11. what phrase best describe an invertebrate animals?
a. with backbone
b. presence of spinal cord
c. with out backbone
d. with tail
12. which of the following groups of animals is echinoderms?
a. spider,tick,mite, scorpion
b. octopus, cuttlefish, snail,squid
c.starfish,sand dollar,sea urchin,sea cucumber
d. jellyfish,corals,hydra,sea anemone
13.which of these four animals is identified as an invertebrate by a pet lover
a. dog
b. cat
c. bee
d. monkey
a. with backbone
b. presence of spinal cord
c. with out backbone
d. with tail
12. which of the following groups of animals is echinoderms?
a. spider,tick,mite, scorpion
b. octopus, cuttlefish, snail,squid
c.starfish,sand dollar,sea urchin,sea cucumber
d. jellyfish,corals,hydra,sea anemone
13.which of these four animals is identified as an invertebrate by a pet lover
a. dog
b. cat
c. bee
d. monkey
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12.)C
13.)C (I’m not sure)
Explanations:
11.
An invertebrate is an animal without a backbone. In fact, invertebrates don't have any any bones at all! Invertebrates that you may be familiar with include spiders, worms, snails, lobsters, crabs and insects like butterflies. However, humans and other animals with backbones are vertebrates.
12.)
echinoderm, any of a variety of invertebrate marine animals belonging to the phylum Echinodermata, characterized by a hard, spiny covering or skin. ... Sea cucumbers are elongated soft-bodied echinoderms, while sea urchins are globular and spiny. The adult sea lily is sessile, using tentacles growing from its arms to feed.
13.)
Invertebrates are animals that neither possess nor develop a vertebral column, derived from the notochord. This includes all animals apart from the chordate subphylum Vertebrata. Familiar examples of invertebrates include arthropods, mollusks, annelid, and cnidarians.
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Answer:
11. B/C
12. D
13. C
Explanation: