Which of the following is an example of analogous structures?
a. Wings of a bee and a bird
b. Forelimbs of a bat and a whale
c. The tree-like and shrub-like silversword plants of Hawaii descended from a single colonizer
d. Skulls of apes and humans
Answer: a. Wings of a bee and a bird
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Answer the following statements true (T) or false (F)
1. Anton van Leeuwenhoek's experiments helped to prove that microorganisms cause disease. 2. Louis Pasteur and Robert Koch made significant contributions to the “Germ Theory of Disease.” 3. Pasteurization is a process that kills all microorganisms present in the liquid being pasteurized. 4. Microorganisms contribute more oxygen to our atmosphere than plants do. 5. Infectious diseases that are transmitted from animals to humans are known as zoonoses.
Which gland stores hormones produced by another gland, rather than producing hormones itself?
a. hypothalamus b. thyroid c. posterior pituitary d. pancreas
Why is Graves’ disease dangerous? What will be an ideal response?
Glycogen is a polysaccharide used for energy
storage by a. animals. b. plants. c. protistans. d. bacteria. e. fungi.