Stars are formed in clouds of dust and gas (nebulae.) Nuclear reactions at the center (core) of stars gives enough energy to make them shine brightly for many, many years. The exact l<span>ifetime of a star depends on its size.</span>
The answer is the letter a
Answer: amino acids can be formed together to make proteins. They can be obtained by food like eggs tofu and nuts. There are 20 different amino acids but the human body only needs 10 of them to live. These 10 amino acids are called essential amino acids. Amino acids are made up of amine , carboxyl and an R group.
Explanation: you can find amino acids on earth from food that is filled with protein . Meat eggs and nuts are good options.
Answer: Growth hormone is released into the bloodstream from the anterior pituitary gland. The pituitary gland also produces other hormones that have different functions from growth hormone. Growth hormone acts on many parts of the body to promote growth in children.