Urgent please help find correct answers!!!! Answer whether the following stateme
ID: 98170 • Letter: U
Question
Urgent please help find correct answers!!!! Answer whether the following statements are TRUE or FALSE ___ Invertebrates are animals that have a backbone ___ snakes are marsupial ___ Primates have hands and feet for grasping ___ Arthropods are invertebrates that have an exoskeleton ___ humans and chickens are amniotes ___ elephants are mammals sharks have cartilage skeletons ___ birds are mammals The process by which different layers of embryonic tissues are formed is called a) gastrulation b) cleavage c) metamorphosis Crustaceans include a) Octopus b) Crabs c) Sponges d) Jelly fish Which of the following belong to the phylum Calcarea and ? a) spiders b) cats c) sponges d) none of the above Osteoichthyan have skeleton made of ___ whereas chondrichthyans have skeleton made of ___ a) calcium phosphate ___cartilage b) cartilage ___calcium phosphate Which of the following belong to the phylum Cnidarians? a) jelly fish b) clams c) lobster d) mosquitoExplanation / Answer
21) The animals that have backbones are called vertebrates. Animals that lack backbones are called as invertebrates. So, the statement given in the question is false.
22) Marsupials are animals that give birth to incompletely developed offsprings that develop within a pouch like kangaroo. Snakes are not marsupials. So, the statement given in the question is false.
23) Primates have hands and feet for grasping. This statement is true.
24) Arthropods are characterised by the presence of exoskeleton. They do not have backbones. So, the are invertebrates. Therefore, the given statement is true.
25) The embryonic development of humans and embryos need amniotic sac. They are therefore called as amnios. The given statement is true.
26) Elephants give birth to their young ones (viviparous) and they feed them with mother's milk. They are therefore mammals. So, the given statement is true.
27) The skeleton of shark is made of cartilage. So, the statement is true.
28) Birds are oviparous. They are not mammals. So, the given statement is false.
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