During which period of development is the unborn baby most at risk of developing a structural defect due to the effects of a teratogen, such as zika virus or lead?

A shaded bar that provides a visual cue about the value of a cell relative to other cells is a data bar

Data bars are an effective visual aid you may use in Excel to aid in the comprehension of the data you are presenting. Data bars are a type of conditional formatting that alters depending on the data being displayed. The longer the bar, the more prominent it is in a cell, the larger the number.

Click Conditional Formatting in the Format section of the Home tab. Click a solid fill or a gradient fill after pointing to the Data Bars.

A particular kind of conditional formatting called a data bar produces a visual impact in your database cells that is related to the contents of the cell. A cell with a longer bar indicates a value that is greater, whereas a cell with a shorter bar indicates a value that is lower.

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The tubes and bottles are autoclaved in order to sterilize the nutrient broth and nutrient agar.

To rid (something or someone) of all live microbes in order to make it sterile (as by the use of steam or dry heat) Use an autoclave to sterilize surgical instruments. to surgically sterilize cats and dogs in order to remove their reproductive ability.

Combining heat, chemicals, irradiation, high pressure, and filtration can result in sterilization. Examples include the use of steam under pressure, dry heat, UV radiation, gas vapor sterilant, chlorine dioxide gas, etc.

To stop the spread of diseases linked to the usage of an object, sterilization eliminates all bacteria on its surface or in its fluid.

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Answer:

There are two main waves; transverse and longitudinal. Transverse waves are like the waves we see in the ocean when we are at the beach. Longitudinal waves consist of sound, but different. Longitudinal waves have more complex properties than sound waves. They follow a consistent pattern of compressions and rarefactions within a(consistent) medium.

In-case you wonder what a medium is, a medium is the substance that carries the wave. Remember that it only transports the wave, and it plays no part in actually making the wave. When waves crash, the particles within the medium are disturbed, so they carry/pass on the disturbance to keep the wave's pattern consistent.

Hope this helps you!

Answer: I hope this helps I had no idea

Explanation:

I don’t really know but I have always heard natural is better but with natural immunity you have to keep up with a vitamin which you dispose of during the day vaccine immunity will stay in your body longer

In the digestive tract the most microbial diversity can be seen in the large intestine.

Digestive tract begins from the organ where the food is taken in to where the waste from digested material is excreted out. Thus, the digestive tract begins from the mouth and extends till the opening of the rectum.

Large intestine is smaller than the small intestine and surrounds it from all sides. It has three parts: cecum, colon and rectum. The colon part of the large intestine exhibits maximum microbial diversity. This is because there is lesser amount of oxygen concentration and anti-microbial compounds at this region.

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Hemorrhagic stroke is a type of stroke correlates with the clinical manifestations of a severe headache.

Hemorrhagic stroke- The term "hemorrhage" also refers to bleeding, which is the loss of blood. Internal bleeding is when it occurs within the body, while external bleeding is when it happens outside the body.

Severe headache- The agony of a migraine headache is frequently characterized as throbbing and hammering. They typically occur one to four times each month and can last anywhere from four hours to three days. Along with the discomfort, individuals also have additional symptoms including sensitivity to light, sound, or scents; nausea or vomiting; appetite loss; and an upset stomach or pain in the abdomen.

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It's a chocolate-based introduction to the rock cycle!

Like rocks, chocolate can be squeezed, heated, cooled, and weathered into tiny particles. Chocolate can go through these processes safely and at normal temperatures, unlike rocks.

Create "sedimentary," "metamorphic," and "igneous" chocolate using your supply of chocolate. Make a wonderful treat at the end of it all!

Materials:

Making "sedimentary" chocolate first:

1. Scrape a few tiny pieces of chocolate from your blocks.

2. Place all of these scrapings on a piece of aluminum foil and push down. You could press the chocolate shavings onto the aluminum foil after folding it. You may even stand on foil packets that were sealed.

3. Note how the consolidated group of chocolate scrapings in the foil now resembles sedimentary rock.

Make "metamorphic" chocolate next:

1. Fill some aluminum foil or a cupcake holder with a small pile of your sedimentary chocolate, possibly some of your original unused scrapings, and a few small chunks from your initial blocks.

2. Float this mixture in water that is moderately heated.

3. Keep an eye on the foil and chocolate as they begin to melt when the heat from the water is transferred to them.

4. When the chocolate feels soft to the touch, remove the foil (for safety, use the plastic knife, not the fingers).

5. Allow the chocolate to cool. The chocolate has now chilled and only half melted, resembling metamorphic rock.

Make "igneous" chocolate next:

1. Fill your aluminum foil or cupcake holder with a tiny mound of sedimentary and metamorphic chocolate and a few pieces from the initial blocks.

