Dna, the genetic material of living organisms, is damaged by light in the

An element's atomic number is 36. how many protons would an atom of this element have?

Which type of property of matter can be observed without changing the composition of the substance? a) physical properties b) reversible properties c) chemical properties d) irreversible properties

How can a scientific hypothesis be used to answer a specific question about an observed phenomenon? A. A hypothesis can suggest an explanation for an observed phenomenon that can later be tested through experimentation. B.

A common way by which virus vaccines are made is to introduce a mutation that makes the virus less virulent (i. e. that reduces the severity of infection) and to expose patients to that mutated virus.

2.) The seafloor holds promise as a source of many natural resources, including valuable metals. As demand for natural marine resources increases, mining these resources from the seafloor also increases.

A toxin selectively kills astrocytes. How would their loss affect functions of the nervous system? a. loss of autonomic control of blood pressure and heart rate b. loss of the blood-brain barrier c. loss of all sensory function d.

The model that assumes that evolution proceeds with a slow successive change in a given evolutionary line are referred to a. the sympatric model. b. the allopatric model. c. successive descent model. d. gradualism. e. punctuated equilibrium

A small, fast moving river is in a V-shaped valley on the slope of a mountain. If you follow the river to where it passes through a plain, what will the river most likely look like compared with how it looked on the mountain?

Why is the model used to describe the plasma membrane called the fluid mosaic model?

Which statement best describes the limits of science? A. Science can answer only mathematical questions. O O B. Science can answer all questions. O C. Science cannot answer difficult questions. O D. Science cannot answer philosophical questions.