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Lyrx [107]
2 years ago
12

In traveling from a forest ecosystem to a grassland, one notes that the trees gradually give way to prairie grasses. The critica

l factor governing this shift is usually the (A) length of the growing season (B) annual mean temperature (C) availability of carbon dioxide (D) availability of water (E) availability of oxygen
Biology
1 answer:
Mademuasel [1]2 years ago
6 0

Answer: Availability of water

Explanation:

When a person is travelling from a forest ecosystem towards grassland ecosystem the number of trees gets reduced in number.

The trees are replaced by prairie grasses. This change is because of less water availability in the area having grass.

The amount of precipitation decides the type of vegetation found in that area.So the area having trees would be having more precipitation as compared to the area having prairie grass.

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Plant cells make their own food from the reaction between which two substances?
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What are the two substances?
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3 years ago
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The container below is separated into two sections by a semi-permeable membrane. Sugar molecules are too large to move across th
ELEN [110]

Answer:

b or c

Explanation:

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5 0
2 years ago
What three elements do all macromolecules share? Explain how the chemical properties of lipids, nucleic acids, proteins, and ami
Natasha2012 [34]

Answer

Macromolecules in human body

             The macromolecules found in human body are:

1. Carbohydrate,

2. Proteins

3. Lipids, and  

4. Nucleic acids.  

Elements they common share

             All these macromolecules have three elements in common which are:

1. Carbon

2. Hydrogen, and

3. Oxygen.  

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Difference in Chemical properties

                    Carbohydrate is composed of glucose monomers, which may have aldehyde functional group or ketone functional group. Protein is composed of monomers called amino acids. Each amino acid has carboxylic functional group, amino group, alkyl or aryl group and hydrogen atom. Lipid is composed of fatty acids and glycerol. While nucleic acid is composed of monomer called nucleotide. Each nucleotide is composed of pentose sugar, phosphate group and nitrogenous group. Due to the presence of different functional groups all these macromolecules have chemical properties different from each one


3 0
3 years ago
How are bacteria used in genetic engineering?
UkoKoshka [18]
Because bacteria replicates so quickly we use it for our own purposes
8 0
3 years ago
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Softa [21]

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2. The cytoskeleton provides support and shape to cell.

3. It help in transporting substances through cell.

4. It help in phagocytosis.

5. It help in cytoplasmic streaming that is movement of eukaryotic cytoplasm from one part of cell to another which help distribute nutrients and move the cell over the surface.

6. The study of the numerous interaction between microbes and host cell cytoskeleton is a very intense area of investigation on virulence mechanism.

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3 years ago
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