The scale below shows the pH levels of various liquids. Which of the following substances is a strong acid?

The action that is likely to cause air to enter the victim’s stomach (gastric inflation) during bag-mask ventilation is ventilating the patient when is chest is not rising.

Gastric inflation is the process in which air is been blown into the stomach of the patient which can be as a result of inflation of the lungs during lung or bag mask ventilation.

Therefore, The action that is likely to cause air to enter the victim’s stomach (gastric inflation) during bag-mask ventilation is ventilating the patient when is chest is not rising.

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The strategy used to assess blood pressure among other parameters is; Choice C; Psychophysiological techniques.

In a bid to assess blood pressure, papillary dilations and other parameters, Psychophysiological technuques characterized by the study of the relationship between physiological signals recorded from the body and brain to mental processes and disorders. These biological signals in discuss are often generated by organ activity or by muscle activity

Remark;

A. Cognitive-functional analysis

B. self-monitoring procedures

C. Psychophysiological techniques

D. SIgnal detection strategy

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Answer:

Genetic diversity is a good principle for secure development because it is critical for a population to adapt to changing environments. It helps maintain the health of a population.

Explanation:

Genetic Diversity refers to the range of different inherited traits within a species. In a species with high genetic diversity, there would be many individuals with a wide variety of different traits.

Mutations are important to genetic diversity because it creates a new DNA sequence for a particular gene, creating a new allele. This is important because including alleles that are diverse may be valuable in resisting diseases, pests, and other stresses

Genetic diversity is a good principle for secure development because it ensures the chances of adaptation in living organisms with respect to changing environmental conditions.

Genetic diversity may be defined as the total number of genetic characteristics in the genetic makeup of a species. It serves as a way for populations to adapt to changing environments. It facilitates the survival of particular species.

A lack of diversity may have a negative impact on security. This can be understood by the example that if there were not many variables seen in the Darwin finches in the Galapagos islands, more birds feel the scarcity of food and due to this, they have died and become extinct from nature.

Therefore, with more genetic variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment.

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The preferred prey item would be frogs.

What is optimal foraging theory?

It is a theory in ecology that proposes that predating animals that get the most energy from minimal efforts are favored by natural selection.

In order words, selection forces prefer investing minimum energy in order to extract maximally available energy.

In this case, the heron needs to use the lowest time to harvest the maximum energy possible. Since all the preys offer the same amount of energy, the one that requires the lowest time would be preferable for the heron.

In other words, frogs would be the most preferable prey.

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The concentration of lipids necessary to prepare liposomes with a diameter of 250 nm is 0.30 mM.

Liposomes are vesicles which are made up of a lipid bilayer membrane.

Liposomes are important as delivery vehicles for substances such as drugs.

Ultrasonication is a method of liposomes preparation.

Solution of liposomes is dependent on the size.

The larger the diameter, the smaller the l elution volume. Also, increasing lipid concentration will decreases elution volume.

Therefore, the concentration of lipids necessary to prepare liposomes with a diameter of 250 nm is 0.30 mM.

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Copernicus rediscovered Aristarchus's heliocentric model. Thus, option "B" is correct.

The event which took place during the Copernican revolution, when most people started to believe in the heliocentric model of the solar system was that Copernicus rediscovered Aristarchus’s heliocentric model.

Thus, option "B" is correct.

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Thirty-four (34) ATP is generated from the electron transport chain.

It is one of the steps through which energy is extracted from glucose during respiration.

Two molecules of ATP are generated from glycolysis, 2 are generated from the citric acid cycle, and 34 are generated from the electron transport chain.

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The middle cranial fossa ranges from the posterior edge of the lesser wings of the sphenoid bone (anteriorly) to the anterior region of the petrous part of the temporal bone (posteriorly). It houses the temporal lobes of the brain and the pituitary gland.

Pituitary gland is located within the Mid-brain. It is an endocrine gland, about the size of a pea, that sits in a small, bony cavity at the base of the brain whose secretions control the other endocrine glands and influence growth, metabolism, and maturation.

It lies in the Sella turcica of the sphenoid bone (A compound bone at the base of the skull behind the eyes)

Thus, the middle is the answer.

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According to the research, the statement is true, animal viruses often have glycoprotein spikes on their capsids or envelopes.

It is an obligate intracellular parasite, small in size, made up of nucleic acid and protein.

They have a layer or envelope of lipids and glycoproteins, which they obtain from the cell membrane of their host cells, and which is used to inject genetic material into the cell.

