Biology, 17.05.2021 18:10 bvargas786p7aa8y
Which of the following best explains a method by which plants use long-distance
signaling to carry out cell communication?
1. Gas hormones are released and travel through the air to reach their target cells.
2. Growth factors are released into extracellular fluid toward target cells via
paracrine signaling.
3. Molecules travel down a concentration gradient to target cells through
plasmodesmata.
4. Neurotransmitters carry chemical signals from dendrites to axons across
synapses.
Answers: 1
Biology, 21.06.2019 19:40
Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.
Answers: 1
Biology, 21.06.2019 20:30
Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?
Answers: 2
Which of the following best explains a method by which plants use long-distance
signaling to carry...
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