Which of the following is a characteristic shared by all living things?
a. They contain ribosomes
b. They use proteins as their genetic material.
c. They are composed of one or more cells AND they contain ribosomes
d. They are composed of one or more cells, they contain ribosomes AND they use proteins as
their genetic material. - Answers c. They are composed of one or more cells AND they contain
ribosomes
What statement is TRUE about cells on Earth today?
a. All living things are made up of many cells.
b. All cells contain a nucleus.
c. All cells have organelles
d. All cells come from pre-existing cells. - Answers d.All cells come from pre-existing cells.
A eukaryotic organism.... (Choose the most complete answer.)
a. possess membrane bound organelles
b. lacks a nucleus
c. lacks a nucleus AND uses the same type of genetic material as prokaryote
d. possess membrane bound organelles AND uses the same type of genetic material as
prokaryotes
e. uses the same type of genetic material as a prokaryote - Answers d. possess membrane
bound organelles AND uses the same type of genetic material as prokaryotes
Which of the following is NOT required for evolution by natural selection?
a. differential reproduction
b. unlimited population growth
c. heredity
d. variation in traits - Answers b. unlimited population growth
, What does it mean to say that a characteristic of an individual organism is heritable?
a. The characteristic can be passed on to offspring
b. The characteristic does not evolve
c. The characteristic does not vary among individuals in a population
d. The characteristic is advantageous to the organism - Answers a. The characteristic can be
passed on to offspring
Evolutionary change occurs in_______________. Natural selection acts on __________.
a. species, genes
b. individual organisms, populations
c. species, populations
d. populations, individual organisms
e. genes, populations - Answers d. populations, individual organisms
Which of following were present in the common ancestor of Bacteria, Archaea and Eukarya?
a. ribosomes only
b. ribosomes and DNA
c. Ribosomes, DNA and endoplasmic reticulum
d. endoplasmic reticulum
e. DNA only - Answers b. ribosomes and DNA
Which of the following is TRUE about the tree of life?
a. All prokaryotes and their common ancestor make up a clade
b. There is no common ancestor of all life forms living today
c. Many organisms living today cannot be grouped into one of the three domains
d. Archaea are more closely related to Bacteria than they are to Eukarya
e. Two of the three domains of life consist of prokaryotic organisms - Answers e. Two of the