Therefore, we can conclude that according to the research, the statement is true, animal viruses often have glycoprotein spikes on their capsids or envelopes.

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Answer:

A

Explanation:

To protect itself and repond quickly to dangerous situation

A hypothesis can be discarded due to the emergence of empirical evidence rejecting its assumptions.

A scientific hypothesis is a given explanation about a phenomenon of the real world that is tested by using the scientific method.

Hypotheses are rejected or confirmed by collecting empirical evidence through experimental or observational procedures.

In conclusion, a hypothesis can be discarded due to the emergence of empirical evidence rejecting its assumptions.

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Answer:

1→4→5→3→2

∙

Mitotic cell division starts with the condensing of chromosome accompanied by splitting of the centrosome and its movement towards the opposite poles.

∙

As the nuclear envelope and nucleolus disappear, spindle fibres arise from the centrosomes and start binding to the condensed chromosomes at the centromeres.

∙

The chromosomes bound by the spindle fibers are then arranged in the middle of the cell forming the equatorial metaphase plate.

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Next the centromere splits and the sister chromatids are pulled away towards the poles by the contraction of spindle fibres.

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Following this, a cleavage furrow starts to develop in the middle of the cell while the nuclear membrane starts to reappear around the separated chromatids.

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The condensed chromatids start thinning into chromatin fibre along with reappearance of the nucleolus and the cleavage furrow deepening further.

∙

Finally as the nuclear membrane becomes fully intact, the cleavage furrow deepens and split the cells from middle into two daughter cells.

The decussation of pyramids refers to crossover of major motor tracts in the medulla oblongata region of the brain.

The medulla oblongata is the bottom most part of the brain.

It serves as the point where the brain and spinal cord connect, making it a key conduit for nerve signals to and from the body.

It also helps control vital processes like your heartbeat, breathing and blood pressure.

Thus, the decussation of pyramids refers to crossover of major motor tracts in the medulla oblongata region of the brain.

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Answer:

veins

Explanation:

Veins carry oxygen-poor (deoxygenated) blood back to the heart, whereas arteries carry oxygen-rich blood away from the heart.

Explanation:

The best explanation for this observation is that the proteins from parts of the cell membrane that were not bleached with the laser diffuse into regions of the membrane that were bleached.

It should be noted that observation means the active acquisition of information from a source.

In this case, the best explanation for this observation is that the proteins from parts of the cell membrane that were not bleached with the laser diffuse into regions of the membrane that were bleached.

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Answer:

Explanation:

Using the Inscribed Angle Theorem:-

--------——–—---------

To answer this question

   ⇒ must consider what theorem to use

Theorem used:

 ⇒ Inscribed Angle

    ⇒ states that inscribed angles like ∠EFG are half the arc angle

In other words

  [tex]31x+3=\frac{1}{2}*192\\\rm \hookrightarrow 3x+3=96\\\rm \hookrightarrow31x=93\\\rm \hookrightarrow x=3[/tex]

Answer: x = 3

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The primary tissue type comprises the highlighted structure is nervous.

Nervous tissue is a communication tissue, capable of receiving, interpreting and responding to stimuli. Nerve tissue cells are highly specialized in processing information. Neurons transmit nerve impulses and glial cells collaborate with nerve impulses.

In this case, nerves are structures formed by bundles of nerve fibers, which are part of the peripheral nervous system and act ensuring communication between different parts of the body and the central nervous system.

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a. the starting cell is 2n. how many chromosomes does it have?

b. hom many chromosomes will it have after Meiosis 1?

c. how many chromosomes will it have after Meiosis 2?

observe a sample of the cells with a light microscope

Explanation:

.

Answer:

option c. 1 is correct.

*For detailed explanation refer to the attachment.

The advantage of starting with the 4x objective before moving to the 10x and then the 40x objective is that the lower power objective has a larger field of view and is easier to focus.

An objective lens of a microscope are those lens that are used to focus that sample on a slide and they are always the closest lens to the slides.

The four types of objective lens of a microscope include:

The advantage of starting with the 4x objective before moving to the 10x and then the 40x objective is that the lower power objective has a larger field of view and is easier to focus.

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Gene is the basic unit of heredity that carries the trait of albinism from parent to offspring.

This is referred to as the unit of hereditary and is usually transferred from the parent to offspring.

The albinism trait is therefore inherited by the offspring as a result of the gene which is the most appropriate choice.

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