2. Float this mixture in extremely hot water.

3. Observe how the heat from the water is transferred to the foil and melting chocolate. The chocolate should be allowed to melt until smooth liquid forms.

4. Carefully remove the melted chocolate from the aluminum container and let it cool. Now that your chocolate has melted and cooled, it resembles volcanic rock.

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Pedigrees are tools used to track a gene or a phenotype through several generations of a family's history. Option C is correct. I-1, I-2, II-4, II-5, III-1

A Pedigree is a tool used to represent a family's history and to trace a feature in the family.

It is used to track a trait through generations, and analyze the inheritance pattern of a particular gene and its expression.

It is used to understand how genes are transmitted from the parental generation to the descendants, and what are the probabilities of  inheriting them.

Pedigree interpretation,

→ Individuals are represented with geometrical figures.

→ Males are squares

→ Females are circles

→ Healthy/normal/not affected  individuals are represented with empty figures

→ Affected/mutated individuals are represented with solid black figures

→ Each file is represented with a roman number, indicating the Generation.

To analyze this example, we will assume the feature is coded by a diallelic gene that expresses complete dominance.

AA ⇒ homozygous dominant individuals  ⇒ normal

Aa ⇒ heterozygous indidivuals ⇒ normal

aa ⇒ homozygous recessive individuals ⇒ afected

Individuals with heterozygous genotype are

Option C is correct. I-1, I-2, II-4, II-5, III-1

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Complete question (image in the attached files)

If the pedigree is for an autosomal recessive characteristic, which individuals are definitely heterozygous?

a) I-1, I-2, II-2, II-4 and II-5

b) I-1, I-2, I-4, III-1

c) I-1, I-2, II-4, II-5, III-1

d) II-2, II-4, II-5, II-3

e) II-2, II-4, II-5, III-1

Anti-predator variations are mechanisms advanced thru evolution that help prey organisms of their consistent warfare towards predators.

Mimicry happens while one species of animal (the mimic) resembles every other species that has without problems recognizable characteristics (the model) and as a end result deceives a capacity predator (the dupe) that could in any other case seize and devour it.

Vegetation and herbal items so that it will guard themselves from predators, known as as protecting mimicry. Predatory animals mimic a few herbal item in order that their prey get pressured and is without problems attacked or caught.Mimicry is an edition that creatures have that makes them mimic different dwelling things. Camouflage is an edition that creatures use to cover themselves from different creatures through mixing into their environment.

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In contrast to the sympathetic nervous system, the parasympathetic nervous system controls the functions when an individual is at rest.

Sympathetic nervous system controls the body's fight or fright response. This means it is functional when the body undergoes some stress, danger or excitement. The hormones associated with it are epinephrine and nor-epinephrine.

Parasympathetic nervous system controls all the activities that relax the body. These functions include digestion, breathing, lacrimation, etc. The chemical released during this response is acetylcholine. Acetylcholine can bind to two types of receptors: nicotinic receptors and muscarinic cholinergic receptors.

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Answer:

Okeystone species

Explanation:

Transport proteins (transporters) require energy expenditure for each molecule of substrate transported. the reason for this energy requirement is option(a) i.e, the solute must be transported against a concentration gradient.

Transport proteins are integral transmembrane proteins, which means they span the membrane across which they transport things and remain there permanently. Through enhanced diffusion or active transport, the proteins may aid the movement of molecules. Transport proteins that participate in assisted diffusion include channel proteins, gated channel proteins, and carrier proteins.

Transport proteins enable everything from nerve impulses to cellular metabolism by transferring molecules across membranes. For instance, the sodium-potassium gradient that causes our nerves to fire would not exist without transport proteins.

The cell membrane contains transport proteins that enable the selective transit of particular molecules from the surrounding environment. Each transport protein recognizes a particular molecule only (indicated by matching colors).

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The complete question is:

Transport proteins (transporters) require energy expenditure for each molecule of substrate transported. The reason for this energy requirement is __________.

