Which plant cell organelle contains its own DNA and ribosomes?
A) glyoxysome
B) vacuole
C) mitochondrion
D) Golgi apparatus
E) peroxisome
Answer: C
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The extinction vortex
A. is what happens as a population decreases and becomes more vulnerable to extinction from a variety of causes. B. begins when one species in an ecosystem goes extinct and other species follow. C. is what happens when competing species fight over a single niche, often driving both species to extinction. D. is a spiral of events that occur once a species has become overcrowded through excess reproduction. E. is a spiral of events that includes introduction of competing species, overexploitation, and disease, in that order.
____ are the most diverse animal phylum and ____ are the most diverse animals in this phylum
a. Cnidaria; insects b. Arthropods; crustaceans c. Echinoderms; insects d. Birds; ducks e. Arthropods; insects
Malaria is caused by Plasmodium falciparum, a nonmotile protist that contains a cluster of microtubules at one end of the cell. Once injected into the bloodstream, these microtubules are used to attach to red blood cells. In areas of the world where malaria is endemic, people have a relatively high incidence of the allele for
A. sickle cell. B. cystic fibrosis. C. blue eyes. D. hemophilia. E. mental disabilities.
Choose the two methods of ATP formation in cellular respiration
What will be an ideal response?