The only cells in the body that produce leptin are _______ cells.

Answer:

D

Explanation:

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The uninoculated tube is considered to be a negative control because a negative control is an effect of having to show no response. Am uninoculated control is where  organisms are not being inoculated such as having a culture bacteria of not being inoculated with an organism.

Nucleic acids are polymeres composed of several monomers known as nucleotides. RNA and DNA are Nucleic Acids. Option C

Nucleic acids are large molecules composed of monomers named nucleotides attached to each other by covalent bonds.

These polymers are DNA and RNA, and their nucleotides are composed of nitrogenated bases, sugar groups, and phosphate groups.

DNA and RNA vary in

RNA and DNA are Nucleic Acids.

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Complete question

RNA and DNA are which type of organic compound

a) carbohydrate

b) lipid

c) nucleic acid

d) protein

Answer:

180 years.

Explanation:

To calculate this we will need to make a very simple calculation, called the "rule of three", which is a calculation used to find the ratio of three factors.

If we look at the question above, we will see that Mount Everest grows 4 millimeters per year (so in our calculation we will use the ratio 4 = 1), but we don't know how many years ago Mount Everest will grow 720 millimeters (so in our calculation we will use the proportion 720= x).

This way we will have the calculation:

4 = 1

720 = X

From this, we will imagine a diagonal line and multiply the values at the end of each line. This way we will have:

4 x X = 1x 720

As a result we will have:

4X = 720

Now we will move all numbers to one side and all letters to the other side. Since the number 4 is multiplying the letter X, it will move to the other side dividing the 720. So we have:

X = 720/4.

As a result we will have:

x = 180 years.

Answer:

What is the element's name and symbol?

Potassium (K)

Is it a metal, nonmetal, or metalloid?

Metal.

Which family does it belong to?

19 Protons, 20 Neutrons, 19 electrons

How many protons, neutrons, and electrons does its neutral atom have?

Alkali Metals

Explanation: Trust me, I'm in flvs and got full credit for this section of my 3.02 exam.

Answer:

Option B, 1000 X

Explanation:

The simple formula to find the magnification strength of compound light microscope is to multiply the magnification power of eyepiece lens by the objective lens power.  

For example – if an eyepiece has power of10x and objective lens has power of  20x , then the highest magnification could be 10 X 20 i.e 200

However, the maximum magnification power of a lens is 1000x

Thus, option B is correct

Answer:

B. Their background or traits,rather than their individual performance

Explanation:

The answer is A. V-shaped trench and B. A bioluminescent fish (apex)

Many deep-sea species use bioluminescence as a lure to draw in food, including angler fish and viper fish. The area of the ocean that is found inside ocean trenches with a V-shape is known as a zone, also known as the mesopelagic zone. Thus option A and B is correct.

Underwater robots known as submersibles are launched from a ship into the water, where they record and gather data from the ocean's water column and seafloor for scholarly examination.

For three to four months at a time, nuclear submarines can sustain operation underwater and traverse oceans with ease.

The depth of endurance below is unmatched by any conventional submarine, notwithstanding the fact that few can go the distance.

The ability to locate and strike surfacing submarines is therefore rather straightforward.

Therefore,  submarine encounter with a bioluminescent fish and V-shaped trench in deep ocean.

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Answer:

it is 1: nucleic acids

      2: DNA

       3:RNA

Explanation:

It was in my lesson too so i hope this helps

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Advances in science and technology have contributed significantly to the production of food in the world. Production capacity in agriculture has grown by 2.5 to 3 times over the past 50 years. This allowed, at a global level, that the increase in food production accompany the population increase.

An example of how technology has contributed to the increase in food production in the world is Transgenia. Through transgenic seeds, it was possible to plant crops that are more resistant to pests and to periods of drought, in addition, the transgenic crop has created crops with greater productivity. This has contributed greatly to the increase in food production.

Another example is the use of increasingly technological agricultural machinery, which can carry out agricultural work faster and more efficiently, reducing agricultural losses and contributing to increased production.

