Living organisms obtain many of their requirements by diffusion. They also get rid of many of waste materials in this way. For example, Plants need carbon dioxide for photosynthesis. This diffuses from the air into the leaves through the stomata. It does this because there is a lower concentration of carbon dioxide inside the leaf as the cells are using it up. Outside the leaf in the air, there is a higher concentration. Carbon dioxide molecules therefore diffuse into the leaf down this concentration gradient :)
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During puberty the testes of the man will begin to produce testosterone. This causes hair growth in multiple areas of the body and the voice change. Similarly, women begin to grow hair but also begin menstruation.
The Parents genes are what’s represented
The turtle dude he is legit and the most chill turtle ever
This is my opinion but based on the connotations of the words I would say that an observation is the information you gather from something indirectly, like you're not asking someone a specific question. For example, if I see that someone eats everything on their plate except their carrots, i can observe that they do not like carrots. However, an interview would be directly asking a question for an answer. I do not have to watch someone not eat the carrots on their plate to know they don't like carrots because I will ask instead.
