Aflowering plant's first leaves are called
a. cotyledons
b. petals
c. pistils
d. stamens

Which of the following would be an important part of a multi-step plan to restore the stability of the red-cockaded woodpecker's ecosystem?

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an