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Mekhanik [1.2K]
3 years ago
9

Fish, snakes, and birds are all types of A. spiracles B. vertebrates C. invertebrates D. insects

Biology
1 answer:
neonofarm [45]3 years ago
6 0
Vertebrates. they are all chordates, which mean they have a notochord somewhere in their body.

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Amhibians without limbs​
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Whats the question?

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Need help! The horizontal and vertical lines on a graph. The x is horizontal and the y is vertical.
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X is horizantal and Y is vertical

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What are the conditions that lead to a "beer gut" due to the excess consumption of alcohol? NADH produced from the metabolism of
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Answer: Excess ethanol metabolism leads to an accumulation of NADH that inhibits fatty acid metabolism.

Explanation:

Fatty acid metabolism is often activated by limited or absence of NADH, however ethanol (the main constituent of most alcoholic drinks) on metabolism yields several molecules of NADH which rather stimulates belly/abdominal fat production often referred to as "beer gut".

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3 years ago
Select the correct statement about chemical energy, a term used by biologists to refer to potential energy available for release
vekshin1

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A photosynthetic cell within a plant leaf produces chemical energy, stored within glucose molecules.

Explanation:

The energy captured from sunlight by Photosystems in chlorophyll is used to split a water molecule and reduce carbon dioxide to carbohydrates. This energy from sunlight is therefore stored in the chemical bonds of the glucose molecules. It is thereafter harnessed during cellular respiration when the chemical bonds of glucose are broken and the energy transferred to make ATP molecules.  

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3 years ago
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You discover a population of mustard plants and find it to be at Hardy–Weinberg equilibrium with respect to the R locus. Suppose
natulia [17]

Answer:

The fraction of heterozygous individuals in the population is 32/100 that equals 0.32 which is the genotipic proportion for these endividuals.

Explanation:

According to Hardy-Weinberg, the allelic frequencies in a locus are represented as p and q, referring to the alleles. The genotypic frequencies after one generation are p² (Homozygous for allele p), 2pq (Heterozygous), q² (Homozygous for the allele q). Populations in H-W equilibrium will get the same allelic frequencies generation after generation. The sum of these allelic frequencies equals 1, this is p + q = 1.

In the exposed example, the r-6 allelic frequency is 0,2. This means that if r-6=0.2, then the other allele frequency (R) is=0.8, and the sum of both the allelic frequencies equals one. This is:

p + q = 1

r-6 + R = 1  

0.2 + 0.8 = 1

Then, the genotypic proportion for the homozygous individuals RR is 0.8 ² = 0.64

The genotypic proportion for the homozygous individuals r-6r-6 is 0.2² = 0.04

And the genotypic proportion for heterozygous individuals Rr-6 is 2xRxr-6 = 2 x 0.8 x 0.2 = 0.32

5 0
4 years ago
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