Biology, 12.12.2020 16:10 0spholbrooks
Which statement describes the first step in soil formation?
A. Small, simple plants begin to grow.
B. Humus begins to mix with sediment.
C. Organic material starts decomposing.
D. Parent rock breaks into smaller pieces.
Answers: 1
Biology, 22.06.2019 04:00
Regarding most of the narrator’s story, which word best describes the tone?
Answers: 1
Biology, 22.06.2019 08:50
Sort the examples by the type of diversity that they exhibit a park has 80 species of trees red, yellow, and orange bell peppers are all members of the same species individuals of the same lizard species have different mating strategies. five different bird species are at a bird feeder. genetic diversity species diversity
Answers: 1
Biology, 22.06.2019 13:20
Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).
Answers: 2
Biology, 22.06.2019 13:50
18. how do the cells in meiosis differ from the cells in mitosis?
Answers: 2
Which statement describes the first step in soil formation?
A. Small, simple plants begin to grow.<...
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