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REVIEW EXAM SCI Sem 1 22-23
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What does it mean by planarians are free-living flatworms?
They feed on dead ,decaying materials and attack smaller animals than them.
What are the characteristics of Bilateral symmetry
Larger, more complex, move more quickly, have sense organ in the front end
What are the characteristics of radial symmetry?
Do not have distinct front or back ends, live in water, moved along the water currents/creep along the bottom
How does a scavenger obtain food?
It glides into its prey, flows out a digestive juice . The juice break down the food. Then it sucks up the partly digested bits
Which organs does a crustacean and mollusk use to obtain oxygen?
Gills
Do crustacean animals undergo metamorphosis?
Yes
Does a lion undergo metamorphosis?
No
Which crayfish appendages that become flippers for swimming?
Swimmeret
Do flies have sucking mouthparts?
No, they have lapping mouthparts
What is the advantage of closed circulatory system?
It enables blood to move around the body of an animal much more faster.
Which body plan of a cnidarians that reproduce asexually?
Polyp
How do sponges reproduce asexually?
Small new sponges grow from the side of an adult sponge. The buds break free and begin life on their own.
Which structure of a Sponge that beat back and forth, moving water through the sponge and trapping food?
Collar cell
How do we classify animals?
Based on animal's body structure, the way the animal develops, and its DNA
TRUE/FALSE. A grasshopper undergo complete metamorphosis
False
TRUE/FALSE. A dragonflies undergo gradual metamorphosis
True
TRUE/FALSE. A beetles undergo gradual metamorphosis
False
Which two phyla of invertebrates that reproduce by sexually only?
Mollusks and Arthropods
TRUE/FALSE. Earthworms stay in moist soil during hot days to keep their conditions stable
TRUE
Which group of Arthropods is a shrimp categorize into?
Crustaceans
List the levels of organization of an animal from the smallest to the largest
Cells-Tissue-Organ-Organ system
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