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11Alexandr11 [23.1K]
3 years ago
11

Why does sexual reproduction increase the genetic variation in a species?

Biology
2 answers:
Jet001 [13]3 years ago
5 0
Correct answer

<span>A. A fertilized egg has a mixture of alleles from the two parents.</span>
SashulF [63]3 years ago
4 0

Answer: A. A fertilized egg has a mixture of alleles from the two parents.

Sexual reproduction is a method of production of new organism by the fusion of gametes formed by two distinct parents. A single sperm fuses with the egg. The genes of the two parents combines in this process. During the gamete formation a pair of allele gets segregated from each parent and a single copy of allele is obtained from each parent. Therefore, a fertilized egg contains a mixture of alleles obtained from both parents this is the result of genetic variations in a species. The offspring is not exactly identical to either of the parents but exhibit genetic variations.

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Answer:

Dry Mouth (Xerostomia)

Fungal Infection.

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2 years ago
Explain why there is a limited number of organisms in a food chain
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There are different trophic levels at each stage. Trophic levels determine the amount of energy at each stage of the food chain. For example, the energy is 100% at the producer (plant), so it's the 1st trophic level, and so on. Energy amounts decrease as you go up a food chain, and you rarely find more than 5 animals in one because there is not enough energy left for the 6th consumer
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3 years ago
Define the following terms. Give an example of an organism that is described by each term. a. benthic b. pelagic c. sessile d. m
taurus [48]

Answer:

(A) Benthic- Benthic refers to the lowest or the bottom zone of the water body such as seas, and oceans. The organisms existing under such extreme pressure conditions are commonly known as benthic organisms. For example, corals and bivalves.

(B) Pelagic- Pelagic refers to the upper top portion of a water body, covering the open sea areas. The organisms existing in this region include dolphins and sharks.

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6 0
3 years ago
0. Summarize the effects of progesterone and estrogen
tino4ka555 [31]

Answer:

Estrogen and progesterone are both involved in preparing the endometrium for embryo implantation. Estrogen helps to ensure conception by increasing the amount of secretory glands in the uterus. Estrogen also increases blood supply to the endometrium.

Progesterone is crucial for embryo implantation and maintenance of pregnancy. Progesterone also enlarges secretory glands that produce carbohydrates, proteins and mucin that are required for embryo nourishment before implantation. Progesterone stabilizes endometrial muscles to prevent them from contracting during pregnancy.

Explanation:

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  • Estrogen is secreted during the follicular phase of the menstrual cycle that promotes the growth and maturation of follicles in the ovary.
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3 years ago
What are the adaptations of bottle-nosed dolphins that allows them to thrive in the marine biome?.
3241004551 [841]

Answer:

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