The one for the cells is the
cells need to be able to get oxygen gas nutrients and get carbon dioxide out quickly.
i’m not sure for the other ones
Hypothesis: It is basically a prediction of what an experiment will do. You are making a scientific guess to what is going to happen. After you make a hypothesis you will perform a experiment to test your hypothesis and to see whether your hypothesis was right or not. If it is then you are good to go (move on to make a data) if not then you have to do the project over again.
Research/ Experiment: Usually researching and experimenting are different kind of things but experimenting is basically what i said in the Hypothesis area, you are testing to see if your hypothesis is right or wrong. Usually researching means you are finding a source for your project. (Using source is a main thing when creating a project).
Last by not least theory: Theory is different from predictions or hypothesis. A theory is a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained. Example: My theory for the big bang theory is... and you put your theory in it.
Hope this helped :) <span />
Answer:
The Y chromosome do not go through crossover
Explanation:
Typically, genes from the mother and father are shuffled -- or, "cross over" -- to produce a genetic combination unique to each offspring. But the Y chromosome does not undergo crossing over, and, as a result, its genes tend to degenerate, while repetitive DNA sequences accumulate. Each chromosome is made up of DNA.
Biofeedback headsets measure your brain waves, using EEG. They're small bands that sit easily on your head and measure activity through sensors
