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Alenkinab [10]
3 years ago
6

Which latitude lines does photoperiodism have the greatest effect? Why?

Biology
1 answer:
Brrunno [24]3 years ago
6 0

Answer: A short-day plant will not flower if light is turned on for a few minutes in the middle of the night and a long-day plant can flower if exposed to more red-light in the middle of the night. Cryptochromes are another type of photoreceptor that is important in photoperiodism. Cryptochromes absorb blue light and UV-A.

Explanation:

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Natural and artificial selection depend on genetic and phenotypic variation. In natural selection, the selective pressure comes
otez555 [7]
<h2>B) option is correct </h2>

Explanation:

Natural selection is a selection pressure which operates in a population and allow the best fitted genotype to survive in changing environmental conditions and eliminate the other genotype which are not fit

In artificial selection, breeders select superior breed for the breeding purpose so that this type of selection favors the superior genotype and eliminates inferior genotype, thus leading to genetic drift

Stabilizing selection is a type of natural selection in which intermediate genotype is favored but extreme genotypes (inferior and superior) are eliminated

In the given example of pigmentation in pigeons, breeding is selectively done with intermediate pigmentation hence intermediate genotypes will be favored

5 0
3 years ago
Will mark Brainliest. When the environment changes, nature selects favorable _______. Over time, these ___________ in a populati
vladimir1956 [14]

Answer:

first line adaption

second line build-up

4 0
3 years ago
Explain how humans are able to produce gametes that are haploid.
Hunter-Best [27]

Answer:

Germ cells are capable of mitosis to perpetuate the cell line and meiosis to produce gametes. ... In animals, sexually reproducing adults form haploid gametes from diploid germ cells. Fusion of the gametes gives rise to a fertilized egg cell, or zygote.

Explanation:

8 0
3 years ago
On a cold winter morning, a person waiting for the bus starts shivering. The muscles used in shivering produce extra heat that h
expeople1 [14]

the answer is c because the body is reacting to the new weather which is the cold

5 0
4 years ago
Three of the same species of plant are each grown under a different colored light for the same amount of time. Plant A is grown
professor190 [17]

Answer:

A C B

Explanation:

Chlorophyll pigments absorb most of the light in the blue and red regions. Blue-violet region marks the peak absorption by chlorophyll a while chlorophyll b shows peak absorption in red blue light. Green colored light is not absorbed by chlorophyll a and b. Light absorption by chlorophyll is essential for the light-dependent phase of photosynthesis. Therefore the plant A grown under blue light will show maximum growth and plant B kept under green light would show minimum growth.

6 0
3 years ago
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