Exam three lecture 18

Question 1

-eukaryotic
-multi cellular
-heterotrophic
-specialized tissues that allow them to adapt to their environment

Answer 1

Character traits of an animal

Question 2

What are the forms of animal symmetry

Answer 2

-no symmetry
-radial symmetry
-bilateral symmetry

Question 3

Example of radial symmetry

Answer 3

sea star

Question 4

Example of bilateral symmetry

Answer 4

a fly

Question 5

having a concentration of neurobiology in the front of the head/ allows the animals to sense the environment ahead of it as it moves

Answer 5

Cephalization

Question 6

cephalization is believed to also be an adaptation for____

Answer 6

processing food

Question 7

Body units repeated along the central body axis but modified for function depending on location

Answer 7

Segmentation

Question 8

Segmentation is most common in animals with ____ symmetry

Answer 8

Bilateral

Question 9

Radially symmetric animals have ____

Answer 9

2 germ layers

Question 10

Animals with 2 germ layers are

Answer 10

Diploblastic (Two embryos)

Question 11

Bilaterally symmetric animals have _____ germ layers

Answer 11

3 germ layers

Question 12

Animals with 3 germ layers are ____

Answer 12

Triploblastic

Question 13

Triploblastic:

Answer 13

Ectoderm, endoderm, and mesoderm

Question 15

Where do bodily openings form first in Bilateral embryos

Answer 15

the embryo

Question 16

The blastopore becomes the embryos mouth

Answer 16

Protostome

Question 17

The blastopore becomes the embryo’s anus

Answer 17

Deuterostome
Examples:
sea-stars and sea cucumbers

Question 18

Provides cushioning
internal cavity
increased surface area that available

Answer 18

Coelom

Question 19

_____are acoelomate

Answer 19

Flatworms

Question 20

______are pseudocoelomate

Answer 20

Roundworms

Question 21

_______are coelomate

Answer 21

Earthworms

Question 22

False coelom

Answer 22

psuedocoelomate

Question 23

acoelomate

Answer 23

no coelom

Question 24

collection of cells that carry out a specific function

Answer 24

tissues

Question 25

collection of tissues that carry out a specific function (hear, kidneys, lungs)

Answer 25

Organs

Question 26

What are the tissue types

Answer 26

Epithelial Tissue connective tissue muscle tissue nervous tissue

Question 27

Lining of all inside spaces and the exterior of the body * Classified by shape and number of layers

Answer 27

Epithelial Tissue

Question 28

Supports, protects, and gives structure to other tissues and organs

Answer 28

connective tissue

Question 29

Types of connective tissue

Answer 29

dermis- under epidermis bones cartilage tendons ligaments

Question 30

* Made of specialized cells (fibers) that can contract to shorten the entire tissue * Only found in bilaterally symmetric animals

Answer 30

Muscle Tissue

Question 31

Types of muscle tissue

Answer 31

Skeletal smooth cardiac

Question 32

* Transfers or processes sensory information from the environment or relays signals to direct movement

Answer 32

Nervous Tissue

Question 33

Tissues are arranged to____

Answer 33

Form organs

Question 34

No symmetry; Diploblastic embryos; Acoelomate

Answer 34

Sponges

Question 35

Radial symmetry; Diploblastic embryos; Acoelomate

Answer 35

Cnidarians

Question 36

Bilateral symmetry; triploblastic embryos; Eucoelomate

Answer 36

Mollusks, arthropods, and mammals

Question 37

Maintaining an internally consistent environment, despite changes in the external environment

Answer 37

Homeostasis

Question 38

What is homeostasis at the organismal level

Answer 38

temperature heart rate blood pressure blood sugar blood ph

Question 39

In the fossil record fossil earthworms are _____

Answer 39

rare

Question 40

In the fossil record fossil flatworms are______

Answer 40

unknown

Question 41

What time period was the first appearance of animals with a significant fossil record

Answer 41

Ediacaran geologic period

Question 42

Strength scales by a _____

Answer 42

square of size

Question 42

an observable rapid diversification in the fossil record

Answer 42

Cambrian explosion

Question 43

What tends to happen to genera after mass extinctions

Answer 43

we tend to see rapid recovery and radiation of genera

Question 44

Mass scales by a ______

Answer 44

cube of size

Question 45

Keep shape as it increases

Answer 45

isometry

Question 46

change shape as it increases

Answer 46

allometry

Question 47

Larger size body means...

Answer 47

need for more oxygen for respiration more absorption of nutrients during digestion