Geography and Earth Sciences

Based on embryo studies, blood proteins, and biochemistry of muscle activity, chordates may be more ...

Based on embryo studies, blood proteins, and biochemistry of muscle activity, chordates may be more ...

Based on embryo studies, blood proteins, and biochemistry of muscle activity, chordates may be more closely linked to
  echinoderms than other phyla.
  a. True
  b. False

Coco   28   1 Reply

karlyphilpott

Plants became extinct at twice the rate of animals during the Permian extinction event.

Plants became extinct at twice the rate of animals during the Permian extinction event.

Plants became extinct at twice the rate of animals during the Permian extinction event.
  a. True
  b. False

Johnni   74   1 Reply

nino99

Part of the gill structure in jawless fish evolved into jaws.

Part of the gill structure in jawless fish evolved into jaws.

Part of the gill structure in jawless fish evolved into jaws.
  a. True
  b. False

keelyhawkins   46   1 Reply

Astalina

The Devonian period is also known as the Age of Fish.

The Devonian period is also known as the Age of Fish.

The Devonian period is also known as the Age of Fish.
  a. True
  b. False

Coco   35   1 Reply

mikeman2332

All chordates are vertebrates. (Multiple Choice)

All chordates are vertebrates. (Multiple Choice)

All chordates are vertebrates.
  a. True
  b. False

keelyhawkins   57   1 Reply

JoshYar

Lobe-finned fish are important in the fossil record because it is believed that these fish ...

Lobe-finned fish are important in the fossil record because it is believed that these fish ...

Lobe-finned fish are important in the fossil record because it is believed that these fish eventually gave rise to
  amphibians.
  a. True
  b. False

emalay516   63   1 Reply

Astalina

All crossopterygians went extinct at the end of the Cretaceous.

All crossopterygians went extinct at the end of the Cretaceous.

All crossopterygians went extinct at the end of the Cretaceous.
  a. True
  b. False

Brapbrap   28   1 Reply

Jmassey95

The pelycosaurs are the ancestral base for all later reptile groups.

The pelycosaurs are the ancestral base for all later reptile groups.

The pelycosaurs are the ancestral base for all later reptile groups.
  a. True
  b. False

Wutwut12   49   1 Reply

Icgcyvfiifctcit

Fish are the earliest vertebrates.

Fish are the earliest vertebrates.

Fish are the earliest vertebrates.
  a. True
  b. False

Madam   28   1 Reply

dalenambawan

Coelacanths were thought to be extinct, but a living specimen was found off the coast of Madagascar ...

Coelacanths were thought to be extinct, but a living specimen was found off the coast of Madagascar ...

Coelacanths were thought to be extinct, but a living specimen was found off the coast of Madagascar in 1938.
  a. True
  b. False

luciaf99   35   1 Reply

Hadajahpope

The evolution of roots allowed plants independence from moist environments and to spread over all ...

The evolution of roots allowed plants independence from moist environments and to spread over all ...

The evolution of roots allowed plants independence from moist environments and to spread over all land types.
  a. True
  b. False

jkidane1829393   43   1 Reply

Joisar

Amphibians were the first organisms to live on land.

Amphibians were the first organisms to live on land.

Amphibians were the first organisms to live on land.
  a. True
  b. False

Raider49   67   1 Reply

busfuohrugf

Gymnosperms represent the earliest flowering plants.

Gymnosperms represent the earliest flowering plants.

Gymnosperms represent the earliest flowering plants.
  a. True
  b. False

ibukunsulie85   53   1 Reply

Hadajahpope

The early fish were jawless and armored, and inhabited shallow marine waters.

The early fish were jawless and armored, and inhabited shallow marine waters.

The early fish were jawless and armored, and inhabited shallow marine waters.
  a. True
  b. False

sunil1285   36   1 Reply

Ashleyroshell

The development of seeds allowed plants to grow flowers.

The development of seeds allowed plants to grow flowers.

The development of seeds allowed plants to grow flowers.
  a. True
  b. False

gi.x3   58   1 Reply

leg17

Terrestrial vascular plants probably evolved from green algae.

Terrestrial vascular plants probably evolved from green algae.

