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nekit [7.7K]
3 years ago
15

Excluding environmental factors, what determines the life expectancy for a species?

Biology
2 answers:
Bess [88]3 years ago
8 0
Biotic factors such as : 

-Reproduction (in-breeding etc) as well as successful reproduction
- Genes etc. hereditary disease 

ser-zykov [4K]3 years ago
3 0
Genetics, diet, environmental factors, the way the body of the animal handles its surroundings and biological necessities such as oxygen nutrients etc.
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Answer:

Explanation:

The upwelling of nutrients rich water to the top will increase species numbers and diversity.

When a particular area has the ability to sustain live by providing food and nutrients required for growth of organism the population will greatly increase this is because nutrients is the major source of competition among species for survival and every species goes in search for it and where there is abundance of it there will be a rise in population and diversity.

Varying type of species that are diverse in nature comes together, mating occurs more diverse species are formed.

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3 years ago
A Paramecium has an internal sucrose concentration of 0.040 M, a glucose concentration of 0.035 M, and a fructose concentration
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Answer:

<u>c. Sucrose and glucose</u>

Explanation:

The paramecium is a large, single-celled microbes, surrounded by a plasma membrane. Simple diffusion occurs in cells across plasma membranes, as a form of passive transport. In diffusion, solutes move from regions of high concentration to regions of low concentration across the plasma membrane.

Here, the internal environment has higher concentrations of sucrose and glucose, but lower concentrations of fructose, thus the solutes will move along their concentration gradient, to where the concentrations are lower. In order for the fructose molecules to move out of the cell, the molecules have to move against their concentration gradient - a process requiring energy known as active transport.  

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3 years ago
Which molecule is less soluble in water--a fat or a phospholipid? Why?
VladimirAG [237]
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Because of this difference in structure, phospholipid will dissolve better in water.
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