D. 2. Which of the following is a symptom of sickle cell disease?
a. Swelling in the hands and feet
C. Pain
d. All of the above

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

When a cell is in a solution that has the same concentration of water and solutes as its cytoplasm, the cell is said to be in a(n) solution. a. isotonic b. hypotonic c. hypertonic b. facilitated

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred