I think the answer for the first question is the food web and for the second question I think it's, climate
Answer:
Identifying elements in astronomical objects using their spectra. Measuring the spectrum of light from a star can tell astronomers what the star is made up of. Since each element emits or absorbs light only at a particular wavelength astronomers can identify what element are in the stars from the lines in their spectra.
Answer:
d. K+ and Na+ both diffuse into the cell along their concentration gradients and drive the transport of glucose.
Explanation:
Na/K pump is a pump located on the plasma membrane which uses ATP to move 3 Na ions out the cell and brings in 2 K ions into the cell. It is an example of primary active transport. As a consequence,concentration of Na is higher outside the cell, while K concentration is higher inside the cell.
Glucose is transported in the cell against its gradient, together with Na ions (symport) which move down their concentration gradient.
This is an example of secondary active transport because it uses the energy from the primary active transport to move other substances such as glucose against their own gradients.
Answer:
I agree with this. And at some extent they are, but they could do better. I mean we are turning beautiful pieces of land into cities full of crime, waste, and pollution. So, yes I believe that more time and money should be invested in protecting the natural beauty of our world.
Explanation:
Pretty sure u need to measure your own pulse for this, not sure what it’s asking if not
