The control group outs the one that you don't change. The reason you don't change it is because you use it as a comparison with the other groups.
B unsaturated fats like olive oil and pine nuts are the healthy fats
Answer:
To show the flow of energy through ecosystems, food chains are sometimes drawn as energy pyramids. Each step of the pyramid represents a different trophic level, starting with primary producers at the bottom. The width of each step represents the rate of energy flow through each trophic level.
Explanation:
Answer:
Vaccination involves showing the immune system something which looks very similar to a particular virus or bacteria, which helps the immune system be stronger when it is fighting against the real infection.
Explanation: "it is what it is".
Answer: tt
Explanation: If the allele for a trait is recessive, it has to have 2 of that recessive allele to show that trait.