Dna replication proceeds outward from two , which are the sites where the template strands are unwound and new dna is synthesized.

When the population density is low, people survive more easily and the clutch size grows.

According to a theoretical research study, the rising seasonality of resources from the tropics to the poles, either alone or in combination with a decline in predation and breeding season, can account for the latitudinal gradient in clutch size.

In conclusion, nest type, latitude, nestling development, and body size had the greatest effects on clutch size. Latitude, migratory patterns, nestling growth, and nutrition all had a significant impact on the number of broods.

The nature of the link between offspring quality and fitness and offspring quality and number affects these predictions. This anticipated number of children is known as the "ideal clutch size" in animals, particularly birds.

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Intense exercise can be performed using ATP reserves from skeletal muscles for 3-5 seconds.

ATP or Adenosine Tri Phosphate is the main source of energy for muscle contraction and ATP comes from the oxidation of carbohydrates and fats by breaking down phosphoerectin and glycogen.  ATP reserves can be used optimally within 3-5 seconds, while ATP recovery takes 3-5 minutes.

The mechanism of muscle contraction begins when a signal is sent from the nervous system to the cells in the muscle. Signals start from motor neurons to neuromuscular which are ordered by the brain when they want to do something that requires muscle movement.  And the breakdown of ATP will release energy which can cause myosin to be able to pull on actin and also shorten the muscle.

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large plantations that grow a single species of tree that undergoes intensive cropping are an example of wheat plantation.

An intensive cropping system is defined as a type of agricultural production system where high inputs of fertilizer, pesticides, labor and capital on a  land area being farmed.

For example Wheat , Maize (mechanical harvesting), Soybean (genetic modification), Tomato; These type of Cropping systems has to be evolved based on climate, soil and availability of water and use of available natural resources.

Other factor responsible for this cropping are increase in population has put pressure on land to increase productivity per unit area, unit time and for unit resource used, should  provide enough food for the family, fodder for cattle and generate sufficient cash income.

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The correct statement from above which describes the role of animals in the water and carbon cycles is:

animals use oxygen to perform photosynthesis and release carbon dioxide as a by‐product.

The correct option is d.

Carbon cycle simply refers to series of processes which involves the continual movement of carbon atoms from the atmosphere to the earth and from the earth back to the atmosphere.

From the task given above, carbon dioxide which is cycle to the atmosphere is as a result of being exhaled by animals and oxygen is a by product of photosynthesis.

In conclusion, we can now confirm perfect deduce from the explanation simple above that the movement of carbon from the earth to the atmosphere and back to the earth is very important to well being of animals.

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Answer:

Chromosomes line up at thr equator of the cell.

Explanation:

Chromosomes line up at thr equator of the cell occurs in metaphase. So, it aint occur in prophase

Global warming can cause a rise in sea level, leading to the loss of coastal land, a change in precipitation patterns, increased risks of droughts and floods, and threats to biodiversity.

Ecological effects may includes Climate change where species live, interact. It can also effect the  timing of biological events, which could literally transform ecosystems and food webs.

Climate change can also alter the capacity of ecosystems to temper extreme events and disturbance, such as wildfires, floods, and drought. Their can also be a chance of and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans .

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Answer:

Explanation:

1.hydrologic cycle

2. dew point

3. True

4. Cloud droplets from

5. Encounter Mountains

Answer:

the water cycle, dew point, true, cloud droplets form, encounter mountains

Explanation:

DNA a chromosome's starting point for synthesis is where replication begins.

When a cell divides, it is essential that each daughter cell receives an exact copy of the DNA. DNA replication happens during the synthesis phase, also referred to as the S phase, of the cell cycle, which comes before the cell enters mitosis or meiosis.

The elucidation of the structure of the double helix gave a hint of how DNA is copied. Recall that cytosine and guanine pair while adenine and thymine couple. The two threads complement one another so well. For instance, a DNA strand with the nucleotide sequence AGTCATA will have a complementary DNA strand with the nucleotide sequence TCAGTACT.

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In 2013, the global carbon dioxide concentration peaked at over 400 parts per million and thus well exceed its natural range of 180 to 280 ppm.

