The most successful (largest numbers of species)
forms of life that have ever evolved are the
a. vertebrates.
b. insects.
c. humans.
d. protozoans.
e. mollusks.
Answer: b
You might also like to view...
Microfilaments such as actin, microtubules, and the intermediate filaments form the cell-supporting structure called the:
A. cytoplasm. B. nucleus. C. plasma membrane. D. cytoskeleton.
The basis of cellular differentiation is
a. the operon b. selective gene expression. c. cloning. d. mutation.
As adults, __________ are sessile crustaceans
A. ticks B. the decapods C. shrimp D. the uniramids E. barnacles
The egg of a plant has a haploid chromosome number of 12 (n = 12). What is true about the number of chromosomes in the cells of other tissues of this plant?
A) The sperm has 6 chromosomes. B) The leaves and stems have 12 chromosomes. C) The zygote has 12 chromosomes. D) The endosperm has 36 chromosomes.