Your body needs protein to stay healthy and work efficiently it is an important building block of bones muscles Cartlidge and skin so the first one is your answer.
Answer:
Bacteria cells are very different from animal, plant or fungal cells. They don't have organelles such as nuclei, mitochondria or chloroplasts. Although they do have ribosomes and a cell wall, these are both different in structure to the ribosomes and cell walls in the cells above.
Explanation:
D. it is safer because no radiation is used
ANSWER:
Frequency.
STEP-BY STEP EXPLANATION:
A workout program is organized in terms of frequency, duration and intensity. Each element is important for ensuring you maximize your workouts so you experience health and fitness benefits. Frequency measures how often you complete your workouts and intensity measures how hard your body is working during each of those training sessions. Ideal frequency and intensity varies depending on whether you're doing cardio exercise or weight training.