Of these fossil species, which one is thought most likely the ancestor of later species of Homo?
A. Homo ergaster
B. Homo habilis
C. Homo rudolfensis
D. Homo sapiens
Answer: A
You might also like to view...
Alternative forms of genes are called
(a) homologues. (b) locus. (c) loci. (d) alleles.
The lipopolysaccharide (LPS) that is found in the outer membrane of gram-negative bacteria is also known as
A. teichoic acid. B. exotoxin. C. endotoxin. D. murein.
Which adaptation is constrained by the particular ancestral structure of the organism, resulting in a jury-rigged design?
A) antibiotic resistance in bacteria B) anatomy that allows upright posture in humans C) the wings of bats D) ethanol tolerance in fruit flies
In eukaryotes, specific transcription factors have two distinct domains, that is
A. a DNA-binding domain and an enhancer domain. B. a DNA-binding domain and a RNA-binding domain. C. a DNA-binding domain and an activation domain. D. a DNA-binding domain and an operator domain. E. a DNA-binding domain and a repressor domain.