Invertebrates

Question 1

What domain is the kingdom Animalia from?

Answer 1

Eukarya

Question 2

550 mya, (in)vertebrates, can reproduce sexually, gametes, diploid or polyploid, and multicellular heterotrophs are general characteristics of what?

Answer 2

Kingdom Animalia

Question 2

Are there any single-celled animals?

Answer 2

No

Question 3

What species have bilateral symmetry?

Answer 3

The phylum chordata, arthropoda, and worms

Question 4

Gametes are gained via what?

Answer 4

Meiosis

Question 5

What species have radial symmetry?

Answer 5

Jellyfish, hydra, sea anemones, coral, star fish, sea urchins, brittle stars, and sand dollars

Question 6

What species have asymmetry?

Answer 6

Sponges

Question 7

Cephalization is not seen in all animals but tends to be seen in animals with what symmetry?

Answer 7

Bilateral symmetry

Question 8

Simple animals have an incomplete digestive system, where they have a mouth but no anus. This is called a what type of body plan and where does waste travel?

Answer 8

Sac-type body plan and waste travels back through the mouth

Question 9

Which two phyla have incomplete digestive systems?

Answer 9

Cnidaria and Platyhelminthes

Question 10

A complete digestive system is called a what body plan?

Answer 10

Tube-within-a-tube body plan

Question 11

The spine of vertebrates evolved from what worms?

Answer 11

Segmented worms

Question 12

A subdivided body plan into individual segments is called what?

Answer 12

Segmentation

Question 13

The phylum Porifera is made up of what species and how many?

Answer 13

Approximately 7,500 species of sponges

Question 14

No organs, usually no symmetry, no mouth or anus, sessile filter feeders, and secrete a “skeleton” are characteristics of what phylum?

Answer 14

Porifera

Question 15

The “skeleton” secreted by sponges is made of what and is reinforced with shark what for defense?

Answer 15

Collagen and spicules

Question 16

Spicules can be made from what three things?

Answer 16

Glass, calcium carbonate, or protein

Question 17

The phylum Cnidaria consists of what species and how many are there?

Answer 17

Approximately 10,000 species of jellyfish, hydra, sea anemones, and coral

Question 18

Do all cnidarians have stingers and are venomous?

Answer 18

Yes

Question 18

Do Cnidaria have an incomplete digestive system?

Answer 18

Yes

Question 19

The most deadly animal venom in the world is from what animal? What is its nickname?

Answer 19

The box jellyfish, or the sea wasp

Question 19

What four things cause coral bleaching? What is the main cause?

Answer 19

Overexposure to sunlight, extreme low tides, change in ocean temperature, and runoff and pollution. The main cause is change in ocean temperature

Question 20

The phylum Platyhelminthes is made up of what type of worm and how many species?

Answer 20

Approximately 20,000 species of flatworms

Question 21

Where are flatworms found?

Answer 21

Streams, oceans, and moist leaf litter

Question 22

What are examples of the phyla Platyhelminthes?

Answer 22

Liver flukes, blood flukes, and tapeworms

Question 23

Flatworms are either what or what system parasites?

Answer 23

Digestive or circulatory

Question 24

The most common tapeworm is the Hymenlepis nana, or what?

Answer 24

Dwarf tapeworm

Question 25

Human liver and blood flukes kill how many?

Answer 25

Millions

Question 25

The phylum Nematoda has how many species and is made up of what?

Answer 25

Approximately 28,000 species of roundworms/threadworms

Question 26

How many possible species are there of roundworms/threadworms?

Answer 26

One million plus species

Question 27

Most nematodes are parasitic but how many species infect humans?

Answer 27

30 species

Question 28

Do the worms in the phylum Nematoda have a complete or incomplete digestive system?

Answer 28

Complete

Question 29

Some species of what phylum are important for soil ecology?

Answer 29

Nematoda

Question 30

How many people are infected worldwide with hookworms?

Answer 30

600 million

Question 30

What are examples of the phylum Nematoda?

Answer 30

Hookworms, pinworm, and trichina

Question 31

Having a mantle and being soft-bodied are two characteristics of what phylum?

Answer 31

Mollusca

Question 32

How many species of mollusks are there?

Answer 32

Approximately 85,000 species

Question 32

In gastropods, the mantle can be one of two things? What are the two things?

Answer 32

Can secrete the shell or be purely vestigal

Question 33

What are the three classes of the phylum Mollusca?

Answer 33

Gastropoda, Cephalopoda, and Bivalvia

Question 33

Gastropods are predominantly vegetarians. How many species are there and what are the examples?

Answer 33

60,000-80,000 living species of snails and slugs

Question 34

How many species of cephalopods are there and what are examples?

Answer 34

Approximately 11,000 species of octopuses, squids, nautilus, and more

Question 34

How many species of bivalves are there and what are examples of them?

Answer 34

Approximately 9,200 species of clams, scallops, oysters, and mussels

Question 35

What are two characteristics of the class Bivalvia?

Answer 35

Two-part hinged shell and sessile filter feeders

Question 36

The phylum Annelida has how many species and what type of worms?

Answer 36

Approximately 17,000 species of segmented worms

Question 37

What are examples of the phylum Annelida?

Answer 37

Earthworms, leeches

Question 38

While most annelids live in freshwater or seawater, some live in the what?

Answer 38

Soil

Question 39

The phylum Annelida has what that help them move through the soil? Earthworms have how many per segment

Answer 39

Setae and 4 per segment

Question 40

Earthworms are hermaphroditic but when they reproduce sexually, the what is used to secrete mucus to help stick together and creates a cocoon for the eggs?

Answer 40

Clitellum

Question 41

While we know there are approximately 1,870,000 species of arthropods, how many could there be?

Answer 41

5 to 40 million

Question 42

Arthropods make up what percent of all animal species?

Answer 42

85%

Question 43

Spiders, insects, crustaceans, scorpions, ticks, centipedes, and millipedes are examples of what phylum?

Answer 43

Arthropoda

Question 43

Spiders and crustaceans both have approximately how many species?

Answer 43

40,000 species

Question 44

While we know there are 1.5 million species of insects, there could be up to how many species?

Answer 44

30 million species

Question 45

How many centipede and millipede species are there?

Answer 45

Approximately 8,000 species

Question 46

How many species of scorpions are there?

Answer 46

1,400 species

Question 47

How many tick species are there?

Answer 47

100+

Question 48

Malpighian tubules, spiracles, six legs, and most can fly are examples of what class?

Answer 48

Insecta

Question 49

What three body parts do insects have?

Answer 49

Head, thorax, abdomen

Question 50

In insect spiracles, what diffuses in and out?

Answer 50

CO2 out, O2 in

Question 51

The Loxosceles reclusa or violin spider, is more commonly known as what?

Answer 51

Brown recluse

Question 52

The phylum Echinodermata is how many species and what are examples?

Answer 52

Approximately 6,000 species of sea lilies, star fish, brittle star, sea cucumber, sea urchin, and sand dollars

Question 53

Having radial symmetry based on 5, spiny-skinned, and marine species are characteristics of what phylum?

Answer 53

Echinodermata

Question 54

What is a unique trait of echinoderms?

Answer 54

A water-vascular system

Question 55

A hydraulic system used by echinoderms for locomotion, food and waste transportation, and respiration; canals connecting numerous tube feet is what?

Answer 55

A water-vascular system

Question 56

Echinoderms can regenerate through what but can also sexually what?

Answer 56

Asexual fragmentation and reproduce