Animals, Animals, Animals

Question 1

Bacteria

Answer 1

Simple unicellular organisms

Question 2

Archaea

Answer 2

Simple unicellular organisms that often live in extreme environments

Question 3

Protista

Answer 3

Unicellular and more complex than bacteria or archaea

Question 4

Fungi

Answer 4

Unicellular or multicellular and absorb food

Question 5

Plants

Answer 5

Multicellular and make their own food

Question 6

Animals

Answer 6

Multicellular and take in their own food

Question 7

Nutritional mode

Answer 7

Heterotrophs
Ingest organic material
Digest within bodies

Question 8

Metazoan

Answer 8

Includes all animals that have a body composed of cells differentiated into tissue and organs usually includes a digestive cavity

Question 9

What is the ancestor of animals?

Answer 9

Choanoflagellate

Question 10

Chanoflagellate

Answer 10

It is not an animal, it’s a microbe that feeds off of bacteria

Question 11

Evolution from choanoflagellates happen around…

Answer 11

700 mya

Question 12

First multicellular eukaryotic fossil animals happened around

Answer 12

630-540 million years ago

Question 13

First animals were mostly soft-bodied…

Answer 13

Multicellular eukaryotes

Question 14

The Cambrian explosion was about…

Answer 14

535-252 mya

Question 15

How many phyla evolved from the Cambrian explosion?

Answer 15

20-35

Question 16

After the Cambrian explosion, what was developed?

Answer 16

Predators and prey
Claws, body armor, sharp spines, etc.

Question 17

Bilateral symmetry

Answer 17

Animals have two sides

Question 18

Complete digestive tract

Answer 18

Mouth on one end and anus on the other

Question 19

Evolution of chordates happened…

Answer 19

590 mya

Question 20

Vertebrates were developed…

Answer 20

525 mya

Question 21

Tetrapods were developed…

Answer 21

400 mya

Question 22

Chordate

Answer 22

Animal in the phylum chordata

Question 23

What are the four homologous characters of chordate?

Answer 23

1. Notochord
2. Dorsal hollow nerve cord
3. Pharyngeal slits
4. Post-anal tail

Question 24

Vertebrate

Answer 24

Chordates with backbones: all animal species within the subphylum vertebrata
Ex. Jawless fishes, Jawed fishes like sharks, rays, ratfish

Question 25

Tetrapod

Answer 25

Four limbed animals evolved from sarcoptyergian fish (lobe-finned fishes)
Includes: amphibians, reptiles, mammals