In which organelle does photosynthesis take place? A. nucleus B. endoplasmic reticulum C. mitochondrion D. chloroplast

What covers a cell, for biology.

A scientist conditions a dog to salivate in response to the sound of a tone. the researcher continues to present the tone, but gives the dog no food. eventually, the dog stops salivating to the tone. the dog is demonstrating:

Suppose you observed 455 individual cockroaches in the infested apartment after 5 years of exposure to hydramethylnon + glucose bait.

Which statement best contrasts polygenic inheritance with multiple allele inheritance? A. Polygenic inheritance results in offspring with only recessive alleles, while multiple allele inheritance results in offspring with both dominant and recessive

Which of the following types of reactions would decrease the entropy within a cell? A) anabolic reactions B) hydrolysis C) digestion D) catabolic reactions

Canine and feline species maintain their reproductive isolation mechanisms due to the fact that the formation of a fertilized zygote is impossible. What type of isolation describes this? a. Gametic b. Mechanical c. Temporal d. Ecological

In humans, chemical digestion is accomplished by enzyme action that begins in the mouth and ends in the a. esophagus b. stomach c. small intestine d. gallbladder

Which of the following best describes computer modeling in biology?

If an atom has six valence electrons how many does it need to obtain a full outer shell

The two amino acids animated above are joined together by a?