Biology, 05.10.2020 02:01 brittneyrost3722
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1) Observation: a teenager observed that he had three new pimples the night after eating a chocolate bar.
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Hypothesis:
2) Observation: A mother observed that the plant that she accidentally spilled salt water on was wilted.
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3) Observation: A little boy observed the leaves on trees changed colors when the temperature was lower.
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Answers: 3
Biology, 21.06.2019 21:00, natasniebow
Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria
Answers: 1
Biology, 22.06.2019 06:00, dshood6599
Adrought killed all the plants in an agricultural farmland. gradually, due to wind and some birds for. nearby areas, new plants started sprouting l. what stage of succession was taking place in the farmland? a) competition b) nudation c) ecesis d) reaction e) migration
Answers: 2
Biology, 22.06.2019 09:00, maxicanofb0011
Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm
Answers: 1
I’ll mark as BRANLIEST
1) Observation: a teenager observed that he had three new pimples...
1) Observation: a teenager observed that he had three new pimples...
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