Defense of an area that contains important resources for survival is termed
A) appeasement.
B) kinesis.
C) passive behavior.
D) territoriality.
E) aggression.
D
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Viruses are composed of only ____
a. proteins b. carbohydrates and proteins c. proteins and nucleic acids d. nucleic acids e. carbohydrates, proteins, lipids, and nucleic acids
According to Mendel's Law of Independent Assortment,
A) alleles of genes on different chromosomes assort randomly into different gametes. B) alleles of genes assort into gametes grouped according to how they were inherited originally. C) dominant alleles for one gene must assort into the same gamete as the dominant alleles for another gene. D) dominant alleles for one gene must assort into the same gamete as the recessive alleles for another gene.
Epidermal growth factor is a mitogen, because it stimulates cells to divide
(1) Explain the role of Ras in epidermal growth factor signaling that results in cell division. (2) Design two experiments to prove that Ras is a key player in the EGF-activated pathway. (3) What assay other than cell division could you use to assess whether the EGF-Ras-MAPK pathway has been activated? What will be an ideal response?
The face of a sunflower turns to follow the sun as it moves across the sky. This is an example of
A. homeostasis. B. reproduction. C. metabolism. D. response to stimuli. E. development.