A) the solute must be transported against a concentration gradient

B) the solute must be forced through the hydrophobic membrane

C) the conformational shape of the solute must be changed during transport

D) the solute must be chemically altered

ethanol has maximum 4.3%  error in the sample

Equation for percent   error                                                                                       = (Measurement value - accepted value)/accepted value x100

for seawater :

Accepted Value  100.7      101.8

       percent   error = 101.8-100.7 ÷ 100.7 × 100

                           = 1.09%

for mercury :

Accepted Value 359.6    Measurement value   370.0

percent   error =  370.0 -  359.6  ÷  359.6  × 100

                      = 2.89%

for jet fuel :

Accepted Value   163.0              Measurement value 165.9

percent   error =  165.9 - 163.0  ÷  163.0   ×  100

                          = 1.77%

 for  ethanol (alcohol) :

Accepted Value   78.4                 Measurement value 81.8

percent   error =  81.8 - 78.4 ÷   78.4  ×  100

                      = 4.3%

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Phlegm i think this is the correct answer hopefully this helps

A good or "valid" experiment will only have one independent variable that you will test.

In the field of research, an independent variable is the one that can be changed and the effects of these changes are studied. An independent variable is a variable that is not varied by other variables. A dependent variable is one that gets affected by the changes in the independent variable.

It is important that one independent variable be studied at a time in order to produce accurate results a study. If we study more than one variable in a single experiment, then we won't be able to analyze which independent variable was responsible for producing a change. Hence, in order to accurately study the effects of an independent variable, it is good that only one variable is studied in an experiment.

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During transcription, rna polymerase synthesizes RNA strand from a(n) DNA template.

Transcription is a classic event in molecular biology in which the DNA is transcribed to mRNA.

Transcription is an important event mentioned in central dogma of molecular biology. It is from transcription, translation (synthesis) of proteins is possible.

Transcription occurs at specific site in the cell. In prokaryotes, transcription takes place in cytoplasm whereas in eukaryotes, nucleus is the site for transcription.

Transcription involves three main steps:

After transcription, processing of mRNA is carried out so that it becomes mature and fully functional for translation process.

Therefore, transcription is important in copying information from DNA sequences for the correct synthesis of proteins.

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Answer:

A mutation occurred in the gene that encodes the enzyme sucrase, resulting in a single amino acid substitution in the active site of the enzyme. A polar amino acid was changed to a nonpolar amino acid.   The result of this mutation sucrase will not be ale to bind in the active site.

Explanation:

A digestive enzyme known as sucrase catalyzes the breakdown of sucrose into its component sugars, both glucose plus fructose. One kind, sucrase-isomaltase, which is secreted at the brush boundary of the small intestine. A condition known as congenital sucrase-isomaltase insufficiency impairs a person's capacity to digest particular sugars. The carbohydrates sucrose and maltose could not be broken down by those who have this disease.

Which foods include sucrose?

Vegetables and fruits contain sucrose, which is extracted from the sugarcane and used in food manufacturing and cooking. Sugar cane , grapes, oranges, beets, as well as other vegetables and foods all usually have the same amount of sucrose as the sugar inside the sugar bowl. Components for other sugars.

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The bone that is situated next to the eardrum is called the malleus.

The bone that sits next to the oval window is called the stapes.

Given,

The bone that is situated next to the eardrum is called the __________; the bone that sits next to the oval window is called the __________.

We need to fill in the blanks.

The eardrum is a transparent gray membrane and there is a middle ear

bone called the malleus attached to the center part of the drum.

The space inside the ear drum is called the middle ear.

The three smallest bones of the body are found in the middle ear.

They are:

- The hammer (malleus)

It is attached to the eardrum.

- The anvil (incus)

It is in the middle of the chain of bones.

- The Stirrup (stapes)

It is attached to the membrane-covered opening that connects the middle ear with the inner ear (oval window)

Thus

The bone that is situated next to the eardrum is called the malleus.

The bone that sits next to the oval window is called the stapes.

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The avascularity of epithelial tissues is almost complete. For example, no blood arteries may get through the basement membrane to enter the tissue, therefore nutrients must be absorbed or diffused from the surface or underlying tissues.

The epithelium is a type of body tissue that covers all of the internal and exterior body surfaces, lines hollow organs and body cavities, and makes up the majority of glandular tissue.

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Answer:

2

Explanation:

A hypothesis uses "IF" and "THEN"

Option D: The cells in the nervous system that handle information processing are called neurons.

Nerve cells, often called neurons, are the building blocks of the nervous system. They interact with the information and transfer this information along various distances through electrical impulses. The nervous system is generally made up of two types of cells: nerve cells and glial cells. Glial cells are the supporting system of neurons. The nervous system is broadly divided into two categories:

The central nervous system (CNS) contains the brain and spinal cord

The peripheral nervous system (PNS) contains neurons and their parts such as sensory neurons and motor neurons.

