Differences among offspring are _______ .
variations
Name an example of group behaviors that show animals working together to get food.
Dolphins trap a school of fish, wolves howl to signal it is time to hunt,
Something known without being taught is a(n)
instinct
A fire has burned down a forest. Name two ways this changes the forest ecosystem.
Some animals will leave, some will adapt
To survive and do well, an organism must live in a(n) _________ that meets its needs.
environment
Some animals _______, or move to new areas at certain times of the year.
migrate
Groups of animals may be large or small. The size of the group depends on what the animals need. Animal groups tend to be _______ if there less food. (smaller or bigger)
smaller
Groups of animals may be large or small. The size of the group depends on what the animals need. Animal groups tend to be _______ if there is plenty of food. (smaller or bigger)
bigger
Samara has brown eyes and small earlobes. She has _______ these traits.
inherited
A green plant near a window may begin to lean toward the _______.
sunlight
Plants react to the environment. A plant may shed its leaves if it doesn't get enough _______.
water
A caterpillar goes through _______ and looks completely different by the time it is an adult.
metamorphosis
List 3 things affect an ecosystem?
temperature, pollution, natural disasters