Free points right here yall

Plants that have reproductive structures called cones are?

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from