It would have resulted in a giant cloud of ____ that covered Earth, blocking the sun, and causing ____ to freeze and die.
What will be an ideal response?
dust, plants
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Which of the following is a net product of glycolysis? Select all correct choices
A. 2 pyruvate B. 2 ATP C. 2 NADH
Shitake mushrooms are decomposers that break down biological molecules from dead organisms
These organisms belong to the ____ kingdom.
a. Plantae b. Fungi c. Animalia d. “Protist” e. Bacteria
In a tetanus shot, patients are injected with small amounts of tetanospasmin, a toxin produced by the Clostridium tetani, the bacterium that causes tetanus. The gene for this protein is carried on a plasmid in the bacterium. Which of the following is true of this gene?
a. It is part of the Clostridium tetani chromosome b. It cannot go through horizontal gene transfer c. It can enter another bacterium by transformation d. It cannot go through vertical gene transfer e. It is found in the nucleus of the Clostridium tetani
A branching tree that represents the evolutionary relationships among a number of species is, in scientific terms, called a(n)
A. family tree. B. pedigree. C. androgeny. D. phylogenetic tree.