Answer:
Option-A
Explanation:
Fertilization refers to the fusion of the male and female gamete to form the zygote.
When the fertilization occurs inside the organism through insemination then it is known as the internal fertilization and when it occurs outside the organism like observed in the amphibians when male and female gametes fuse in the water is known as external fertilization.
Both are different type of fertilization but share a similarity that is the formation of a single cell called the zygote which grows into the embryo by the mitotic division. The embryo later develops into the organism.
Thus, Option-A is correct.
Answer:
C. Production of primary food crops
Explanation:
Loss of habitat and overconsumption of water are big drawbacks of commercial agriculture. Synthetic fertilizers tend to be necessary with commercial agriculture, but they are heavy polluters and tend to destroy waterways, so they are a big drawback of commercial agriculture.
Answer:
c
Explanation:
C. We will never run out.
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Answer:
Dopamine
Explanation:
his is found in substantia nigra pars compacta. Most of the dopamine neurons of the substantia nigra project to the striatum, a part basal ganglia, forming a pathway called the nigrostriatal dopamine pathway that is important in the stimulation of movement.
It means that it's a living organism. As opposed to abiotic, which isn't a living organism.