Over time, some plants growing in an area are crowded out by other plants. the new plants use up water and nutrients needed by the previous plants. the disappearance of the first plants is due to

Which of the following would most likely be key to gathering evidence that the rna world hypothesis is valid? creation of suitable environments for long-term study of single-celled organisms simulation of early earth conditions and long-term study of the resulting molecules development of a system for studying the microsphere's ability to absorb additional molecules categorization of the different specific conditions that result in the development of microspheres

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

How do living things obtain phosphorus