Ascientist was observing an unknown slide under an electron microscope, he found a cell without a well-defined nucleus but with a thick cell wall and ribosomes. what type of cell could it be?

Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.