True because excretory is like sweat and you sweat through your skin- more specifically the pores in your skin
Radioactivity due to heavy elements
Friction caused by earths fast rotation
Photosynthesis takes place in B. In chloroplasts because that's where the plant's green color is produced.
Answer:
Aerobic exercise such as jogging, elliptical trainer or spin class increases cardiovascular and respiratory endurance. To some extent, they also improve muscular endurance.
Explanation:
Aerobics is a form of physical exercise to help train.
Answer:
D
Explanation: Population will proceed to grow, until resources are used up, then population begins to decrease.