Through my research I found matching questions with similar answers:
A) macrophages
B) antigens
C) antibodies
D) lymph
The best answer to fill in the blank would be the third option C) Antibodies which in the name anti means against, so since the word anti is the same as against, its a battle between antibodies and invaders, so that's why its C).
Answer: 1) a. decrease 2) b. increase
Explanation: 1) If the rabbit population declined and it is the main source of food for the lynx, the lynx population would decrease because it wouldn’t have enough to eat. 2) Since the lynx is a predator of rabbits, but all the lynx were killed then the rabbit population would increase because they aren’t being eaten.
Warm air rises and eventually cools. Answer choice D.
The basic structure of bones is bone matrix, which makes up the underlying rigid framework of bones, composed of both compact bone and spongy bone. The bone matrix consists of tough protein fibers, mainly collagen, that become hard and rigid due to mineralization with calcium crystals.
Answer:
The principle of autonomy