2 Points What do a dinosaur and a tree have in common?
A. They may have shared the same matter.
B. They both get their energy from plants.
C. They both get energy directly from the Sun.
Ο Ο
D. They both have the same exact DNA.
SUBMIT

An easy way to calculate the amount of energy available at each level is to what?

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.