Cells spend most of their time dividing or in mitosis. It is true that cells spend most of their time dividing. In fact, they spend 78% of their "life" in interphase. Thus, the given statement is true.

Cell cycles has been argued so far in this branch development in diploid daughter cells with identical genetic complements. Meiosis, in contrast, is a specialized kind of cell cycle that disrate the chromosome number by half, the outcome in the production of haploid daughter cells, throughout meiosis I, homologous chromosomes first pair with one another and then segregate into dissimilar daughter cells.

Egg and sperm cells have just 23 chromosomes each. That's half as many chromosomes as regular cells. Through the process of fertilization, egg and sperm join to make a cell with 46 chromosomes (23 pairs), called a zygote. For each chromosome pair, one homologous chromosome came from each parent.

During sexual reproduction two sex cells fuse to make a fertilized cell with one set of chromosomes the true about number of chromosomes is that the Egg and sperm cells have just 23 chromosomes each.

Therefore, Cells spend most of their time dividing or in mitosis. It is true that cells spend most of their time dividing. In fact, they spend 78% of their "life" in interphase. Thus, the given statement is true.

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Final answer:

A dog wags its tail intentionally through muscle control; however, in the case of a very heavy tail, this could affect the dog's balance. To describe a dog to someone without sight, use sensory details beyond visuals. Lastly, although dogs communicate through barks and tail wags, this is not equivalent to human language.

Explanation:

The question appears to be asking whether the physical act of tail wagging in a dog with a particularly large or "massive" tail can cause the dog's body to move involuntarily as a result of tail movement (often humorously referred to as "the tail wagging the dog"). From a biological standpoint, a dog controls its tail via muscles at the base of the tail, meaning the dog intentionally wags its tail but does not typically move its entire body as a reflex of tail wagging. However, in practical terms, if the tail was significantly heavy, it could influence the dog's balance or body position, especially in a smaller dog or a dog with an abnormally large tail.

When explaining the experience of a dog to someone without sight, it is important to focus on sensory descriptions beyond the visual. Describing the dog's firm body, various textures of the fur, the swishing sound of a wagging tail, and the warmth of the animal can help in painting a more tangible picture of a dog's physical characteristics and presence.

As for animal communication, it's important to note that while animals do communicate with each other, their communication methods are not equivalent to human language. A dog's bark or tail wag is a form of non-verbal communication that conveys excitement, curiosity, or other emotions, but it doesn't translate directly to human spoken words.

Final answer:

The metabolic rates of mammals are not directly comparable based on square meters of body surface area. Smaller mammals have higher metabolic rates per body weight because of their greater surface area-to-volume ratio.

Explanation:

The metabolic rates of mammals are not directly comparable when based on square meters of body surface area. Smaller mammals, such as mice, have higher metabolic rates per body weight compared to larger mammals, such as elephants. This is because smaller animals have a greater surface area-to-volume ratio, leading to more heat loss and therefore requiring more energy to maintain a constant body temperature.

Answer:

False.

Explanation:

Phospholipid tails are hydrophobic, which means that they are repelled by water.

Thus, each phospholipid contains a hydrophobic portion (tails) - represented by fatty acids - and a hydrophilic portion (head) - corresponding to the phosphate group and its associated molecules. A notable fact is that, when placed in water, the phospholipid molecules can assume the shape of a sphere, known as micelle: the polar, hydrophilic portions are distributed in the periphery, while the hydrophobic tails, the tails, are in the inside the micelles away from the water.

Phospholipids are amphipatic molecules composing cell membranes. Their heads are hydrophilic, while their tails are hydrophobic. The statement phospholipid tails are hydrophilic and are attracted to water is false.

Phospholipids are amphipathic molecules arranged in cell membranes. They have

In the membrane, phospholipids can easily change places with other lipids by lateral diffusion in the same layer.

They can also diffuse transversally to the other layer but not as easily as lateral diffusion.

There are also other lipidic movements as rotational diffusion that imply the rotation of the molecule.

The statement Phospholipid tails are hydrophilic and are attracted to water is false. Tails are hydrophobic and reject water.

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