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Firdavs [7]
3 years ago
6

Why do fish have fins

Biology
2 answers:
nlexa [21]3 years ago
8 0
Because it helps them swim, if the don't have fins then they won't be able to move around in the water duh.
dolphi86 [110]3 years ago
6 0
To help them swim and move around in water.
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What are some benefits from high biodiversity in natural habitats?
kkurt [141]
Greater ability to recover after natural disasters and greater variety of food sources.
3 0
2 years ago
What polysaccharide helps provide the strength to insect exoskeletons?
vfiekz [6]
Your answer is correct. Chitin provide the strength to insect exoskeletons. Cellulose is the strength for plant. Starch and glycogen are energy sources for life.
6 0
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
Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts,
FromTheMoon [43]

Answer;

The second cell would not be able to produce as much food because it could not capture sunlight.


Explanation;

The first cell has multiple chloroplasts, and the second cell has very few which means the cell with more chloroplasts would make more food.

Chloroplast is an organelle is the cell where the process of photosynthesis (process in which plants make their own food) takes place.

A cell with multiple chloroplasts would make more food through photosynthesis compared to a cell with few chloroplasts.

7 0
3 years ago
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What are some reasons why common names are insufficient for naming animals? answer in a short paragraph form and include at leas
lana66690 [7]

Answer:

Scientific names of animals use both the genus and species name, which is much more specific than common names, and gives more information.

For example, using the name cat just tells us that the animal is a cat

however, the scientific name felis catus, tells us that the species is catus and the genus is felis

Explanation:

4 0
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