B. testosterone
C. estrogen
D. insulin
The hormone does the pineal gland release A. melatonin. Therefore , A. melatonin is correct .
Pineal Gland: The pineal gland is located deep within the brain, in the epithalamus region. It is a photosensitive organ, which means it can detect changes in light and darkness.
Melatonin Production: Melatonin production is closely tied to the perception of light. When the surroundings become dark, the pineal gland is stimulated to produce melatonin, which is released into the bloodstream.
Circadian Rhythms: Melatonin is a key player in the body's circadian rhythms, influencing the sleep-wake cycle, body temperature, and various hormonal fluctuations throughout the day and night.
Sleep Regulation: The pineal gland's release of melatonin helps promote drowsiness and prepares the body for sleep. This is why melatonin supplements are sometimes used to address sleep disorders or jet lag.
Other Functions: Beyond regulating sleep, melatonin also has antioxidant properties and is thought to play a role in immune system support and the regulation of reproductive hormones.
Light Exposure: The suppression of melatonin production during the day is primarily due to exposure to natural and artificial light. This is why it's often recommended to limit exposure to screens before bedtime to help maintain healthy sleep patterns.
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Answers:
A. melatonin
Explanation:
Melatonin is a neurotropic hormone with the antioxidant group indolamina, which is synthesized by pincal glands located in the brain from the amino acid compound tryptophan.
b. monomer.
c. disaccharide.
d. polysaccharide.
Why does changing the pH of a solution affect the ability of an enzyme to catalyze a chemical reaction?
a. It destroys the substrate.
b. It changes the shape of the protein.
c. It breaks the protein into its monomers.
d. It raises the temperature of the solution.
B. Old individuals outnumber juveniles in the population as it grows.
C. The resources available are fully used by the population as it grows.
D. Natural selection changes the gene pool of the population as it grows.
Answer:
The right answe is C.
Explanation:
The limit to how large any given population could be is defined by the concept of " carrying capacity". It refers to the fact that in nature populations grow much faster than resources do, and this impose a limit to population sizes (if there is no enough nutrition sources, the number of individual can not go up).
a. Supply oxygen to cells for cellular respiration
b. Circulate blood through the blood vessels
c. Rid the blood of water and metabolic wastes
d. Decrease moisture stored in the blood and lungs
The respiratory system's primary job is to provide cells with oxygen so they may respire. This procedure entails absorbing oxygen from the atmosphere, delivering it to the body's cells, and exhaling carbon dioxide as waste.
The cells utilise the oxygen to produce ATP (adenosine triphosphate), which is a kind of energy. The cells then use this energy to perform a variety of tasks. The body's blood circulation is aided by the respiratory system.
It achieves this by assisting in the pumping of oxygen-rich blood to the rest of the body through the diaphragm. By doing this, it is possible to guarantee that the body's cells get enough oxygen. Finally, the respiratory system helps rid the metabolic wastes and a body of water.
Carbon dioxide, a waste product of cellular respiration, is exhaled to accomplish this. This enables the body to operate effectively by preserving thae right balance of water and metabolic wastes. In conclusion, the respiratory system's primary job is to provide cells with oxygen so they may respire.
Additionally, it aids in blood circulation throughout the body and removes water and metabolic wastes.
Learn more about metabolic wastes at:
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Answer:
Supply oxygen to cells for cellular respiration.
Explanation:
took the test
The four macro molecules are nucleic acid, carbohydrate, proteins, and lipids.
Structure:
1. Nucleic acids: Contain N in rings, nucleotides made of sugar, phosphate and nitrogenous base
1. Carbohydrates: Made of C,H, and O; –OH's on all carbons except one
2. Lipid: Made of C,H, and O; lots of C-H bonds; may have some C=C bonds (unsaturated)
3. Protein: Contain N, have N-C-C backbone
Function:
1. Nucleic acids: Stores and transfers info
2. Carbohydrates; Store energy, provide fuel, and build structure in body, main source of energy, structure of plant cell wall
3. Lipid: Insulator and stores fat and energy
4. Protein: Provide structural support, transport, enzymes, movement, defense.
The 4 types of Macromolecules:
- Carbohydrates: Compound made of Carbon, Hydrogen, and oxygen. Their main functions are for Energy, Storage, and structure. There are 3 types of carbs; Monosaccharides, Disaccharides (Which are both simple sugars), and Polysaccharides (Which are starches).
- Lipids: Compound that contains mostly carbon and hydrogen. Their main functions are to store energy, Insulate the body, surround and protect cells, regulate cell activity, and provide structure and Transmit information. They are well known as Fats (solid at room temp.) & oils (Liquid at room temp.) phospholipids, and Steroids.
- Proteins: Compound made of Carbon, Hydrogen, and Nitrogen. Their main functions are for transport, making movement possible, providing structure and support, and speeding up chemical reactions.
- Nucleic Acids: Compound made of Carbon, Hydrogen, oxygen, nitrogen, and phosphorous. Their main function is to store and transmit genetic information, determine protein structure, and helping in building proteins. They are the blueprint for life. They include DNA and RNA, and they determine your appearance.