The right option is a. variations.
Variations are the differences between the individual organisms of the same species which is as a result of genetic differences or the influence of environmental factors on the expression of the genetic abilities. Variation may be expressed in behavior, physical appearance, learning, and metabolism. The two types of variations are somatic variation and germinal variation.
Epididymis
Tube in each part of the testis where sperm is stored temporarily
Happy thanksgiving if you celebrate it
You would need to have exothermic
Exothermic is when heat is being released
Hope this helps
The deer population will decrease