What renewable energy source do you think would be best to develop first. There is no right or wrong answer
In at least 3 sentences, please.

I believe solar power is a renewable energy source that should develop first.  This is because as of right now, scientists know that they aren't as efficient as they could be. These panels are currently growing cheaper as production capabilities increases but the panels are going to rarely be able to produce efficiently due to weather conditions. If more money gets added to the research and development of this technology, these panels will become more efficient, thus making more clean energy.

the answer is d. chordata

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.