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3 years ago

Is it possible for an inverted energy pyramid to exist explain why or why not?

1 answer:

6 0

No i don't think so; this is because in a particular energy pyramid, no additional energy enters the system, and energy is lost to the environment at energy level. An energy pyramid is the pyramid that shows the availability of energy that connects the consumers with the decomposers shows the energy transfer between trophic levels. It shows that less and less food and energy is available as you go from the base to the top of the pyramid.

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A prospective groom, who is healthy, has a sister with cystic fibrosis (CF), an autosomal recessive disease. Their parents are n

son4ous [18]

Answer:

Explanation:

From the given information:

Since the parent are normal; Let assume that their trait is Pp

The affected sister will be recessive in nature, so the trait will be pp

Now, the husband who is the groom will be a carrier with a probability of 2/3 since her sister is affected.

Also, the wife will be carrying a heterozygous trait since she is normal as well.

However, using Hardy-Weinberg assumption:

$q^2 = \dfrac{1}{2500}= 0.0004$

$q = \sqrt{0.0004}$

q = 0.02

Recall that:

$p+q =1 \\ p = 1 - q \\p = 1 - 0.02 \\p = 0.98\\$

Thus, $p^2 = (0.98)^2$

$p^2 = 0.9604$

$2pq = 2 \times 0.98 \times 0.022$

2pq = 0.0392

Finally, the required probability that there will be an affected offspring amongst the family is:

$= \dfrac{1}{4} \times \dfrac{2}{3} \times 0.0392$

$= \dfrac{1}{153}$

3 0

2 years ago

g Blood flows through a coronary artery that is partially blocked by deposits along the artery wall. Through which part of the a

umka2103 [35]

Answer: The question is incomplete and the options are not given but here are the options gotten from another websites.

A. Narrow part.

B. Wide part

C. The flow rate are the same in both part.

The correct option is C.

The flow rate are the same in both part.

Explanation:

The flow rate are the same in both because when there is partial blockage at the artery wall, the blood flow speed will reduce or stop, therefore the blockage will be a barrier or hindrance to free blood flow and therefore, both the narrow part and wide part will receive the same level of blood flow because of the blockage and this blockage result in restricted blood flow which in one way or the other hinder oxygen supply to the heart. The blockage deposits can cause a thickened artery wall and when blood flow is restricted it causes chest pain and if it stop it can cause heart attack. Blockage deposits can be as a result of artery wall damage.

7 0

2 years ago

A scientist finds a gene in the DNA of a wild-growing plant that could increase the amount of lycopene, a cancer-fighting agent,

Kryger [21]

Answer:

to prevent other buds from growing, allowing the plant to grow taller ... Which of the following is an example of genetic engineering that occurred ... In creating golden rice, Potrykus and Beyer needed to insert genes that would make the ... During which stage of genetic engineering does the scientist add DNA pieces

Explanation:

8 0

2 years ago

Read 2 more answers

Select all that apply. Besides annelids, segmentation is also seen in _____. arthropods mollusks flatworms vertebrates

Alik [6]

I want to say arthropods and flatworms. I am pretty sure that the others you cannot see the segmentation

6 0

3 years ago

Read 2 more answers

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aev [14]