1. State the role of speech and writing in human life 2. State the meaning of the establishment and inhibition of conditioned radiation

3.Name the defects of the eye that you know, the causes and remedies

4. Why does myopia increase in school age, stating remedies?

5. What are the properties and roles of hormones?

6. Why is the pancreas said to be a phase gland?

7. Describe the function of testicles and ovaries?

8.What causes the body changes during puberty in boy and girl?

Which of these changes is the most important?

9. Why is it said that the pituitary gland is the most important gland?

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

the answer u all are looking for is 4000000000000000000000 million years.