Protists include
A. algae and protozoa.
B. helminths.
C. yeasts and molds.
D. All of these choices are correct.
Answer: A
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How do the characteristics of life apply to situations such as individuals on life support, organs on life support, frozen organisms (including embryos), genetically engineered organisms, test tube babies, and hybrids between computers and living things?
What will be an ideal response?
To control the population of RIFAs, _____ have been introduced, since they lay eggs in RIFAs but do not harm native
ant species.
a. houseflies b. fruit flies c. phorid flies d. hanging flies e. caddis flies
The portion of the DNA molecule that is translated is composed of ______________.
A. introns B. anticodons C. exons D. transcriptions E. exons and transcriptions
The scrotum is a sac-like structure outside the abdomen in which the testes are suspended. Why is this structure essential?
A. There is too much hormonal influence if they remain in the abdomen. B. There is not enough space in the abdomen to grow properly. C. Lower temperature is required for normal development of sperm. D. Sperm must be closer to the penis to be ejaculated.