Organism in an eniornment can compte for food
D. Things that are kept constant.
Controls are used in an experiment where some variable is being changed. By only changing one thing and keeping the others constant they can make sure that any change in the results is caused by the variable and not the constant, since the constant didn’t change.
Answer:
A drought is a duration of drier-than-normal conditions that outcomes in water-related troubles. When rainfall is much less than everyday for numerous weeks, months, or years, the flow of streams and rivers declines, water ranges in lakes and reservoirs fall, and the intensity to water in wells will increase.
Answer:
Hypothalamus.
Explanation:
This is because hypothalamus is an area of the brain that is located above the brain stem and play functional role in integrating or activating the autonomic functions which receive autonomic regulatory from limbic system. The autonomic nervous system includes parasympathetic and sympathetic nervous system. The hypothalamus controls emotion and memory.
Answer:
A. increase the speed of nerve impulses
Explanation:
Schwann cells speed up nerve impulses by secreting a fatty substance called myelin around the axon of peripheral nerves. (Myelin can greatly increase the speed of impulses in neurons because it insulates the axon and assembles voltage-gated sodium channel clusters at discrete nodes along its length.)
I hope this helps! :)