Answer:
B. The cell cannot be a human
Explanation:
Humans have 23 pairs of chromosomes, or 46 individual chromosomes. Mutations in humans usually cause there to be a single extra chromosome, or a single missing chromosome. A mutation would not cause there to be 64. So, A cannot be true. Prokaryotic cells usually have one chromosome, not 64, so C cannot be true. D cannot be assumed as you cannot tell if there is uncontrolled cell growth. Therefore, the answer would be B.
Answer: Keystone species
Explanation:
A keystone species is the species on which other species of the ecosystem depends on. The keystone species can be a predator or prey. It maintains the balance of the population of other species in an ecosystem.
1. False
Speciation is the formation of new species from a population of species. This process has three main stages: isolation, where the population is separated; adaptation, where the isolated population adapts to the new environment; and reproductive isolation, where the two populations can no longer breed to produce fertile offspring.
2. Behavioral isolation
This occurs when there is a difference in mating rituals or other behaviors which prevent interbreeding.
Answer:
The Independent or Manipulated Variable
Explanation:
The Independent or Manipulated Variable is the variable that is changed by the researcher. The Dependent or Responding Variable is the result of that change.
