Which group is considered most ancient?
a. Homo erectus
b. Australopithecus afarensis
c. Australopithecus africanus
d. Homo sapiens
e. Sahelanthropus tchadensis
Answer: e
You might also like to view...
Several hypotheses have been proposed to explain the evolutionary origin of viruses. Which of the following does NOT assume that viruses evolved from living cells?
A. Viruses evolved from macromolecules - lipids, proteins, nucleic acids, and carbohydrates. B. Viruses evolved from plasmids that acquired genes for their own replication. C. Viruses evolved by losing all the genetic information that is not absolutely required for reproduction. D. The precursors of DNA genomes may have been self-replicating RNA molecules. E. Viruses evolved from chromosomal elements.
The main photosynthetic area of a leaf is ____
a. mesophyll b. cortex c. phloem d. epidermis
e. endodermWhich of the following statements about
digestion in ruminants is false? a. Ruminant animals have symbiotic bacteria to aid in the digestion of their food. b. Food materials are re-chewed. c. Chewing results in mechanically breaking down food and exposing more cellulose to digestive enzymes. d. Ruminants have a smaller range of foods in their diet than do humans. e. Pronghorn antelopes and other herbivores have a single but disproportionately large stomach.
Why is the term GMO a misnomer for transgenic organisms? What will be an ideal response?