Answer:
Cooperation
Explanation:
Cooperation is a type of behavior evolved by members a species living together in a close-knit society, whereby they all work and act together to ensure the common good of all members. This behavior ensures the survival of the members of the species in any environment.
Cooperation among small birds ensures protection of the members of the group against predators. Also, pack hunting is a form of cooperation among animals of a species to ensure nutrition is provided for all in the group. Se animals also form defensive circles as a form of cooperation to ensure protection of members, especially the weak and young members, against predators.
Both men and women have sex chromosomes. Men usually have one X and one Y chromosome, while women have two X's.
When an egg or sperm is made, it only gets one of the sex chromosomes from the parent. This means that women can only make eggs with an X chromosome. But men can make either X or Y sperm.
During fertilization, the sperm cells race toward the mother-to-be's egg cell. If a sperm with a Y beats all others, then the fetus will be XY. The pregnancy will result in a boy.
However, if a sperm with an X wins the race to the egg, then the fetus will be XX. The parents will have a baby girl.
Nearly everyone's chances are around 50% for having a boy and 50% for having a girl. And yet, we all know families that are all boys or all girls.
Answer:I think it is oxygen
Explanation:
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Answer:
The Movement is called Migration.
Explanation:
Migration is an important component of Population growth. Migration is the movement of individual organisms into, or out of, a population.Migration affects population growth rate. Migration can be of two types- Immigration and Emigration. Immigration can be described as the movement of individual into a population from other areas. This increases the size of a population and helps in growth. Emigration can be described as the movement of individual out of population.
