Which one of the following is not an adaptation shown by modern birds?
A. A respiratory system that allows all of the air to pass through the lungs in one direction
B. Wings and a long feathered tail
C. Modified beaks and feet to support feeding behavior
D. Complete division of the heart into right and left halves
E. Endothermy
Answer: B
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What makes sexually reproduced offspring genetically different from their parents?
A) genetic recombination during meiosis B) genetic recombination during mitosis C) crossing over during mitosis D) Sexual reproduction does not produce genetically different offspring.
Wuchereria, Brugia, Loa, and Onchocerca are all classified as:
a. intestinal cestodes. b. tissue nematodes. c. filarial nematodes. d. blood trematodes.
Carnivores can have an indirect, positive effect on plants by reducing populations of herbivores
Indicate whether the statement is true or false
What effect would a decrease in the amount of greenhouse gases in Earth's atmosphere have?
A) cooler average global temperatures B) warmer average global temperatures C) no change in average global temperatures D) cooler temperatures in the northern hemisphere and warmer temperatures in the southern hemisphere