Euglenas are single-celled organisms. what can you confirm about euglenas from this diagram?
a) they're exclusively heterotrophs
b) they're capable of photosynthesis
c) they make energy solely from fermentation
d) they must consume plants to perform cellular respiration

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

Which feature of a human community is similar to a niche in a biological community

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.