Tadpoles has gills ...and after metamorphosis frog gets lungs and an additional skin / cutaneous respiration !
so answer is A
Answer:
at the beginning of cell division, the chromosome consist of two identical sister chromatide (or daughter cells) of the Interphase.
Explanation:
The right answer for the question that is being asked and shown above is that: "<span>The reefs are an essential part of the ocean’s ecosystem, and when people build structures on top of them, they are easily damaged because they are so fragile."</span>
Answer:
There are several other words:
Explanation:
lipid, sugar, protein, carbohydrate, etc. You can choose whichever one you want, it doesn't matter.
Answer: Mendel's research lead to several conclusions about the traits and its passing through generations. The two of the conclusion are different forms of a gene account for variation in the inherited traits and some alleles are dominant over others for a given trait.
Explanation
George Mendel was a famous biologist. His research was on genes and traits. His experiment shows how genes gets transferred from parents to offspring. Also he stated about the behavior and dominance and recessive nature of that alleles.
He also gives the possibility of dominance of a trait over other trait. The different forms of gene are responsible for various types of inherited traits in an organism.
hope it helps
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