Which statement about echinoderms is FALSE?
a. They develop as deuterostomes.
b. They fall within the group Bilateria.
c. They show evidence of segmentation.
d. The fall on the eumetazoan branch of animals.
e. They fall within the group Deuterostomia.
c
You might also like to view...
The tissue that lines internal surfaces of the body is:
a. epithelial b. loose connective c. supportive connective d. fibrous e. adipose
Before biotechnology, human proteins used in treatment of diseases were
A. not available. B. synthesized chemically. C. substituted for by similar animal proteins. D. harvested from blood or cadavers. E. substituted for by similar animal proteins and harvested from blood or cadavers only
You would like to induce a transversion mutation into a sequence of DNA. Which type of chemical mutagen would give you the best chance of inducing the correct mutation without causing transition mutations as well?
A) base analog B) deaminating agent C) oxidative agent D) alkylating agent E) intercalating agent
Which of the following are among the major components of prokaryotic ribosomes?
A) lipids and carbohydrates B) 16S rRNA, 5S rRNA, and 23S rRNA C) 16S rRNA, 5.8S rRNA, and 28S rRNA D) 18S rRNA, 5.8S rRNA, and proteins E) 12S rRNA, 5.8S rRNA, and proteins