Can someone please help me with this?
Answers
All the glands do release quite a lot of hormones that have different functions. They are discussed below.
Explanation:
Pituitary gland is called the orchestra of endocrine system of human body. It secretes a lot of hormones namely
A. Growth hormone - it acts all over the body, helping in overall growth.
B. Thyroid Stimulating Hormone - acts on Thyroid gland, stimulating the release of Thyroid hormones.
C. Follicle Stimulating Hormone - Acts on germ mother cells to produce new cycles in females and new sperms in males.
D. Adreno Cortico Trophic Hormone - Acts on adrenal cortex gland helps in secretion of its hormones.
E. Luteinizing hormone - acts on interstitial cells of Leydig cells in males and corpus luteum in females to secrete testosterone and progesterone respectively.
F. Prolactin - it acts on mammary glands to secrete breast milk.
G. Oxytocin - it helps in labour and acts on uterine muscles.
H. Vasopressin - it acts on kidneys to reabsorb water.
Thyroid glands secrete Thyroxine and triiodothyronine acting on all cells of body for overall growth.
Adrenal Cortex secrete cortisol acting on all body cells, angiotensin and aldosterone acting on kidneys. Adrenal Medulla secretes adrenaline, nor adrenalin and dopamine which also acts on all body cells.
Pancreas secretes insulin, glucagon and somatotrophin which acts on all body cells, mainly muscle cells and adipocytes.
Ovary secretes Oestrogen, and progesterone acting on mainly all body cells, mainly in uterus.
Testis secretes testosterone which acts on all body, mainly on sperm mother cells.
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So,
There are two basic types of changes in chemistry: physical changes and chemical changes.
Physical changes do not change the chemical identity of the substance; instead physical changes operate between molecules/atoms/ions/etc. Changes of phase and separation of different substances in a mixture are examples of physical changes. For example, when you change the phase of liquid water to gas, you are operating between the water molecules by breaking the intermolecular attractions. Yet you still have water, H2O. When you separate iron filings from a mixture of sand and iron filings with a magnet, you are, in a way, operating between the atoms of iron. Yet you still have iron and sand.
Chemical changes change the chemical identity of the substance. When you throw salt into water, the salt dissolves and is no longer salt. You get salt water, which is chemically different from water and salt. You have operated inside the salt compound.
Thus, changing matter from one form to another without a change in chemical properties would be a physical change.
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Answer:
Yes
Explanation:
The tilt of the Earth means the Earth will lean towards the Sun (Summer) or lean away from the Sun (Winter) 6 months later. In between these, Spring and Autumn will occur. The North pole always points the same way as the Earth revolves around the Sun.
Answer:
Yes!
Explanation:
The Earth takes 365.24 days to orbit the sun, as we move around the Sun during the year, the amount of light each area of the planet receives varies in length. When the Earth’s axis points towards the Sun it is summer and when the Earth’s axis points away from the sun it is summer. So while the sun is rotating in between the times of the 6mths to get from one season to the other we have spring and autumn. The earth’s movement around the sun causes the seasons, but it does not affect the temperatures during the seasons. Fun fact many people believe that the temperature changes based on the sun, however during the summer months the earth is further away from the sun in July and closest to the sun in January in the winter months.
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Answer:
Explanation:
It is unchanged.
Explanation:
This is an excerpt from my lesson in science:
In an ionic compound, every ion is attracted to ions of opposite charge that surround it. It is attracted to ions above, below, and to all sides. The pattern formed by the ions remains the same no matter what the size of the crystal.
In a single grain of salt, the crystal pattern extends for millions of ions in every direction. Many crystals of ionic compounds are hard and brittle due to the strength of their ionic bonds and the attractions among all the ions.
Hence, it is unchanged. (Brainliest Please and 5 stars)
Answer:
It is unchanged
Explanation: gradpoint
The pattern formed by the ions remains the same no matter what the size of the crystal.
Which conclusion is best supported by Daniel’s observations and discoveries?
Star X is more luminous than both stars Y and Z.
Star X is more luminous than star Z, but not star Y.
Star Y is more luminous than star X.
Star Z is more luminous than star Y.
PLEASE HELP
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Answer:
The Answer is A) Star X is more luminous than both stars Y and Z.
Explanation:
it just is
Answer: A. Star X is more luminous than both stars Y and Z.
Explanation: Edge 2021