The immune system is the bodies defense against invaders and is located in all body tissues with concentration in the mucosal surfaces and skin.
Answer: option A - bottleneck effect
Explanation:
Whenever sudden change caused by human or natural disasters occurs in the environment leading to the reduction of organisms or biodiversity present to a lower size, such condition is referred to as BOTTLENECK EFFECT.
Answer:
See the answer below
Explanation:
<em>The advice I would give to Zara would be that she should keep Bozo in a separate tank with common salt water away from the goldfish. Bozo is a salt water fish while the goldfish can only survive in freshwater.</em>
If Bozo is kept in a saltless water/freshwater tank with the goldfish, the water would be hypotonic to Bozo. Consequently, water will osmotically diffuse into the cells of Bozo, the cells would become turgid and lyse, and this would lead to the death of the fish.
If the goldfish is kept in the same salt water tank with Bozo, the salt water would be hypertonic to the goldfish. Consequently, water will osmotically diffuse out of the cells of the goldfish into the surrounding salt water, the cells of the goldfish would become flaccid, and this would lead to the death of the fish.
Answer: By us people breathing in oxygen and breathing out carbon dioxide.