Answer:
Explanation
Water in a lake freezes from the bottom up, killing most aquatic organisms. When water in a lake freezes, it floats, providing insulation for organisms below. ... If water were most dense as a solid, lakes would freeze from the bottom up, eventually freezing solid.
Scientists<span> are working on ways to </span>make embryonic<span> stem </span>cells<span> without destroying </span>embryos<span> and to </span>make cells<span> that </span>behave like embryonic<span> stem </span><span>cells
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The answer to this question is Neurotransmitter
Neurotransmitter will create a chemical change inside our body as a response to each situation that we face. This response then will be transmitted toward our body and will determine what we should do next, (this process will be a lot easier to observe during dangerous fight or flight situations)
Invasive species can take kver an ecosystem, so the answer is true
