Differentiate the pH conditions of the stomach and intestine and how does it help in the digestion of food.

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Answer:

Explanation:Glucose is a monosaccharide containing six carbon atoms and an aldehyde group, and is therefore an aldohexose. The glucose molecule can exist in an open-chain (acyclic) as well as ring (cyclic) form. Glucose is naturally occurring and is found in fruits and other parts of plants in its free state.

Answer:

See explanation

Explanation:

Fossil records contain an extensive detail of the evolution of various species on earth which have been preserved in the remains of these organisms or imprints that organisms that existed long ago must have left  in sedimentary rocks.

Fossil records basically tell us about the past. They tell us about the species that once existed on earth. They also tell us how long these species existed and how the were related to other species.

This information help us to work out how these organisms lived and the environment where they lived.

Answer: B

Species remain the same over time.

Explanation:

Answer:

The correct answer is - option C.

Explanation:

The researcher found that the three genes hmgA, galU, and mexXY were missing from antibiotic-resistant mutants. It is known now that one of these genes is responsible for the susceptibility to the two antibiotics of wild-type P. aeruginous.

Performing gene knockout (targeted mutation) of all three genes on separate cultures of the wild-type P. aeruginosa would help to know which gene is responsible by determining if ceftazidime-avibactam resistance has occurred for each gene or not.

Answer:

Translation

Explanation:

Answer:

i think is the temperature of water(b)

Answer:

Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase

Answer:

Chemical energy

Explanation:

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Answer:

The frequency goes down

Answer:

Loose that one electron

Explanation:

Sodium is a member of group 1 in the periodic table. The members of this group are known to form a univalent positive ion and are highly electropositive.

They give out one electron and go into electrovalent of ionic combination.

Hence, for sodium to form a bond, it looses the only electron in its outermost shell.

Answer:

4: issac newton

5.D

6. d

Explanation:

yeah

Answer:

1) Refrigerate or freeze

If you freeze or refrigerate the food, the bacteria or whatever organism growth will slow down in the food by a Greta amount due to the coldness. Refrigerate might be a temporary food soteage for like a week or 2/ month max. While freezing will just freeeze the bacteria and mold on the food which can be stored up to 3- 12+ months even. But then again it will be most likely flavorless by the end or have no nutrients value. You can stores mik in the freezer for a while but its not recommended to taste, same for other thing syou usually see in the fridge, eggs/ vegetables/fruits/ milks/ yogurts/ etc.

2) No moisture, no water of any kind (drying in the sun or salted)

So every living thing we know of needs water. Including bacteria and mold. Without water, theres no place to thrive. No place to thrive means no bacteria and food is safe for a good amount of time. Dried foods can last a really long time, sure some types are really unpleasant but its edible. But you can’t techincally “dry” meat since it will be A whole nest for flies before it even reaches the halfway mark. You can slat it which will lessen he time but still really efficient. Salt absorbs water and breaks down any type of Stuff. Its like a mini acid.

3) Canned good and no air access (Pressurized/ controlled container)

This is done by putting all your favortie food in a metal container. With no air access, the bacteria or mold in the food already in can’t escape and new ones can’t get in. THe can then is boiled to a certain tempature where then the bacteria dies. Now the food can even be perishable stuff like meat (most common fishes), fruits and even a nice can of liquid soup. Nothin g can get in. Nothing can get out but nothing CAN get out becuase eveythign is dead. Canned food can last REALLY LONG, good for long term expeditions without a fire or food.

Answer:

Drying is one of the most ancient food preservation techniques, which reduces water activity sufficiently to prevent bacterial growth. Refrigeration preserves food by slowing down the growth and reproduction of microorganisms and the action of enzymes which cause food to rot

Explanation:

Answer:

(3) a single variable

Explanation:

A control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.

Controlled variable refers to anything or quantity such as group, person, event, etc., that is held constant by the researcher during an experiment and as such is limited.

