Consider the evolution of chordates, organisms with a hollow nerve chord. choose the organism closely related to humans. a)lamprey b)sea star c)lancelets d)bottle star

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

Easy 6th grade work! 100 points! i need fast! compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.