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nexus9112 [7]
3 years ago
15

Why does net productivity diminish with increasing trophic levels??

Biology
1 answer:
geniusboy [140]3 years ago
4 0
Due to the bad trophic efficiency transfer, there is a loss in the consumption of most energy to cellular respiration at trophic levels. It also loses energy to heat, metabolism and other subsistence for biomass production. There is a higher energy loss when it is at higher trophic levels.
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Given the parents AABBCc × AabbCc, assume simple dominance for each trait and independent assortment. What proportion of the pro
Anit [1.1K]

Answer:

3/4

Explanation:

If we assume simple dominance and independent assortment for each trait, we can use Mendel's Law of Segregation to predict the phenotypic proportions in the offspring of the parental cross AABBCc x AabbCc.

<h3><u>Gene A</u></h3>

AA x Aa

  • F1 genotypes: 1/2 AA, 1/2 Aa
  • F1 phenotypes: all A
<h3 /><h3><u>Gene B</u></h3>

BB x bb

  • F1 genotypes: 1 Bb
  • F1 phenotypes: all B
<h3 /><h3><u>Gene C</u></h3>

Cc x Cc

  • F1 genotypes:  1/4 CC, 2/4 Cc, 1/4 cc
  • F1 phenotypes: 3/4 C, 1/4 cc

We want to know the proportion of progeny with all dominant phenotype (A_B_C_). Since the genes are independent, we can multiply the probabilities of each gene to obtain the overall probability of having a ABC progeny:

<h3>1 A_ x 1 B_ x 3/4 C_ = 3/4 A_B_C_</h3>
6 0
3 years ago
Mr. Duarte, now age 32, was diagnosed with diabetes mellitus when he was 14 years old. He takes insulin in the morning and the e
Alex777 [14]

Answer:  Typed 2 diabetes; because plasma glucose molecules are retained in the blood and  not able to enter     the cells.

Explanation:

He suffered from type 2 diabetes because,  the ketoacidosis was due to  breakdown of fats in the liver  due to low glucose in the cells, while the hypoglycemia was due to   retention of  plasma glucose in the blood instead of entering the cells.

3 0
3 years ago
.A researcher alters the DNA-binding domain of a glucocorticoid receptor to that of an estrogen receptor. How would the cells re
gizmo_the_mogwai [7]

Answer:

d) They would bind glucocorticoids, and initiate estrogen-dependent synthesis

Explanation:

Both Glucocorticoids and estrogens Hormones have important but distinct physiologic functions. These two hormones belongs to the two classes of steroid hormones. Both of these hormones binds to their specific receptors.

DNA binding domain is the domain that after activation by external factors such as hormones express the specific proteins by binding to specific region of the DNA.

As DNA binding domain of a glucocorticoid receptor is altered with DNA binding domain of estrogen receptor so it means binding site of the glucocorticoid hormone for glucocorticoid receptor remains the same and binds to glucocorticoids but on binding it activates the estrogen DNA binding domain which further binds to specific region in the DNA which initiates estrogen dependent synthesis.

7 0
3 years ago
Read 2 more answers
If there are 4 nitrogen bases and they are read in groups of three, how many codons are possible?
Alex Ar [27]

64 is the answer to this

4 0
3 years ago
PLEASE HELP ME TIME SENSITIVE!!!!!!!!
romanna [79]

Answer:

B, the lion population will more likely survive

Explanation:

There are more lions than cheetahs, the cheetahs will die out due to low reproduction

6 0
3 years ago
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