1.
fish could not live in the lake because the _____ _______ was poor.
2.
the water was dirty and the _________ was high.
3.
the __ of vinegar is acidic.
4.
bacteria is a __________.
6.
a sea turtle is an example of a ________.
7.
fish are _______ organisms.
8.
cooler water holds more _________ ______ than warmer water.
9.
water __________ pollute and/or harm underwater ecosystems.
10.
___________ levels increase in a lake because of decomposistion.
11.
fish, algae, and other ______ factors live in aquatic ecosystems.
12.
carbon dioxide,saltilinity, and other _______ factors live in aquatic ecosystems.
13.
plants rely on ______________ to turn sunlight into energy.
14.
producers and primary, secondary, and tertiary consumers are apart of a ________.
15.
overfishing in a lake can disrupt the _______.
16.
plants take in _______ from the air during photosynthesis.
17.
the _________ of a lake affects how much oxygen is in the water and what organisms can survive there.
18.
things that release carbon contribute to the ______ _____.
19.
ocean __________ can harm marine life.
20.
An ________ can be harmed by urbanization.