What is the keeling curve?

The Keeling curve, provided by the Scripps Institution of Oceanography, gives the daily reading of atmospheric carbon dioxide, in parts per million (ppm), measured at the top of Mauna Loa, Hawaii.

Carbon dioxide is considered to be the 'global climate thermostat' for planet earth and is a greenhouse gas that is transparent to incoming solar radiation, absorbing outgoing infrared radiation the earth is giving off as the surface cools.

Co2 is the most important man-made greenhouse gas, which acts like a blanket trapping heat near the surface of the earth. Hence increase in carbondioxide concentration mostly causes the greenhouse effect.

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A pea plant that carries two high alleles is called a homozygous.

If there are two identical alleles at the same genetic locus, the genotype of the gene is considered homozygous, and will usually produce a very clear phenotypic response in the body. However, if the two alleles are not the same, the genotype is called heterozygous, which is where things can get a little more complicated.

In the heterozygous situation, one allele may be dominant, while the other is recessive; in this case, the dominant allele will be expressed (e.g., brown eyes – dominant trait). In a homozygous situation where both alleles are dominant, the dominant trait will emerge. In a homozygous situation, where both alleles are recessive, the recessive trait will be phenotypically expressed (i.e., blue eyes – recessive trait).

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The cell theory also states that cells come from pre-existing cells, the answer is option A.

The cell theory of life according to Theodor Schwann, states three components which include:

Cells are the units and building block of every living organism on their own and contain genetic information encodings. They have energy flowing through them and are usually composed of the same chemicals.

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Protons moving across the thylakoid membrane participate in atp production by moving through ATP synthase and providing free energy.

A disk-shaped, membrane sac that contains chlorophyll and is present in the chloroplasts of green plants and blue-green algae. It is here that the light response of photosynthesis takes place.

Chloroplasts and cyanobacteria contain membrane-bound compartments called thylakoids. They serve as the location of the photosynthetic reactions that depend on light. In thylakoids, a thylakoid lumen is encircled by a thylakoid membrane.

Grana are stacks of stacked thylakoids (singular: granum). Each chloroplast has a large number of grana. Lamellae, which are protrusions of the thylakoid membrane and lumen, connect several grana. Usually, 40–60 stacked thylakoid discs make up a granum.

Thylakoids' primary jobs involve capturing light energy and converting it into the chemical energy molecules ATP and NADPH. As a result of this procedure, oxygen and water released.

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A macrophage is a type of leukocyte that surrounds and kills invading cells. This cell type also removes dead cells as well as stimulates the action of other immune cells.

Leukocytes are the white blood cells present inside the body. These are synthesized in the bone marrow of the bones. The cells may be present in blood as well as the lymph fluid. The most important function of leukocytes is to help in maintaining and increasing the immunity of the body by fighting the foreign invaders.

Immunity is the ability of the body to protect itself by fighting with the foreign invaders like bacteria, viruses etc. More healthy and disease-free an organism is, more is his immunity.

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If a cell is no longer able to differentiate into any type of tissue, it has become a differentiated cell.

A stem cell can differentiate into a different kind through cellular differentiation. Usually, the cell will transform into a new, more specialized type. As a multicellular organism develops from a simple zygote to a complex system of tissues and cell types, it passes through multiple differentiation cycles. Adult stem cells continue to grow when they divide into fully differentiated daughter cells during tissue repair and regular cell turnover. Immune reactions to an antigen lead to differentiation. A cell's size, shape, membrane potential, metabolic activity, and signal receptivity all vary dramatically during differentiation.

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Any molecule within a cell that has a uracil group will also contain a ribose. So the correct choice is D. ribose.

Ribose is a macromolecule that is part of nucleic acids. Ribose will be one of the bases that will form ribonucleic acids. Ribose will also be part of nucleotides that are not nucleic like ATP, which is one of the most important molecules for metabolism since it provides energy for most of the body's reactions. These riboses will be linked to a phosphate group and a nitrogenous base.

In riboses the thiamine base will not be used, for this reason the uracils will be used instead of this.

