Which of these is a correct difference between
roots and shoots?
a. roots lack a cuticle covering their
epidermis-shoots have one
b. roots have a protective cap around their
apical meristem-shoots don’t have one
c. roots grow down-shoots grow up
d. shoots are photosynthetic-roots are not
e. all of these are differences between roots
and shoots
E
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You may have heard about Kopi luwak coffee, produced from coffee beans collected after passing through the digestive tracts of animals known as civets. Why might the coffee plant have developed fruit that would be ingested by civets?
Select all correct choices. A. Passing through the civet digestive tract causes vernalization of coffee seeds. B. Passing through the civet digestive tract helps in the dispersal of coffee seeds. C. Passing through the civet digestive tract activates the photoreceptors of coffee seeds. D. Passing through the civet digestive tract helps coffee seeds germinate.
A species of trilobite was found in the fossil record. At its first appearance, it is similar to an ancestor species but differs from the ancestor in several key characteristics. It seems to change little over several million years, then is extinct. This illustrates the concept of
A. punctuated equilibrium. B. gradualism. C. developmental evolution. D. anagenesis. E. evo-devo.
In a person with cystic fibrosis, the mutation
causes which of the following to happen?
a. the protein clings to the inner surface of the plasma membrane b. the protein never leaves the endoplasmic reticulum c. the protein is shuttled to the nuclear membrane instead of the plasma membrane d. the protein is shuttled to the plasma membrane instead of the nuclear membrane e. the protein is expelled from the cell by exocytosis before it can do its job
The carrying capacity of an area can be reduced if there is too much
A. energy. B. raw material. C. waste. D. All of these answers are true.