Vocabulary Unit 2 Lessons 11-14

a way to find things underwater using sound waves

• nectar

• delta

• plumage

• sonar

a scientist who studies animals and their characteristics

• zoologist

• primatologist

• plumage

• sonar

a scientist who studies primates

• zoologist

• primatologist

• delta

• sonar

an animal that hunts other animals for food

• zoologist

• primatologist

• predator

• marine

birds’ feathers

• plumage

• primatologist

• predator

• marine

related to the sea

• plumage

• primatologist

• predator

• marine

a layer of muscle that separates the upper and lower body sections in mammals and creates a space for the lungs to expand when they breathe in oxygen

• plumage

• diaphragm

• predator

• marine

a triangular area found where a stream or river flows into a bigger body of water and deposits mud and sand in a fan-shaped area

• delta

• diaphragm

• predator

• marine

When you breathe in, your _________ expands.

When you breathe out, your ________ relaxes.

• plumage

• diaphragm

• predator

• marine

sweet liquid that comes from flowers

• delta

• diaphragm

• nectar

• sonar