Why are ecological pyramids shaped as pyramids?

2 answers:

8 0

The ecological pyramids are shaped as pyramids themselves because the amount of energy decreases almost by ten percent, as we move from one trophic level to another. At the base, producers are placed. They synthesize their own food and are present in very large number. The organisms which consume them, are less in population, as compared to producers and have less energy as well, and this, is true for each next trophic level, and hece, the pyramid.

Oduvanchick [21]3 years ago

3 0

Answer should be A. It is an introduction of the trophic levels in a biological system. Vitality from the sun is exchanged through the biological community by going through different trophic levels. About 10% of the vitality is exchanged starting with one trophic level then onto the next, along these lines keeping an expansive number of trophic levels.

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Anni [7]

1) Data:
dominant allele- A
recessive allele- a

Heterozygotic: Aa (only carries the allele)
Homozygotic recessive: aa (expresses the disease)
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2)The first cross between Jim and his first wife originated a offspring with
cystic fibrosis. That offspring has the genotype aa and for that to happen both parents need to be a least carriers or express the disease. The exercise rules out the second case, which makes Jim a carrier.

3)Now between Jim and Martha:
From the previous step, we already found that jim is a carrier and the exercise also tells us that Martha is one too. So, their genotype is: Aa.
The cross: Aa x Aa
The probability:
1/4 aa = 25%
2/4 =Aa
1/4 - AA

the probability of having a baby with cystic fibrosis is 25%

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3 years ago

Rebekah is studying a molecule and trying to determine if it is DNA or RNA. Which kind of molecule is she studying? I NEED HELP

Alex

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The best and most correct answer among the choices provided by your question is the first choice or letter A.

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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