Terrestrial vascular plants probably evolved from green algae.
  a. True
  b. False

ibukunsulie85   81   1 Reply

selica

Ostracoderms developed before cartilaginous fish.

Ostracoderms developed before cartilaginous fish.

Ostracoderms developed before cartilaginous fish.
  a. True
  b. False

sopmit   51   1 Reply

asapchigga

Seedless vascular plants release spores to the environment.

Seedless vascular plants release spores to the environment.

Seedless vascular plants release spores to the environment.
  a. True
  b. False

hboydston   46   1 Reply

yuenc

Cooksonia is the earliest known vascular land plant.

Cooksonia is the earliest known vascular land plant.

Cooksonia is the earliest known vascular land plant.
  a. True
  b. False

joewalcott24   31   1 Reply

Helverson28

Pollen morphologies change in response to atmospheric pollution and UVB radiation.

Pollen morphologies change in response to atmospheric pollution and UVB radiation.

Pollen morphologies change in response to atmospheric pollution and UVB radiation.
  a. True
  b. False

luciaf99   38   1 Reply

yuenc

A flowerless, seed-bearing plant is called a(n) ____.

A flowerless, seed-bearing plant is called a(n) ____.

A flowerless, seed-bearing plant is called a(n) ____.
  a. echinoid
  b. sponge
  c. gymnosperm
  d. angiosperm
  e. crinoid

lexilourdes   461   2 Replies

lexilourdes

Put the following organisms in order of evolution, from earliest to latest.

Put the following organisms in order of evolution, from earliest to latest.

Put the following organisms in order of evolution, from earliest to latest.
  a. reptiles, amphibians, and fish
  b. fish, reptiles, and amphibians
  c. amphibians, reptiles, and fish
  d. amphibians, fish,

ggull329   61   1 Reply

srw23557

The major barrier to both plant and animal inhabitation of land was ____.

The major barrier to both plant and animal inhabitation of land was ____.

The major barrier to both plant and animal inhabitation of land was ____.
  a. higher water temperatures
  b. their inability to regulate body temperature
  c. their methods of respiration
  d. their methods

Mroche   41   1 Reply

Astalina

Fish with muscular fins attached to the body by a fleshy shaft and a series of articulating bones ...

Fish with muscular fins attached to the body by a fleshy shaft and a series of articulating bones ...

Fish with muscular fins attached to the body by a fleshy shaft and a series of articulating bones are ____.
  a. Tiktaalik roseae
  b. bony fish
  c. ray-finned fish
  d. lobe-finned fish
  e.

Kimstudies   266   1 Reply

ecarvallo1

Vertebrates first appeared in the ____.

Vertebrates first appeared in the ____.

Vertebrates first appeared in the ____.
  a. Cambrian
  b. Devonian
  c. Permian
  d. Mississippian
  e. Ordovician

anvaridthe   57   1 Reply

kellypooh97

Animals that can live for extended periods on land, but must return to water-based environments to ...

Animals that can live for extended periods on land, but must return to water-based environments to ...

Animals that can live for extended periods on land, but must return to water-based environments to reproduce are
  ____.
  a. hominids
  b. plankton
  c. reptiles
  d. mammals
  e. amphib

alexisangelique   46   1 Reply

Amc3010

What is the study of organic microfossils called?

What is the study of organic microfossils called?

What is the study of organic microfossils called?
  a. necrology
  b. palynology
  c. benthology
  d. pelipalology
  e. phylology

salsathief   28   1 Reply

premed9

A tetrapod is a(n) ____.

A tetrapod is a(n) ____.

A tetrapod is a(n) ____.
  a. extinct dinosaur species
  b. reptile with four legs
  c. flying mammal
  d. type of fish
  e. four-legged vertebrate

jaypatel432   59   1 Reply

lconard0726

The earliest fish were ____. (Multiple Choice)

The earliest fish were ____. (Multiple Choice)

The earliest fish were ____.
  a. ray-finned
  b. bony-finned
  c. cartilaginous
  d. jawless
  e. lungfish

neonfayt   72   2 Replies

neonfayt

The evolution of jaws played an important role in the evolution of fish because it allowed them to ...

