Biology Review 1 Question Preview (ID: 61000)
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Studying fossils provides evidence for evolution because fossils
a) (1) take a long time to form
b) (2) can show patterns of biological change over time
c) (3) always contain complete DNA sequences
d) (4) found in the same area are usually closely related to each other
Which statement best describes the interactions between the structures found within a singlecelled organism?
a) (1) They allow the organism to maintain homeostasis.
b) (2) They prevent homeostasis from damaging the cell.
c) (3) They must act independently of each other and prevent homeostasis.
d) (4) They carry out the same life process in order to maintain homeostasis.
Sexually reproduced offspring have traits similar to their parents because they receive
a) all of the proteins from each parent
b) some of the proteins from both parents
c) all of the genes present in both parents
d) some of the genes present in each parent
Which row in the chart below correctly pairs a group of organisms with the type of nutrition they carry out?
a) a
b) b
c) c
d) d
Which row in the chart below correctly pairs a group of organisms with the type of nutrition they carry out?
a) (1) carnivores herbivores
b) (2) decomposers carnivores
c) (3) herbivores producers
d) (4) producers decomposers
Rubber usually comes from petroleum or from the Asian rubber tree plant. Scientists have modifi ed a single trait in the domestic plant, guayule, to increase its ability to produce rubber for commercial use. Young guayule plants are shown in the phot
a) selective breeding of two similar plant varieties
b) genetic recombination during sexual reproduction
c) genetic engineering to alter a specifi c gene
d) fertilizing the plants with key substances found in petroleum
A response of a normally functioning immune system that can be harmful is
a) A response of a normally functioning immune system that can be harmful is
b) rejecting an organ transplant
c) recognizing chemical signals
d) fi ghting off a bacterial infection
Which molecules are normally found in single-celled organisms?
a) a
b) b
c) c
d) v
Killer whales are an endangered species
a) a
b) b
c) c
d) d
A biotechnology tool, known as CRISPR-Cas9, allows scientists to precisely edit genes. In order to edit genes, CRISPR-Cas9 must be able to
a) a
b) b
c) c
d) d
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