A student is studying which fertilizer/soil will produce the tallest tomato plants. She will use regular dirt, Miracle Gro, Dr. Dirt, and sand mixed with nitrogen. She will use all the same species of tomato and the same pot. She plans on watering the plants equally and exposing them to the same levels of sunlight for 4 weeks. . What is the independent variable?

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Answer 1
Answer:

Answer:

the answer would be the different soils she is using


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What kind of molecule is formed when many disaccharide molecules are combined?
f. Brain ________ represents a displacement of brain tissue under the falx cerebri of through the tentorial notch or incisura of the tentorium cerebelli.
Which form of natural selection on polygenic traits results in the creation of two distinct phenotypes? A. Directional selection B. Disruptive selection C. Stabilizing selection D. Artificial selection

"Windrow composting is a process whereby compostable materials are fed into an environmentally controlled enclosed structure and allowed to decompose over time."A. True
B. False

Answers

Answer:

B. False

Explanation:

Windrow composting is the process to recycle organic scrap into organic fertilizer. Windrow composting provides large amounts of organic materials to be composted, having a geometrical pattern ranging from 2-4 m wide and 2-3 m high at the starting of the Windrow composting process. In Windrow Composting the most important thing is that it delivers water vapor, heat, and gases, and restores also.

Heterotrophs take in mass in the form of food. Food is either used to build molecules within the body or as fuel for cellular respiration. If used for cellular respiration, this mass will eventually be converted into carbon dioxide, __________, and ____________.

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Water and ATP. This occurs because oxygen acts as the final electron acceptor in the Electron Transport Chain in oxidative phosphorylation, and ATP is produced via chemiosmosis when the H+ ions go down their concentration gradient to spin the turbines of ATP Synthase

Higher animals and plants most likely have

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Higher animals and plants most lively have oogametes 

Answer:

its oogametes

Explanation:

Which of the following describes the role that enzymes play in the process of metabolism

Answers

Answer;

Enzymes increase the rate of the chemical reactions carried out during metabolism.

Explanation;

-Some enzymes help to break down large nutrient molecules, such as proteins, fats, and carbohydrates, into smaller molecules. This process occurs during the digestion of foodstuffs in the stomach and intestines of animals.

-Other enzymes guide the smaller, broken-down molecules through the intestinal wall into the bloodstream. Still other enzymes promote the formation of large, complex molecules from the small, simple ones to produce cellular constituents.

-Enzymes are also responsible for numerous other functions, which include the storage and release of energy, the course of reproduction, the processes of respiration, and vision.

Enzymes are catalysts of living beings, basically they hurry along chemical reactions and ensure that they happen, hope that helps :)

Gina is an ecologist, She is studying damage to tree bark in a forest. Initial research suggests that a new animal species that’s entered the area caused the damage. So, Gina draws a model to show her colleagues what’s happening. Further research suggests that the animal has carried a bacteria that has infected the trees, causing the damage. What are the limitations of Gina’s model?A:It doesn’t take all factors into account.
B:It isn’t drawn to scale.
C:It’s a mathematical model, not a conceptual model.
D:It needs to be a physical model, not a conceptual model

Answers

Answer:

The correct answer would be option A.

Explanation:

Gina's model lacks many important factors about the particular study of damage to tree bark in the forest. This model does not explain the number of animals entering a particular area of forest.

This model does not tell, how much damage has been done. It also fails to tell what type of damage the tree has faced. It does not explain what type of bacteria evolved or carried by the animal.

Thus, the correct answer would be option A.

1. One biotic factor that affects consumers in an ocean ecosystem is2. A. number of autotrophs
3. B. temperature variation
4. C. salt content
5. D. pH of water

Answers

Any change that might affect a link of the trophic web, will inevitably cause a cascade effect in the whole web. In the exposed example, the number of autotrophs is the biotic factor affecting consumers in an ocean ecosystem.

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In oceanicand terrestrial ecosystems, organisms build nets of varying levels of interaction known as the trophic webs.  

The trophic web is a relationship process between different organisms, through which occurs transference of energy. The ones placed at lower levels pass energy to the ones at the higher levels.

Organisms at eachlevel feed on the preceding one and become food for the next one.

As it is a web, all organisms are equilibrated until a change occurs. When the change affects any of the involved links, there can be a cascade effect on the web. A change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.

Also, when two or more species are competing for the same source of food, a change in any of the population sizes will affect the other ones.  

In the exposed example, we need to say which of the options are BIOTIC factors that affect consumers.

Among the options, there are temperature variations, salt content, and pH of water. All of them are significant factors that influence oceanic life. However, they are ABIOTIC factors.

The remaining option is the number of autotrophs. This option is a BIOTIC factor and is also the first link of many trophic chains.

Any change that might occur in this link -increasing or decreasing these populations-, will affect the whole system, beginning with their consumers.

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Related link: brainly.com/question/14381506?referrer=searchResults

                     brainly.com/question/16573161?referrer=searchResults

The right answer is A), number of autotrophs.