What is the arrow pointing to?


A. A covalent bond

B. An ionic bond

C. A triple bond

D. A hydrogen bond

Answer: Hey, can you please give us options? It'd be helpful for us to assure the answer we give will be correct.

Explanation:

The amino residue in the globin chain is most likely to be invariant is His F8

The invariant amino acid residues is most likely to be Histidine F8. The nitrogenous component of the  i oda ole ring of histidine F8 would serve as one of the ligands to which the iron in the heme group would attach. This residues often play a pivotal role in the structure and function of both myoglobin and hemoglobin. Futthermore, it is essential for the correct binding of oxygen. Thus, substitution or replacement of this amino acid has a tendency to interfere with the binding ability of the protein and could also impact how effectively oxygen is being released. It is however, worthy of note that in these two species (myoglobin and hemoglobin) when compared several residues in both the E helix and F helix are considered invariant (they contain distal His E7).

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Answer:

In South America, Darwin saw fossils of sea animals high in the mountains.

Explanation:

This is an experiment that will be done in the laboratory. The exact protein based on the originals volumes can easily be obtained by Concentration (mg/ml) = Absorbance at 280 nm divided by path length (cm.) Pure protein of known absorbance coefficient.

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Answer:Chloroplasts,is NOT found in animal cells

Explanation:

During the first half of glycolysis, two molecules of ATPs are consumed. In the second half however, 4 molecules of ATPs are produced per glucose. If we remove the two ATPs that has been consumed, the net yield is two ATPs per glucose

Glycolytic pathway is an anaerobic process that converts glucose into pyruvate molecules and Adenosine Triphosphate [ATP]

The pathway consist of 10 steps.

During the first phase [first five steps], 2 molecules of ATP are consumed to two molecules of Glyceraldehyde-3-phosphate [GA3P] which enter the second phase of the pathway.

At the end of the second phase, 4 molecules of ATPs and 2 molecules of pyruvate are produced

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Answer: The standard limit for iron in drinking water is 0.3 mg/L

(If you wat density)

Explanation:

The Rests activity level and what happens in the Jog activity level It is lower while you are asleep and at rest and higher while you exercise.

When you exercise your muscles need extra oxygen. That's about three times more than when the muscle is resting. This need means that your heart beats faster and your pulse quickens. Frequent exercise strengthens the heart and helps circulate blood throughout the body. A stronger heart means more blood is pumped through the body each time the heart beats.

This makes the heart beat less and distributes the same amount of blood. Heart rate can increase dramatically from a resting heart rate of 60-80 beats per minute to a maximum heart rate of about 200 in young adults. Running redirects blood flow to the tissues that need it most. For example muscles in the leg, and arteries relax, and blood flow increases. Endurance exercise increases parasympathetic activity and decreases sympathetic activity in the resting human heart.

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Answer: Peripheral neuropathy, a result of damage to the nerves located outside of the brain and spinal cord (peripheral nerves), often causes weakness, numbness and pain, usually in the hands and feet. It can also affect other areas and body functions including digestion, urination and circulation.

Your peripheral nervous system sends information from your brain and spinal cord (central nervous system) to the rest of your body. The peripheral nerves also send sensory information to the central nervous system.

Peripheral neuropathy can result from traumatic injuries, infections, metabolic problems, inherited causes and exposure to toxins. One of the most common causes is diabetes.

People with peripheral neuropathy generally describe the pain as stabbing, burning or tingling. In many cases, symptoms improve, especially if caused by a treatable condition. Medications can reduce the pain of peripheral neuropathy.

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When the vacuole size for individual 1 is twice as large as individual 2, individual 1 will have higher surface area-to-volume ratio for its membrane relative to its cytoplasm.

Vacuole is the membrane bound cell organelle more prominent in plant cells. The vacuole is known to increase the surface area-to-volume ratio of the cell. Therefore larger the vacuole, larger is the surface area-to-volume ratio of that cell.

Membrane is the outer layer of the cell and cell organelles. It is made up of the lipid bilayer. It is very essential to separate the components of the cell from each other. Membrane is selectively permeable.

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The glucocorticoid receptor (GR, or GCR) also known as NR3C1 (nuclear receptor subfamily 3, group C, member 1) is the receptor to which cortisol and other glucocorticoids bind.

By interacting with mineralocorticoid and glucocorticoid receptors in the brain, corticosteroid hormones help the body adapt to stress (MR and GR). These receptors serve as important transcription factors in considerable part.

The glucocorticoid receptor controls how the body will react to stress, even though cortisol is a blatant indicator that stress is there. A mechanism that affects the production of specific stress-response proteins is activated when cortisol binds to the glucocorticoid receptor.

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Answer: Traditional agriculture relies on outdated information, outdated tools, and organic fertilisers, whereas contemporary agriculture relies on technologically improved tools and machinery

Crossing-over occurs during prophase I, and it is the exchange of genetic material between non-sister chromatids of homologous chromosomes.

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The organism which possesses traits that enable it to exploit the rocky shoreline more efficiently than the other populations in the community is orange mussels.

In an ecosystem, an orange mussels is referred to as a keystone species.

An experiment was conducted on different species of organisms by placing them along a rocky shoreline to find our their particular traits and characteristics.

A rocky shoreline is a restricted space with limited and fixed resources.

