Which of the following is an example of a qualitative observation?

The tank with mussels has clearer water

Are watersheds connected to each other?

Smaller watersheds will impact larger, downstream watersheds

A healthy mussel population will most likely do which of the following in a river?

Provide a food source for predators

Which of the following is a quantitative observation

There are five mussels under the sand

Which of the following is the best description of a hypothesis

A prediction of an experiment's outcome

Why does it matter how much dissolved oxygen is in a river?

Animals in the river need it to survive

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BGCS Review 24-25

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Questions 20

Answers

1
What allows invasive species to thrive?
They like pollution
They have no predators
Humans help them live
They have a plan to take over the environment
2
Which of the following is an example of a qualitative observation?
The mussel weights 40 grams
There are 20 mussels in the tank
The tank with mussels has clearer water
The mussel is 30 cm long
3
Are watersheds connected to each other?
Always, all the water is in one water cycle
Never, each watershed is independent
A watershed connects to the ocean only
Smaller watersheds will impact larger, downstream watersheds
4
When something becomes more acidic, the pH becomes
Lower
It stays the same
Higher
5
All things are made of _____________
Chemicals
Compounds
Atoms
Nutrients
6
What do aquatic herbivores eat?
Algae and plants
Small animals like minnows
Fungi
They don't, they do photosynthesis
7
What do phylogenetic trees show?
Locations where species lived
What trees are in that forest
Evolutionary relationships
The genetics of the species in the tree
8
Mussels have a __________ relationship with fish
Commensalistic
Mutualistic
Competitive
Parasitic
9
Which of these would be a good first step when doing the scientific method
Drawing conclusions
Forming a hypothesis
Analyzing Data
Doing an experiment
10
Which of the following has a positive charge?
Electrons
Neutrons
Protons
Nucleus
11
Which of the following best describes all types of mussels
Apex Predators
Endangered Species
Invasive Species
Filter Feeders
12
What is the property of water that causes rain droplets to form on windows?
Surface Tension
High Specific Heat
Adhesion
Universal Solvent
13
A healthy mussel population will most likely do which of the following in a river?
Provide a food source for predators
Disrupt the food web
Decrease water clarity
Cause eutrophication
14
Which parts of the atom are found in the nucleus?
Protons, neutrons, and electrons
Electrons only
Protons and electrons
Protons and neutrons
15
Which of the following is a quantitative observation
There are five mussels under the sand
The mussel's shell feels smooth
There mussels eat algae
The mussel looks similar to a rock
16
What does the word "biosphere" mean?
It is a part of the ocean
Includes all living things
It is what mussels eat
It's a circle in biology class
17
What is the dependent variable in a study investigating if a plant grows more with more sunlight
The height of the plant
The amount of sunlight
The amount of water
The type of plant
18
Which of the following is the best description of a hypothesis
The result of the experiment
A scientific observation
A prediction of an experiment's outcome
A question an experiment answers
19
Which of the following causes ocean acidification?
Oxygen
Hydrogen
Carbon Dioxide
Nitrogen
20
Why does it matter how much dissolved oxygen is in a river?
It causes acidification
Animals in the river need it to survive
Plants need it for photosynthesis
It makes it hard for clams to build their shells

BGCS Review 24-25 Flashcards | StudBud