Which of the following are true for a scientific theory. CHOOSE ALL THAT APPLY. it is an educated guess it is extensively and reproducibly tested it is a principle or natural law theory and hypothesis are the same it may be modified​

What molecules does hemoglobin decay into over time

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.

Which chemical reaction shows photosynthesis? a. water + carbon dioxide + sunlight → oxygen + glucose b. carbon + oxygen → carbon dioxide c. hydrogen + oxygen → water d. nitrogen + hydrogen → ammonia