What description best explains why viruses can become more pathogenic to hosts that were not affected by the virus before?

What is able to lower the activation energy in a chemical reaction

Viruses are generally considered to be nonliving. Should viroids and prions also be viewed as nonliving? Why or why not?

This is the ceasing of the existence of any particular species.

Responding to the environment is a characteristic of life best shown by which example? a human shivers on a cold day a horse trots in a field a dog swims in a pond a cat licks its paws

Two species of finches are in competition for the limited resources of an ecosystem. one species eats fruit and the second species eats seeds. if a third species of herbivore finches moves into the area, how will the ecosystem change?

The regulatory enzymes in gluconeogenesis are Group of answer choices A) hexokinase, phosphofructokinase, and pyruvate kinase B) glucose-6-kinase, aldolase, and enolase C) pyruvate carboxylase, aldolase, and phosphofructokinase D)

Offspring receive how many alleles of a particular gene from each parent? A) 1 B) 2 C) 3 D) 4

How does surface area affect c. gas and nutrient exchange between blood and tissues?

Which are sources of adult cells? check all that apply. A. bone marrow B. amniotic fluid C. brain D. gametes E. liver F. embryo

True or false growth of an organism does not necessarily mean an increase in size.