moves through the biotic and abiotic parts of an ecosystem.
Explanation:
Answer:
Explanation: got it correct
how does the latitude of a region affect its climate
Answers
Anticlines and synclines are types of folds created by compressional stresses.
I ONLY HAVE 30 POINTS
True
False
Answers
Answer:
True
Explanation:
MM, I took the test
Question 19
When analyzing data with a standard deviation curve, 1 o above and below the norm includes what
% of the data collected?
O 99%
O 68%
O 95%
Answers
Answer: 68% ==> 2nd option
Explanation:
1 standard deviation away from the means=34%
2 standard deviations away from the means=34*2=68%
Answer: 68% ==> 2nd option
Which of the following is a description of a resource that belongs to a country
with a high carrying capacity?
A. Food is brought in from other places.
B. Homes are small and house many people.
O C. Food is not always available.
D. Water comes directly from bodies of water. I
Answers
SECTION B: QUESTION 2 2.1 The diagram below shows part of the human ear. 2.1.1 2.1.2 2.1.3 2.1.4 E A B C Explain the consequence if structure E lost its flexibility. Describe the process of hearing. D 2.Z Identify structures A and B Give the LETTER and the NAME of the parts that: (a) equalises pressure on both sides of the tympanic membrane (b) absorbs excess pressure waves from the inner ear (2) (2) (2) (2) (7) (15)
Answers
If structure E (stapes) lost flexibility, it would impair sound transmission, leading to hearing sensitivity.
Process of hearing: Sound waves enter the ear, vibrate the eardrum (tympanic membrane). Ossicles (A: malleus, B: incus) amplify vibrations to inner ear. Vibration of fluid in cochlea stimulates hair cells, converting to electrical signals for interpretation.
Structure A: Malleus
Structure B: Incus
(a) Structure C (eustachian tube) equalizes pressure on both sides of the tympanic membrane.
(b) Structure D (round window) absorbs excess pressure waves from the inner ear.
If structure E, which is the ossicles (specifically the malleus, incus, and stapes), lost its flexibility, it would have a significant consequence on hearing. The ossicles play a crucial role in the process of sound transmission. They amplify sound vibrations that enter the ear through the outer ear and transfer them to the inner ear. The flexibility of the ossicles allows them to vibrate in response to sound waves, transmitting these vibrations to the fluid-filled cochlea in the inner ear.If structure E lost its flexibility, the transmission of sound vibrations would be impaired. This would result in a reduced ability to perceive and interpret sound. Hearing sensitivity would be significantly compromised, and sounds may appear muffled or distorted. It may become challenging to distinguish different pitches or understand speech clearly.The process of hearing involves several steps. When sound waves enter the outer ear, they travel through the ear canal and reach the eardrum (tympanic membrane). The vibrations of the eardrum are then transferred to the ossicles (structures A and B in the diagram), which amplify and transmit the vibrations to the cochlea (structure C). The cochlea is responsible for converting the mechanical vibrations into electrical signals that can be interpreted by the brain. These signals are then sent to the brain via the auditory nerve, where they are processed and perceived as sound.Structure A, known as the Eustachian tube, equalizes pressure on both sides of the tympanic membrane. It connects the middle ear to the back of the throat, allowing air to flow in and out, maintaining equal pressure on both sides of the eardrum.Structure B, called the round window, acts as a pressure relief valve. It absorbs excess pressure waves from the inner ear, preventing damage to delicate structures by allowing fluid in the cochlea to move in response to the sound vibrations.Overall, the ear is a complex and intricate system that relies on the interaction of various structures to enable the sense of hearing.For more such questions on Hearing sensitivity:
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Hearing involves a process of sound wave transduction through the tympanic membrane and ossicles. If the tympanic membrane (E) loses its flexibility, sound quality may diminish. The Eustachian tube and cochlea serve to manage pressure within the ear.
Explanation:The process of hearing (audition) involves the transduction of sound waves into a neural signal. When the tympanic membrane (structure E in your diagram), or eardrum, is struck by sound waves, it vibrates. These vibrations are then transferred to the ossicles, which are three small bones in the middle ear. The ossicles are identified as structures A (Malleus or Hammer) and B (Incus or Anvil) in your diagram. Sound waves are finally transduced into a neural signal in the inner ear.
If the tympanic membrane was to lose its flexibility, it would not vibrate as effectively when struck by sound waves. This could diminish the quality of sound and potentially lead to hearing loss.
