7. What base in DNA pairs with adenine?
A. thymine
B. guanine
C. uracil
D. cytosine

Answer:

It will take 83 days to recover the extra cost

Explanation:

To determine the length of time it will take to recover the extra cost, it will be logical that we compare the $200 extra cost to the total savings in running cost made for a year and covert this into days

The total savings in running cost is the cost savings per hour multiplied by the number of hours in a year.

The calculations are set below:

Savings in running cost per hour = $0.1

Total savings in a year = 365 days ×  $0.1 × 24 = $876

Extra cost of Energy Star refrigerator = $200

If total savings for a year is  $876 , then equivalent length of time to save $200 would be

Length of time = 200/876 × 365 days = 83 days

It will take 83 days to recover the extra cost

Explanation:

Answer:

3

Explanation:

i believe, they are composed of monomers that are amino acids-

Answer:

the right hemisphere

Explanation:

Answer:

C sorry if im wrong

Explanation:

.

Answer:

21- B

22- A

23- C

Explanation:

Answer:

1. B 2. A 3. C

Explanation:

The rate at which the concentration of the drug in the blood is changing 6 hours after swallowing the pill is approximately -0.16 units per liter of blood per hour.

To compute the rate at which the concentration is changing 6 hours after swallowing the pill, we need to find the derivative of the concentration function, d(t), with respect to time (t).

Using the quotient rule, the derivative of d(t) with respect to t is:

d'(t) = \([(5t^2 + 125)(350) - (350t)(10t)] / (5t^2 + 125)^2\)

Now, we can substitute t = 6 into the derivative expression to find the rate of change at 6 hours:

d'(6) = \([(5(6)^2 + 125)(350) - (350(6))(10(6))] / (5(6)^2 + 125)^2\)

Evaluating the expression, we find:

d'(6) ≈ -0.16

The resulting value is approximately -0.16 units per liter of blood per hour.

The negative sign indicates that the concentration of the drug is decreasing over time. This implies the drug metabolism or elimination from the body, leading to a decline in its concentration in the blood. The magnitude of the rate (-0.16) signifies the speed or intensity of the concentration change, indicating a relatively moderate decrease in the drug's concentration 6 hours after ingestion.

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Answer:

\(\boxed {\boxed {\sf C. \ Sensors}}\)

Explanation:

There are two divisions of the nervous system: the central and peripheral.

The central nervous system (CNS) is made up of the brain and spinal cord. This section processes information gathered from the sensory organs.

The peripheral nervous system (PNS) is divided into the autonomic and somatic, with different functions. Regardless of the subdivision, the PNS is made up of all the nerves and sensory receptors. The nerves are connected to the brain and spinal cord, which allows them to pass information from the PNS (where it is gathered ) to the CNS (where it is processed).

So, the spinal cord (choice A) and brain (choice B) are parts of the central nervous system, not peripheral. The correct answer must be C. sensors

Answer:

C) Sensors

Explanation:

I hope this helps, I took the test :D Have a great day/night!

False. While lymphocytes and leukocytes are both types of white blood cells, they do not necessarily appear most often beneath the junctional epithelium.

The junctional epithelium is a thin layer of cells that connects the tooth surface to the gingiva, and it is an important barrier against bacterial invasion. While immune cells like lymphocytes and leukocytes do play a role in defending against bacteria and other pathogens in the oral cavity, they are not limited to the junctional epithelium. These cells can be found throughout the oral mucosa, including in the gingival crevicular fluid and in lymph nodes in the head and neck region. In fact, the distribution of immune cells in the oral mucosa is complex and depends on a variety of factors, including the presence of specific pathogens, the overall health of the individual, and the activity of the immune system at any given time.While lymphocytes and leukocytes are both types of white blood cells, they do not necessarily appear most often beneath the junctional epithelium.

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The Cyanocytta crystal commonly known as a Blue jay is native of eastern North America, it lives in deciduous and coniferous forests, though can be found in certain urban areas. It feeds mostly on seeds, sometimes even stockpile generating seed banks, or on rare occasions can feed on small invertebrates and vertebrates si can be considered as mainly a primary consumer.

Answer:

Because when you metabolize something you adsorb it's nutrients.

Explanation:

Is self-explanatory. Look at the answer...

Clay would get angry very quickly when he was a teenager but now in his fifties, it takes a lot to make him angry. This is primarily because Clay's levels of the hormone testosterone have decreased. So the correct option is a.

