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Answer:
Fertilization
Explanation:
Egg and sperm are cells known as gametes produced by the GAMETOPHYTE of a sexually-reproducing organism via meiosis. Since egg and sperm cells are produced through meiotic division, their chromosomal number is reduced by half of the parental organism. Hence, sperms and eggs are haploid cells (n) produced by a diploid organism (2n).
Sperm is the male gamete while egg is the female gamete. These two haploid gametes fuse in a process called FERTILIZATION, to produce a diploid ZYGOTE that eventually grows into the diploid structure of the organism called SPOROPHYTE. This system of reproduction called ALTERNATION OF GENERATIONS is used by lower and higher plants.
Answer:
The number of cell divisions is too large to even estimate.
Explanation:
Think, for every cell to be formed, a parent cell needed to divide. on top of that, for every parent cell is the result of another parent cell. Think of how small a cell is, and think of how many cells are in the onion. The fact that onions are still onions is incredible, because a DNA mutation occurs at a very high rate during cell division. When DNA divides, it sometimes doesn't divide evenly, resulting in too much DNA is one cell, and not enough in another. Science has proven that the composition of DNA is what makes humans humans, trees trees, and onions onions. The fact that onions have withstood the millions upon millions of DNA mutations while still remaining a species, is astonishing.
<em>BRAINLIEST PLS!!!</em>
Answer: Capillaries connect the arterial system — which includes the blood vessels that carry blood away from your heart — to your venous system. Your venous system includes the blood vessels that carry blood back to your heart. The exchange of oxygen, nutrients, and waste between your blood and tissues also happens in your capillaries.
Answer:
mitochondria
Explanation:
In aerobic glycolysis: NADH is transferred into mitochondria via the mitochondrial shuttle, where it is oxidized to NAD in the respiratory chain, ultimately producing ATP.