Some problems with the digestive system make it very difficult for the body to digest enough food. Why would it be harder to exercise when you have a digestion problem like this? A) Your cells would not work as well because they would not have energy to break down oxygen from the air.

B) You would not get any of the molecules your cells need to exercise.

C) You would need to breathe in a lot more air because your body would have fewer molecules from food.

D) Your cells would not work as well because even though they would have enough oxygen molecules from the air, they would not have enough glucose molecules from food.

What evidence is there that convection occurs in earth’s troposphere?

1. the passing of is the basis of heredity. 2. our encode the instructions that define our traits. 3. each of us has thousands of genes, which are made of and reside in our chromosomes. 4. in addition to our genes, the we live in also define our traits. 5. humans have two complete sets of chromosomes. 6. when parents conceive a child, each parent contributes set of chromosomes. 7. every child receives of its chromosomes from the mother and half from the father. 8. this transfer takes place at when the father’s sperm joins the mother’s egg. 9. while most cells in our bodies have two sets of chromosomes, or a total of egg and sperm each have chromosomes. 10. when egg and sperm unite they create a single cell called a 11. each parent contributes complete set of chromosomes to their child. 12. since the parents contribute the chromosomes to each new child, every child inherits a unique set of chromosomes. 13. as a result, every baby will have a combination of traits.

What did the first language sound like