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Rufina [12.5K]
3 years ago
5

In males, what hormone is secreted by the hypothalamus that tells the anterior pituitary to secrete the gonadotropic hormones

Biology
1 answer:
Nata [24]3 years ago
6 0

Answer:

Gonadotropin releasing hormone

Explanation:

Gonadotropin-releasing hormone is one of the releasing hormones secreted by the hypothalamus to regulate the secretion of hormones from the anterior pituitary gland.  

At the beginning of puberty, the hypothalamus begins to increase its production of gonadotropin-releasing hormone (GnRH). The gonadotropin-releasing hormone makes the anterior pituitary to release gonadotropins in both males and females. Two gonadotropic hormones are FSH (follicle-stimulating hormone) and LH (luteinizing hormone). FSH promotes spermatogenesis in the seminiferous tubules, and LH promotes androgen production in the interstitial cells.

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Name 2 reasons it may be important for humans to know when a high or low tide is​
Alja [10]

Answer:

Here's what i think.

Explanation:

Tides can be extremely dangerous, in some places, high tide will flood caves which people otherwise wouldn't notice as flood-able. Knowing the tides can save lives of Spelunkers (people who explore caves). Another example is sailing. The tides can be important because tide can determine if your boat will be smashed against rocks, or if it is safe to dock!

4 0
3 years ago
How the muscle of the back and neck can support weight of the head for long period without tiring ?
ikadub [295]
Most people will have a minor neck problem at one time or another. Our body movements usually do not cause problems, but it's not surprising that symptoms develop from everyday wear and tear, overuse, or injury. Neck problems and injuries most commonly occur during sports or recreational activities, work-related tasks, or projects around the home.
Neck pain may feel like a "kink," stiffness, or severe pain. Pain may spread to the shoulders, upper back, or arms, or it may cause a headache. Neck movement may be limited, usually more to one side than the other. Neck pain refers to pain anywhere from the area at the base of the skull into the shoulders. The neck includes:
The bones and joints of the cervical spine (vertebrae of the neck).
The discs that separate the cervical vertebrae and absorb shock as you move.
The muscles and ligaments in the neck that hold the cervical spine together.
Neck pain may be caused by an injury to one or more of these areas, or it may have another cause. Home treatment will often help relieve neck pain caused by minor injuries.
Activities that may cause neck pain
Neck pain is often caused by a strain or spasm of the neck muscles or inflammation of the neck joints. Examples of common activities that may cause this type of minor injury include:
Holding your head in a forward posture or odd position while working, watching TV, or reading.
Sleeping on a pillow that is too high or too flat or that doesn't support your head, or sleeping on your stomach with your neck twisted or bent.
Spending long periods of time resting your forehead on your upright fist or arm ("thinker's pose").
Stress. Tension may make the muscles that run from the back of the head across the back of the shoulder (trapezius muscle) feel tight and painful.
Work or exercise that uses your upper body and arms.
Sudden (acute) injuries
Minor neck injuries may result from tripping, falling a short distance, or excessive twisting of the spine. Severe neck injuries may result from whiplash in a car accident, falls from significant heights, direct blows to the back or the top of the head, sports-related injuries, a penetrating injury such as a stab wound, or external pressure applied to the neck, such as strangulation.
Pain from an injury may be sudden and severe. Bruising and swelling may develop soon after the injury. Acute injuries include:
An injury to the ligaments or muscles in the neck, such as a sprain or strain. When neck pain is caused by muscle strain, you may have aches and stiffness that spread to your upper arm, shoulder, or upper back. Shooting pain that spreads down the arm into the hand and fingers can be a symptom of a pinched nerve (nerve root compression). Shooting pain is more serious if it occurs in both arms or both hands rather than just one arm or one hand.
A fracture or dislocation of the spine. This can cause a spinal cord injury that may lead to permanent paralysis. It is important to use correct first aid to immobilize and transport the injured person correctly to reduce the risk of permanent paralysis.
A torn or ruptured disc. If the tear is large enough, the jellylike material inside the disc may leak out (herniate) and press against a nerve or the spinal cord (central disc herniation). You may have a headache, feel dizzy or sick to your stomach, or have pain in your shoulder or down your arm.
5 0
3 years ago
Which of the following choices supports a circular economy?
stich3 [128]

Answer:

Option A

Explanation:

In a circular economy, good/services/monetary object is in continuous usage up till its maximum value. The good/services/monetary object keep on moving from one service life (one user) to other service life (other user) as they are regenerated and recovered at the end of each service life.  

In option A, thrift store has been used to its full extent in one service life and then it is donated (start of second service life)

Hence, option A is correct

3 0
3 years ago
Identify which property of water cohesion, adhesion, or heat capacity applies to each observation below.
olga nikolaevna [1]

4. Large, circular lily pads are able to float on the water's surface.

Answer: cohesion

Cohesion mean that water attracted to another water. This force will make the water to form a surface tension in the lake. Water lily has a wide and thin leaf which makes it giving a low force per area. If the force applied on the surface is not bigger than surface tension, the leaf will stay float above the water. Surface tension also the reason water spider could walk on water.


5. The temperature of the water is about 5°C, while the temperature of the air is about 21°C.

Answer: heat capacity

Water has high heat capacity. High heat capacity mean that the water will not be easily become cold or hot. It will need more energy to increase/decrease the temperature of the water. This is why the water could keep its temperature much lower than the atmosphere. This will protect the organism inside the water from an extreme temperature change.

3 0
3 years ago
Read 2 more answers
HELPPPPPPP ITS URGENT!!
Cerrena [4.2K]

Answer:

all

Explanation:

represents an observation is fact

offers an explanation is theory

defines a relationship is laws

hope it helps

3 0
3 years ago
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