through paying attention and class and studying
Body fossils include molds and casts. A mold is the imprint left by the shell on the rock that surrounded it. Molds of the underside of shell may be left on the surface of rock that formed when sand or mud filled the inside of the shell.
Answer:
a,c and d
Explanation:
- brain becomes smaller and lighter with age and although in absence of disease, it retains its structure and function.
- the brain shrinks, it pulls away from from the skull and the amount of amount of space between brain and skull doubles between 20 to 70 years of age.
- Blood flow reduces within the brain , which also uses less oxygen and glucose.
Hence, options a, c and d are correct.
Answer:
Shrink and wilt.
Explanation:
The salt kills plants, it leaches the water from the cells.