Answer:
1. Ms. Frizzle’s kids trap air in containers and discover that air is pushy stuff.
2. How do you know that air is real? (One way: Feel wind, breath.)
3. The students explore how air pressure can hold up heavy objects.
4 and 5 are attached in an image below.
Explanation:
It’s c, the process of change is slow.
Answer: an increase in immigration and birth rate a decrease in habitat size and death rate. a decrease in food supply and predation. brainliest??
Explanation:
To help them swim and move around in water.
Answer:
Active transport
Explanation:
The pumping of sodium ions out of the cell into the environment where there is a lower concentration is achieved through active transport. Active transport is the movement of molecules or ions against a concentration gradient across living cell membranes with the utilization of ATP. Active transport takes place through carries located in the membrane.