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FREE AND STUDY GAMES ABOUT BIOLOGY 9 WEEKS
EXAM QUESTIONS
Qs and Ans Expert- Explanation
This Exam contains:
-Guarantee passing score -75 Questions and Answers -format set of multiple-choice -Expert- Explanation Question 1: org. that break down organic matter and return it to the env. are called ___
Answer:
decomposers
Question 2: write the chemical equation for photosynthesis
Answer:
6CO? + 6H?O ----------> C?H??O? + 6O?light energy
Question 3: Term for group of org. of one type living in same plac
Answer:
population Question 4: the use of radio tags, satellites, and microscopes are all techniques employed in the basic ecological research method of ____
Answer:
observing
Question 5: what is term for each step in transfer of energy and matter within food web
Answer:
trophic level
Question 6: suspensions are mixtures of
Answer:
water and undissolved material
Question 7: main source of energy for living things
Answer:
carbs Question 8: one of the most important factors in determining whether a chemical reaction will occur
Answer:
energy changes Question 9: a biome is a group of ecosystems that have the same climates and similar dominant communities. T OR F.
Answer:
true
Question 10: process that changes one set of chemicals into another
Answer:
chemical reactions
Question 11: The info gathered from observations is
Answer:
data Question 12: All of the following are characteristics of all living things EXCEPT
- growth
- reproduction
- movement
- use energy
Answer:
- movement
Question 13: In metric system, basic unit of length is
Answer:
meter
Question 14: a covalent bond is formed as a result of
Answer:
sharing electron pair Question 15: aquatic ecosystems can receive a large input of a limiting nutrient from the runoff of heavily fertilized fields . T OR F
Answer:
true
Question 16: ecologists can make predictions using ecological models . T OR F
Answer:
true
Question 17: Which is not a mesasurment in SI...
meter ounce liter gram
Answer:
ounce
Question 18: chemical substances that an org. requires to live are called _____
Answer:
nutrients
Question 19: which is NOT a basic method used by ecologists to study the living world.
- experimenting
- classifying
- modeling
- observing
Answer:
- classifying
Question 20: water molecule is polar bc there is an uneven distribution of electrons between the oxygen and ____ atoms
Answer:
hydrogen Question 21: combined portions of earth in which all living things exist is called the
Answer:
biosphere
Question 22: an org. that cannot make its own food
Answer:
heterotroph Question 23: a lake that is protected form receiving the runoff from a cultivated field is likely to remain a healthy ecosystem. T OR F
Answer:
true
Question 24: what is the boiling point of water in celsius
Answer:
100 degrees C
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