Answer:
The independent variable is allowed to change and the dependent variable is held constant to see what other conditions
Explanation:
the dependent variable is what is being tested therefore it is what remains constant unlike the independent variable.
Hope this helps. let me know if im wrong.
Answer: The answer is Echinoderms
Explanation: The skin of most species is covered by spines, “warts,” or other projections.
The answer: Ventricles.
There are four ventricles in the brain all connected between them,
where the cerebrospinal fluid is produced. There is a choroid plexus in each ventricle that produce the fluid.
The four ventricles:
<span><span>- 2 lateral ventricles right and left (one for each hemisphere)</span>
-third ventricle<span>
- fourth ventricle</span></span>
It seems that you have missed the necessary options for us to answer this question, but anyway, here is the answer. <span>When nonrandom mating occurs in a population so that individuals prefer to mate with similar individuals, allele frequencies should r</span>emain the same, but homozygotes will be overrepresented in the population.
