Biology, 10.12.2019 23:31, scottmichetti
The bacterium that causes tuberculosis can be expelled from the lungs by a cough and remain viable in the air for an hour or more. if a person inhales the bacteria from the air, what type of transmission has occurred?
(a) indirect contact
(b) airborne
(c) waterborne
(d) bodily fluid
(e) foodborne
Answers: 2
Biology, 21.06.2019 19:30, AaronEarlMerringer
Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.
Answers: 1
Biology, 22.06.2019 16:30, officialrogerfp3gf2s
Aplant with dark red flowers is crossed with a plant with white flowers. all of the offspring have dark red flowers with white spots. the alleles got flower color in this plant are both dominant both recessive codominant incompletely dominant
Answers: 1
Biology, 22.06.2019 19:00, lnbrown9018
Which of the following is the best definition of a eukaryota? a. a one-celled organism that does not have a membrane-bound nucleus b. a one-celled organism that does not have a cell wall c. an organism whose cells each contain a membrane-bound nucleus d. an organism whose cells each have a cell wall
Answers: 2
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