Biology, 23.08.2019 05:30, gungamer720
Human hearts have pairs of two types of chambers; the atria (plural for atrium)and the ventricles. atria are where blood enters the heart and ventricles pump the blood out of the heart. the heart also takes in oxygen poor blood, pumps it through the lungs or gills (fish), where the blood is oxygenated, and then pumped through the rest of the body. identify which statement is correct.
a) fish have a three-chamber heart.
b) reptiles have a two-chamber heart.
c) mammals have a four-chamber heart.
d) none of these statements are correct.
Answers: 2
Biology, 22.06.2019 00:00, tylerchitwood211
The table below shows the number of foot bones in some horse fossils. horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s
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Biology, 22.06.2019 12:00, calebabaltimore
Why has two different alleles for the same trait?
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Biology, 22.06.2019 14:30, angelrenee2000
The table above shows five different types of chromosomal abnormalities that can occur during meiosis. they result in either an individual having too many or too few chromosomes in their genome. what is the most likely cause of these chromosomal abnormalities?
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Biology, 22.06.2019 18:30, yaneiryx5476
Which rate indicates the number of children that would be born per women if she were to live to the end of her child-bearing years
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Human hearts have pairs of two types of chambers; the atria (plural for atrium)and the ventricles....
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