The Cenozioc era is referred to as the age of mammals.
The fact that choanoflagellates and collar cells of sponges resemble each other support the inference that chonoflagellates and sponges are sister groups.
Choanoflagellate are single -celled aquatic flagellate with single flagellum surrounded by a collar of microvilli. In addition choanoflagellate have a long interested evolutionary biologist due to their striking resemblance to collared cells of sponge.
Answer:
A) a single variable
Explanation:
An appropriately designed experiment usually involves only one independent variable. This allows the scientist to truly determine whether the variable manipulated is what had an effect on the subject. You may test more than one variable, but this is usually done or experimented separately, or one at a time.
Answer:
Wind pipe ( Where you breathe)
Explanation:
Two is is the answer, it is incorrect, so in this case it is not scientifically correct because it more of a opinion, not a thing you based on and provide proof for from a scientific experiment.