Food vacuole is used to store and digest food in amoeba
Answer:
D
Step-by-step equation:
-10 + 30 = 20
It's like walking ten meters to the left, then walking thirty meters to the right. The result is walking 20 meters to the right. It's the same with force.
The process in which organ systems work to maintain a stable internal environment is called homeostasis. ... Here are just three of the many ways that human organ systems help the body maintain homeostasis: Respiratory system: A high concentration of carbon dioxide in the blood triggers faster breathing
D. A duck flies to another pond.
The above sentence is an example of emigration. Emigration refers to moving from one area to another for a long or permanent period. In this instance, a duck is leaving the pond it originally resided in (along a population other ducks) in order to reside in another pond. Therefore, it can be said that the duck "emigrated".
