Biology, 22.07.2019 08:30 jruiz33106
The picture above is of a plant's xylem and phloem. the xylem transports water from the roots to the leaves. the phloem transports food from the leaves made by photosynthesis to the rest of the plant. this vascular bundle (xylem and phloem) is similar to a human tissues. place the xylem and phloem with the human tissues that is most similar to it. the statement is to be read as ": " reads "is to" and ": : " reads "as". ex: kitten: cat : : puppy: dog can be read as "kitten is to cat as puppy is to dog".
Answers: 1
Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 2
Biology, 22.06.2019 02:00
For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system
Answers: 2
Biology, 22.06.2019 07:00
Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome
Answers: 2
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