One interaction between the nervous system and the skeletal system involves the calcium stored in the bones. The nervous system requires calcium for the proper transmission of nerve impulses. In which other way do the skeletal and nervous systems interact?

A. Red blood cells are produced in bone marrow.

B. The brain controls the contraction of muscles.

C. Bones protect the brain and spinal cord from injury.

D. The brain helps mount a defense against foreign bodies.

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.

Linda and julia are trying to determine whether their ideas are scientific or pseudoscientific. linda's idea is free of bias. julia's idea gives the same result when tested repeatedly. which statement is correct about linda and julia's idea?

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?