Whereas in mammals the heart, which has four chambers, two ventricles and two atria, delivers oxygenated blood to the organs by one channel while the other directs blood to the lungs for re-oxygenation, the reptiles have three-chambered hearts with two ventricles and only one atrium.
Answers: 3
Biology, 22.06.2019 18:20, IsabelAyshi
The term life cycle includes the entire process of: adults defending their young providing a conducive environment adults producing gametes fertilization the growth of the offspring to adulthood
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Biology, 22.06.2019 21:30, destinysmithds7790
Which of the following is true about the introduction of a non-native species to an environment? (a) they usually adapt quickly so they can have a positive affect on the environment. (b) they can disrupt the environment and cause much damage and devastation to native species. (c) they usually become predators in a food chain and to keep prey populations under control. (d) because the native species are better-adapted to the environment, the non-native species always end up dying out.
Answers: 1
Whereas in mammals the heart, which has four chambers, two ventricles and two atria, delivers oxygen...
Mathematics, 24.12.2019 11:31
Mathematics, 24.12.2019 11:31
Mathematics, 24.12.2019 11:31