7th grade chapter 11

What percentage of all animal species belong to the 9 major phyla?

Molecules such as DNA, RNA, & proteins in animal cells can be used for classification. t/f?

animal cells are specialized for different functions. t/f?

All vertebrates have bones that form a backbone called vertebrae. t/f?

animals have a protein to surround the cells & help keep its shape. What is the protein called?

These animals belong to phylum Nematoda and have a digestive system with 2 openings

The more similar the DNA of two animals, the more closely the animals are related. t/f?

Definition: structures that extend from the central part of the body

What percentage of the animal kingdom is made up of invertebrates?

These animals belong to class Aves, can fly, have stiff feathers, beaks, and gizzards to grind food.

This group contains coral and jellyfish, and has radial symmetry

Definition:This means it can be divided into 2 parts that are mirror images of each other anywhere thru its central axis

These animals have hair or fur covering their bodies, mammary glands to produce milk, & have live young (some lay eggs)

Definition: a flexible, rod-shaped structure that supports the body of a developing chordate

Most reptiles lay fluid-filled eggs with leathery shells. t/f?

animals without a backbone

vertebrates do not have internal bones to help support and move slower than invertebrates. t/f?

What are the two main large groups of animals?

Amphibians lay eggs that do not have protective coverings or shells. t/f?

Asymmetrical, belong to phylum Porifera, have no tissues or organs

These types of animals have 4 pairs of legs, two body segments, and no antennae or wings.

Animals belonging to the same phylum do not have similar body structures. t/f?

This group of animals includes shrimp, crab, lobster,& crawfish. They have 1 or 2 pair of antennae & jointed appendages

What does symmetry describe when discussing animals?

Definition: It can be divided into two parts that are nearly mirror images of each other.

Animals get energy from eating other organisms and digesting their food. t/f?

This group includes sea stars, sea cucumbers, sea urchins, and they have radial symmetry.

This group includes lizards, snakes, turtles, crocodiles, alligators, and have waterproof scaly skin.

Definition: It cannot be divided into any two parts that are mirror images of each other.

This group includes frogs, toads, & and salamanders and spend some of their life in water and part on land.

These animals have 3 pairs of jointed legs, 3 body segments, a pair of antennae, and a pair of eyes.

These animals have bilateral symmetry with nerve, muscle, and digestive tissues and a simple brain....

How many species have scientists named?

All invertebrates have a digestive system, circulatory system, and nervous systems. t/f?

Definition: thick, hard outer coverings that protect and support animals' bodies

Adult amphibians have gills and live in water; young amphibians have lungs and live on land. t/f?

an animal with a backbone

What group of animals includes snails, slugs, clams, and squid and bilateral symmetry?

Birds lay fluid-filled eggs with hard shells and feed and care for their young. T/f?

This group of animals includes insects, spiders, shrimp & crabs. They have exoskeletons and bilateral symmetry.

This group of animals includes earthworms and leeches, have bilateral symmetry, and their bodies have segments.

The phylum Chordata is made up of vertebrates. t/f?

Animals that have gills and paired fins, and include the groups jawless, cartilaginous, and bony.

animals are unicellular and eukaryotic. t/f?

Definition: animal that has a notochord, a nerve chord, a tail, and pharyngeal pouches