Allopatric speciation is a type of speciation whereby individuals of the same biological population becomes separated up to the extent that there will no longer be gene flow between them.

3 0

2 years ago

In the terrestrial food web above, what would be the effect of a farmer introducing a rat poison in to the ecosystem that is tox

love history [14]

Answer:

As explained below

Explanation:

The terrestrial food web is a food web that is characterized by all land animals and is largest terrestrial food chain on earth as the farmer tends to introduce a rat poison in this food web the rat may get killed by the medicine but if the same rate may be eaten by a snake the poison that killed the rat may infect the snake.

Hence the pollutant may climb up the ladder and intoxicate the hawk that depends on small animal for prey which may be further eaten by a man or other animal like a cat may then spread this disease or the infection to other upwards in the food chain and thus the process of Biomagnification takes place in the ecosystem.

8 0

2 years ago

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings?

faltersainse [42]

Birds and butterflies don't have a common ancestor because one is a member of a insect and the other is well a bird. They both have different body structure. One has bones and the other has an exoskeleton. hope this helps

3 0

2 years ago

[2]

Gennadij [26K]

Answer:

Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.

5 0

2 years ago