Analysis of the information brought in by sensory neurons is done in CNS while PNS works as transportation for these signals from one neuron to another. Motor neurons carry the signals out of the CNS after analysis.

Information processing in the nervous system is handled by neurons or their parts like interneurons that connect one neuron to another in the CNS.  These signals are then transferred by motor neurons to respond to stimuli.

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Within eukaryotic cells, Nucleus is surrounded by a double membrane and carries the coding that determines protein synthesis.

Nucleus- In terms of genomics, a nucleus is the organelle inside a cell that is membrane-enclosed and houses the chromosomes. The nuclear membrane has a variety of pores that enable the selective transit of certain molecules (such proteins and nucleic acids) from and to the nucleus.

Genomics- In order to understand the structure and function of these sequences and of the ensuing biological products, genomics is the study of all or a portion of an organism's genetic or epigenetic sequence information.

Protein Synthesis- The primary process by which amino acids are disposed of is protein synthesis.

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Answer:

Explanation

Explanation:

The word is explanation

In a membrane, the tail of the phospholipids in one monolayer face the tail of the phospholipids in the other monolayer.

Phospholipids are crucial for avoiding cell leakage. Phospholipid bilayers are essential to every cell in order to prevent molecule leakage through membranes. A cell's membrane is where the vast bulk of its phospholipids are found. The primary substance of the cell membrane is a phospholipid, a kind of lipid molecule. Lipids are a class of chemicals that include, among other things, waxes, certain vitamins, and fats. Two fatty acids, a phosphate group, and a glycerol molecule make up each phospholipid. Phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, and phosphatidylserine are the four most prevalent phospholipids.

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If a cell has a relatively high energy need, you would expect it to have fewer mitochondria than a cell with a lower energy need. Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that provide the majority of the chemical energy required to fuel the cell's metabolic activities. Mitochondria are structures within cells that transform energy from meals into a form that cells can use.

Each cell includes hundreds to thousands of mitochondria, which are found in the fluid that surrounds the nucleus (the cytoplasm). Mitochondria (singular: mitochondrion) are a double membrane-bound organelle found in most eukaryotic species. They are present inside the cytoplasm and serve as the cell's "digestive system."

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Lant cells have two energy-related organelles Chloroplast, harness light energy to create sugars and Mitochondria, break down these sugars to create ATP.

Chloroplast- The primary process for converting solar radiation energy into chemical energy that organisms may use takes place in chloroplasts. As a result, they make up around 50% of the protein in leaves, and the chloroplast's ribulose-1,5-bisphosphate carboxylase is by far the most prevalent protein on Earth.

Mitochondria- The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP).

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Cardiac cycle consists of alternate periods of emptying and filling also called systolic phase.

Systole typically refers to Ventricular systole, during which the ventricles are pumping blood out of the heart through the aorta and pulmonary veins.  The ventricles are filled with blood in two stages - diastole and atrial systole . In diastole ,  both the atria and the ventricles are relaxed.

Systolic phase describes the period that starts when the heart is maximum filled with blood and then ejected from the ventricle to the aorta .

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Relative density is the ratio of density of a mineral to the density of freshwater.

What is density?

The substance's mass per unit of volume is known as its density (or specific mass). Density is most frequently represented by the symbol ρ (the lower-case Greek letter rho). Its unit is kg/m³

Relative density is the ratio of density of a mineral to the density of freshwater. It's a dimensionless and unitless constant. It depends on the material.

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Nutritionists typically work with individuals or populations to teach them more about general nutrition, food and health.

1- Nutritionist:

The Nutritionist is a person who advises other people on the matter of food and nutrition and also the impacts on the life of the peoples. Some people specialize in particular subjects like sports, food, public health and animal and in many others subjects.

2- Psychologist:

A psychologist is a person who practices the psychology and other mental healths which relates with the emotional behaviour of the patient. Their work usually includes the experiments, interpretation and many other things.

3- Osteologist:

Osteologist is a person which study about the bones. The osteologist is the sub discipline of anatomy, anthropology, and paleontology. It is that study in which the student learns about the deep study in bones.

4- Geneticist:

The Geneticist is that kind of study in which the student learns about the genetics, heredity, the science of genes and variation of organism.  A geneticist can be employed as a scientist or a lecturer.

So we can conclude that: Nutritionists typically work with individuals or populations to teach them more about general nutrition, food and health.

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