Biology, 10.03.2020 17:29, rachel2005smith
Damaged tissue releases chemicals that activate platelets and stimulate the formation of blood clots. Which of the following predictions about the activity of platelets best describes a positive feedback mechanism?(A) Activated platelets release chemicals that inhibit blood clot formation. (B) Activated platelets release signaling molecules that inhibit cell division in damaged tissue.(C) Activated platelets constrict the blood vessels, stopping blood flow.(D) Activated platelets release chemicals that activate more platelets.
Answers: 2
Biology, 21.06.2019 18:40, Bra1nPowers
Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?
Answers: 1
Biology, 22.06.2019 07:50, kkstone
One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei.
Answers: 3
Biology, 22.06.2019 14:00, chloejaylevesque
Atest cross can be used to -predict the phenotypes of a monohybrid cross -predict an unknown genotype of a purebred dominant plant -cross-breed dominant and recessive plants -give probabilities that a trait will appear
Answers: 1
Biology, 22.06.2019 19:30, sarahelisabeth444
Explain what is meant by a river’s load, and describe how the load is carried.
Answers: 1
Damaged tissue releases chemicals that activate platelets and stimulate the formation of blood clots...
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