Identify the modes of nutrition found in members of the protists, and include two examples of each. What will be an ideal response?
Autotrophs (photosynthesis): Chlamydomonas and Macrocystis
Heterotrophs (absorption): Saprolegnia and Phythophtora
Heterotrophs (ingestion): Paramecium and Trichomonas
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Which of the following statements is true?
1.Marine teleosts are hyperosmotic to their environment and drink seawater to replace lost body fluids.
2.Freshwater fishes are hypoosmotic to their environment and excrete large volumes of dilute urine to get rid of excess water.
3.Both of these statements are true.
Research on HIV vaccines is progressing, but success to date has been limited to vaccines that are of
limited effectiveness against a few strains of the HIV virus. However, flu vaccines are similar in their limitations. Why are ‘limited effectiveness’ flu vaccines released, but not HIV vaccines? What will be an ideal response?
The substance on which an enzyme acts is called the:a
substrate. b. product. c. ATP. d. free energy. e. cofactor.
The release of stored memory B and T cells in response to a second encounter with an antigen is called ________
A) secondary response B) innate response C) immunity D) primary response