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What does the armor including spines in some species offer?

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What are the newest, outer layers of secondary xylem called?

asked Dec 27, 2024 in Science by YaniraRhh59 (1.9k points)

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Because pathogenic bacteria typically cause disease by releasing exotoxins or endotoxins, they have potential use as what type of weapon?

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What is the permanent prevention of gamete production or release called?

asked Dec 27, 2024 in Science by JaninaStroh (2.1k points)

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Besides the inner membrane, where are many respiratory enzymes found?

asked Dec 27, 2024 in Science by RyderShupe77 (1.7k points)

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What type of behavioral rhythms are linked to the yearly cycle of seasons?

asked Dec 27, 2024 in Science by Diana66S829 (1.6k points)

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In animals, how many sets of chromosomes do gametes have?

asked Dec 27, 2024 in Science by AshleighTheo (1.8k points)

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Where are all hormones secreted into before entering the circulatory system?

asked Dec 27, 2024 in Science by Vern5918460 (2.5k points)

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At what time of the year can tornadoes occur?

asked Dec 27, 2024 in Science by NadiaN491716 (2.1k points)

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What's the name for the process where pollen is transferred to the ovules of a seed plant?

asked Dec 27, 2024 in Science by NadiaN491716 (2.1k points)

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What cells do lymphocytes originate from in the bone marrow?

asked Dec 27, 2024 in Science by FrankieJay1 (1.7k points)

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Which part of the plant is responsible for seed production?

asked Dec 27, 2024 in Science by MarcellaMack (1.7k points)

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Pigments are substances that absorb what?

asked Dec 27, 2024 in Science by DarbyKieran3 (2.0k points)

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What's the name for a cluster of genes, where one promoter serves adjacent genes?

asked Dec 27, 2024 in Science by GraceChaves1 (2.0k points)

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Many parasites have complex life cycles involving multiple ?

asked Dec 27, 2024 in Science by WilheminaBel (2.0k points)

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The infection-fighting complement system consists of roughly 30 proteins in?

asked Dec 27, 2024 in Science by AlmedaGooch6 (1.7k points)

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Sickle cell diseas is caused by what?

asked Dec 27, 2024 in Science by MarcellaFurp (1.7k points)

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What do you call an incomplete outer shell of an atom?

asked Dec 27, 2024 in Science by GeraldoSuffo (2.2k points)

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What makes a complete orbit around the earth once every 29 1/2 days?

asked Dec 27, 2024 in Science by FlorianRegis (2.0k points)

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Sharks are an example of an animal with sharp vision that is nonetheless unable to distinguish what?

asked Dec 27, 2024 in Science by LavadaKissne (2.4k points)

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