Science Unit 7 lesson 3
Flashcard
•
World Languages, Science
•
3rd - 4th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the original source of most food energy?
Back
sunlight
2.
FLASHCARD QUESTION
Front
What organisms change energy from sunlight to food for other organisms?
Back
producers
3.
FLASHCARD QUESTION
Front
A pet owner dropped some new fish into a pond. Several species of fish lived in the pond, but within a few months, only members of the new species survived. What BEST explains why this happened?
Back
Too many fish caused an imbalance in the ecosystem, so the food web was affected.
4.
FLASHCARD QUESTION
Front
What is MOST LIKELY to happen if most of a population of animals dies of disease?
Back
The food web will change.
5.
FLASHCARD QUESTION
Front
Which of these things that animals need travel through a food chain?
herbivores, ecosystems, air and sunshine, nutrients and minerals
Back
nutrients and minerals
6.
FLASHCARD QUESTION
Front
A hawk and an owl compete for the same food in the same food web. What is the MOST LIKELY reason why they are both able to succeed?
Back
One hunts at night, and the other hunts during daytime.
7.
FLASHCARD QUESTION
Front
A ________ is a model of overlapping food chains in which the flow of energy branches out in many directions.
Back
food web
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