Answer:
D
Explanation:
The correct answer would be <u>Nucleic Acid</u>.
A typical nucleic acid has 3 components which include:
- A purine or pyrimidine nitrogenous base
- A phosphate group
- A 5-carbon sugar
The purine base includes adenine and guanine while the pyrimidine base includes thymine/uracil and cytosine. The 5-carbon sugar could be ribose or deoxyribose depending on if the nucleic acid is ribonucleic or deoxyribonucleic acid.
<em>The only macromolecule that contains the 3 components of the options A to D is the nucleic acid. Hence, the correct option is </em><em>D.</em>
Ice
what did you think, it leaves ice
Answer: The options were missing, but the endocrine organs that secret each gland are:
Pituitary gland: Thyroid-stimulating hormone
Pituitary gland: Adrenocorticotropic
Hypothalamus: Gonadotropic
Pituitary gland: Prolactin
Pituitary gland: Growth hormone
Thyroid gland: Thyroxine
Thyroid gland: Calcitonin
Thyroid gland: Triiodothyronine
Hypothalamus: Antidiuretic
Hypothalamus: Oxytocin
Adrenal gland: Glucocorticoids
Adrenal gland: Mineralocorticoids
Adrenal gland: Epinephrine
Pineal gland: Melatonin
Thymus gland: Thymosins
Pancreas: Insulin
Pancreas: Glucagon
Explanation:
- The pituitary gland, also known as the hypophysis, produces the thyroid-stimulating hormone, the adrenocorticotropic, prolactin, and growth hormone. The hypophysis has two parts, the anterior one and the posterior one. The anterior one secretes these hormones thanks to the action of hormones that comes from the hypothalamus.
- The hypothalamus, which is a gland that is in the brain, produces:
gonadotropic, antidiuretic, and oxytocin. Once produced, they are stored and secreted by hypophysis. In this case, these hormones are in the other portion of the hypophysis, the posterior part. The hormones act in the reproductive system.
- The thyroid gland, which is in the neck, produce and secretes:
thyroxine, calcitonin, and triiodothyronine. The calcitonin controls calcium concentration, while the thyroxine and triiodothyronine impact the cells' metabolism.
- The adrenal gland is above the kidneys. It secretes Glucocorticoids, Epinephrine, and Mineralocorticoids. The mineralocorticoids regulate the concentrations of water and salt in our body; glucocorticoids have many functions, one is fighting inflammation; lastly, epinephrine, also known as adrenaline, is released in a fight or flight reaction.
- The pancreas is an organ and a gland. As a gland, it secretes glucagon and insulin to regulate the concentration of glucose in the blood.
- The pineal gland is on the brain. This gland secretes melatonin, which is a hormone that helps us to sleep.
- The thymus gland is in the chest, and it produces a hormone called thymosin. This hormone helps in the production of leucocytes, which the thymus produces.
Mutations and natural selection cause adaptations. Mutations can cause instant adaptations, while natural selection is the process by which adaptations occurs over a series of generations.
Adaptations are changes or processes of changes by which an organism or species becomes better suited for its environment.
