Answer:
All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions.
Plants and some types of archaea or bacteria use photosynthesis to create food.
Answer:
Skeletal muscles contribute to maintaining temperature homeostasis in the body by generating heat. Muscle contraction requires energy and produces heat as a byproduct of metabolism.
Explanation:
Answer:
glass table, couch cushion, your bed, a chair
Answer: normal
Explanation:
In experimental design, especially those involving drug treatment, specimens (e.g mice, rabbit etc) are drafted into several groups to study their degree of response to the particular drug being investigated.
Of all, a group of specimens named NORMAL is usually NOT exposed to treatment in order to
- allow objective comparison between scientific parameters before and after experiments
