For water fleas of the genus Daphnia, switching from a pattern of asexual reproduction to sexual reproduction coincides with _____
A) environmental conditions becoming more favorable for offspring
B) greater abundance of food resources for offspring
C) periods of temperature or food stresses on adults
D) completion of puberty
E) exhaustion of an individual's supply of eggs
Answer: C
You might also like to view...
Tubulin is to microtubules as ________ is to microfilaments.
What will be an ideal response?
Which of the following is the term for the chemical reactant to which an enzyme binds?
a. Catalyst b. Substrate c. Active site d. Lock-and-key
The diagram shows the rate of diffusion into a cell using carrier proteins. McGraw-Hill EducationCarrier proteins are saturated at which point?
A. 1 B. 2 C. 3 D. 4
Which features are found in organisms that have an incomplete digestive tract?
A. pharynx, digestive enzymes and diffusion of nutrients B. digestive enzymes, esophagus and diffusion of nutrients C. crop, digestive enzymes and diffusion of nutrients D. gizzard, salivary amylase and a pharynx