Comparison of conserved sequences among related species usually leads to the identification of ________, which illustrate the nucleotides most often found at each position of DNA in the conserved region
Fill in the blank(s) with correct word
consensus sequences
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Why is the destruction of helper T cells caused by HIV infection so crippling to adaptive immunity? What will be an ideal response?
Acid precipitation is due to the addition of ________ to the atmosphere.
Fill in the blank(s) with the appropriate word(s).
A spider and an insect are both arthropods, but they have some different characteristics. Choose the descriptions that are true for BOTH a spider and an insect. Check all that apply.
A. They are members of Ecdysozoa. B. They have a head, a thorax, and an abdomen. C. They have sensory antennae. D. They have an open circulatory system. E. They have metamorphosis. F. Some species are carnivorous and some are herbivorous. G. They have spinnerets. H. They have a chitinous exoskeleton. I. They molt.
After running a marathon, it is best to drink water to restore what was lost due to heavy sweating.
Answer the following statement true (T) or false (F)