In an experiment, the setup that provides a basis of comparison is known as...
the control group
100
Based on its type of nutrition, a predator such as a lion would be classified as a...
carnivore
100
Name the four macromolecules.
carbohydrates, proteins, nucleic acids, and lipids
100
True or False. A human heart cell is an example of a prokaryotic cell.
False, all human cells are eukaryotic.
100
This organelle provides energy for the cell...
mitochondria
200
After initial observation the student comes up with a possible explanation. Her scientific explanation is also known as...
the hypothesis.
200
How do herbivores obtain energy?
by eating plants
200
What is the name of the process in which water enters the atmosphere by evaporating from the leaves of plants?
transpiration
200
This part of the cell contains hereditary factors and controls most cell activities...
nucleus
200
What organelle uses sunlight to store energy as carbohydrates?
chloroplasts
300
How many variables can be tested in a properly designed scientific experiment?
only ONE
300
What does an autotroph do?
it makes it's own food
300
A resource that cannot be replenished by natural processes within our life time is called...
non-renewable
300
What are ribosomes responsible for?
protein synthesis
300
What organelle regulates the transport of materials into and out of the cell?
cell membrane
400
True or False. The goal of science is to investigate and understand the natural world, to explain events in the natural world, and to use those explanations to make useful predictions.
true
400
In ecology, members of a single species inhabiting a given area is known as...
a population
400
What is the name of the monomer that combines in long chains to form the polymers DNA and RNA?
nucleotides
400
What 3 things do plant cells have that animal cells do not?
cell wall, chloroplast, and vacuole
400
This organelle aids in the packaging of proteins and other substances to send out of the cell...
golgi apparatus
500
What is the difference between hypothesis and theory?
Hypothesis is an educated guess while theory is something that has been tested and is well supported.
500
Consider the biomass of an ecosystem, which group is always the biggest and forms the foundation for all the other groups to survive.
the producers, they convert sunlight into food
500
Eukaryotic cells have...
Membrane-bound organelles such as the nucleus.
500
What 2 things do all cells (prokaryote and eukaryote) have in common?
they all have cell membranes and they all have DNA
500
What organelle is responsible for assembling the lipid components of the cell membrane?