Organization/Living Things
Living or once living factors in an ecosystem.
What is "biotic"
A mechanism of homeostasis that always brings the levels back to set point.
What is a negative feedback loop.
The application of scientific knowledge for a practical purpose.
What is technology
A biologist discovers a new species of plant that grows in very wet climates. She studies the plant's stoma, the pores in the leaf of a plant that allow for gas exchange, and hypothesizes that this species would not be able to regulate the size of its stoma in varying levels of humidity.
- What is the biologist’s question/problem?
In different levels of humidity, can this species of plant regulate the size of its stoma?
A cell with no organized organelles.
What is prokaryotic cells.
The smallest unit of life.
What is cells.
The prefix "homeo-" means...
What is "same" or "remain the same"
Technology has risks and benefits that have to be evaluated by scientifsts. These are called
What is tradeoffs.
A biologist discovers a new species of plant that grows in very wet climates. She studies the plant's stoma, the pores in the leaf of a plant that allow for gas exchange, and hypothesizes that this species would not be able to regulate the size of its stoma in varying levels of humidity.
What is the biologist’s hypothesis (if/then statement)?
If the humidity in the environment changes, then the size of the stoma will not change.
The part of a cell that stores the genetic material (DNA).
What is the nucleus.
The hieracharchial levels of LIVING things smallest to largest.
What is cells, tissues, organs, organ systems, organisms.
A mechanism that allows the levels to get further and further from set point in order to accomplish a task in the body.
What is a positive feedback loop.
Engineers are working to develop a new kind of artificial knee, which is used to replace damaged knees. Which scenario would be considered a trade off of the artificial knee.
- The artificial knee reduces pain in people who have the knee
- The artificial knee has been made more resistant to wear and tear.
- The new artificial knee is heavier than previous artificial knees to improve its lifespan.
- The new artificial knee is heavier than previous artificial knees to improve its lifespan.
A biologist discovers a new species of plant that grows in very wet climates. She studies the plant's stoma, the pores in the leaf of a plant that allow for gas exchange, and hypothesizes that this species would not be able to regulate the size of its stoma in varying levels of humidity.
What are the manipulated, responding, and control variables?
Manipulated: The levels of humidity
Responding: The size of the stoma
Control: No humidity
This process involves unspecialized cells changing into cells with a specialized function.
What is cell differentiation (specialization).
The trachea has a layer of epithelial cells called the respiratory mucosa. It contains goblet cells that produce mucus. Which level of hierarchy is maintaining homeostasis?
What is tissue (layer of cells).
There are 3 parts to the feedback loop. Receptor, control center, and the ______.
Cochlear implants are devices that are often implanted in the ears of people who have trouble hearing. Is the following a risk or benefit of the implants?
- Patients can better determine the direction that sound comes from.
What is a benefit.
Which type of model is used in the following scenario? Charlotte made a flowchart to illustrate the process of ATP production in bacteria.
What is a conceptual model.
The shape of a neuron or nervous system cell is different than the shape of a muscle cell becuase ____
Cells differentiate or specialize in order to carry out different functions.
Identify the source (-sphere) of each of the following components:
a. worm -
b. minerals -
c. moisture -
d. air pockets -
a. worm - biosphere
b. minerals - geosphere
c. moisture - hydrosphere
d. air pockets - atmosphere
An example of a negative feedback loop.
What is blood sugar, body temperature, blood pressure, etc...
The process, like the scientific method, that bioengineers use to create things like the 3D Bioprinter is the "engineering design process". During this process the back and forth between scientists and engineers is called _____ and _____.
Research and Development.
Can a hypothesis be proven right or wrong?
No, only supported or rejected.
What is a barrier to the cell that controls what goes into and out of the cell.