Animal Kingdom

Question 1

Vertebrates

Answer 1

has backbone

Question 2

Invertebrates

Answer 2

no backbone

Question 3

Consumer

Answer 3

organism that eats other organisms

Question 4

Ganglion

Answer 4

a mass of nerve cells

Question 5

Gut

Answer 5

the digestive tract

Question 6

Coelom

Answer 6

body cavity that contains internal organs

Question 7

Bilateral Symmetry

Answer 7

two sides of the body mirror each other, it has equal right and left sides, complex.

Question 8

Radial Symmetry

Answer 8

body is organized around the center.

Question 9

Asymmetry

Answer 9

not organized; simple

Question 10

Sponges

Answer 10

They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them

Question 11

Cnidarians

Answer 11

an aquatic invertebrate animal of the phylum Cnidaria, which comprises the coelenterates.

Question 12

Flatworms

Answer 12

are found in marine, freshwater, and even damp terrestrial environments. Most are free-living forms, but many are parasitic on other animals.

Question 13

Roundworms

Answer 13

They are a diverse animal phylum inhabiting a broad range of environments.

Question 14

Mollusks

Answer 14

an invertebrate of a large phylum which includes snails, slugs, mussels, and octopuses. They have a soft unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell.

Question 15

Open circulatory system

Answer 15

pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells.

Question 16

Closed circulatory system

Answer 16

have the blood closed at all times within vessels of different size and wall thickness.

Question 17

Annelid worms

Answer 17

are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.

Question 18

Exoskeleton

Answer 18

a rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.

Question 19

Compound eye

Answer 19

an eye consisting of an array of numerous small visual units, as found in insects and crustaceans.

Question 20

Antenna

Answer 20

either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods.

Question 21

Metamorphosis

Answer 21

the process of transformation from an immature form to an adult form in two or more distinct stages.

Question 22

Endoskeleton

Answer 22

an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates.

Question 23

Water vascular system

Answer 23

a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels.