potential warm up quiz questions2 Flashcards
What is an ecosystem?
An ecosystem is a geographic area where plants, animals and other organisms, as well as weather work together to build life
What happens to energy in an ecosystem?
The energy is transferred from one trophic level to the next, the remaining is released into the environment as heat.
How do plants incorporate carbon?
The carbon in CO2 is incorporated into plants by photosynthesis
How do animals incorporate carbon?
In the form of carbohydrates and proteins
from what molecules do animals incorporate nitrogen?
Decomposition
What molecule do plants incorporate nitrogen?
Amino acids and DNA
What is a nitrogen fixation?
the process by which nitrogen is taken back from its molecular form in the atmosphere and converted into nitrogen compounds useful for other biochemical processes.
What is the difference between a hypothesis and a scientific theory?
A hypothesis is a proposed scientific explanation for a set of observations, whereas a theory is a well- tested explanation that unifies a broad range of observations.
Explain the difference between the scientific term “theory” and everyday use of the term “theory”
A theory is proposed explanation for a wide range of observations supported by a wide range of evidences. A theory in everyday language is a guess
controlled experiments include:
- Test group(s)
- Control group(s)
- Independent (experimental) variable
- Dependent (responding) variable
- Controlled variable(s)