The evolution of jaws played an important role in the evolution of fish because it allowed them to ...

The evolution of jaws played an important role in the evolution of fish because it allowed them to ____.
  a. diversfy feeding styles
  b. reduce oxygen consumption
  c. specialize feeding styles and reduce oxygen con

potato55   68   1 Reply

meek2199

The features of plants, such as leaves and roots, did not evolve simultaneously, but rather at ...

The features of plants, such as leaves and roots, did not evolve simultaneously, but rather at ...

The features of plants, such as leaves and roots, did not evolve simultaneously, but rather at different times. What type
  of evolution is this?
  a. progressive
  b. delayed
  c. sequential
  d.

Zoeyismycat   54   1 Reply

Avi cardinals

Which of the following was critical for the adaptation of reptiles to terrestrial ecosystems?

Which of the following was critical for the adaptation of reptiles to terrestrial ecosystems?

Which of the following was critical for the adaptation of reptiles to terrestrial ecosystems?
  a. the amniote egg
  b. four legs
  c. exoskeleton
  d. endoskeleton
  e. exoskeletons and endoskelet

emalay516   66   1 Reply

meek2199

A group of small, lizard-like reptiles among which are the earliest known reptiles are ____.

A group of small, lizard-like reptiles among which are the earliest known reptiles are ____.

A group of small, lizard-like reptiles among which are the earliest known reptiles are ____.
  a. pelycosaurs
  b. thecodontians
  c. labyrinthodonts
  d. therapsids
  e. protorothyrids

Coco   89   1 Reply

Astalina

Reptiles had evolved at least by the ____.

Reptiles had evolved at least by the ____.

Reptiles had evolved at least by the ____.
  a. Late Mississippian
  b. Late Silurian
  c. Early Pennsylvanian
  d. Early Permian
  e. Late Permian

Johnni   63   1 Reply

icysparkles

The sail-like fin on the backs of the pelycosaur did NOT function as a ____.

The sail-like fin on the backs of the pelycosaur did NOT function as a ____.

The sail-like fin on the backs of the pelycosaur did NOT function as a ____.
  a. sexual display
  b. means of locomotion
  c. means of protection
  d. means to look more ferocious
  e. thermor

nurse12   28   1 Reply

busfuohrugf

Which reptile group is considered to be the immediate ancestor of mammals?

Which reptile group is considered to be the immediate ancestor of mammals?

Which reptile group is considered to be the immediate ancestor of mammals?
  a. captorhinomorphs
  b. pelycosaurs
  c. labyrinthodonts
  d. therapsids
  e. coelacanths

Zoeyismycat   41   1 Reply

Sauleha

Plants adapted to the desiccating effects of the land environment with the evolution of ____.

Plants adapted to the desiccating effects of the land environment with the evolution of ____.

Plants adapted to the desiccating effects of the land environment with the evolution of ____.
  a. a cambium layer
  b. roots
  c. leaves
  d. cutin
  e. bark

SapphireSmoke   57   2 Replies

SapphireSmoke

Seedless vascular plants lived in low, wet habitats because they ____.

Seedless vascular plants lived in low, wet habitats because they ____.

Seedless vascular plants lived in low, wet habitats because they ____.
  a. needed water to reproduce
  b. did not have a means to transport water through their structure
  c. had no protection from desiccation
&

tamaraco   43   1 Reply

lconard0726

Echinoderms and chordates are thought to be related because ____.

Echinoderms and chordates are thought to be related because ____.

Echinoderms and chordates are thought to be related because ____.
  a. both have embryonic cells with spiral cleavage
  b. both have embryonic cells with radial cleavage
  c. both have amniote eggs
 

luciaf99   40   1 Reply

yilongchang

The proliferation of plants on Earth did NOTsignificantly impact ____.

The proliferation of plants on Earth did NOTsignificantly impact ____.

The proliferation of plants on Earth did NOTsignificantly impact ____.
  a. weathering rates
  b. erosion rates
  c. soil formation
  d. atmospheric composition
  e. UVB radiation

apich   34   1 Reply

Avi cardinals