Why is a dichotomous key called a dichotomous key?

What is the single most abundant compound in living organisms? A. sugar B. carbon C. fat D. water

Poem about layers of the atmosphere

Consider a food chain with 1,000 joules (an energy unit) available at the producer level. If this food chain is grass - > grasshopper - > lizard - > crow, how much energy is found at the level of the crow?

A study was done to see whether a smaller dose of flu vaccine could be used successfully. in this study, the usual amount of vaccine was injected into half the patients, and the other half of the patients had only a small amount of vaccine injected.

What are two methods of active transport.

Where do you think this heat lamp is being used?

Battery disposal is a disadvantage of which form of energy?

If a cell has 4 pairs of chromosomes, after mitosis each daughter cell will have how many chromosomes?

Which two families of flowering plants provide protein for the majority of humans?

A. what are the primary abiotic factors that will affect life underwater? b. Explain how the abiotic factors such as depth, Temperature, and some other mentioned in the questions before affect aquatic organisms.