HELP ASAP How will the numbers of stomata differ in tropical plants and desert plants? How does this help protect the health of a plant?

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Aperson is outside exercising. body temperature begins to rise, and the person starts to sweat. their body temperature then returns to normal, and the body stops sweating. a positive b negative c allosteric d homeopathic

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different