The answer should be A.
The control variable is the experimental variable that remains unchanged throughout the experiment. Alice did change the angles where the light from the ray box struck the mirror and where the mirror reflected the light. She also changed the direction, but she never really changed the ray box.
Answer:
Relative dating is the science of determining the relative order of past events.
Explanation:
Relative age dating determines whether one geological or paleontological event happened before or after a second event.
Answer:The traits the plants would have are;
The plants must have low gravity setting.
Plants must have the ability to provide large quantities of food.
The plants must be engineered to need little quantity of water
And the plant must be able to photosynthesize with little carbondioxide and litoff while going in space
Explanation:
There is need to grow plants in space so that in to help feed astronauts, and to provide psychological benefits for long-term space flight.
The space has low gravity setting, no oxygen and carbondioxide. For plants to grow in space it must exihibit some traits that will enhance their survival and these traits includes
The plants must have low gravity setting.
Plants must have the ability to provide large quantities of food.
The plants must be engineered to need little quantity of water
And the plant must be able to photosynthesize with little carbondioxide and litoff while going in space because without this plants cannot survival in space. Gravity enhance root growth and plant in space must have low gravity setting.
plant grows in a “pillow” filled with a clay-based growth media and fertilizer and this help to distribute water, nutrients and air needed for the growth and survival of the plants.
Answer:
more Na+ diffuse into the cell than K+ diffuse out of it
Explanation:
When a nerve cell is stimulated, the electrical properties of the membrane are momentarily reversed. The inside of the membrane attains a positive charge of up to +40 millivolts, while the outside becomes negatively charged. Under these conditions the membrane is said to be depolarized.
