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3 years ago

Explain how a nutrient can be a limiting factor in an ecosystem.

Biology

2 answers:

dexar [7]3 years ago

7 0

Answer:

When one of these nutrients is missing or in short supply, it is considered a limiting nutrient. Phosphorous and nitrogen are usually limiting nutrients because plants require large amounts of them on a daily basis. A soil nutrient in limited supply results in stunted growth or a lower number of plants in an ecosystem.

Explanation:

Hope this helps u 

Crown me as brainliest:)

11111nata11111 [884]3 years ago

6 0

Answer: Since nutrients are needed to build life tissues and carry out essential life functions, a limiting nutrient (scarce nutrient) will limit organisms' growth in an ecosystem.

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Metabolic pathways can be controlled through the availability of enzymes and modulation of their catalytic activities. Enzyme av

postnew [5]

Answer: a) substrate and cofactors b) covalent modification

Explanation:

Metabolic pathways involve all the chemical processes takes place in the enviornment or in an organisms.The metabolic pathways are controlled through the catalytic activities of enzymes.

The availability of enzyme is regulated by substrate and cofactors present in enzyme and enzyme activity is commonly regulated via covalent modification.

Enzymes are highly selective in nature and bind to a specific substarte only. The active site in enzyme binds with the substrate to form enzyme substrate complex. Coactors assist the enzyme activity, without cofactor enzyme can not perform its activity.

Hence enzyme availibility is regulated by substrate and cofactors regulates.

Covalent modifications regulates activity of enzyme as it involves addition and removal of chemical group to synthesis required protein. It can change the chemical properties of the site by targeting one or multiple amino acid.

Thus the correct answer is a) substrate and cofactors b) covalent modification

8 0

4 years ago

What are decomposers?

svp [43]

B is the answer and this is proven by scientific research.

you can go out side a thro an orange peel in a garden and it will degrade and become fertilizer.

4 0

4 years ago

Read 2 more answers

Identify and describe the features found on the ocean basin floor

Tom [10]

The significant figures include the mountainous ocean ridges, deep-sea trenches, and jagged, linear fracture zones. Other significant features of the ocean floor include aseismic ridges, abyssal hills, and seamounts and guyots. The basins also contain a variable amount of sedimentary fill that is thinnest on the ocean ridges and usually thickest near the continental margins.

6 0

3 years ago

Explain why the steroid hormone estradiol (MW 272) readily crosses membranes by simple diffusion but the much smaller H requires

bazaltina [42]

Answer:

Estradiol has a higher partition coefficient than H+ ions

Explanation

Estradiol is a non-polar and hydrophobic molecule that has a higher partition coefficient than H+ ions, it means that the cell membrane is more permeable to this molecule because it can dissolve in and diffuse within the hydrophobic phase of the membrane. The movement of polar charged molecules (even small H+ ions) requires the input of energy to be able to dissolve within the lipid bilayer. In consequence, the movement of H+ ions requires proteins capable of transporting these protons through the membrane.

4 0

3 years ago

Different plant species require different amounts of direct sunlight in order to flower. A student designed an experiment to det

Gnoma [55]

Answer:

Independent variable: LENGTH OF EXPOSURE TO DIRECT SUNLIGHT

Dependent variable: PRODUCTION OF FLOWERS

Control group: THE GROUP OF PLANT THAT WASN'T EXPOSED TO SUNLIGHT i.e. 0 hours

Experimental group: THE GROUP OF PLANTS THAT WERE EXPOSED TO SUNLIGHT

Constant: THE SAME PLANT SPECIES

Explanation:

Independent variable is the variable that the experimenter changes or manipulates in an experiment. In this experiment, the experimenter exposes the specific plant species to sunlight at different length of time, hence, the LENGTH OF EXPOSURE TO DIRECT SUNLIGHT is the independent variable.

Dependent variable is the variable which is measured in an experiment. In this experiment, the measured/dependent variable is the PRODUCTION RATE OF FLOWERS by the plant species.

Control group is the group in an experiment that does not receive the variable being tested. In this experience, the control group is THE GROUP OF PLANT THAT WASN'T EXPOSED TO SUNLIGHT i.e. 0 hours

Experimental group is the group of am experiment that is exposed to the experimental treatment (sunlight). In this case, the experimental group is THE GROUP OF PLANTS THAT WERE EXPOSED TO SUNLIGHT.

Constants are variables of an experiment that must be kept unchanged for all groups throughout the experiment in order not to affect the experiment's outcome. In this experiment, the constant is THE SAME PLANT SPECIES used,

3 0

3 years ago