Question

Which is NOT characteristic of all mammals? a four-chambered heart that prevents mixing of oxygenated and deoxygenated blood. giving birth to live young (viviparous). Having hair during at least some period of life. Having glands to produce nourishing milk for offspring. Having a diaphragm to assist in ventilating the lungs. Which is NOT a true statement ? All chordates are vertebrates. All vertebrates are chordates. All protochordates are invertebrates. Echinoderms and chordates are deuterostomes. Sea squirts and lancelets are invertebrates. How are the nervous systems of Cniderians different from those of flatworms.? Cniderians have nerves but flatworms do not. Cniderians have brains but flatworms do not. Cniderians do not have brain but flatworms do. The nerves of flatworms are fundamentally different from the nerves of Cniderians Cniderians have bilaterally symmetrical nerve networks. A major difference between active and passive immunity is that active

Answer 1

63. E

Mammals domt necessary have a diaphragm to assist breathing rest al are mandatory.

64. A

All chordates arenot vertebrates

65 . C

Cnidarians do not have brains or neurons but flatworms do have not to learn activities but they remember previous actions.

66. C

Transfer of antibodies from mother to child is passive immunity.