Answer:
Placenta
Explanation:
Placenta is the connection between the mother and developing foetus. It secretes hCG hormone. The developing foetus gets nourishment from the mother's body by placenta.
It is a temporary endocrine gland and cut after the child birth. This supplies blood, oxygen to the embryo by the process of diffusion. Placenta also acts as the excretory organ for the developing foetus.
Placenta are formed from the finger like projection of blastocyst called trophoblast. The one trophoblast forms placenta while others helps in holing the foetus in the mother's womb.
Answer:
They would react the same as with the vinegar and hydrogen peroxide at room temperature.
Explanation:
In this experiment catalase acts as the catalyzing enzyme which decomposes hydrogen peroxide. All living things (be it frozen liver or a potato) consists of catalase. Such enzymes decompose one substance into another. Catalase enzyme helps in breaking down hydrogen peroxide into water and oxygen and also speed up the process of decomposition by providing and maintaining favorable situation. Therefore, irrespective of whether this catalase is found in the frozen liver or potato, they would react in the similar manner.
Hence, option A is correct
I believe the correct answer is that The genetic variation between humans and orangutans is the greatest.
We cannot say that there is no genetic variation at all, because there obviously is - we are not the same as the other three apes, even though we have a common ancestor. Also, we cannot say that we are completely the same, because there are obvious differences. And finally, we didn't originate from those three animals, but rather all of us come from the same organism.
Chloroplasts help plants make their own food by converting light energy.