Biology E.c #4 For Final

Front 1

Cartilaginous fish are characterized by

Back 1

a skeleton formed entirely of cartilage

Front 2

All chordates share which of the following characteristics?

Back 2

-bilateral symmetry
- a fully lined body cavity
-a dorsal, hollow nerve cord
-pharyngeal gill slits

Front 3

The ability of birds to fly is facilitated by their _____.

Back 3

-four-chambered heart
-lungs supplemented by air sacs
- external development in a shelled egg
-hollow bones

Front 4

The high body temperature of birds and mammals is due to _____.

Back 4

heat generated by a high metabolism

Front 5

An animal's ability to live successfully on land is increased by _____.

Back 5

development in a shelled egg

Front 6

Which of the vertebrate groups is the most diverse, but often overlooked because of humans' habitat bias?

Back 6

bony fish

Front 7

What is one chordate characteristic?

Back 7

post-anal tail

Front 8

Reptiles are well adapted to living in drier habitats because of their _____.

Back 8

production of a shelled amniotic egg

Front 9

These organisms used to be in class Aves, but they are now placed within the class Reptilia.

Back 9

birds

Front 10

A long period of uterine development and gas, nutrient, and waste exchange between the mother and embryo is characteristic of _____.

Back 10

placental mammals

Front 11

Reptilian embryos will not dry out in a desert habitat because _____.

Back 11

reptiles produce shelled, amniote eggs

Front 12

The only chordate feature present in adult humans is the _____.

Back 12

dorsal, hollow nerve cord

Front 13

Which of the following has a ventral nerve cord?

Back 13

earthworm

Front 14

The great size and mobility of the vertebrates is associated with _____.

Back 14

lightweight endoskeletons

Front 15

Which of the following characteristics are shared by both arthropods and mammals?

Back 15

a well-developed nervous system

Front 16

All members of the phylum Chordata, whether human or lancelet, share certain key features. Which of the following traits is not characteristic of all chordates?

Back 16

bony endoskeleton

Front 17

Species of which of the following animal phyla are deuterostomes?

Back 17

both Chordata and Echinodermata

Front 18

Parasitic lampreys have _____.

Back 18

-sucker-like mouths lined with teeth
-a backbone
-bilateral symmetry

Front 19

The invertebrate chordates differ from vertebrate chordates due to the lack of _____.

Back 19

a backbone

Front 20

The range of amphibian habitats on land is limited by _____.

Back 20

- eggs protected by a jellylike coating
-use of their skin as a supplementary respiratory organ
-external fertilization

Front 21

Which of the following is a group of invertebrates?

Back 21

Echinodermata

Front 22

In addition to the four characteristics that distinguish chordates from other phyla, chordates also have _____.

Back 22

a true body cavity (coelom)

Front 23

Reptiles are better adapted to land dwelling than amphibians because of their _____.

Back 23

well-developed lungs

Front 24

Class Chondrichthyes includes _____.

Back 24

sharks

Front 25

Marsupial mammals

Back 25

-develop in the uterus for only a short period
-are born at a very immature stage of development
-are found in Australia
-are milk-producing

Front 26

Natural selection can only act upon a certain trait if the trait is

Back 26

heritable

Front 27

Most mammal species are

Back 27

placental

Front 28

A change in the genetic makeup of a population is called

Back 28

evolution

Front 29

Which of the following groups of animals possesses an endoskeleton?

Back 29

echinoderms

Front 30

Fossils are rocks or sediments that

Back 30

bear the impressions or shapes of preserved organisms.

Front 31

Phylum Chordata does not include _____.

Back 31

squids

Front 32

Chordates and echinoderms are both protostomes. True or False?

Back 32

false

Front 33

The most common cause of extinction is

Back 33

habitat change

Front 34

Which of these is NOT a characteristic of most animals?

Back 34

autotrophic

Front 35

Evolution can be defined as

Back 35

a change in the genetic makeup of a population over time.

Front 36

Between the organs and the body wall, complex animals have a body cavity called a

Back 36

coelom.

Front 37

Which of these trends has occurred in the course of animal evolution?

Back 37

-increasing cellular specialization
-cephalization

Front 38

Which of the following can evolve?

Back 38

populations

Front 39

Modern geologists estimate that the age of the Earth is about ________ years old.

Back 39

4,500,000,000

Front 40

In terms of natural selection, a woman who lives ________ is favored.

Back 40

25 years and has 6 children

Front 41

Which animal group is named for having a double life?

Back 41

Amphibia

Front 42

Evolution by natural selection is __.

Back 42

a process that occurs as a result of differences in fitness.

Front 43

The theory of natural selection (survival of the fittest) states that

Back 43

the most well-adapted individuals in their environments survive and reproduce, contributing the most genes to the next generation.

Front 44

The many different breeds of domestic dog were produced by

Back 44

artificial selection

Front 45

Who published On the Origin of Species in 1859?

Back 45

Darwin

Front 46

Which of the following is NOT capable of evolving?

Back 46

a biology professor

Front 47

Mutations are important because they

Back 47

provide variation that can result in evolutionary change.

Front 48

Natural selection selects for, or against, certain

Back 48

phenotypes.