I need help with this active cell division problem! Will give brainilest!!

Answer:

C. The release of energy for metabolic activity

An uninducible phenotype would come from a "down" mutation, which would preclude expression even when the de-repressed condition (when the inducer is present).

The lac repressor is a lactose sensor. When the presence of lactose the repressor's ability to prevent transcription of a operon in its normal state is lost. The repressor protein recognizes galactose by means of its enantiomers allolactose. A glucose sensor is the proteins catabolite activator (CAP).

Transcription and translation are indeed the processes through which DNA is converted into RNA and utilized to make proteins, respectively.

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Answer:

In this region the temperature increases with height. Heat is produced in the process of the formation of Ozone and this heat is responsible for temperature increases from an average -60°F (-51°C) at tropopause to a maximum of about 5°F (-15°C) at the top of the stratosphere.

Explanation:

Carrying capacity is the maximum population of a given species that a particular habitat can sustain indefinitely (option D).

Carrying capacity is the number of individuals of a particular species that an environment can support.

The carrying capacity is pivotal to a population as it determines the survival of species in that population. A species population size is limited by environmental factors such as adequate food, shelter, water, and mates.

Carrying capacity of an ecosystem is the largest population that it can sustain indefinitely with the available resources, also called the “maximum load” by population biologists.

Therefore, the maximum population sustainable by a habitat is the carrying capacity.

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Additionally, K+ is a positively charged ion with a concentration of 120 mM inside the cell, 4 mM outside the cell, and an equilibrium potential of -90 mV. This means that K+ will be in electrochemical equilibrium when the cell is 90 mV negative of the extracellular environment.

It is widely known that increased extracellular potassium ion concentrations ([K+]o), which frequently accompany conditions like ischemia and hyperkalemia in the heart, alter the resting transmembrane potential and the excitability of cardiac tissue.

Increased extracellular potassium depolarizes neurons because the resting neuronal membrane is extremely permeable to K+ and the membrane potential is sensitive to variations in the extracellular potassium concentration.

The duration of Purkinje and ventricular action potentials is lengthened when extracellular K concentration is reduced below approximately 3.0 mM, and diastolic depolarization in the Purkinje fiber is enhanced (9,10,12,13).

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Alzheimer's disease (AD) plaque and neurofibrillary pathogenesis are made possible by beta-amyloid (Abeta). By interacting with alpha7 nicotinic receptors, soluble Abeta stimulates the formation of intraneuronal Abeta aggregates and the phosphorylation of tau (alpha7nAChRs).

In vitro reincubation with S 24795 decreases the interaction between Abeta(42) and alpha7nAChR as well as beta-amyloid (Abeta) (42)-induced tau phosphorylation. S 24795 lessens Abeta(42)-alpha7nAChR association and Abeta(42) immunostaining in organotypic brain slice cultures and in an in vivo Abeta(42) injection model.

S 24795 also normalizes Ca(2+) fluxes through alpha7nAChR and NMDAR channels in organotypic cortical slices and mice brains that have been exposed to beta-amyloid (Abeta)(42) or infused with it. Galantamine and memantine have a minor impact on the Abeta(42)-alpha7nAChR coupling and Abeta(42)-mediated reduction of alpha7nAChR- and NMDAR-mediated Ca(2+) influx, in contrast to S 24795 and Abeta(12-28).

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The source that would likely have mitochondrial DNA but lack nuclear DNA is highly decomposed skeletal remains; option B.

DNA is the molecule found in living organisms that contains the genetic information of the living organism.

It is a double-stranded helical structure molecule composed of nucleotide monomers linked by phosphodiester bonds.

The DNA in living organisms is found in the nucleus o the cell as well as in the mitochondria of cells.

The DNA in the nucleus is known as nuclear DNA whereas the DNA in the mitochondria is known as mitochondrial DNA.

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Answer:

sphincters

Explanation:

Please give a thanks or 5 stars if this helped!

Answer:

Answer down below!

Explanation:

Even though technically, brown eyes are indeed the dominant trait, every once in a while, recessive traits can slip in. So even if there is a dominant gene, it's not always the case that dominant genes can always be the case. That is also how evolutions start when one recessive trait is shown, and it proves to be useful.

