A blastula is

a. the innermost germ layer.

b. a hollow ball of cells in an embryo.

c. a digestive organ.

d. a stage of development before a zygote.

Your body can store protein. true or false

Which of the following statements correctly represents the difference between acculturation and assimilation? A.

A common element among all the river valley civilizations was: irrigation systems that moved water to crops and settlements developed plumbing systems developed written materials the worship of leaders as God's

Name the ridged bundles of muscle found projecting inside the right atrium. View available hint (s) name the ridged bundles of muscle found projecting inside the right atrium. Trabeculae carneae papillary muscles pectinate muscles intercalated discs

Why do plants produce more carbon dioxide than oxygen during the night?

17. The lungs and _ are protected by the chest wall. O A spleen O B. heart O C. pancreas O D. liver

Alluvial fans, deltas and depostion are examples of land formations that are formed from deposits by rivers. true or false

How does salt work to kill bacteria and make food safe to eat?

Which of these is the thinnest? A. plate B. lithosphere C. oceanic crust D. continental crust

A scientist wants to display how the number of frogs in a pond gradually declined over a ten-year period what sort of visual display should the scientist use