7th Grade Science Unit Four

7th Grade Science Unit Four - Animal Kingdom

Check the statements below that are true for Animals.
1. Animals can be either single cell organisms or multicellular organisms.
2. Most animal soecies are invertebrates.
3. All animals are consumers.
4. All animals reproduce sexually.
5. Most animals can move from place to place.
A consumer is __________
1. an organism that can make its own food.
2. an organism that eats other organisms or organic matter.
An example of human innate behaviour is:
1. speaking english
2. programming a computer
3. walking
4. writing poetry
A ____________ is an area that is marked and occupied by one animal or a group of animals that do not allow other members of the species to enter.
________________ is a period of inactivity and decreased body temperature that some animals experience in the winter.
Which is a disadvantage for animals living as part of a group?
1. enables them to hunt large prey
2. increases the competition for mates and food
3. enables them to spot predators quickly
4. enables them to defend themselves better
The main reason that sponges are classified as animals is:
1. Sometimes, they do not move.
2. They live in the water.
3. They can reproduce sexually.
4. They cannot make their own food.
Invertibrates make up about ________ of all animal species.
1. 10%
2. 50%
3. 96%
4. 33 1/3 %
A characteristics of Cnidarians is:
1. they have no gut
2. they cannot live in water
3. they have stinging cells
4. they have no nerve tissues
Humans can become infected by both flatworms and roundworms.
1. True
2. False
Which of the animals below are mollusks?
(Check all that apply.)
1. crabs
2. oysters
3. clams
4. lobsters
5. snails
6. squid
Which of the following invertebrates is thought to be the smartest?
1. clam
2. slug
3. octopus
4. earthworm
All leeches are parasites.
1. True
2. False
The largest group of animals are:
The bodies of annelid worms can be divided into ___________.
Check the characterisitcs of arthropods.
(Check all that apply.)
1. a segmented body with specialized parts
2. an internal skeleton
3. jointed limbs
4. well-developed nervous system
5. all live outside of water
If you have arachnid phobia, it means you have a great fear of:
1. centipedes
2. insects
3. spiders
4. crabs
The largest group of arthropods are:
The process during which a caterpillar ultimately changes into an adult butterfly is called:
Echinoderms have
1. an internal skeleton
2. an external skeleton
3. no skeleton
Echinoderms have
1. blood flowing through their vascular system
2. no vascular system
3. watery fluid flowing through their vascular system
Echinoderms include:
(Check all that apply.)
1. clams
2. sea urchins
3. sea stars
4. jellyfish
5. sand dollars
Animals that have a backbone are called:
Animlas that have stable body temperatures are called:
1. ectotherms
2. endotherms
An organ that removes oxygen from water and is used by fish to breathe is its _________.
Which is an example of a fish that does not have a backbone?
1. goldfish
2. tuna
3. trout
4. shark
Check the two features of amphibians that enable some of them to live on land.
(Check two.)
1. head
2. legs
3. gills
4. lungs
5. tail
The first animals to live entirely out of the water were:
Snakes do not need a knife and fork because:
1. they use their teeth to cut up their food before they eat it.
2. they swallow their prey whole
3. they eat plants only
4. they only eat liquid food.
While all birds have wings, not all birds can fly.
1. True
2. False
Check the features that are common to all birds:
(Check all that apply.)
1. a beak
2. gills
3. feathers
4. wings
5. reproduce asexually
All mammals have __________ glands which in female mammals secretes milk.
All mammals must walk to get around; no mammals can fly.
1. True
2. False
The main characteristic of marsupials is:
1. they lay eggs
2. their young live separately from their mother after birth.
3. their young contiue their development in their mother's pouch after they are born.
4. they reproduce asexually
Check the features of primates.
(Check all that apply.)
1. They have five fingers on each hand and five toes on each foot.
2. They lay eggs.
3. They have forward facing eyes.
4. They have gills.
5. They have larger brains than most other mammals of the same size.