the secretion of which hormone is an example of a positive feedback mechanism? insulin estradiol parathormone catecholamines

Answers

Answer 1
Answer:

pretty sure it's Catecholamines


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How could you identify the unmarked poles of a magnet?

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Answer: A magnet has two poles that is north pole and south pole. From the directional property of the magnet, we know that whenever a magnet is freely suspended, it is always aligned along the north and south direction of the earth.

It can also be identified using a test magnet whose poles are already known. From attraction property of magnet, we know that unlike poles attract with each other and like poles repel each other. Therefore, the pole of unknown magnet that attract to the south pole of the known magnet will be north pole and the other will be south pole.

Thus, by freely suspending the magnet and by using a test magnet, the unmarked poles of the magnet could be easily identified.

You can identify the unmarked poles of a magnet using different techniques.
1) Get a marked magnet to know the north and south poles of the unmarked magnet. North of the marked magnet attracts the south of another magnet.
2) Using a compass - the north of the unmarked magnet aligns tot he north of the compass

What is one of the primary functions of this food in the body?

Answers

Food is important for life.to be healthy and active we should certainly have enough food.But the food we eat should be safe and rich in all the nutrients  our body needs.Also you can build new cells and tissues  fro growth.

Answer:

building proteins, i think i'm just taking the test

Explanation:

good luck

How many nitrogen bases make up a codon and what does it represent?

Answers

3 bases make up a codon that specifies for a specific trait.

Final answer:

A codon is made up of three nitrogen bases in an RNA molecule, each coding for a specific amino acid. It is an essential concept in understanding the production of proteins.

Explanation:

A codon in the biological context consists of three nitrogen bases. These nitrogenous bases are part of an RNA molecule. The bases can be adenine (A), guanine (G), cytosine (C), or uracil (U). Each codon represents and codes for a specific type of amino acid. As a result, a sequence of codons provides instructions for the construction of a protein. This is vital to understanding the central dogma of molecular biology—DNA makes RNA and RNA makes protein.

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The three basic principals of training that are the foundation for developing a successful personal fitness program are ________________ A. overload , progression and specificity B. Endurance , strength and agility C. overload , frequency and progression D. cardiovascular training , strength training and flexibility

Answers

Overload, progression and specificity are the three basic principals of training that are the foundation for developing a successful personal fitness program.

Final answer:

The three basic principles of a successful personal fitness program are overload, progression, and specificity. This incorporates increasing exercise stress (overload), progressing exercise intensity gradually (progression), and aligning exercises with desired fitness goals (specificity).

Explanation:

The three basic principles of training that lay the groundwork for developing a successful personal fitness program are overload, progression, and specificity. Overload refers to increasing the amount of exercise or stress placed on the body to promote adaptation and improve fitness. Progression implies the gradual increase of the exercise intensity, frequency, or time, ensuring that the body is constantly challenged but not overworked. Specificity denotes the requirement for exercises to be specific to the muscles or fitness component that one desires to improve.

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List the tools and materials that could be probably be used in building the product . Maximum of the tools and two materials

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Answer:

Tools:

1.Hammer: A hammer is an essential tool for driving nails, securing joints, and making adjustments to various parts of the product.

2.Screwdriver Set: Screwdrivers of different types (flathead and Phillips) and sizes are necessary for assembling and disassembling components that are fastened with screws.

Materials:

1.Wood: Wood is a versatile material commonly used in construction and DIY projects. It can be used for building the main structure or frame of the product, providing stability and support.

2.Metal Brackets: Metal brackets are used to reinforce joints and connections in the product. They add strength and durability to critical areas, ensuring the product remains stable and safe for use.

Why do deserts tend to form on land at latitudes of 20-30 degrees north and south?

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Answer:

Deserts can form even on tropical coasts beside cold ocean currents, such as the west coast of South America. The currents cool the air, which then rises and warms as it moves over land, drawing up moisture that is later precipitated as the air moves farther inland.