For each statement, indicate whether it is True or False. If you choose False, briefly explain why the statement is incorrect. True or false
There are more herbivores than carnivores because of the decreasing amount
of energy available at each level of the food web.
What will be an ideal response?
True
Reasoning: Answers will vary.
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Water potential in plants consists mainly of _____
A) solute potential and osmotic potential B) solute potential and membrane potential C) pressure potential and solute potential D) pressure potential and membrane potential E) solute potential only
A(n) ________ is a piece of DNA with all of the features necessary for chromosomal replication and which can carry large (up to 1000 kb) pieces of foreign DNA into a host organism.
What will be an ideal response?
During the initiation of nitrogen-fixation nodules, how do the Rhizobium bacteria enter into the cortex of the root?
A. through the plasmadesmata of the root hairs B. via the apoplastic pathway C. using proton pumps D. through a membrane tube called an infection thread E. by repeated cell divisions
Functional groups are very important in organic chemistry. Why are they considered to play such a critical role?
a. Functional groups make molecules resistant to denaturation. b. Functional groups decrease the molecular mass of the molecule. c. Functional groups confer special chemical properties to molecules. d. Functional groups dissolve molecules in water.