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d1i1m1o1n [39]
4 years ago
5

Which of the following environmental factors belongs to biotic factors? 1. Wind 2. Salinity 3. Soil moisture 4. Microorganism​​

Biology
1 answer:
uranmaximum [27]4 years ago
6 0

Answer:

4. Microorganism

Explanation:

Wind, Salinity, Soil moisture are abiotic factors, non living things.

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If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next genera
Kisachek [45]
Q = recessive allele frequency = 0.3, and thus in H-W equilibrium there are ONLY two alleles, q (recessive) and
p (dominant). Therefore all of the p and q present for this gene in a population must account for 100% of this gene's alleles. And 100% = 1.00.
So p, the dominant allele frequency, must be equal to 1 - q --> p = 1 - q
p = 1 - 0.3 = 0.7.
Since heterozygotes are a combination of the p and q, we must again look at the frequencies of each genotype: p + q = 1, then (p+q)^2 = 1^2
So multiplying out (p+q)(p+q) = 1, we get: p^2+2pq+q^2 = 1 (all genotypes), where p^2 = frequency of homozygous dominant individuals, 2pq = frequency of heterozygous individuals, and q^2 = frequency of homozygous recessive individuals.
Therefore if the population is in H-W equilibrium, then the expected frequency of heterozygous individuals = 2pq = 2(0.7)(0.3)
2pq = 2(0.21) = 0.42, or 42% of the population.
Hope that helps you to understand how to solve population genetics problems!
7 0
4 years ago
What type of membrane lines the compartments of the ventral body cavity and produces a lubricant that allows organs to move agai
JulijaS [17]

Answer:

Answer is Serous membrane.

Explanation:

The serous membrane is known to be or can be described as a thin membrane usually consisting of two layers which are separated by a space filled with serous fluid, which is derived from the serum.

The serous membrane are lying the cavity of some certain internal organs of the body, such as the lung and the heart. The fluid produced by the serous membrane,[ serous fluid], serves as lubricant to reduce friction occurring from muscle movement.

Examples of serous membrane are peritoneum and pericardium.

7 0
3 years ago
What will a hypothesis become if supported by repeated expermentation
Dovator [93]

Answer:

Answer: The correct answer is- Theory.

Hypothesis can be described as an assumption or proposition, which is made on the basis of certain evidences without knowing the real truth about it. It is tested further for investigation about the proposed explanation with the help of repeated experiments (using certain protocols).

When it becomes supported by repeated experimentation, it is converted into theory.

Thus, theory is the right answer.

7 0
3 years ago
Which level of organization does the complete skeleton of a mouse belong to?
jok3333 [9.3K]
The answer is D) the organ system.
7 0
3 years ago
Read 2 more answers
Please help, anything will do! thank you! I have provided eveyrhtign and did the lab (procedures).
Juli2301 [7.4K]
The whale and the bat are the most different because of the size of the hands or fins.

And the human and the cat are the most similar because they are almost identical to each other from the bottom up


You can conclude that the one that were alike were related in some type of way
8 0
3 years ago
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