Answer:

3 and 4

Explanation:

Sugar made from photosynthesis is broken down to release energy needed for life.

and the sugar can also be used to make other organic molecules such as cellulose.

A good team member will actively listen, which means using body language to understand how the speaker is feeling.

Active listening is a skill that can be learned with consistent practice. In active listening, a person employs all of his or her senses. The person responds to the speaker through verbal and nonverbal means (such as nodding and maintaining eye contact), encouraging the speaker to continue speaking. Positive feedback in the form of body language makes the speaker feel more at ease, allowing him to speak more comfortably and honestly.

As a result, option C) use body language to understand how a speaker feels is the correct answer.

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Answer:

Use body language to understand how a speaker feels

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The kinetochore is the part of the centromere do mitotic spindle fibers attach during prometaphase.

Based on where the centromere is located, there are four different types of chromosomes.

Listed below are the functions of the centromere:

A chromatid is split into two arms by a region known as the centromere. The kinetochore is situated around the location of the duplicated chromosome in order to connect to the spindle fibers' microtubules. It facilitates correct chromosomal segregation.

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Answer:

O The plasma membrane controls the flow of materials into the cell

Explanation:

Answer:

Answer down below!

Explanation:

They are called abiotic factors and these factors are indeed, non-living factors in a given ecosystem. They include things such as light, water, or temperature since they do affect animals living in an ecosystem.

Answer:

Spongy bone, also known as cancellous bone, contains osteocytes housed in lacunae, but they are not arranged in concentric circles. Instead, the lacunae and osteocytes are found in a lattice-like network of matrix spikes called trabeculae

Answer:

I'd assume nature isn't a cause of genetic mutations

Explanation:

Answer: d. To provide consistent ways to identify and classify organisms as they are being studied

Explanation:

Taxonomy is a process that describes and helps identify different living organisms. The process involves classification, identification, nomenclature.

Answer:

2 carbons; to CO2; 4 carbons; acetyl groups

Explanation:

In eukaryotic cells, gene expression is under the control of Option D epigenetic, transcriptional, post-transcriptional, translational, and post-translational levels.

While genetic alterations can affect which proteins are produced, epigenetic changes impact gene expression and can "turn on" and "turn off" genes. The relationship between your genetic, actions, and environment is simple to understand since your environment and habits, such nutrition and exercise, can cause changes in your epigenome. Epigenetic mechanisms are molecular processes that control how an organism's genome is regulated by its environment. The genetic information is transferred from the archival copy of DNA to short-lived messenger RNA during transcription, translation, and subsequent protein modification, which typically results in the synthesis of protein. Despite the fact that all cells in an organism have fundamentally the same DNA, different cell types and functions result from qualitative and quantitative variations in gene expression as well as control of gene expression.

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An air mass is a large body of air with relatively uniform temperature and moisture.

A huge body of air with a largely constant temperature and humidity is referred to as an air mass. An air mass's properties are determined by the region from which it originates. The likelihood that the air mass will take on characteristics of the surface below increases with the amount of time it spends over its source region. Air masses are hence related to high-pressure systems.

Based on the moisture content, air masses can be divided into two major categories. Therefore, dry air masses that originate over continents are those denoted by the lowercase letter "c." Maritime air masses, denoted by the letter "m," are moist air masses since they originate over the oceans.

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The so-called "universal" or "standard genetic code," as we all learnt in high school, is a set of guidelines that specify the relationship between the "20" amino acids and the "bases" (codons) found within mRNA.

There are 20 frequent amino acids in the human genetic code. Additionally, the codons UGA and UAG, which are often used as stop signals, are used to encode selenocysteine (Sec) и pyrrolysine (Pyl), the twenty-first and twenty-second amino acids, respectively.

Except for a few prokaryotes, cells with mitochondria, and chloroplasts, every organism, including viruses, bacteria, and humans, has the same genetic code. The dining room table .

