What is the most compelling reason why "protists" are not considered to be a taxonomic group?
A. The organisms often included in this group are very diverse and don't form a cohesive taxon.
B. The group includes both prokaryotic and eukaryotic cell types.
C. They are too small to be included among the eukaryotes.
D. They are not cellular life forms.
Answer: A
You might also like to view...
In a pond, tadpoles eat algae and fish eat the tadpoles. Above the pond, grasshoppers eat grass and, at night, are preyed upon by bats. Other bats eat the fish that eat the tadpoles. In this community, the tadpoles are:
A. primary producers. B. primary consumers. C. secondary consumers. D. tertiary consumers. E. detritivores.
If an Arabidopsis plant does not express homeotic genes during flower development
A. the plant will die. B. the plant will only develop to the heart stage. C. the plant will not develop cotyledons. D. the plant will develop leaves instead of flowers. E. the plant will develop flowers instead of leaves.
The anatomical structure identified with the
letters "B" and "E" in the figure above is a. the arterial wall. b. the lumen. c. atherosclerotic plaque. d. the capillary wall. e. none of these
Which of the following is true of metabolism in its entirety in all organisms?
A) Metabolism depends on a constant supply of energy from food. B) Metabolism uses all of an organism's resources. C) Metabolism consists of all the energy transformation reactions in an organism. D) Metabolism manages the increase of entropy in an organism.