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Deffense [45]
3 years ago
8

Is this statement true or false?

Biology
2 answers:
matrenka [14]3 years ago
8 0

Answer: False

Explanation:

It's the opposite! Hot, less material rises while the cold, more dense material sinks

beks73 [17]3 years ago
6 0

Answer:

FALSE

Explanation:

The materials like magma when heated at great depth in the mantle due to the heat energy provided by the interior of the earth, it gets warm and less dense. This materials then starts to rise up due to the force generated by the magma in the upward direction. This hot magma then rises up and eventually cools due to the lowering of temperature in the upper portion of the mantle. This materials after being cooled, becomes less dense and sinks.

This process takes place in a form of a convection cell.

Hence, the above statement is false.

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This is a molecule of glucose, a simple carbohydrate. If this molecule were broken down, would it provide all of the elements ne
PolarNik [594]

Answer:

The correct answer is - no.

Explanation:

Carbohydrates are made up of thee elements carbon, hydrogen, and oxygen so if the carbohydrate is completely broken down it will release these elements.

Lipids are made up of similar elements as glucose however, they also contain sulfur and phosphorus. Similarly for proteins and nucleic acid nitrogen, nitrogen sulfur, and selenium other than the elements released by glucose.

Thus, the correct answer would be - no.

3 0
3 years ago
The duct system atop each testis where sperm mature is the __________.
statuscvo [17]
<span>In the duct system the atop testis where sperm mature from is known as the epididymis</span>
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3 years ago
Which membranes line the passageways that open to the exterior of the body, including those of the respiratory, digestive, repro
jenyasd209 [6]

Mucous membranes line the passageways that open to the exterior of the body, including those of the respiratory, digestive, reproductive, and urinary systems in the body.

A mucous membrane or mucosa is a membrane that lines various cavities in the body of an organism and covers the surface of internal organs. It consists of one or more layers of epithelial cells overlying a layer of loose connective tissue.

It is mostly of endodermal origin and is continuous with the skin at body openings such as the eyes, eyelids, ears, inside the nose, inside the mouth, lips, the genital areas, the urethral opening and the anus. Some mucous membranes secrete mucus, a thick protective fluid. The function of the membrane is to stop pathogens and dirt from entering the body and to prevent bodily tissues from becoming dehydrated.

One of its functions is to keep the tissue moist (for example in the respiratory tract, including the mouth and nose).  It also plays a role in absorbing and transforming nutrients.  

Mucous membranes also protect the body from itself. For instance, mucosa in the stomach protects it from stomach acid and mucosa lining the bladder protects the underlying tissue from urine. In the uterus, the mucous membrane is called the endometrium, and it swells each month and is then eliminated during menstruation.

Learn more about Mucous membranes here : brainly.com/question/26244782

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8 0
1 year ago
Levene made which contribution to our understanding of DNA structure? a. He determined that the nucleus contains DNA. b. He dete
Stels [109]

Answer:

The correct answer is  b. He determined that DNA contains four nitrogenous bases.

Explanation:

Levene was an American biochemist who studied the structure of DNA in the early 1900s and in 1920 he found that DNA consists of four nitrogenous bases that are Adenine, Guanine, Thymine, Cytosine.

He also found deoxyribose sugar and phosphate group and said that nucleotide is the basic unit of DNA which contains a ribose sugar with attached nitrogenous base and phosphate group.

He also concludes that an equal amount of adenine, guanine, thymine, and cytosine makes the DNA which is now known as tetranucleotide hypothesis. So the correct answer is b. He determined that DNA contains four nitrogenous bases.  

8 0
3 years ago
What group of potential products must be tested in clinical trials before it can be marketed?
Hunter-Best [27]
<span>Any type of pharmaceutical product or dietary supplement must be tested in clinical trials before they can be marketed in order to assess their safety for the general public's consumption and to confirm their intended purpose. While not a complete fail safe, these tests intend to prove a reasonable sense of safety for the product.</span>
7 0
3 years ago
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