Biology, 28.01.2020 02:31 ayoismeisalex
Acell expresses a transmembrane protein that is cleaved at the plasma membrane to release an extracellular fragment. the fragment binds to receptor proteins on nearby cells and activates signaling pathways resulting in altered gene expression patterns in the cells. what form of intercellular signaling does this represent? (a) contact-dependent signaling(b) paracrine signaling(c) endocrine signaling(d) autocrine signaling
Answers: 2
Biology, 21.06.2019 15:00
According to the theory of punctuated equilibrium, at what rate does speciation occur? species change depending on the rate of natural selection. after periods of stasis, new species evolve relatively rapidly. species change slowly and eventually form new species. some species change quickly and others change slowly to balance the overall rate.
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Biology, 22.06.2019 05:40
Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion
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Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs
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Look at the photo of the leaf, which term best describes this leaf ? a-simple.b-parallel.c-lobed.d-tooth.
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Acell expresses a transmembrane protein that is cleaved at the plasma membrane to release an extrace...
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