Biology, 13.03.2020 04:56 victoriazh2005
A key derived character of sharks and rays that distinguishes them from ray-finned fishes is
A) jaws and a swim bladder.
B) vertebrae.
C) calcified (hard) bones.
D) a skeleton made of cartilage
Answers: 1
Biology, 21.06.2019 15:00
6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.
Answers: 1
Biology, 22.06.2019 08:50
Iwill make you brainliest pleeze answer this fast i have to turn it in really soon brainliest promise easy question 6th grade ! a weather map shows a high pressure system with circles around it. what does this mean? a) an occluded front b) areas of equal altitude c) areas of equal pressure d) a stationary front
Answers: 2
Biology, 22.06.2019 15:30
Which of these would most likely be a stimulus that would cause the body to initiate feedback mechanisms a.) normal body temperature in an arctic environment b.) normal boy temperature in a tropical environment c.)light physical activity d.)low blood sugar
Answers: 2
A key derived character of sharks and rays that distinguishes them from ray-finned fishes is
A...
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