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A deceease in the secondary consumers in an ecosystem can impact both primary consumers and primary peoducers. The reason why it impacts primary consumers is because they no longer are pret causing them to over populate. The over population of the primary consumers impacts the primary consumers because now there are too many primary consumers that need food. Eventually the primary producers will become exctinct due to the primary consumers eating the primary producers. When the primary producers die out so will the primary consumers, for their food source is gone.

A decrease in populations of secondary consumers in an ecosystem can have significant impacts on both the primary consumer level and the primary producer level.

At the primary consumer level, the number of secondary consumers decreases which increases the number of primary consumers, as there are fewer predators to consume them.

This can put additional pressure on the primary producers because of the presence of more herbivores competing for limited resources. The increase in herbivores results in the depletion of plant populations, which can have negative effects on the entire ecosystem.

At the primary producer level, the decrease in populations of secondary consumers also decreases the number of predators, that allow herbivores to reproduce rapidly putting additional pressure on the primary producers.

Therefore, the decrease in populations of secondary consumers can alter the balance between predator and prey populations thereby disrupting the relationships between different trophic levels.

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Answer:

d

Explanation:

Answer:

It is called absorption. Digested food enters the blood or lymph through the small intestine wall by diffusion or active transport

Answer:

Diffusion

Explanation:

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. It can occur all over the body including the large intestine when food enters to blood stream and in the alveoli in the lungs where gases diffuse into the blood stream. Hope this helps :)

Each description should be matched with the correct and appropriate terminology as follows:

A cell can be defined as the fundamental functional, structural and smallest unit of life, which is found within the body of an organism.

A joint can be defined as a point where two (2) or more bones in the body of an organism (skeletal system) make contact, so as to facilitate the easy movement of body parts.

In Science, cells that have the ability to dissolve the bony matrix are generally referred to as osteoclasts while cells with the ability to build bony matrix are generally referred to as osteoblasts.

Furthermore, the membrane which acts as a lining of the marrow cavity is generally referred to as endosteum and it is mainly responsible for the following:

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Students perform tests of macromolecules in a laboratory to test whether lipids, carbohydrates, and proteins are present in various foods.

A macromolecule is defined as a very large molecule that is important to various processes like protein or nucleic acid. It is made up of covalently bonded atoms. Many macromolecules are polymers of smaller molecules which are called monomers. Carbohydrates, lipids, proteins, and nucleic acids are the four main types of a macromolecule which are necessary for normal function as well as the survival of our body. We can use indicators to test the presence of macromolecules such as lipids, carbohydrates, and proteins in many foods in laboratory. We will be testing for the presence of carbohydrates such as glucose, and sucrose as well as complex carbohydrates such as starch and proteins.

So we can conclude that we can test macromolecules in labs at school to check the presence of lipids, carbohydrates, and proteins in various food items.

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Answer:

Explanation: The opening line, "One dollar and eight-seven cents" (in 1905) is equivalent to how much in today's dollars? Why is this amount both important and unimportant in the story?

Answer: The answer is cyclic

Explanation: just took the test

The generation time is 20 hours in mycobacterium tuberculosis are grown for 80 hours. during that time, they go through four generations of growth.

The bacteria Mycobacterium tuberculosis is the one that causes tuberculosis (TB). However, TB bacteria can target any region of the body, including the kidney, spine, and brain. The bacteria typically assault the lungs. A TB bacteria infection does not always result in illness. Latent tuberculosis infection (LTBI) and TB illness are as a result two TB-related disorders. TB infection can be lethal if not adequately treated.

Acute or chronic bacterial infections are most frequently detected in the lungs and are known as tuberculosis (TB). Like a cold, TB is spread mostly through airborne droplets that an infected person breathes out into the environment. The bacteria produces tubercles, which are little tissue lumps. These tubercles in the lungs restrict breathing and cause sputum to be spat up. If untreated, tuberculosis (TB) may come back after extended periods of inactivity (latency). There are numerous types of tuberculosis, and they can be identified by the body part afflicted, the severity of the condition, and the community they affect. Today, it is believed that this disease is both treatable and avoidable. It is quite uncommon in the US, although it is growing.

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The smallest number of molecules are 200 ATP and 400 GTP consumed in the synthesis of a protein with 200 residues after mrna synthesis.

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