Biology

Which characteristic of life distinguishes a fire in flowering plant
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B and T cells of the immune system have unique B and T cell surface receptors (respectively) as shown above. What is the function of the variable and the constant regions of the B and T cell receptors of the vertebrate immune system? A)There will be an increase in inflammatory response during an innate immune response. B)There will be a decrease in allergic responses on the part of the individual to allergens in the environment. C)There will be an increase in variety of the shape of the B and T cell receptors, allowing them to recognize and destroy more pathogens. D)There will be a decrease in pathogens that can enter the body, resulting in a decrease of antibodies present and circulating in the blood.
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Why can the geologic time scale change?
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Explain in detail the life cycle of the metamorphosis of amphibians.
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HELP PLS!!!!!!!!!!!!A good environmental decision _____.has no ecological costsdiscounts the environmental costsshould have more benefits than costshas only environmental benefitsILL GIVE 40 POINTS TO WHOME OVER IS RIGHTHELPPPPPPPPPPPPPP MEEEEEEEEEEEEEEEEEEEEEEE
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Pea plant cross: PpYy x PpYyHow many possible allele combinations can each parent produce?What are they?
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Which characteristic makes fungi similar to plants?
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how have pandemics helped with pollution
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The intructions for building proteins necessary for all like functions are coded within an organism's genetic code. The genetic code of an organism consists of codons, or sequence of three nucleotides, that each code for a specific amino acids. Amino acids are the building blocks of protein.
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DNA and RNA are both important nucleic acids. They have similarities and differences structurally.Use the Venn diagram to compare the two nucleic acids. Drag each characteristic to the correct location.ITEM BANK: Move to BottomDeoxyribose sugarRibose sugarSugar, phosphate, nitrogen baseThroughout the cell
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why is a seed vault for the world important. 4 reasons why.
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which substance is a reactant in photosynthesis
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need help with this
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I WILL MAR BRAINLIEST 20 min left PLEASEEEEEE HELPPPPPPPPPPPPPPHURRRRRRRRRRRRRYYYYYYYYY PLEASEEEEEEEEEEEEEEWhich term describes this reaction?A skeletal diagram of a branched chain of carbons with 1 carbon bonded to O H; right arrow with H 2 S O 4 above and heat below, skeletal diagram with 2 carbons double bonded and branches above left and right and below left and right.additioncondensationeliminationsubstitution
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Summary about dams. PLEASE
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"But some creatures have just a single cell, like an amoeba. Theyare called unicellular organisms. Other creatures, like us humanbeings, are collections of cells. These are called multicellularorganisms. Multicellular organisms can range in size from brownalgae to large animals like elephants and whales, which havetrillions of cells."What can be concluded about cells based on this information?A Unicellular organisms were once part of collections of cells.B. Cells in multicellular organisms are stronger than unicellular organisms.C. Cells can only support life if they are part of a multicellular organism.D. Some cells can support life independently. Other cells support life collectively
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i need some help plz
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HELP ASAP!!!! Describe a habitat in ur community that would support non vascular plant!!!!
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In a sample of bacterial DNA, 14% of the nitrogenous bases are thymine. About what percentages are the other nitrogenous bases?A. 36% guanine, 36% adenine, 14% cytosine.B. 43% guanine, 0% adenine, 43% cytosine.C. 14% guanine, 14% adenine, 14% cytosine.D. 36% guanine, 14% adenine, 36% cytosine.
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Giraffes with short necks lived in arid regions and fed on grasses. Over time, grasses disappeared, forcing giraffes to eat from trees. Mutations in the genome led to some giraffes inheriting the trait for long necks. Over time, there were more giraffes with long necks in the region. What are the two reasons for the change in the population of giraffes?
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How do the data that Samantha obtained help explain the way that the body maintains homeostasis during exercise? Include the activities of at least three body systems in your explanation.
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Which of the following conclusions is suggested by the map
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Which of the following groups of parrots is most likely in Hardy-Weinberg equilibrium? A. A group with 50 DD parrots, 30 Dd parrots, and 20 dd parrots. B. A group with 30 DD parrots, 40 Dd parrots, and 30 dd parrots. C. A group with 25 DD parrots, 50 Dd parrots, and 25 dd parrots. D. A group with 50 DD parrots, 25 Dd parrots, and 25 dd parrots.
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Why do birds have no urinary bladders?
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