The answer is True. Convection currents in Earth's mantle are cause of tectonic plate movement.
Answer:
The correct answer is option C.
Explanation:
Sexual selection is a type of special natural selection. It affects the ability to get or breed with a mate and it could be by any means. It changes phenotypically in the different sexes of the same species for example peacock.
It is might be sometime harmful to the species too. Females produce eggs or a number of pregnancy and it affects the reproductive success where is in males it is determined by the mating numbers.
Thus, the correct answer is option C.
Mirror neurons are activated by performing an action or seeing another perform the action. They were found by chance during experiments with monkeys, when researchers discovered that the same neurons that fired while performing a behavior also fired while observing the behavior. Mirror neurons have been linked to motor skill development, imitating another's behavior, feeling empathy for another, understanding or comprehending social behavior, and language development. Answer for E2020
<u>Answer:</u>
Option (3)
The arms mostly contains old blue and blue-white stars
<u>Explanation:</u>
Spiral arms are the regions in stars extending from the middle of spiral galaxies and the barred spiral. Those long, thin areas look like a spiral and therefore give their name to spiral galaxies.
Spiral arms, though, include many young, blue stars, that render their arms so bright (due to the high mass density and the fast stellar forming rates).
Answer:
Yes, the protein is found on the surface of the red blood cell which is represented by a positive or negative sign.
It is termed as Rh factor.
Rh factor refers to the class of antigen or protein found on the red blood cell.
If the protein is present, then the person is said to be Rh positive and when the protein is absent the person is said to be Rh negative.
