What is ALH 84001 and why is it significant to discussions of the evolution of life?
What will be an ideal response?
Meteorite ALH 84001 is one of a dozen meteorites known to have originated on Mars. A group of researchers claimed that ALH 84001 contained chemical and physical traces of ancient life on Mars, including what appeared to be fossils of microscopic organisms. That evidence has not been confirmed, and the claim continues to be tested and debated.
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The only way to meet the resource needs of
future generations is through
a. sustainable resource use. b. biological magnification. c. creating conservation hotspots. d. clear cutting and mining. e. increasing use of nonrenewable resources
The large vessels of the circulatory system that carry blood away from the heart are
A. veins. B. capillaries. C. arteries. D. lymph vessels. E. sieve tubes. Arteries leave the heart
The cell in micrograph "I" is at which stage of the cell cycle?
a. prophase b. telophase c. interphase d. anaphase e. metaphase
All of the following pertain to red tides, except
A. due to overgrowth of toxin-producing dinoflagellates. B. due to overgrowth of red and brown algae in water. C. involve toxin concentrating in shellfish. D. humans can become ill from eating the shellfish. E. cause paralytic shellfish poisoning.