Phosphofructokinase is an enzyme that acts on fructose 6-
phosphate at an early step in glucose breakdown. Regulation of this enzyme controls
whether the sugar will continue on in the glycolytic pathway. Considering this graph,
under which condition is phosphofructokinase more active? Given what you know about
glycolysis and regulation of metabolism by this enzyme, explain the mechanism by which
phosphofructokinase activity differs depending on ATP concentration. Explain why it
makes sense that regulation of this enzyme has evolved so that it works this way.

Answer:

b

Explanation:

Answer:

its c

Explanation:

Halophilic bacteria possess a pigment related to the plant's chlorophyll.

They are bacteria that live in high salt environments. They have a certain feature that enables them to pump out salts in order to maintain normal osmotic conditions in their bodies.

Halophilic bacteria are equipped with bacteriorhodopsin and halorhodopsin. These enable them to photosynthesize like plants. and generate the much-needed ATP for pumping out salts.

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Original Question: Some plants have red leaves instead of green leaves. Which of the statement about the production of food through photosynthesis in such plants is most likely true?

Answer: (J) The chlorophyll necessary for photosynthesis is present but hidden by red pigment.

Explanation: Every plant has chlorophyll to help with the production of food through photosynthesis.

For plants with red leaves or any other color but green, the pigment simply acts as a 'sunscreen to the plant', who perhaps doesn't require so much sunlight in its photosynthesis.

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Answer:

they lead to positive change in the population

The four sensations detected by the tactile receptors in the skin are touch, pressure and vibration and tickle.

They are nerve endings formed by a branched axon. They are distributed in almost all parts of the body and capture mechanical (pressure), thermal (cold and heat) and especially painful sensations.

This is because Tactile sensations are the ones that detect touch, pressure, and vibration. About six different types of tactile receptors are known.

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The position  and attachments of the parietal pericardium of the heart of the fetal pig is; The parietal pericardium is a very thin layer on the outside surface of the heart.

The Parietal pericardium is a serous membrane that secretes serous fluid to lubricate heart and reduce friction.

The Parietal pericardium acts as mechanical protection for the heart and big vessels, and a lubrication to reduce friction between the heart and the surrounding structures.

The description of the position and attachments of the parietal pericardium  is that  is a very thin layer on the outside surface of the heart.

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Answer:

D

Explanation:

obtaining immunity from an outside fluid

The correct term is histological section.

Histology has to do with the study of tissues. Sectioning has to do with cutting very thin slices of objects.

Thus, histological sectioning is an act of cutting very thin slices of tissues for the purpose of mounting such on microscope slides. To enhance views and differentiate different parts of cells, sections of tissues are often stained.

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Answer:

penicillin, Alexander Fleming

Answer:

small molecules easily pass through the phospholipids in the cell membrane

Fungi are different from plants in that they are achlorophyllous.

Fungi and plants are both eukaryotic in nature when it comes to their cells.

However, plants differ from fungi in that plants contain a green pigment known as chlorophyll while fungi do not. The green pigment enables plants to photosynthesize.

Thus, fungi are said to be achlorophyllous.

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The plant tissues can be subdivided in the chart as Vascular Sclerenchyma Parenchyma Xylem Phloem. Thus, the correct option is D.

Sclerenchyma's primary job is to offer mechanical support. They are made up of lengthy, slender cells that have a thick lignified wall. They lack protoplast and are largely dead.

The complete chart and table are given in the image attached.

A basic permanent tissue known as parenchyma makes up a large portion of the ground tissues of plants, where vascular tissues and other tissues are attached. They are non-vascular and made up of undifferentiated, primitive living cells that have undergone modifications to carry out distinct tasks.

Xylem, along with phloem and cambium, is a key component of vascular tissue. Its primary functions include providing mechanical support and storage as well as moving water and solutes from the plant-soil interface to the stems and leaves.

Parenchyma cells, are also a component of phloem and are essential for the storage of water, non-structural carbohydrates, and storage proteins.

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Answer: it’s D

Explanation: truss

Gene flow would cause an evolutionary change in animal populations that colonize a new environment as its conditions differ from those found in their home.

In genetics, the expression 'gene flow' refers to the migration of organisms or movement of their reproductive germinal cells to a new place.

Gene flow is well known to alter the genetic structure of the population in the site where it occurs.

In conclusion, gene flow would cause an evolutionary change in animal populations that colonize a new environment as its conditions differ from those found in their home.

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The mainframe computer is a very large general-purpose computer that is capable of performing very many functions as if these are done simultaneously, and storing extremely large amounts of data.

