Biology, 23.02.2021 21:50 emilaw7823
After what age do the bone eating cells get the upper hand on the bone building cells, making the bones more fragile? *
20 years old
40 years old
50 years old
30 years old
60 years old
Answers: 2
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Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.
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What is a photon? a. part of a ribosome b. a light particle c. a carbon dioxide molecule d. part of a chloroplast b. a light particle
Answers: 2
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