Only those organisms can survive in a rocky shoreline who are adaptive, less vulnerable to harsh conditions and have high rate of reproduction.

In such experiment, the organism which possessed the abovementioned characters were orange mussels as they possess stable population and high exploitation rate of reproduction.

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Answer:

anterior, middle, and posterior

Explanation:

hope it helps though have nice day

The structures that a single-cell organism need for movement include cilia and flagella (Option A).

Cilia and flagella are subcellular structures that cells use to move in the surrounding media. These structures are composed of monomers that connect each other and they can suffer polymerization-depolymerization cycles in order to maintain a movement in response to environmental stimuli. For example, cilia are composed of microtubules that link to the plasma membrane.

Therefore, we can conclude that cilia and flagella are structures of the cytoskeleton that help microorganisms to move in their surrounding environment.

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Answer:

Peatlands form in areas where waterlogged conditions slow down the decomposition of plant material and peat accumulates. This accumulation of carbon-rich plant remains has been especially strong in northern tundra and taiga areas where they have helped cool the global climate for more than 10,000 years.

i just had that :D

Explanation:

The starting population, N(0), is 10 and has a growth charge, m, of 2 individuals in keeping with a unit of time, the populace is at 25 devices of time: OA.80

A discrete assemblage of entities with identifiable traits inclusive of human beings and animals with the goal of analysis and information collection is known as a population. It consists of a comparable institution of species that reside in a specific geographical region with the ability to interbreed. the full number of humans dwelling in a specific area in a selected time is referred to as the populace.

The population is one of the important factors which facilitates the balance of the environment, the populace ought to the stable with the means and resources. it can be a set of individuals, items, events, organizations, and so on. you use populations to draw conclusions. Definition 1: Population. An example of a population is the full frame of scientists in the faculty. This includes all college students observed at that school during the statistical series.

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The cell nucleus is the organelle responsible for controlling cell division in eukaryotic cells (Option D).

The cell nucleus is an organelle in eukaryotic cells that contains the genetic material, i.e., the DNA sequence, which is responsible for encoding the information required to synthesize proteins and further biomolecules in a cell. This DNA is a long nucleotide sequence that contains genes that are transcribed to modulate cell division during mitosis or meiosis.

Therefore, we can conclude that the cell nucleus contains DNA that is responsible to modulate the cell division process of cells.

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Answer:

D

Explanation:

the answer is d the cell wall provides support and protection

While walking barefoot on the beach, joe stepped on a thorn that penetrated through the sole of his foot to the dermis. The thorn penetrates 5 layers of the epidermis.

The top layer of skin on your body is called the epidermis. It serves a variety of crucial roles, such as shielding your body from the elements, maintaining moisture levels in your skin, generating new skin cells, and determining the color of your skin. It's crucial to look after your skin.

The dermis helps in thermoregulation, sensibility, and support and protection of deeper layers of skin. The basic cells in the dermis are fibroblasts, but histiocytes, mast cells, and adipocytes are also crucial for preserving the dermis' typical form and function. The skin is made up of three tissue layers: the epidermis, and the outermost layer. The middle layer is the dermis. The bottom, or fatty layer, is the hypodermis.

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Answer:

RNA Polymerase is the enzyme responsible for the synthesis of RNA

Explanation:

Ribonucleic acid [RNA] is synthesized from DNA in a process known as transcription. this process is facilitated by RNA polymerase enzyme. The corresponding RNA produced is complementary to the parent DNA

While DNA is usually double-stranded, RNA is single-stranded and they are synthesized from each strand of DNA.

RNA polymerase is responsible for unwinding the double strands of DNA and copying the information into the newly formed RNA strand.

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The enzyme responsible for the synthesis of RNA is RNA polymerase

RNA polymerase is responsible for unbinding the double strands of DNA into two single strands of the RNA and transcribing the information in DNA into the newly formed RNA

This process is known as Transcription

there are four types of RNA polymerase

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After fertilization by a single sperm, the cell membrane changes, blocking the entry of additional sperm.

The fertilized egg is a single cell for the first 12 hours following conception. It splits into two cells after about 30 hours. The two cells divide into four after about 15 hours. And after three days, the fertilized egg cell has developed into a 16-cell berry-like structure.

Directly below the shell are two membranes, the outer and inner shell membranes. These membranes prevent fluids from the egg from evaporating too quickly and protect its contents from bacterial invasion.

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The distance is calculated out to be 13 meters and the displacement is calculated out to be 3 meters.

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The material through which a wave moves is called a medium.

What are waves?

wave: the regular, systematic spread of disturbances from one location to another. The waves that travel on water's surface are the most well-known, but waves also exist in sound, light, and the movement of subatomic particles. The disturbance oscillates periodically (see periodic motion) with a set frequency and wavelength in the simplest waves. While electromagnetic waves (see electromagnetic radiation) do not require a medium to travel through and can move through a vacuum, mechanical waves, like sound, need one. The characteristics of the medium affect how a wave travels across it. also see seismic wave.

Many waves require something to travel through. Water waves travel along the surface of the water, and sound waves travel through air. You can even make a wave travel along a rope. The material through which a wave travels is called a medium. Gases (such as air), liquids (such as water), and solids (such as ropes) all act as mediums. Waves that require a medium through which to travel are called mechanical waves.

Hence The material through which a wave moves is called a medium.

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