Answer:
11) A. The optimum pH of an enzyme is 6.6
12) C. A control group
Answer:
The ability to change internal body temperatures to match changing external environmental temperatures
Explanation: this is basically the same thing as homeostasis as this is occurring in warm blooded mammals
Salmonella is the parasitic worm that can be transferred to humans when eating raw or undercooked fish.
Answer:
c. Ribs move out- diaphragm contracts- lungs expand- decrease intrathoracic pressure
Explanation:
Hey! your answer is --
Amoeba and Paramecium both are unicellular organisms . t
both take any plan and animal as food which float in water . the mode of nutrition in Amoeba is hetrotropic .
The process of taking food is called phagocytosis ..
Step--
Amoeba get food in pseudopodia and in closed in a food vacuole and digest them to get energy . The digested part of the food diffuse into cell cytoplasm and undigested part of food expell at any point on body surface ..
★ hope u understand ★
