Biology, 08.12.2020 01:00 talanna394
The smallest structural unit of an organism that consists of one or more nuclei, cytoplasm, and various organelles is called a
organ system
organ
tissue
cell
Answers: 2
Biology, 21.06.2019 15:30
Which of the following is not a way in which a vascular plant's xylem and phloem are similar?
Answers: 2
Biology, 21.06.2019 20:00
Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)
Answers: 1
Biology, 21.06.2019 21:00
Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+
Answers: 1
Biology, 21.06.2019 23:00
The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck β often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual β especially cells from the crumbly dftd tumors β to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.
Answers: 3
The smallest structural unit of an organism that consists of one or more nuclei, cytoplasm, and vari...
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