Old Yeller

Name:__________________
Science Study/Review Sheet
Unit One - Variety of Life

List the 5 characteristics of a living thing.
  1. It can grow and develop
  2. It can reproduce to make more of its kind
  3. It can make or get food
  4. Uses food for energy
  5. It can sense and react to its surroundings

List two adaptations (structure and or ability/skill) for the following functions:
  Moving
  1. Bones, muscles –structural adaptation
  2. Walking, running - skill
  Staying warm or cool
  1. Shivering, seating – skill
  2. Fur-skin- to keep warm – structural adaptation

What is the difference between endothermic and ectothermic? Give an example of each.
Endothermic: warm blooded organism that body temperature stays the same no matter what happens with the temperature of environment.   Ex:mammal.
Ectothermic: cold blooded organism the body temperature changes with its environments temperature. Ex: Reptile

What is a classification system?   Give an example of a classification system.   It can be one you have seen before or you can create your own.
A classification system is a method of sorting and grouping objects and organisms. Classification systems are used to help scientists think about living things. It is largely based on structural features. Ex: Sorting our paper clips. We sorted by size and color.

List three characteristics of an arthropod.

  1. 3 or more pairs of jointed legs
  2. Hard exoskeleton
  3. Body made up of 2 or more distinct parts

Are all arthropods insects?   no

Are all insects arthropods? yes

List three characteristics of an insect.
  1. 3 pairs of jointed legs
  2. Exoskeleton
  3. Body made of 3 parts

What are 3 reasons that species become endangered?
  1. Disease
  2. Overhunting
  3. Change in environment
  4. Starvation
  5. Habitat was destroyed

What is the difference between a vertebrate and an invertebrate?   Give an example of each.
Vertebrate: any animal with a...