Biology, 17.01.2021 01:00 hiplikedyani
Tim scraped his knee during a fall and it needs to be repaired. The closest skin cells begin sending out growth factors
through paracrine signaling to tell all nearby skin cells to start replicating to repair the damaged area.
What are the next steps once the message is sent?
O The growth factors are packaged into a vesicle and secreted from a cell that acts upon all nearby cells. The cells
start dividing
O The growth factors are packaged into a vesicle and secreted from a cell that acts upon target cells near and far. The
cells start mitosis.
O The growth factors are packaged into a vesicle and secreted from a cell that acts upon only a target nearby cell. The
cell starts swelling up.
O The growth factors are packaged into a vesicle and embedded into the plasma membrane where it is detected by
other cells. The cells produce more proteins.
Answers: 3
Biology, 21.06.2019 16:10
Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.
Answers: 1
Biology, 22.06.2019 02:10
Scenario #2 in 2001, a population of 2,500 poison dart frogs lived in the amazon rain forest. due to increased deforestation, the population dwindled to 25 frogs in 2019. new government regulations were enacted in 2022, successfully putting an end to the deforestation of the amazon rain forest. once deforestation was stopped, the poison dart frog population was able to recover. by 2050, the population reached 8,000 frogs, of that population, 20 are homozygous recessive for being spotted (ss genotype). q2- ? q- p- p2- 2pq-
Answers: 2
Biology, 22.06.2019 06:50
Which organelle breaks down sugar molecules that supply energy to the cell ?
Answers: 2
Biology, 22.06.2019 13:30
Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil
Answers: 1
Tim scraped his knee during a fall and it needs to be repaired. The closest skin cells begin sending...
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