Minerals that do not have weak bonds along specific planes will

A. streak

B. luster

C. cleave

D. fracture

Modern birds have feathers and can fly. when paleontologists discovered a fossil of archaeopteryx, a dinosaur with feathers, they suggested perhaps it could fly. what big idea in biology did they apply in this situation?

Which of the following is true regarding audience? A. Consideration of the audience is less important than the message of an essay. B. An author should write for himself first; the audience is secondary. C.

The number of individuals of a species per unit area is known as?

Microscopic organisms with calcium carbonate shells are called.

It is believed that the coelacanths and lungfish (lobed fin fishes) represent a crucial link between other fishes and tetrapods. what is the major feature in these fish in support of this hypothesis?

Which of the following pairs are isotopes of the same element

A farmer cut a branch from his favorite, mature fruit tree, planted it in the soil, and it grew to be a new tree. The farmer's method of growing a new plant is a type of A) pollination. B) seed production. C) sexual reproduction.

is the net movement of molecules or ions from a region of higher concentration to a region of lower concentration brought about by the energy of the molecules

Which is closer to the Earth? the Sun or the outer planets?

Which term means a red blood cell? Erythrocyte leukocyte microcyte phagocyte?