Chinese cabbage, brussels sprouts, and kohlrabi are all derived from a single species via artificial selection.
Answer the following statement true (T) or false (F)
True
Humans carry out artificial selection when they breed plants and animals and select for desired traits.
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A modified acid-fast stain is performed on lung tissue. The most likely organism that will be observed is:
a. N. fowleri. b. Mansonella streptocerca. c. G. lamblia. d. Cryptosporidium spp.
All cells have what three following things
a. Mitochondria, enzymes, and nucleic acid b. Cell membrane, cytoplasm, DNA c. Bacteria, microtubules, organelles d. RNA, DNA, nucleus.
Soon after the introduction of antibiotics, resistant strains of bacteria that could grow in the presence of particular antibiotics began to evolve. Researchers develop new antibiotics, only to see resistant bacterial strains evolve within a few years. Which of the following explains why resistant strains of bacteria can evolve so quickly?
A. Bacteria have a short generation time. B. Bacteria can transfer plasmids containing resistance genes via conjugation. C. Horizontal gene transfer. D. Bacteria have a short generation time and can transfer plasmids containing resistance genes via conjugation. E. Bacteria have a short generation time and can transfer plasmids containing resistance genes by horizontal gene transfer mechanisms such as conjugation.
The entertaining seals of marine attraction parks are:
a. sea lions. b. harbor seals. c. elephant seals. d. fur seals. e. harp seals.