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Biology, 21.07.2019 08:00, PastelHibiscus
Despite their differences in appearance, all bony fish have common ancestors. their fins develop from similar structures and usually have a prescribed number of bones. because of this, the large rudder-like dorsal fin of a sailfish, the poisonous dorsal fin of a catfish, and the tiny reduced dorsal fin of a puffer fish are said to be structures. a) vestigial b) analagous c) homologous d) evolutionary
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Biology, 21.06.2019 13:30, swaggernas
Plzz hurry im being timed during times of vigorous physical activity, muscles require a constant supply of oxygen. how does the body respond to these needs? a. breathing rate and heart rate both decrease. b. breathing rate and heart rate both increase. c. heart rate decreases, but breathing rate remains stable. d. breathing rate increases, but heart rate remains stable.
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Despite their differences in appearance, all bony fish have common ancestors. their fins develop fro...
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