The answer is; D
The angle at which the sun rays strike the earth at the equator is more or less 90 degrees while you move towards the poles, it much less than this. This means that the unit of sunlight per surface area received at the equator is higher than that at the poles. This is why the equator is always warmer than the poles.
I think the answer might be D
In process
of meiosis. The hypothalamus or the master gland in most animals, including
humans send signals to the ovaries and testes of the reproductive system. In
response to these signals, these ovaries and testes undergoes the sex cells
division which is called meiosis. Spermatogenesis in male gametes, is the
process of sex cell division among sperm cells. On the other hand, oogenesis is
for the female gametes. These cell divisions among respective gametes produces
haploid cell which only contain one pair of chromosomes, in number -23.
In response to this inquiry's question. Simply reproduction.
Answer:
a
Explanation:
In the case of the light bulb, electrical energy is being transformed into light and thermal (heat) energy. Different wattages and types of bulbs give off varying amounts of light and heat.
Answer:
The elephants are the keystone species in this ecosystem.
Explanation:
The elephants' job is to knock down trees from time to time to get food from tall stock. This prevents the trees from overpopulating and allows shrub lands to stay in place. This is important as herbivores can continue to graze in large herds and carnivores can continue using the same hunting strategies with little to no push backs by trees.
This makes to elephants a keystone species as without them, the foundation species will decrease in population and create a whole different ecosystem with the trees as the new foundation species.
