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2 years ago

Why an energy pyramid in any ecosystem typically is limited to four or five levels only?

1 answer:

7 0

The reason an energy pyramid is limited to four to five is because as the pyramid gets smaller at the top more and more energy is lost. Primary producers get 100% of the energy, Primary Consumers get 10% . Secondary 1% Tertiary .1% and Apex get .01% so after that point it has little to no energy and the Apex is the highest on the food chain.

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Which proccess in respiration happens first

Ad libitum [116K]

Answer:

glycolysis that is the first step in cellular respiration

Explanation:

According to research :

Glycolysis is the metabolic pathway that converts glucose C₆H₁₂O₆, into pyruvate, CH₃COCOO⁻, and a hydrogen ion, H⁺. The free energy released in this process is used to form the high-energy molecules ATP and NADH. Glycolysis is a sequence of ten enzyme-catalyzed reactions. Wikipedia

8 0

3 years ago

Read 2 more answers

Describe and draw the structure of an ATP module.

Sergio039 [100]

so ATP is adenine triphosphate

it has 3 phosphate groups, hence the 'tri'

it has nitrogen containing carbon rings

and it also had a carbon ring containing OH groups

i can't draw it on here but if you google the structure hopefully my explanation will make more sense

6 0

2 years ago

Abductors enable efficient bipedal motion by contracting parts of the gluteals that attach to the ilium and allow humans to step

miss Akunina [59]

Answer:

a. True

Explanation:

Since , abductions, particularly the minimus and gluteus medius , are active on the side of the leg which is in contact with the ground . This is to avoid the tendency of gravity to cause the downward motion of the hip on the opposite side . In addition, the lateral muscle and paraspinal muscles of the trunk are active on the side of the swinging leg to avoid the downward motion of iliac crest on side .

5 0

3 years ago

You are an almond grower and want to determine whether almond size (measured as shelled almond weight) is a heritable trait. A s

inn [45]

Answer: 1. S = 0.77

2. R = 0.14

Explanation:

1. Selection differential is the difference between the population mean and the average of the selected parents. Its symbol is S.

S = mean of selected parents - population mean

S = 6.48 - 5.71

S = 0.77

2. Response to Selection is how much gain you make when crossing over selected parents. Its symbol is R.

R = mean of offspring of selected parents - population mean

R = 5.85 - 5.71

R = 0.14

3. Heritability is, basically, a statistical variable that shows how much the variation in a trait is due to genetic factors. Its symbol is h².

To calculate it, use Breeder's Equation:

R = h²S

$h^{2}=\frac{R}{S}$

$h^{2}=\frac{0.14}{0.77}$

h² = 0.18

4. You would expect the production to be strongly influenced by environment, because heritability lies between 0 and 1. Low heritability means there is low level of resemblance between offspring and parents. As this program heritability is low, the resemblance is small, which means the characteristics are influenced mostly by the enviroment.

7 0

3 years ago

What is the difference between a habitat and an ecosystem?

Mariulka [41]

Hope this helps !! :) good luck

3 0

3 years ago

Read 2 more answers