Which of the following groups is made up solely of carnivores?
a. insects
b. flatworms
c. arachnids
d. mammals
e. vertebrates
Ans: c. arachnids
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Which of the following is true of gap junctions?
A. They are holes in the cell wall through which the plasma membrane and endoplasmic reticulum of adjacent cells are connected. B. They are channels in the plasma membrane of plant cells made of transmembrane proteins that allow ions and small molecules to pass between adjacent cells. C. They are channels in the plasma membrane of animal cells made of transmembrane proteins that allow ions and small molecules to pass between adjacent cells. D. They provide points of structural support between adjacent plant cells. E. They provide points of structural support between adjacent animal cells.
Hamilton's Rule is a calculation of the strength in a population of
A. sexual selection. B. kin selection. C. natural selection. D. genetic relatedness. E. group selection.
Where does the process of translation of nuclear protein-coding genes in eukaryotic cells occur?
a. in the nucleolus b. in the nucleus c. in the Golgi apparatus d. in the cytoplasm
What is the relationship between genes and chromosomes?
A) Genes are the proteins around which DNA chromosomes are packaged. B) Chromosomes are proteins that carry genes made of DNA. C) A chromosome is a DNA molecule with many genes. D) Genes are the proteins encoded by chromosomes.