Question

1- Pick characteristic(s) that apply to ALL animals.
Group of answer choices

Multicellular

single celled

Eukaryotic

Prokaryotic

Heterotrphic

Autotrophic

have no cell walls

active movement in at least one stage of life

have specialized proteins like collagen

reproduce sexually

2- What is the type of symmetry where the left and right sides of the animal are mirror images?
Group of answer choices

Bilateral

Radial

Asymmetry

3- What is the type of body cavity where the organs are surrounded by tissue layers which suspend and protect the internal organs?
Group of answer choices

Coelom

Pseudocoelom

Acoelomate

4- These organisms are the closest living single celled cousin of animals. Fossil evidence showed that this organism and animals share a common ancestor which likely looked a lot like this living single celled cousin.
Group of answer choices

Choanoflagellate protist

Chlorophyte algae

Sponge like suspension feeder

Arthropods

5- Which phylum of animals are commonly known as roundworms?
Group of answer choices

nematoda

platyhelminthes

annelida

arthropoda

6-Which phylum of animals are commonly known as flatworms?
Group of answer choices

platyhelminthes

nematoda

annelida

arthropoda

7- Animals such as the sea star, sea cucumber, sand dollar, sea urchins and brittle stars belong to this phylum.
Group of answer choices

Echinodermata

Arthropoda

Cnidaria

Chordata
8- What is a detritivore?
Group of answer choices

an animal that eats dead and decaying organic material

an animal that eats both plants and other animals

an photosynthetic animal

a parasitic worm

9- These animals were the first to make it onto land ~460 million years ago.
Group of answer choices

Arthropods

Flatworms

Roundworms

Molluscs

10- By what means do cephalopods propel themselves quickly through the water?
Group of answer choices

the move backwards via jet propulsion by streaming water out their siphon.

They use their tentacles to swim in a sideways manner

The use an ink jet.

they use the fast beating of their long tails.

please answer all questions.

Answer 1

1.

Mostly animals are multicellular. Animals are not unicellular. All animals are eukaryotes. Animals are not prokaryotes. All animals are heterotrophic, they do not make their own food. They are dependent on plants and other animals for their food. Animals are not autotrophic. They do not make their own food. All animal cells lack cell wall. Collagen is found in animals in flesh and connective tissues. Some animals like planaria and annelids reproduce asexually.

CORRECT OPTIONS ARE MULTICELLULAR, EUKARYOTIC, HETEROTROPHIC, HAVE NO CELL WALL, AVE SPECIALIZED PROTEINS LIKE COLLAGEN, ACTIVE MOVEMENT IN ATLEAST ONE STAGE OF LIFE.

2.

Bilateral symmetry is the symmetry in which left and right side of the body of an organism can be divided into two equal and identical halves which are mirror images of each other.

In radial symmetry, organism lacks left and right sides but on cutting through the centre of the structure produces two equal halves.

Asymmtery means the organisms which lack symmetry.

CORRECT OPTION IS BILATERAL.

3.

Coleom is the main body cavity which is present inside the body and surrounds the internal organs.

Pseudocoelom is the fluid filled body cavity which is present between mesoderm and endoderm. It bathes the internal organs in nematodes.

Acoelomates do not posses body cavity.

CORRECT OPTION IS COELOM.

4.

According to the studies, choanoflagellate protists are said to be the cousins of all the animals.

CORRECT OPTION IS CHOANOFLAGELLATE PROTISTS

5. Phylum Nematodes are also called as roundworms.

Phylum Platyhelminthes are common called as flatworms.

Phylum annelids are commonly called as ringed worms or segmented worms.

No such common name is given to the phylum arthropoda.

CORRECT OPTION IS NEMATODA

6.

Phylum Nematodes are also called as roundworms.

Phylum Platyhelminthes are common called as flatworms.

Phylum annelids are commonly called as ringed worms or segmented worms.

No such common name is given to the phylum arthropoda.

CORRECT OPTION IS PLATYHELMINTHES.