Answer:
the answer is D) a structure composed of a number of tissues that work together to perform a specific task.
Explanation:
all organs work together to keep us healthy. that's why they're called "organ systems." a system works together!
Answer:
an athlete should increase calorie intake.
Explanation:
Having stronger bones
Easier to do household chores
Lower blood pressure
Larger lung capacity
Spring is your answer. The opposing hemispheres have opposite seasons.
When the northern hemisphere has them, in order: winter, spring, summer, fall
At those same times, the Southern Hemisphere has them : summer, fall, winter, spring.
Answer:
Diffusion
Explanation:
Diffusion is the movement of a substance (majorly liquids and gases) from a region of high concentration to a region of low concentration. Liquid and gases excluding solids can undergo diffusion because of their ability to move randomly. Diffusion is driven by a gradient in concentration.
For example gases can easily diffuse quickly and easily into another gas, because of its ability to move randomly. The foul air from the back room (higher concentration) was able to quickly spread into the clean air at the front row (low concentration) by diffusion
