Answers: 1
Biology, 21.06.2019 21:30
Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1
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Biology, 22.06.2019 15:50
The structure of a dna molecule is best described as a. one long strand of nucleic acids b. two strands of dna nucleotides joined by hydrogen bonds c. two strands of amino acids joined by hydrogen bonds d. one long strand of amino acids
Answers: 1
Biology, 23.06.2019 01:00
In the image layer a is the topmost layer layer c contains fossils from the precambrian era larrabee contains dinosaur fossils and layer a contains fossils of mammals which two statements are supported by this evidence
Answers: 2
Biology, 23.06.2019 03:30
Afruit fly population has a gene with two alleles, a1 and a2. tests show that 70% of the gametes produced in the population contain the a1 allele. if the population is in hardy-weinberg equilibrium, what proportion of the flies carry both a1 and a2? a) 0.49b) 0.7c) 0.42d) 0.21
Answers: 2
What could a human living now and a dinasour living millions of years ago have in common ?...
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