What are the arrows pointing to in the accompanying figure?
a. double ionic bonds
b. single ionic bonds
c. double covalent bonds
d. single covalent bonds
e. hydrogen bonds
ANSWER: c
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You are examining a human pedigree for a trait. You notice that an offspring can be affected even if neither parent is affected. This immediately tells you that the trait is:
A. dominant. B. recessive. C. epistatic. D. produced by multiple alleles. E. incomplete penetrance.
True kidneys have tubules called ____
a. nephrons b. hepatic tubules
c. metanephridia d. Malpighian tubules e. protonephridia
Why are mitochondria and chloroplasts believed to have entered early eukaryotic cells by endosymbiosis of bacteria?
A. They contain DNA. B. They are the same size as bacteria. C. They are not derived from the endomembrane system as other organelles are. D. All of the choices are correct.
Discuss the difference between home range and territory.
What will be an ideal response?