To control pathogenic and disease-causing organisms, spices can be fumigated using ________.
A. ammonium gas
B. chlorine gas
C. heavy metals
D. ethylene oxide
Answer: D
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If both parents are affected, due to the presence of one copy of the dominant allele responsible for the trait being studied, what are the odds that they would have a normal child?
a. 25% b. 50%
This organism would belong to which group of animals?
1.sponges
2.jellyfishes
3.echinoderms
4.chordates
The number of species inhabiting an ecosystem is referred to as ________.
Fill in the blank(s) with the appropriate word(s).
Over a span of several thousand years, a number of species show adaptations to climate change: Drier, warmer conditions select for succulent vegetation and deep taproots in plants, burrowing in mammals and amphibians, and other similar adaptive changes
What could be predicted to happen if the climate shifts in the opposite direction and becomes progressively wetter and cooler? A) Ongoing processes of adaptation will continue because evolution is goal directed. B) Different adaptive trends will probably be favored in the new climatic environment. C) Current adaptive trends will continue, but organisms will now also have to add on adaptations to deal with cool, wet conditions. D) Adaptation will cease because cool, wet conditions are suitable for all life on Earth.