Oxygen enters the nose and follows the path to your lungs. cilia keep the oxygen that moves into your lungs clean. next aveoli allow oxygen from the air to pass into your blood. all of these parts working together create a very important process for humans. what is this process called?

a) digestion

b) evolution

c) reproduction

d) respiration

Anybody who knows ap biology, can you friend or message me

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.