What is the function of a chordate’s notochord?
a. Providing skeletal support
b. Facilitating digestion
c. Enabling locomotion
d. Allowing water to exit
a. Providing skeletal support
The function of a chordate’s notochord is to provide skeletal support.
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Complement-fixing antibodies are those that function by:
a. attaching to the surface of pathogens and contributing to their destruction by the lytic action of complement. b. binding to and blocking surface receptors for host cells. c. attaching to the surface of pathogens and making the pathogens more amenable to ingestion by phagocytic cells. d. attaching to the surface of pathogens and contributing to their destruction by che-motaxis.
The core of an intestinal microvillus is composed of a tight bundle of ________
Fill in the blank with correct word.
The filtration of wastes from the blood using artificial devices because of failure or impairment of the kidneys is known as ________
Fill in the blank(s) with correct word
How does an increase in atmospheric greenhouse gases increase global temperatures?
A) By preventing some of the heat from escaping the planet's surface B) By decreasing the ozone layer in the atmosphere C) By increasing the amount of heat from the sun that reaches the planet's surface D) By reacting with each other