What are fossils? a. molds and casts of organisms that live today b. drawings of ancient animals and other organisms c. footprints or burrows of small animals that live today d. the preserved remains or traces of organisms that lived in the past

After the last ice age, standard ice blocks left behind by the continental glacier melted and formed

The initial period of population growth for a species in an environment is

What is one property of viruses that makes it difficult to cure viral infections? the ability of viruses to hide in the host's DNA the slow rate at which viruses evolve into host cells the lack of genetic variation in viral capsids the tendency for

How do these differences relate to the functions of these two similar epithelium?

Which type os landform develops at plate bounderies where one oceanic plate descends beneath another? A. Mountain ranges formed by a batholith B. Rift valley C. lava plateau formed by uplift D. volcanic island arc

While the bones of this joint may fracture, they rarely become dislocated. The articular capsule and accessory ligaments of this joint make it one of the strongest structures in the body.

A 5-year-old girl catches the flu from a friend at day care after the friend sneezed and wiped mucus on a toy that the girl played then with. In this case, what is the portal of exit in the chain of infection?

Why does a tiger look so much different as an adult

Why do you think some nerve cells are long and thin?

What is the name of the macromolecules that makes up DNA