Australopithecus afarensis E) first hominin to leave Africa
What will be an ideal response?
Answer: D
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The gas tail of a comet
a. is smooth and featureless with a spectrum identical to that of the Sun. b. is present even when the comet is located in the region of the Kuiper belt. c. is unaffected by the magnetic field of the Sun. d. always points toward the Sun. e. is streaked and shows emission lines of ionized atoms.
In the ABC model of flower development in
Arabidopsis thaliana, sepals form when gene(s) ____ is(are) switched on. a. A b. A and B c. B and C d. C e. A and B and C
Which enzyme is responsible for integration of a temperate phage into a host genome?
A) ?-galactosidase B) transposase C) integrase D) transacetylase E) permease
The megasporangium of seed plants is enclosed by leaf-like structures called
a. megaphylls b. microphylls c. cambia d. integuments e. none of these