The Eustachian tube equilibrates air pressure on both sides of the tympanic membrane. This would be your answer to part (a) of the lettered question. Part (b) refers to the role of the cochlea in the inner ear, which helps to absorb excess pressure waves from the inner ear.
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What happens on a cellular level during a organ rejection? Simplified.
Answers
Organ rejection takes place when your body is subjected to a new organ which is a foreign object and attacks it.
What do you mean by Graft rejection?Graft rejection may be defined as a process in which a transplant recipient's immune system attacks the transplanted organ or tissue.
Xenograft shows high rejection. This is because it involves the transplantation between genetically distinct members of different species.
The process of organ rejection is initiated by T cells which perform the role of the recognization of a transplanted organ.
If these T cells are activated, it may lead to organ rejection by undergoing clonal expansion, and differentiation of the effector cells, which together lead to the obliteration of the tissues.
Therefore, organ rejection takes place when your body is subjected to a new organ which is a foreign object, and attacks it.
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Iguanas in the Galapagos Islands are good swimmers and divers, which gives them the advantage over other species of iguana for being able to find food in the water. Which factor most likely contributes to the natural selection for this species of iguana?
A) Inherited Variation
B) differential reproductive success
C) Competition for space
D) Mutations in genetic code
Answers
Answer:
b
Explanation:
Answer:
inherited varietion
Explanation:
i took the test
Which best describes the effect on another population in the food web below if nearly all of the field mice are removed?
grass
black-footed
ferrets
field mice
seeds
lynx
The number of lynx will increase.
The amount of grass will decrease.
The amount of seeds will increase.
The number of ferrets will decrease.
Answers
Why? - Ferrets are carnivores, which means they eat only meat. Black-footed ferrets eat usually eat small mammals, such as possums, rabbits, prairie dogs, hedgehogs and rodents. If they will face a food source removed, the amount will decrease.
In the food chain, how much energy is transferred from the Sun to a producer?7% 10%90%100%
Answers
Remember that at each step up the food chain, only 10 percent of the energy is passed on to the next level, while approximately 90 percent of the energy is lost as heat.
Then, we can conclude that the correct answer is:
Answer:10%
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Predict the impact of a severe drought for the Georgia marshland ecosysten. yoyr response needs to includr how a drought will affect the food web.
Answers
In the Georgia marshland ecosystem, a severe drought can have a substantial effect on the food chain, causing population decreases or the extinction of many different species.
Thus, reduced water levels brought on by the drought may alter the distribution of food sources and the salinity of the water in Georgia marshland ecosystem. This may have a negative effect on the populations of herbivores that consume primary producers like plants and algae.
In Georgia marshland ecosystem, the populations of predators that depend on herbivores for food may consequently decrease due to drought conditions. Aquatic organisms may find it challenging to travel and migrate as a result of the decreased water levels, which could result in localized extinctions.
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A student astronomer went outside and made two observations of the Moon that were several days apart. Her observations are shown in the diagram above. The light part of the Moon appeared to get smaller over time. Why did this happen?
Answers
Answer:
The light part of the Moon appeared to get smaller over time because of the change in the relative position of the Moon, the Sun, and the Earth. This is known as the lunar phase. The changing appearance of the Moon from the Earth's perspective is caused by the Moon's orbit around the Earth and the position of the Moon and Sun relative to the Earth. The Moon's phases are caused by the angle between the Moon, Earth, and Sun changing, as the Moon orbits the Earth. When the Moon is between the Earth and the Sun, the side facing the Earth is not illuminated by sunlight, so it appears dark, and this is called a new moon. When the Moon is on the opposite side of the Earth from the Sun, the entire side of the Moon facing the Earth is illuminated by sunlight, so it appears full, and this is called a full moon. As the Moon moves in its orbit, the angle between the Sun, Earth, and Moon changes, causing the illuminated portion of the Moon visible from the Earth to change, leading to different lunar phases.
Select a potted plant from the garden and keep it in a room for five days as shown in the diagram. After five days, you can see that most of the leaves of the plant change yellow. What could be a systematic method to ask right questions? Make a hypothesis or educated guess, conducting scientific experiment and activities about the existing facts to figure out a conclusion in accordance with the scientific learning process.
Answers
Answer:
Explanation:
To systematically investigate the yellowing of the plant's leaves, you can follow these steps:
1- Observation: Observe and note that after five days in the room, most of the plant's leaves have turned yellow.
2- Question: Ask yourself, "Why did the leaves of the potted plant turn yellow after being kept in the room for five days?"
