Birds such as eagles have feathers and reptiles such as a lizard has dry scaly skin. Birds are warm blooded, and reptiles are cold blooded.
Answer:
D
Explanation:
proteins make up every thing
Answer:
Antibiotics save lives but any time antibiotics are used, they can cause side effects and lead to antibiotic resistance.
Since the 1940s, antibiotics have greatly reduced illness and death from infectious diseases. However, as we use the drugs, germs develop defense strategies against them. This makes the drugs less effective.
Answer:
Cell fractionation allows to study the different parts of a cell in isolation.When the organelles have been isolated, you can see which organelles make the most energy.
