Protein that targets antigens of pathogens and toxins
Answer: Antibody
Explanation:
An antibody is a large protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
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The umbilical cord functions to
a. carry waste products in the blood from the fetus to the mother. b. carry waste products in the blood from the mother to the fetus. c. carry oxygen in the blood from the mother to the fetus. d. do both a and c.
Character displacement makes competing species less similar, which facilitates __________. Fill in the blank(s) with the appropriate word(s)
When members of the gene pair carried by an individual are not alike, the individual is said to be
____________________. Fill in the blank(s) with the appropriate word(s).
Refer to Figure 42-2. The neuron labeled 3 is:
a. an interneuron in the gray mater of the cord.
b. an interneuron in the white mater of the cord.
c. a sensory neuron in the gray mater of the cord.
d. a sensory neuron in the white mater of the cord.
e. a motor neuron in the gray mater of the co