Hormones are chemical substances that help to regulate processes in the body. Hormones are secreted by glands and travel to their target organs in the bloodstream. Hormones can be used to control human fertility.
Answer:
Prophase
The replicated chromosomes thicken and become visible as separate chromosomes during prophase stage of mitosis. :)
Answer:
individuals do not evolve, as each individual's genes do not change, and evolution is defined as the change in allele frequencies over time.
Explanation:
<span>A soil horizon is a layer parallel to the soil surface</span><span>, whose physical characteristics differ from the layers above and beneath</span>
