Answer the following statements true (T) or false (F)
1. Slime molds possess characteristics of both fungi and protozoa.
2. Protozoa in the category known as Mastigophora move by means of cilia.
3. A dimorphic fungus would exist as a mold inside the human body.
4. The organism that causes a “red tide” is an alga.
5. Volvox is a multicellular alga.
1. TRUE
2. FALSE
3. FALSE
4. TRUE
5. TRUE
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Which of the following statements is accurate?
A. Prokaryotes are found virtually everywhere on Earth. B. Prokaryotes nutrition is highly diverse. C. Prokaryotes come in a variety of shapes. D. All of the above are accurate statements.
The molecule that contains the information for making a cell's proteins and must replicate itself during cell division
A. DNA. B. ATP synthase. C. RNA. D. FAD. E. NAD.
Why is more than one sperm needed for fertilization to occur, when only one sperm actually penetrates the egg?
a. the sperm work together to lower the acidity in the uterus for survival b. the sperm work together reduce drag as they swim up the oviduct c. the sperm work together to surround the egg prior to fertilization d. the sperm work together to break down the egg's protein layer e. the sperm work together to break down the cap on the sperm's head
Under which of the following situations would receptor down-regulation most likely occur?
a. The concentration of a neurotransmitter is too low. b. The concentration of a hormone is too high. c. The number of receptors in the plasma membrane is too low. d. The number of G proteins is too high. e. The cell is unable to manufacture cyclic AM