1. What is the term that refers to the change that happens in a living organism because of a stimulus? A. division
B. response
C. stimulus
D. heterotrophs
E. homeostasis

2. Choose the best example of an organism's response to a stimulus.
A. taking a bath
B. going to school
C. a boy shouting at his playmate
D. dog barks when there are fireworks
E. a man eating ice cream

3. Identify the process by which living organisms stay the same.
A. ectotherm
B. homeostasis
C. experimentation
D. response
E. heterotrophs

4. How does a one-celled organism grow?
A. It gets smaller.
B. It gets bigger.
C. It divides.
D. The size stays the same.

Mention true or false : a) cholera is marked by acute diarrhea and no urination. b)mosquitoes are the source of dysentery germs.

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z