Mainframe computers are computers used primarily by large organizations for delicate applications like processing bulk data.

They  are known for their large size, amount of storage, fast processing power and high level of reliability in results.

Thus, the mainframe computer is a very large general-purpose computer that is capable of performing very many functions as if these are done simultaneously, and storing extremely large amounts of data.

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Reproduction of new cells are the function of the cell cycle is especially important to burn victims. Hence option d is correct.

Reproduction  is defined as birthing is the process by which a living thing produces offspring. To reproduce is to reproduce. It is a biological procedure by which an organism creates a physiologically identical progeny. Generation after generation, reproduction makes possible and ensures the survival of species.

The phases of the cell cycle are G1, S, G2, and mitosis. In gap 1, the cell expands in size and copies the DNA during the synthesis phase. The cell goes through preliminary modifications in the gap 2 phase. The real division takes place during the mitotic phase, when the cell multiplies and grows in quantity to replace the burned victim's old and dead cells. It encourages the wounded area's growth and healing.

Thus, reproduction of new cells are the function of the cell cycle is especially important to burn victims. Hence option d is correct.

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Answer: Capsule : A

Flagella: A

Cell Wall: B

Cytoplasm: B

Cell membrane:  B

Nucleus: C

Explanation: got this question correct on my lesson. Hope this helps, if you are in Visions, best of luck to you from another fellow vision student.

(a) Magnetic induction occurs when a conductor placed in a magnetic field changes direction or moves across the line of flux of the magnetic field.

(b) A magnet can attract unmagnetized material when the field from the magnet aligns the magnetic dipoles of the unmagnetized material.

Magnetic induction or Electromagnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field.

A magnet can attract unmagnetized material when the field from the magnet aligns the magnetic dipoles of the unmagnetized material so that they match those of the magnet itself.

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This ringing indicates: possible damage to the hair cells of her basilar membrane.

The basilar membrane is the main mechanical element of the inner ear. Its vibration patterns have the effect of separating incoming sound into its component frequencies that activate different cochlear regions.

So we can conclude that the ringing indicates possible damage to the hair cells of her basilar membrane.

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Answer: would be emigration

Explanation: When the death rate shoots up in a particular environment due to certain factors organisms are bound to emigrate away for such environment to avoid death from reaching them

Answer:

fertilization

Explanation:

because the adult body can only form a zygote if the egg is fertilized

Answer:

d

Explanation:

.df

Answer:B

Explanation:

B

One reason biodiversity is such an important aspect of sustainability is that it provides vital ecosystem services through the interactions among species and keeps any population from growing too large (option A).

Biodiversity refers to the number and variety of species of plant and animal life within a region.

Sustainability is the means of configuring civilization and human activity so that society, its members and its economies are able to meet their needs and express their greatest potential in the present without compromising the ability of future generations to do the same.

Biodiversity helps to ensure sustainability because it provides vital ecosystem services through the interactions among species and keeps any population from growing too large.

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collagen fibers, I hope this was helpful to you :)

Fossils can form when organisms travel over gravels and leave imprints.

Fossils are formed when a living organism i.e. plant or animal dies and quickly buried by sediment. When burred into the soil they leave their imprint on the surrounding environment.

So we can conclude that fossils can form when organisms travel over gravels and leave imprints.

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Answer:

O Ecosystem which is survival of the fittest.

Explanation:

Answer:

Natural selection

Explanation:

Humans and chimpanzees are both mammals but they have characteristics that different or set them apart from each other. These characteristics include;

- Chimpanzees work on all four legs while humans walk on only two legs
- Chimpanzees avoid river/oceans because they do not know how to swim while humans can learn how to swim with constant practices
- The body of a chimpanzee is covered with thick hairs while humans do not have as much hair on the body
- Humans have an S shaped spine while chimpanzees have a C shaped spine

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The word transcribe means 'to pass the code from DNA to RNA', whereas the word translate means 'change from mRNA to protein', which is a different language.

The genetic code is a series of instructions that indicate how to synthesize proteins from a given gene sequence.

During transcription, the DNA gene sequence is transcribed into a messenger RNA (mRNA).

During translation, triplets of nucleotides or codons in mRNA determine specific amino acids in the growing protein sequence.

In conclusion, the word transcribe means 'to pass the code from DNA to RNA', whereas the word translate means 'change from mRNA to protein', which is a different language.

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Animals need features such as nutrition, movement, respiration, response to stimuli, growth, and excretion in order to survive.

In order for an animal to survive, the following must be observed:

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