Studies have shown that higher testosterone levels and lower cortisol levels are associated with higher levels of anger. And as the age of a person (here a male) increases then the serum testosterone levels decline with age.

Age-related testosterone decline is due to the waning of both testicular and hypothalamic-pituitary functions. Although it is a slow decline. More than 33% of men over 45 may have lower-than-normal testosterone levels.

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Answer:

Intervention in God's creation.

Explanation:

''Playing God” is the ethical perspective of food biotechnology because in food biotechnology genetic modification occur which involve human intervention into creation of God and hence, is an unnatural act. Intervention in the God's creation is considered as unethical act of humans. So we can say that food biotechnology has ethical perspective which make it controversial.

Answer:

None of the above

Explanation:

Answer:

The product of the reaction between nitrogen (N) and (CL) is nitrogen trichloride (NCl3)

Explanation:

Although by seeing the question's answer choices, I think it was an error to detect the question (image) by Brainly as 2 of the answers is written the same.

However, when nitrogen gas reacts with chlorine gas, the product is gaseous nitrogen trichloride (NCL3), I guess 1 of your answer must be NCL3.

Answer: Tissue that carries messages throughout our bodies is called nerves. Nerves conduct electrical impulses between the brain and brain stem to all parts

The wrong definition is; Coenzymes are protein components which assist some enzymes in catalysis. Option A is correct.

The statement is incorrect because coenzymes are non-protein organic molecules that often work with enzymes to facilitate catalysis. They are not protein components, but they can bind to enzymes and participate in the catalytic reaction. Coenzymes often function as carriers of specific functional groups, electrons, or chemical moieties, which are transferred from one reaction to another in the enzymatic reaction. Examples of coenzymes include NAD⁺, FAD, and coenzyme A.

Enzymes are proteins that act as catalysts to increase the rate of chemical reactions in the cell. Enzymes work by binding to specific molecules called substrates at their active site, which is the region of the enzyme where the catalytic reaction occurs. Enzymes lower the activation energy required for a reaction to occur, which allows the reaction to proceed more quickly and efficiently.

Hence, A.is the correct option.

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--The given question is incomplete, the complete question is

"Which of the following definitions is wrong? The active site is the area of an enzyme where substrate binding and catalysis occur a) Coenzymes are protein components which assist some enzymes in catalysis b) Enzymology is the study of enzyme structure, function and catalytic mechanism c) Activation energy is the minimum energy required for a specific reaction to proceed d) Quantum tunnelling is a phenomenon by which small reactants become product without possessing the classical activation energy"--

The fat and connective tissue that encircle beef steak form the endomysium : False.

Connective tissues are that type of tissue in the body that provide support and structure to other tissues and organs and they are characterized by having matrix or ground substance, that is secreted by cells of the tissue and may contain fibers such as collagen, elastin or reticular fibers.

Endomysium is a layer of connective tissue that surrounds individual muscle fibers but not beef steak. Fat and connective tissue that encircle a beef steak are typically referred to as marbling or intermuscular fat.

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Answer:

c.arterioles

Explanation:

Answer:

what defenition? of the word transpriction or...?

Answer:

Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.

Explanation:

Answer:

K donates, or transfers, one electron to bromine, which has 7 electrons. Both K and Br are now stable with 8 electrons. K becomes a positive ion and Br becomes a negative ion. The positive K ion and the negative Br ion attract each other to form an ionic bond.

Explanation:

pls mark me brainiest

Answer:

Potassium has 1 valence electron and bromine has 7 valence electrons, meaning potassium to lose 1 and bromine needs one more valence electron. So, potassium would donate the one valence it has and give it to bromine so bromine has 8 valence electrons and so does potassium.

Explanation:

As we can see in the punnet square we have a recessive homozygous and a dominant homozygous, in the possible combinations that can have the offspring, that is to say the letters inside square we can see that all are heterozygus, e

Answer:

Structure and is found in tendons, bones, and ligaments.

Communication and works as chemical messengers such as hormones.

Defense as in antibodies.

Transportation and are embedded in the cell membrane to allow substances to move across the cell membrane.

Enzymes that lower the activation energy of a reaction.

Contraction to allow muscle and cell contraction/movement.

Explanation:

Proteins serve many functions in living organisms.

Structure: The most abundant protein in mammals is collagen and is found throughout the body. In a major component of connective tissue such as skin, ligaments, and tendons providing strength and elasticity to these tissues. It is found also mineralized in bones and teeth.

