Answer is D:) Just took the test
The number of neutrons
and the mass number
Answer: Every stable population has one or more factors that limit its growth. A limiting factor determines the carrying capacity for a species. A limiting factor can be any biotic or abiotic factor: nutrient, space, and water availability are examples. The size of a population is tied to its limiting factor. The environment, what food is there and what predators live there. How much food they get and if they are decreasing from weather, predators etc.
Explanation:
The answer is; C
Recombination of genes is important in the variation of the organisms because it allows for novel allelic combinations during fertilization of gametes. Natural selection works best in a population with high genotypic and phenotypic variations. This increases the chances of survival of the population in case of climate change or calamities that cause a bottleneck effect.
Sympathetic nervous system parasympathetic nervous system
