Unit 4 Animals Review

Vertebrate Nutrition

Question: Living things that obtain energy by eating other living things are called _______________?
Answer: Consumers

Question: Name the three types of consumers.
Answer: Omnivores, Carnivores, & Herbivores


Mammals have different types of ____________ and birds different types of __________ depending on the food they eat.

Answer: Teeth, Beaks

Question: Most reptiles & amphibians are ________________?
Answer: Carnivores


Animals such as, sheep and cows, who have a special way of digesting food. Grass is partly digested in the digestive system, but then it returns to the mouth....what are these animals called?

Answer: Ruminants

Vertebrate Respiration

Question: The exchange of gases inside the body is called _____________?
Answer: Respiration 

Question: All animals need to take in __________ and they all need to expel waste called ______________
Answer: Oxygen, Carbon Dioxide

Question: ____________, ______________, & _____________ take in oxygen from the air. Air passes into the lungs. Blood cells absorb the oxygen from the lungs and transport it around the body. Waste (carbon dioxide) leaves the body through the lungs. 
Answer: Mammals, Birds, and Reptiles


_________ take in oxygen from water. The water enters the body through the mouth and leaves through the ________. The oxygen is absorbed into the blood through ________ in the gills. Waste carbon dioxide leaves the body through the gills.

Answer: Fish, Gills, Capillaries


When they are young, ______________ are aquatic animals. They take in the oxygen they need from the water through their gills. During metamorphosis, their gills close and they develop ______________.

Answer: Amphibians, Lungs 

Vertebrate Reproduction


When an animal reproduces it creates a new living thing which is similar to itself. This is called_______________?

Answer: Offspring

Question: Most animals reproduce ___________. This method requires a male and a female of the same species.
Answer: Sexually

Question: Birds, fish, reptiles and amphibians are __________ animals. The embryo grows outside the female's body, inside an egg. The shell or jelly around the egg protects the embryo. The egg also contains all the nutrients it needs to grow. These mammals are called ____________.
Answer: Oviparous, Monotremes

Question: Almost all mammals are ___________. The embryo develops inside the mother and she gives birth to live offspring. All baby mammals drink their mother's milk.
Answer: Viviparous

Question: A few species are ____________. These animals produce eggs, but the eggs develop and hatch inside the mother. Later, the mother gives birth to live offspring.
Answer: Ovoviviparous


Question: All ____________ have an external skeleton called an exoskeleton. 
Answer: Arthropods

Question: Crustaceans have two body parts: a ___________ and an _________. Their exoskeleton is very hard, like a shell. They have five pairs of legs.
Answer: Cephalothorax, Abdomen

Question: _____________ have long segmented bodies. They have many pairs of legs and two antennae.
Answer: Myriapods

Question: _____________ have two body parts: a cephalothorax and an abdomen. They have ________ pairs of legs and up to eight eyes.
Answer: Arachnids, Four

Question: Insects have three body parts: a ________, a ________ and an ___________. All insects have two antennae and three pairs of legs.
Answer: Head, Thorax, Abdomen

Other Invertebrate Groups

Question: ____________ live at the bottom of the sea. They are covered by a hard, spiny skin. Name one example.
Answer: Echinoderms, Starfish

Question: _________ live in water. They are the simplest invertebrates
Answer: Sponges

Question: __________ have a long, soft body with moist skin. 
___________ live in the sea. They have a soft, jelly-like body with one opening.

Answer: Annelids, Cnidarians

Question: Name the 3 subgroups of molluscs:
Answer: Bivalves, Gastropods, and Cephalopods

Question: Name the 6 invertebrate groups:
Answer: Arthropods, Molluscs, Echinoderms, Sponges, Annelids, Cnidarians