Biology, 17.06.2020 18:57, TropicalFan
Explain how malaria and sickle cell anemia are selection pressures that stabilize the sickle cell allele frequency in a population
Answers: 1
Biology, 22.06.2019 01:30, ayoismeisalex
Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.
Answers: 1
Biology, 22.06.2019 11:30, cr22estiles
What would most likely happen if green plants were exposed to longer days of sunlight? a. the mitochondria would produce less energy . b. the chloroplasts would produce more energy. c. the cell wall would become thicker. d. the vacuoles would quickly shrink. b. the chloroplasts would produce more energy.
Answers: 3
Biology, 22.06.2019 14:50, tabbywitherite84
Involving transcription and translaton. explain the causes and effects of damage to the genetic code.
Answers: 1
Biology, 22.06.2019 16:00, maddie7155
You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars
Answers: 1
Explain how malaria and sickle cell anemia are selection pressures that stabilize the sickle cell al...
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