Therefore, we can confirm that any molecule within a cell that has a uracil group will also contain a ribose. So the correct option is D. ribose.

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Any molecule within a cell that has a uracil group will also contain __________.

A. deoxyribose

B. glycerol

C. glucose

D. ribose

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The frequency of the offspring being agouti brown is 3/9.

Here, it is given that both of the parents are agouti black. The children might be of four types of colors - agouti black (AaBB), agouti brown (AaBb), solid black (AABB), and solid brown (AABb). We also know that the color black is dominant over brown. Agouti is dominant over a solid color.

The phenotypes of the offspring are going to be - (AABB, AABb, AAbb, AaBB, AaBb, Aabb, aaBB, aaBb, aabb)

Here, we see that the agouti brown type comes three times i.e., AAbb, Aabb, aabb.

This means that three of the nine progeny are going to be agouti brown in color.

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DHA and EPA eicosanoids may be  derived from omega-3 fatty acids they reduce blood clot formation and promote heart health. The richest food source of DHA and EPA is ______Fish______.

EPA and DHA are very important for proper fetal development, including: neurological, retinal and immune function. EPA and DHA may affect many aspects of cardiovascular functions including: inflammation, peripheral artery disease, major coronary events, and anticoagulation.

He has his three forms of these fatty acids. Alpha-linolenic acid (ALA) is primarily found in vegetable oils, and seafood is the best source of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). ALA is an essential fatty acid and must be obtained from food. Foods rich in omega-3 fatty acids include fish, vegetable oils, nuts (especially walnuts), flaxseeds, linseed oil, and leafy greens.

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Joe has mycoplasma pneumonia that is a special characteristic of genus that did not have any peptidoglycan.

Pneumonia can be caused by viruses that invade your lungs and airways. The most prevalent causes of viral pneumonia in adults are the flu (influenza virus) and the common cold (rhinovirus). The most prevalent cause of viral pneumonia in young infants is respiratory syncytial virus (RSV). Although most patients with pneumonia react favorably to therapy, pneumonia can be extremely dangerous and even fatal. Complications are more likely if you are an older adult, a very young child, have a weakened immune system, or have a serious medical condition such as diabetes or cirrhosis.

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Rock formations go into the mantle after being subducted, option C.

Subduction is the geological process of recycling rocks from the oceanic lithosphere into the Earth's mantle where two or more lithospheric plates collide known as convergent boundaries. The heavier plate dives beneath the other plate into the mantle where the tectonic plate converged between the oceanic lithosphere and a less dense lithosphere.

Sedimentary and metaphoric rocks that plunge deep during subduction ultimately melts to form magma then cools off into igneous rock. This entire process is known as the rock cycle which takes millions of years to complete.

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Subduction zones occur at places where  two continental plates are colliding.

Subduction zones can be found in places like deep oceanic trenches, lines of volcanoes parallel to the trenches, and zones of large earthquakes that extend from the trenches landward. The collision of the continental plates happen due to their differences in density and force of gravity.

Continental plates are also called the tectonic plates. These are the large pieces of the earth that move separately. These plates are made up of granitic rocks which are made up of relatively lightweight minerals such as quartz and feldspar. The cooling of magma forms the tectonic plates.

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Gel electrophoresis can be used to differentiate the sizes of duplex nucleic acid molecules. A duplex molecule can be created by joining complementary separate nucleic acid sequences.

The duplex structure supports the Watson-Crick base pairing model for GNA containing antiparallel strands. The right-handed helical ribbon that is wrapped around the helix axis to create a big hollow core is how one can define the duplex secondary structure, which is different from the canonical A- & B-form nucleic acids.

One of the most biologic systems is the duplex synthesis of nucleic acids. During replication, RNA primers create a duplex with parental strand of DNA. (1) A brief stretch of duplex must be formed during translation in order to recognize codons against anticodons.

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External respiration refers to gas exchange, regardless of its location, whereas Internal respiration refers to the cellular process that metabolizes glucose and results in the production of atp.

