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lisabon 2012 [21]
4 years ago
13

Two children on roller skates stand facing each other. The child on the right puts her arms out and pushes away from her partner

what’s the action and reaction ?
Biology
1 answer:
Veseljchak [2.6K]4 years ago
6 0
The action was the child pushing away from her partner. The reaction is her skidding away backwards (and bumping into a wall).
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Mechanical waves can travel only though a _______________ such as a solid, liquid, or gas.
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Select the endocrine organ from the drop-down menu that matches with its hormone.
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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

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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.

8 0
3 years ago
What is a single celled organism able to do?
photoshop1234 [79]

Answer:

The one cell of a unicellular organism must be able to perform all the functions necessary for life. These functions include metabolism, homeostasis and reproduction. Specifically, these single cells must transport materials, obtain and use energy, dispose of wastes, and continuously respond to their environment.

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The new gene scientists added to Caldicellulosiruptor bescii that is transcribed and translated to produce an enzyme named bifun
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Answer:

<em>It acts as a catalyst, lowing the activation energy and speeding up a reaction.</em>

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The acetaldehyde alcohol dehydrogenase is used to turn acetaldehyde to ethanol.

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