Chordates are (mostly)

The order of primates includes (select all that apply)

Amphibians cannot live solely on land because

Mammals are

Animals evolved from

The first two lineages of fish, the hagfish and the lampreys, did not yet have

Lancelets and tunicates are the only chordates without

The first vertebrates with jaws were

All terrestrial vertebrates are

All mammals

Birds belong to the class of

Birds can maintain their own body temperature without environmental influences, unlike other reptiles. This means they are

Feathers aid in (select all that apply)

The mass extinction of dinosaurs occurred

This category of mammals is isolated almost entirely on the continent of Australia

This group gives birth to live young

Humans and chimpanzees

All humans emerged from

The oldest human fossils ever discovered date back to

The Earth is

The earliest adaptation of plants was

These plants are the most modern and dominant plant type on earth

Bryophyta thrived in humid, tropical climates because

The vascular system in plants is responsible for

In a plant's vascular system, the xylem are

The phloem sends sugars from

Gymnosperm rely on ______________ for reproduction

Comparing sequences of DNA between species is called

The smallest unit of life that can evolve is

The Cambrian explosion, that occurred 541 million years ago, lasting appx 13-25 million years before its plateau, is an example of _________________ and challenges Darwin's theory that all evolution and speciation occurs gradually over long periods of time.

Growth rings in trees represent

Which plant has tap roots, flowers with 4 or 5 petals, and net-like veins in their leaves?

The anthers and filaments make up the _______________, the male reproductive organs of a flower

Which group of chordates developed a swim bladder for buoyancy?

What is the broadest hierarchal category in taxonomy?

What was the mechanism that Darwin developed for the theory of Evolution?

Which one of these isn't a reproductive barrier?

Where is the oldest fossil found in sedimentary rock?

Changes over time within a species that results in a single new species

Genetic bottleneck is random

Founder's effect _______________ genetic diversity

Gene flow ________________ genetic diversity

Comparative embryology suggests

Determining the age of a fossil using radioactive isotopes

Evolutionary fitness depends on

The mass extinction event that wiped out dinosaurs and sent the planet into an ice age was likely caused by

We can determine that species W is likely ____________ because their species line does not extend to the end of the tree

When females select their mate based on physical characteristics, ritualistic behaviors, or some other motivating factor, we call this

When changes in environment isolate certain populations of a species from one another, resulting in two new species over time, we call this

The source of all genetic variation

The eastern meadowlark and the western meadowlark have different mating calls. Therefore, the females of each species do not respond to the mating calls of the different males. This is an example of

Bacteria that become immune to antibiotics is an example of

Beavers with tails that are too short have difficulty making proper dams, while beavers with tails that are too long have difficulty swimming. Beavers with medium tails are best suited to their natural environment. What is this an example of?

What was the land mass called before the tectonic plates shifted into their current positions?

Vascular seedless plants are

Angiosperm rely on ________________ for reproduction

The first life on Earth appeared

According to natural selection, individuals best suited to their environments are more likely to