Proteins function as hormones which are chemical messengers that mediate many cellular responses in the body. For example, the hormone insulin is a protein.

Proteins functions in the body's immune system as antibodies which recognize and initiate immune responses against diseases. The immunoglobulin such as immunoglobulin A and G are proteins.

Proteins serves as transporters to move substances across the cell memebrane. Some are found as peripheral or integral membrane proteins. Examples of transport proteins are the glucose transporters, Glut-1, Glut-2 and Glut-4 transporters.

Enzymes are proteins which catalyse the chemical reactions tanking place in an organisms. Various enzymes in the body include the hydrolases, the ligands, the leases, etc.

Contraction of the actin filaments of the muscle which are proteins, allow muscle and cell contraction bringing about movement.

A Note on the other options.

Eicosanoids are lipid molecules which serve various functions such as in regulation of blood pressure or inflammation.

Steroids such as cholesterol are lipid-derived molecules.

Glycogen for energy storage in muscles is a storage form of glucose, a carbohydrate.

The model represent the change in the DNA content of a cell during the cell cycle. The part of the model represents the S phase is phase II

What is cell cycle?

The cell cycle, also known as cell-division cycle, is described as the series of events that take place in a cell that cause it to divide into two daughter cells.

Before cell division and during the interphase, the cell DNA replicates. This event only occurs in the S phase, together with histones and other proteins synthesis.

In the attached image, we will notice a  graph showing the DNA content during the cell cycle, which is, how much DNA there is in the cell as the cycle goes on.

X axe ⇒ Phases ⇒   I, II, III phases

Y axe ⇒  Complete sets of DNA in the nucleus ⇒ 1 and 2 sets

The exponential growth occurs during the second phase, II. We can then  see how DNA content enhances from one single set to two sets of DNA.

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D.

Mediterranean/chaparral

Enzyme activity can be determined (b) by measuring how much of the substrate is consumed aces and (c) by measuring how much of the product is produced O determining when the amount of substrate is equal to the amount of product.

Usually, the purpose of cultivating bugs in a plant is to increase enzyme activity. A biological catalyst is an enzyme. They decrease activation energy, just like other catalysts, enabling processes to go in the desired direction.

They are often sensitive to the temperature, pH, and salt content of the environment they function in since their action depends on the folding of a protein. There are few exceptions to this rule, such as the enzymes used in washing powder, but generally speaking, activity may be reduced (reversibly) when slight departures from their tolerance limits occur.

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Dunes form from sediment deposition on the beach in response to wind and ocean currents. When sand grains are transported by the wind, they settle on the leeward slope and accumulate over time to form dunes. Dunes start as embryonic foredunes and develop into mature and stabilized sand dunes as a result of plant colonization.

The formation of dunes is a result of a process called dune building. Sand dunes on barrier islands are formed in successive stages. The first stage is the embryonic stage where the sand dunes begin to form. The second stage is the foredune stage where sand dunes form close to the beach. The third stage is the backdune stage where sand dunes are farther from the beach and the vegetation has grown more.

The last stage is the climax stage where the sand dunes have reached their final height and the vegetation is at its fullest. There are various plant species that can be seen as one moves through the dunes on a barrier island on the Georgia Coast. These include: Beach morning glory (Ipomoea pes-caprae) on the foredune in the embryonic stageSea oats (Uniola paniculata) and sea rocket (Cakile edentula) on the foredune in the foredune stageSouthern live oak (Quercus virginiana), yaupon holly (Ilex vomitoria), and American beachgrass (Ammophila breviligulata) in the backdune in the backdune stage Saltmeadow cordgrass (Spartina patens) and marsh elder (Iva frutescens) in the climax dunes in the climax stage.

This type of succession is known as primary succession, which is the development of plant communities in areas that have not previously supported life.

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Answer:

True

Explanation:

Soil consists of organic and inorganic matter

Answer:

It is feasible to extrapolate the outcomes when the cellular mechanisms are the same, but in vivo experimental evidence is required to confirm these results

Explanation:

In molecular biology, it is a routine activity approach to obtain conclusions by using cell lines and then extrapolate outcomes to in vivo studies. However, it is imperative to obtain the confirmation in vivo showed in in vitro conditions (i.e., in vitro results can be used as a working hypothesis). The scientific method is a rigorous process that enables the extrapolation of the results from in vitro experiments when we have the correct model information (although is required to confirm positive findings in the real model).