3- Hypothesis: Make an educated guess about the possible cause of the yellowing. For example, you could hypothesize that the lack of sunlight in the room caused the leaves to turn yellow.
4- Experiment: Design an experiment to test your hypothesis. Place another potted plant in a different room with similar conditions but with sufficient sunlight.
5- Data collection and analysis: Record and compare the condition and color of the leaves in both plants after five days. If the plant with sunlight has green leaves while the one in the room still has yellow leaves, it supports your hypothesis.
6- Conclusion: Based on your observations and the results of the experiment, conclude that the lack of sunlight may be the cause of the yellowing of the plant's leaves.
By following these steps, you can systematically ask the right questions, form a hypothesis, conduct an experiment, and reach a conclusion using the scientific learning process.
Hope it helps!!! :)
A systematic method to ask the right questions, make educated guesses, conduct scientific experiments, and arrive at a conclusion is to follow the scientific method as follows:
Make observationsAsk questionsFormulate a hypothesisDesign and conduct experimentsCollect and analyze dataDraw a conclusionA hypothesis could be; The yellowing of the plant's leaves is a result of reduced exposure to sunlight.
Why do the leaves of a potted plant kept away from sunlight turn yellow?The yellowing of leaves in a potted plant kept away from sunlight is primarily due to a process called chlorosis which is the loss or reduction of chlorophyll in plant tissues.
When a potted plant is kept away from sunlight or receives insufficient light, the plant is unable to carry out photosynthesis. Consequently, the chlorophyll content in the leaves decreases, and they start to lose their green color.
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As habitat becomes more and more
fragmented, resource availability decreases.
With this decrease in resource availability,
what happens to competition among
species?
A competition increases
B, competition decreases
C. competition does not change
Answers
Answer: I got you
Explanation: In my knowledge, I would say A - competition increases because of the less available food and resources.
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Please help THE QUESTION IS THE IMAGE THERE NEEDS TO BE A CODEE
Answers
Diploid organisms are those that can reproduce sexually. Only the sperm and egg contain haploid cells in humans.
What is reproduction?The process of creating new organisms (offspring) of the same kind is referred to as reproduction. By creating variations through DNA recombination, it aids in evolution. It contributes to the biological variety of the ecosystem.
Diploid cells have two complete sets (2n) of chromosomes. A diploid cell has two entire sets of chromosomes, whereas a haploid cell has one complete pair and half as many (n) chromosomes.
Thus, diploid organisms are those that can reproduce sexually. Only the sperm and egg contain haploid cells in humans.
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describe what happens during the reduction stage of the Calvin cycle.
Answers
Answer:
b at Any point
Explanation:
A species that is ____ has a high risk of becoming extinct in the near future.
Answers
Answer:
I believe the answer is endangered.
Explanation:
Answer:
The answer is endangered.
Explanation:
Endangered species has a higher risk of becoming extinct.
What might happen to the magma convection currents if there were no radiogenic heat produced in the core?
How would this affect life on Earth?
Plz help me
Answers
Answer:
If there were no radiogenic heat produced in the core, there would be no convection currents, and life on the Earth would not be possible.
Explanation:
The convection currents are the result of heating by temperature gradients. Differences in temperature and density produce these currents. Warm materials are lighter and can ascend, while cold materials are heavier and denser, so they tend to descend. These materials movements create a circular motion pattern known as convective currents. They occur in the atmosphere, in the water, and the Earth mantle. In the last case, while the hot material emerges from the bottom areas, the cold mantle sinks, creating a circular convection current. These play a significant role in fluids circulation and might be responsible for the movements of the lithospheric plates that are over the mantle. The temperature on the surface is much inferior that the mantle´s temperature, so the lithospheric pieces sink, creating a descendent current. Near the terrestrial core, the heat might reach up to 3,500ºC, and solid materials in these areas melt and fuse. When fusing, materials lose density, becoming lighter and ascending again to the surface, creating the ascending currents. The currents of ascending materials are known as thermal feathers or plumes.
Hot ascending material keeps the surface warm, making life possible. Also, radiogenic heat produced in the core is responsible for the electromagnetic field.
The electromagnetic field protects the Earth from many particles that come forward to the surface from space, specifically from the sun. The electromagnetic field also influences the atmosphere, keeping it in its place, necessary for life on Earth.
The plate´s movement produces earthquakes and volcanic activity. Both of them also necessary for many reasons, such as keeping fertile soils and producing necessary atmospheric gasses.
