The number of described species is estimated to be 10 million.
a. true
b. false
Ans: b. false
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If you were given a new necklace and developed reddening, swelling, and itching of your skin around your neck 24 hours after putting on the necklace, what reason would you give to this phenomenon? What immune cells are involved?
What will be an ideal response?
California's most extensive ecosystem, the ____ biome, is dominated by drought-resistant, fire-adapted shrubs with
small, leathery leaves.
a. temperate deciduous forest b. prairie c. desert d. chaparral e. savannah
Having a concentration of nerve and sensory cells at the head end is referred to as:
1.bilateral symmetry 2.cephalization 3.coelomate 4.deuterostomate
Which is not true?
A. Eukaryotic genomes are more complex than prokaryotic genomes. B. Humans possess roughly 100,000 genes. C. Genes found in humans and other eukaryotic organisms appear to have resulted from transfer of genes from bacteria to eukaryotes. D. Genes are equally distributed between chromosomes and equally distributed along the length of a chromosome.