1. Which of the following characteristics is absent in viruses?
A.
a protein capsid
B.
the ability to r e produ ce
C.
protein synthesis machinery
D.
the ability to develop gene mutations
2.Which of the following characteristics is present in both humans and archaea?
A.
the ability to maintain homeostasis
B.
the ability to as 3 xua lly reproduce
C.
a hierarchy of organ systems
D.
a cell nucleus
Which characteristic differentiates an angiosperm from a fern?
A.
the alternation of generations
B.
the presence of cotyledons
C.
the presence of vascular tissue
D.
the alternation of sporophytes