Answer:
because There were approximately 37.6 million people across ... marking a 30% decline in new HIV infections since 2010.
A hypothetical collection of all the possible alleles in a population gene pool . Thus correct option (C).
A gene pool is the collection of all the genes (including alleles) found in a population or species that is capable of reproduction. A big gene pool has a wide range of genetic diversity and is more resilient to environmental stresses.
Primary gene pool, GP-1 is another name for it. The crop species itself, as well as its cultivated races and any wild or weedy spontaneous races are all included in the main gene pool, which is akin to a biological species in and of itself.
All the genes present in a population make up the gene pool. Any population might be included here, including frogs in a pond, trees in a forest, or residents of a town.
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What is a gene pool?
- a hypothetical collection of all the genes that occur in a habitat
- a puddle of water that contains gametes in it
- a hypothetical collection of all the possible alleles in a population
- a collection of all the genes that occur in an individual
deoxyribonucleic acid, is defined as a nucleic acid that contains the genetic code.
Answer:
D. The threat of predators to eat eggs
Explanation:
The internal gestation followed by live birth was an adaptation developed by the mammals on land, and by some fish in the water, like the sharks. The mammals have been the most marking ones in this adaptation though. They too were producing eggs initially, but because they were living in an environment where there were numerous animals that preyed upon them, as well as their eggs, they had to be innovative. They developed internal gestation, where the embryo was developing inside the body of the female, and then it was born alive. This was providing extra safety, as the embryo was always with the mother, instead of being left alone and not guarded, thus an easy meal for the predators. The two types of internal gestation that the mammals developed are the placental and marsupial types, with the placental turning out to be more successful over time.
The vas deferens transport sperm from the testicle to the urethra.