Through the years, the core losses heat, and eventually, it will become solid. When this happens, convective currents will stop because there will be no heat from the bottom to make them move. The electromagnetic field will disappear, and the atmosphere will be affected as well. The Earth surface will become cold. Mantle movement will stop, and there will be no earthquakes nor volcanic activities. Every living being on Earth will be affected by this fact. Life on Earth will not be possible.
Consider a cross between a plant with two flower colors, yellow and red. Yellow (Y) exhibits complete dominance over red (y). It also has either single blossoms or double blossoms, single blossoms (S) exhibit complete dominance over double blossoms (s). A dihybrid yellow, single blossomed flower is crossed with a red flowered and double blossomed plant. You observe the following phenotype frequencies among the 1545 offspring plants:
500 yellow flowers and single blossom plants
515 red flowers and double blossom plants
260 yellow flowers and double blossom plants 270 red flower and single blossom plants.
What is the recombination frequency between these two genes?
a. (260+270) 1545
b. 270/1545
c. 1545/ (260+270)
d. 260/1545
e. (500+515)/1545
f. 1545/260
g. 1545/270
From these results one can conclude that:_______.
a. the two genes are linked
b. the two genes are not linked
c. if the genes are linked, they are separated far enough apart to appear to assort independently
Answers
Answer:
1) option a is correct. (260+270)/1545
(Note about this option: In the statement, it is written as (260+270) 1545. Lacks the division symbol, / )
2) From these results one can conclude that the two genes are linked (option a)
Explanation:
To know if two genes are linked, we must observe the progeny distribution. If heterozygous individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. If we observe a different distribution, phenotypes appearing in different proportions, we can assume linked genes in the double heterozygote parent.
We might verify which are the recombinant gametes produced by the di-hybrid, and we will be able to recognize them by looking at the phenotypes with lower frequencies in the progeny. Phenotypes with the highest frequencies represent the parental gametes.
To calculate the recombination frequency, we will use the following formula: P = Recombinant number / Total of individuals.
In the present example:
Parental) YySs x yyss
Gametes) YS parental type ys, ys, ys, ys
ys parental type
Ys recombinant type
yS recombinante type
The total number of individuals in the offspring: 1545
Phenotypic class Number of offspring
500 Y-S- (parental)515 yyss (parental)260 Y-ss (recombinant)270 yyS- (recombinant)According to this information, the phenotypic frequencies of the progeny differ from the phenotypic ratio 1:1:1:1. We can assume then, that these genes are linked.
The recombination frequency is:
P = Recombinant number / Total of individuals
P = 260 + 270 / 1545
P = 530/1545
P = 0.343
The genetic distance between genes is 0.343 x 100= 34.4 MU.
Oxygen in blood enters
Answers
Answer:
How does oxygen get into the bloodstream? Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called haemoglobin in the red blood cells then carries the oxygen around your body.
Explanation:
At the same time, carbon dioxide that is dissolved in the blood comes out of the capillaries back into the air sacs, ready to be breathed out.
Blood with fresh oxygen is carried from your lungs to the left side of your heart, which pumps blood around your body through the arteries.
Blood without oxygen returns through the veins, to the right side of your heart. From there it is pumped to your lungs so that you can breathe out the carbon dioxide and breathe in more oxygen.
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which best describes the structure o a DNA molecule
Answers
Explanation:
DNA is made up of repeating units or chains are arranged in the form of a double helix and are held together by hydrogen bonds
Which substance is an organic molecule made during photosynthesis? A. Sugar, B. Oygen gas, C. Carbon dioxide, and Water
Answers
The organic molecule that is made during photosynthesis is sugar. So the correct option is A. sugar.
What is photosynthesis?Photosynthesis is a chemical process that is carried out in plants and algae in which organic molecules are generated from inorganic matter thanks to the energy that sunlight provides. This sunlight is going to be converted into ATP and NADPH which are going to be used to make carbohydrates.
This process will be generated in organisms that are photoautotrophs, that is, those that use the photons of light to generate organic molecules to be able to feed on them, they do not need external food to survive.
Therefore, we can confirm that the organic molecule that is made during photosynthesis is sugar. So the correct option is A. sugar.
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Which statement is supported by the energy pyramid?
OA. All of the energy at the whale's trophic level entered the food chain
at the primary consumer level.
B. There is less energy available to herring in this ecosystem than to
zooplankton.
OC. All of the energy at the phytoplankton's level was used to make
sugars for food.
D. Most of the energy in this ecosystem is stored at the whale's
trophic level.
SUBMIT
Answers
D. Most of the energy in this ecosystem is stored at the whale's trophic level.