Answer:
B. Heterotrophs cannot create their own food
Explanation:
Autotrophs, on the other hand, can.
Answer:
Stomach acid kills bacteria and parasites that have been swallowed. Your urine flow flushes out pathogens from the bladder area. Skin, tears and mucus are part of the first line of defence in fighting infection. They help to protect us against invading pathogens
Explanation:
