In primary culture all cells survive.
a. true
b. false
Ans: b. false
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Answer the following statements true (T) or false (F)
1. Some algae are more closely related to plants than they are to other algae. 2. Protozoa are monophyletic. 3. The supergroup Excavata contain some of Earth's most recent eukaryotes. 4. Metaboly is a reduced level of metabolism that allows protists to remain dormant under stressful environments. 5. Paramylon are stored particles of carbohydrate.
The tissue found in the center of a eudicot root is
a. xylem. b. endodermis. c. cortex. d. phloem. e. pericycle.
The release of organically bound nutrients into an inorganic form is called ________
Fill in the blank(s) with correct word
cWhich of the following statements concerning Ras proteins is FALSE?
a. They are inactivated when phosphorylated. b. They are G proteins. c. They are active when bound to GTP. d. They are activated by tyrosine kinase receptors. e. They include MAP kinases.