The first trial of a controlled experiment allows a scientist to isolate and test a single variable.

Generally, most scientific experiments usually have a control group so as to avail scientists (experimentalists) an ability to compare the outcome of their test results before testing a single variable. This control group is not given the treatment or influenced by the same single (independent) variable as the experimental group.

Therefore, this is the reason why science completely or totally rejects any hypothesis which is not supported by observations, as well as the results obtained from control experiments.

This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.

Answer:

Fossil fuels produce large quantities of carbon dioxide when burned. Carbon emissions trap heat in the atmosphere and lead to climate change. In the United States, the burning of fossil fuels, particularly for the power and transportation sectors, accounts for about three-quarters of our carbon emissions.

Explanation:

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Answer:

interaction between two different organisms living in close physical association, typically to the advantage of both.

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Explanation:

Phenotype is the PHyiscal trait e.g height, eye colour and blood type.

Genotype is the GENE of the trait or the alleles. E.g height; tall is T, short is t. these are the alleles that could make up the height.

Answer:

Sexual reproduction is the production of a new organism from two parents by making use of their sex cells or gametes. The humans, fish, frogs, cats and dogs, all reproduce by the method of sexual reproduction.

Explanation:

Answer:

Gametic Cells

Explanation:

Gametic Cells are called sex cells that enables the process of reproduction in both organisms

Answer:

Penguins generally live on islands and remote continental regions free from land predators, where their inability to fly is not detrimental to their survival. Penguins are usually found near nutrient-rich, cold-water currents that provide an abundant supply of food. ...

Explanation:

Penguins generally live on islands and remote continental regions free from land predators, where their inability to fly is not detrimental to their survival. Penguins are usually found near nutrient-rich, cold-water currents that provide an abundant supply of food.

Predators are organisms that hunt and kill other organisms for food. The organisms that are consumed by the predators are known as the prey. Predators can be carnivores and omnivores. Lions, tigers, sharks, and snakes, all are predators.

Moreover, the best-known examples of predation involve carnivorous interactions, in which one animal consumes another. Think of wolves hunting moose, owls hunting mice, or shrews hunting worms and insects.

Therefore, predators are wild animals that hunt, or prey on, other animals. All animals need food to live. Predator animals need the flesh of the animals that they kill to survive. Weasels, hawks, wolves, mountain lions, and grizzly bears are all predators.

Learn more about predators:

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Answer:

CCU-----AUC----GGC-----AAU

Explanation:

This question is describing the process of transcription, which is the process by which a DNA strand is used as template to synthesize a mRNA strand or molecule. This synthesis in transcription, which is carried out by an enzymes called RNA polymerase, is based on the COMPLEMENTARY BASE PAIRING RULE.

Complementary base pairing rule states that Adenine base will always hydrogen pair with Thymine while Guanine will always pair with Cytosine. However, Uracil base (U) replaces Thymine (T) in RNA. Hence, the pairing is as follows: A-U, T-A, G-C etc.

Based on the above, a DNA strand containing the following sequence: G G A---T A G---C C G---T T A will be transcribed into the following sequence of mRNA: CCU----AUC----GGC----AAU.

Answer:

Understanding the structure and function of DNA has helped revolutionise the investigation of disease pathways, assess an individual's genetic susceptibility to specific diseases, diagnose genetic disorders, and formulate new drugs. It is also critical to the identification of pathogens.

Answer:

5 Million Years Ago

Explanation:

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Answer:

the top of our arms may be darker because they get more exposure to the sun than under our arms causing them to be lighter

Answer:

Robert Hooke discovered cells

Answer:

Alexander Fleming discover the cell in our body

Answer:

Explanation:

If you look the scorpion would only eat the insects so if the insects were removed then the scorpions wouldn't have any food and would die out causing extinction.

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Answer:

respiration is the process of intake of oxygen and excrete out a carbon dioxide by our body.

Answer:

a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

The food making process is called photosynthesis.