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3 years ago

Question #14: In which scenario below would natural selection be most successful?

Biology

2 answers:

CaHeK987 [17]3 years ago

5 0

Answer:

D) a population of salmon with different skin colors that attract mates

Daniel [21]3 years ago

3 0

Answer:

the answer is d

........

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Briefly explain the causes and effects of acid precipitation.

Ainat [17]

latic acids. cause by milk
chittrus acids. cause by lemon juice

5 0

3 years ago

The __________ nervous system transmits messages about sight, sound, smell, taste, and tactile information.

Verdich [7]

The answer is THE SOMATIC NERVOUS SYSTEM.
The somatic nervous system is part of the peripheral nervous system. It is major function is voluntary movement of the muscles and organs and reflex movement. During the processing of voluntary movement, sensory neurons which transmit information about sight, smell, sound, taste and tactile information carry impulses to the brain and the spinal cord.

3 0

3 years ago

In a population of plants, the allele for long stems (S) is completely dominant over the allele for short stems (s). If 35% of t

Sergio [31]

Answer:

The correct answer would be 48 percent.

It can be solved by using the Hardy-Weinberg equation.

p² + 2pq+ q² = 1

p + q = 1

where, p² represents homozygous dominant's frequency that is, SS in this case,

q² represents homozygous recessive's frequency that is, ss in this case,

2pq represents heterozygous dominant's frequency that is, Ss in this case.

p represents dominant allele's frequency and q represents the recessive allele's frequency.

Now, the percentage of homozygous recessive or short stems is 35%. Therefore, the frequency of homozygous recessive would be 0.35.

Thus, the value of q² = 0.35

So, q = $\sqrt{0.35}$ = 0.59 which is approximately equals to 0.6.

As p + q = 1 so, q = 1 - 0.6 = 0.4

The frequency of heterozygous (Ss) = 2pq = 2(0.6)(0.4) = 0.48

Hence, the frequency of heterozygous would be 48 percent.

8 0

3 years ago

1. Perubahan dapat terjadi karena adanya interaksi manusia dengan lingkungan.

Lady bird [3.3K]

Answer:

Dampak negatif manusia terhadap lingkungan adalah:

Kelebihan penduduk, polusi, pembakaran bahan bakar fosil, dan penggundulan hutan. Perubahan seperti ini telah memicu perubahan iklim, erosi tanah, kualitas udara yang buruk, dan air yang tidak dapat diminum.

Dampak positif manusia terhadap lingkungan adalah:

Melindungi spesies yang terancam punah dan membersihkan danau dan laut memiliki efek positif terhadap lingkungan. Di rumah, Anda dapat membantu planet ini dengan mendaur ulang limbah dan menanam tanaman atau sayuran.

6 0

2 years ago

You breed a plant that has purple flowers with a plant that has orange flowers and the resulting offspring has purple and orange

gayaneshka [121]

Answer:

Incomplete dominance

Explanation:

Incomplete dominance is the expression of phenotype of two paired alleles (i.e dominant and recessive allele) all together.

Usually when two alleles get paired, the characteristics of the dominant allele is expressed while the characteristics associated with recessive alleles are expressed only when the two recessive allele get paired.

Here in this case the characteristics of both type of allele are expressed i.e. both orange and purple strips appear in the offspring. Hence, this case shows the incomplete dominance.

5 0

3 years ago