Respiration is the transport of oxygen from the outside environment to cells within tissues, as well as the removal of carbon dioxide in the reverse direction. It is a biological process that occurs within living creatures' cells. The chemical process through which organic substances release energy is known as respiration. Exergonic reactions transform the molecules into new ones. There are two forms of respiration: aerobic and anaerobic. Aerobic respiration consumes oxygen and produces a lot of energy. We can breathe because of our lungs and respiratory system. They transport oxygen into our bodies (this is known as inspiration or inhalation) and expel carbon dioxide (called expiration, or exhalation). Respiration is the exchange of oxygen and carbon dioxide.

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Answer:

  (d) Photosynthesis converts water and carbon dioxide gas into oxygen gas and carbohydrates

Explanation:

You want to describe the process of photosynthesis.

Photosynthesis is the process of synthesizing the materials a plant needs for growth and reproduction from light energy and the raw materials water and carbon dioxide. The end products of the process are carbohydrates (glucose) and oxygen.

In short, ...

Photosynthesis converts water and carbon dioxide gas into oxygen gas and carbohydrates.

By true breeding green-seeded plants a particular species of plants can have yellow or green seeds.

A true breeding is a form of reproduction in which the parents' offspring have the same phenotype. In other words, both parents have the same genetic makeup. The Aberdeen Angus breed of cattle is an illustration of real breeding. The fact that the cattle have been black for many generations is proof that a trait that has been passed down over many generations is still pure. Another illustration is when two dogs of the same breed mate. As a result, the characteristics of the children would be more predictable.

However, true breeding implies a small gene pool. As a result, there is a high likelihood that a certain trait will be inherited (such as genetic illnesses), which may have a negative impact on the offspring's health.

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The difference in the concentration of molecules in two areas across a membrane is concentration gradient.

In the field of science, concentration gradient can be described as a term that is used when there is a difference in the number of molecules inside and outside the membrane. Due to this difference, molecules either pass into a cell or outside of a cell.

When the concentration of a molecule is higher outside a cell as compared to the inside of a cell, a concentration gradient will develop. As a result of this concentration gradient, molecules will move into the cell.

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Epinephrine which is also known as adrenaline, is responsible for the fight-or-flight response.

Adrenaline (epinephrine) is a hormone produced by the adrenal glands to prepare the body for stressful or dangerous situations. Adrenaline rush refers to the rapid release of adrenaline into the bloodstream. This prepares the body for a "fight or flight" response. Because most people are sometimes exposed to stressful situations, they are familiar with the typical symptoms of an adrenaline rush, such as: Rapid heartbeat, high blood pressure, anxiety, excessive sweating, heart palpitations.

The fight-or-flight response is an automatic physiological response to stressful or frightening events. Perceiving a threat activates the sympathetic nervous system, triggering an acute stress response that prepares for fight or flee.

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The medical and social benefits of new technologies such as CT, PET, and MRI. are:

You will be exposed to very modest doses of radiation throughout these examinations. It has not been demonstrated that this little radiation exposure is harmful. There may be a slight possibility of an elevated risk of cancer in the future for kids or other individuals who require several PET scans, CT scans, and x-rays.

Compared to a CT scan, magnetic resonance imaging yields crisper images. An MRI is a better choice than x-rays or CT scans when doctors need to see soft tissues. Compared to CT images, MRIs can produce images of organs and soft tissues like damaged ligaments and herniated discs that are more accurate.

Therefore, X-rays, a form of radiation known as ionizing radiation, are used in CT scans. Your cells' DNA may be harmed, increasing the possibility that they may develop cancer.

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The condition of finding blood cells in the urine is called hematuria and some of them are caused by bacterial infections.

In hematuria, the kidneys or other parts of the urinary tract are disturbed so that blood cells mix with urine.

The following are some of the causes of hematuria

1. Urinary tract infection, occurs because bacteria enter the body through the urethra and multiply in the bladder

2. Kidney infection, occurs when bacteria enter the kidney from the bloodstream

3. Kidney stones, occurs when minerals in the urine form crystals in the walls of the kidneys or bladder that cause blockage

4. Side effects of drugs, some drugs such as anti-cancer drugs can cause bleeding in the urinary tract.

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