The correct answer for the question that is being presented above is this one: "B. extra chromosome 21." Karyotypes can be studied to determine an organism’s chromosomal makeup and to detect genetic defects. Down syndrome is a genetic disorder that is also called trisomy 21. Trisomy 21 look like in a karyotype with <span>extra chromosome 21</span>
No, but it is known that old/sick prey is much easier to catch. The evidence is that, say, there's no old and sick prey. The predator has to eat regardless, and whatever is there for it to take, it will. Think of a lion and a zebra, and the zebra is eating grass in the middle of a field. The lion is going to take that chance.
James Watson and Francis Crick are the two scientists to doscover the structure of DNA.
I think it's answer D: Rice. Rice is probably grown more than any other options for food.
Answer:
Metabolism
Metabolism, the sum of the chemical reactions that take place within each cell of a living organism and that provide energy for vital processes and for synthesizing new organic material.
Explanation:
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