18. Why is our nervous system important?
1 point
It absorbs the nutrients needed by our body.
It removes waste from the body.
It controls the other body systems so that they work properly.
It protects our body from harmful external elements.
Other:
19. What scientific term is used to describe animals without backbone?
1 point
amphibians
invertebrates
reptiles
vertebrates
Other:
20. The following practices contribute to the decreasing population of vertebrates EXCEPT________.
1 point
designation of wildlife sanctuaries
illegal hunting
habitat destruction
killing animals
21. Which group of animals are examples of mollusks?
1 point
snails, clams, squid, oyster
starfish, sea urchins, sea cucumber, sand dollarsb
ants, spiders, shrimps, centipedes
hydras, jellyfish, sea anemones, corals
22. Which group of animals is covered with dry skin and hard scales that prevent the loss of water from the body through evaporation?
1 point
mammals
amphibians
reptiles
fishes
23. Which group of animals nourishes their young with milk from the mammary glands?
1 point
mammals
amphibians
reptiles
fishes
24. Which group of animals is cold-blooded vertebrate that can live both in land and in water and breathe through their skin and lungs?
1 point
mammals
fishes
amphibians
reptiles