Which type of plant has a network of cell that conduct water and solutes throughout the plant’s body?
a. nonvascular plants
b. vascular plants
c. gymnosperms
d. angiosperms
b. vascular plants
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Which one of the following is believed to be the major event that led to the appearance of diverse, complex multicellular organisms on Earth?
A. the increase in atmospheric oxygen B. the appearance of animals C. the appearance of plants on land D. the appearance of bulk transport systems
In the science fiction film, When Worlds Collide, 100 individuals are selected to leave a doomed Earth in a spaceship to re-establish humanity elsewhere. This scenario illustrates
A) a founder effect. B) a mutation effect. C) a population funnel. D) a deleterious allele.
Whales are believed to be products of divergent evolution sharing a common terrestrial ancestor with the modern hippopotamus. One piece of evidence that supports this theory that they were previously terrestrial is the presence of small bones in the tale of the whale believed to be leftovers from a time when whales had hips and lower limbs. What would we call these hips?
a. whale girdles b. homologous structure c. vestigial structures d. archetype features
Fertilization of plant gametes produces a
a. zygote. b. gametophyte. c. spore. d. meiospore. e. multicellular haploid plant.