Nervous, circulatory, integumentary, muscular, skeletal systems
Dominant character:are always expressed when the connected allele is dominant,even if only one copy of the dominant trait exits.
Recessive character:are expressed only if both the connected allele are recessive.
Answer:
Please read below
Explanation:
The worlds population won't stop growing till something bad in the wrold happens like a war or the fertility rates drop to an all time low.For example if a lot of people are out at a war the frertility rates are going to be low and the death rates will be high.Therefore the population will stop growing and will decrease or stay the same.
Answer: a, low birth to death ratio
Explanation: immigration adds more population, and when resources are abundant, people do better. a high birth to death ratio would mean more people are being made.