Seven cups of instant coffee contain 315 mg of caffeine. How much caffeine is there in one cup of instant coffee?

Which flexible structure that supports the nerve cord and led to the backbone

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

Environmental impacts on evolution : mastery test