what is the difference between normal and transient microbiota? answer unselected normal microbiota are permanently present. unselected normal microbiota are on the human body. unselected normal microbiota are opportunistic pathogens. unsure i am unsure normal microbiota cause disease.

Answer:

T

Explanation:

Answer:

B

Explanation:

When there’s more food, the populations that depend on that food with flourish. It is also worth noting for future questions that a decrease in predation will usually lead to an increase in a population of prey. Hope this helps :)

The population of ant (prey) increases, what would you predict the population of the ant-lion (predator) would :

B. Increase, because there is more food available to them.

Thus,the correct answer is B.

Know more :

https://brainly.com/question/23547545?referrer=searchResults

Answer:

Elements

Explanation:

Answer:

they might mate because of there similarities and there similaritie is the fact they eat the same food.

Explanation:

unless they are different types of animals because no animal will mate with another unless they are both the same type, if they are not the same type they feel uncomfortable.

Active transport

Explanation: There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.

Happy to help; have a great day! :)

Answer:

the answer is b

Explanation:

i did the test

In order for the black-haired bull to produce red-haired offspring when bred with a red-haired female, the bull must be heterozygous for the hair color gene. Specifically, the bull must have one dominant black-haired allele.

A gene is a segment of DNA (deoxyribonucleic acid) that contains the instructions for producing a specific protein or RNA molecule. These instructions are encoded in the sequence of the nucleotide bases (adenine, guanine, cytosine, and thymine) that make up the DNA molecule.

Genes are the basic unit of inheritance and determine many of an organism's traits, such as eye color, height, and susceptibility to certain diseases. Genes are located on chromosomes, which are long, thread-like structures made up of DNA and protein that are found in the nucleus of a cell.

The sequence of bases in a gene determines the sequence of amino acids in the protein it encodes, which in turn determines the function of the protein. Some genes encode RNA molecules that have various functions, such as serving as a template for protein synthesis or regulating gene expression.

To know more about Genes visit :

https://brainly.com/question/8832859

#SPJ1

Answer:

Examples of RNA viruses include the AIDS virus HIV, the influenza viruses, ... For example, nearly 80% of all cervical cancers are caused by specific ... Antibodies can also tag viruses so that they can be recognized and destroyed by immune system ... Some viruses cause infected cells to produce another type of cytokines

Explanation:

Answer:

Genetic counselors work as members of a healthcare team, providing risk assessment, education and support to individuals and families at risk for, or diagnosed with, a variety of inherited conditions. Genetic counselors also interpret genetic testing, provide supportive counseling, and serve as patient advocates.

Answer: The correct answer is B

Answer: Energy, Rest, Mental stability,

Explanation:

Those who work the night shift often live shorter than others due to the lack of a normal circadian rhythm and sleep deprivation as some might find it hard to sleep during the day.

Answer:

height, weight, body structure, the colour of their eye, the texture of their hair, and even intelligence and aptitudes.

Explanation:

The correct statement about cytotoxic T cells is Cytotoxic T cells secrete granzymes and perforins that damage target cells.

The correct option is C .

In general , Cytotoxic T cells, also known as CD8+ T cells, are a type of immune cell that play a crucial role in the adaptive immune response to viral and intracellular bacterial infections, as well as in the destruction of cancerous cells.

Also ,Cytotoxic T cells do not stimulate B cell proliferation or secrete interleukin-2 to stimulate B and T cells. They are highly specific for their target cells and require specific recognition of antigens in order to initiate an immune response.

Hence , C is the correct option

To learn more about  Cytotoxic T cells , here

brainly.com/question/29740554

#SPJ4

Answer:

c

Explanation:

I would say C because then you can identify if it was introduced as an exotic species if it is not native. Then you will also be able to identify what type of plant it is with the key.

Answer:Ribosomes are the cellular structures responsible for protein synthesis. When viewed through an electron microscope, ribosomes appear either as clusters (polyribosomes) or single, tiny dots that float freely in the cytoplasm. They may be attached to the cytoplasmic side of the plasma membrane or the cytoplasmic side of the endoplasmic reticulum and the outer membrane of the nuclear envelope. Electron microscopy has shown us that ribosomes, which are large complexes of protein and RNA, consist of two subunits, aptly called large and small (Figure 1). Ribosomes receive their “orders” for protein synthesis from the nucleus where the DNA is transcribed into messenger RNA (mRNA). The mRNA travels to the ribosomes, which translate the code provided by the sequence of the nitrogenous bases in the mRNA into a specific order of amino acids in a protein. Amino acids are the building blocks of proteins.

Because proteins synthesis is an essential function of all cells, ribosomes are found in practically every cell. Ribosomes are particularly abundant in cells that synthesize large amounts of protein. For example, the pancreas is responsible for creating several digestive enzymes and the cells that produce these enzymes contain many ribosomes. Thus, we see another example of form following function.

Mitochondria

Mitochondria (singular = mitochondrion) are often called the “powerhouses” or “energy factories” of a cell because they are responsible for making adenosine triphosphate (ATP), the cell’s main energy-carrying molecule. ATP represents the short-term stored energy of the cell. Cellular respiration is the process of making ATP using the chemical energy found in glucose and other nutrients. In mitochondria, this process uses oxygen and produces carbon dioxide as a waste product. In fact, the carbon dioxide that you exhale with every breath comes from the cellular reactions that produce carbon dioxide as a byproduct.

In keeping with our theme of form following function, it is important to point out that muscle cells have a very high concentration of mitochondria that produce ATP. Your muscle cells need a lot of energy to keep your body moving. When your cells don’t get enough oxygen, they do not make a lot of ATP. Instead, the small amount of ATP they make in the absence of oxygen is accompanied by the production of lactic acid.

This transmission electron micrograph of a mitochondrion shows an oval outer membrane and an inner membrane with many folds called cristae. Inside the inner membrane is a space called the mitochondrial matrix.

Figure 2. This electron micrograph shows a mitochondrion as viewed with a transmission electron microscope. This organelle has an outer membrane and an inner membrane. The inner membrane contains folds, called cristae, which increase its surface area. The space between the two membranes is called the intermembrane space, and the space inside the inner membrane is called the mitochondrial matrix. ATP synthesis takes place on the inner membrane. (credit: modification of work by Matthew Britton; scale-bar data from Matt Russell)

Mitochondria are oval-shaped, double membrane organelles (Figure 2) that have their own DNA and ribosomes (we’ll talk about these later!). Each membrane is a phospholipid bilayer embedded with proteins. The inner layer has folds called cristae. The area surrounded by the folds is called the mitochondrial matrix. The cristae and the matrix have different roles in cellular respiration.

Peroxisomes

Peroxisomes are small, round organelles enclosed by single membranes. They carry out oxidation reactions that break down fatty acids and amino acids. They also detoxify many poisons that may enter the body. Many of these oxidation reactions release hydrogen peroxide, H2O2, which would be damaging to cells; however, when these reactions are confined to peroxisomes, enzymes safely break down the H2O2 into oxygen and water. For example, alcohol is detoxified by peroxisomes in liver cells. Glyoxysomes, which are specialized peroxisomes in plants, are responsible for converting stored fats into sugars.

Explanation:

Facilitated diffusion differs from active transport in that facilitated diffusion does n require the expenditure of energy while active transport does.
Facilitated diffusion is a type of passive transport, meaning that it does not require the input of energy to occur. Instead, facilitated diffusion relies on the natural movement of molecules from areas of higher concentration to areas of lower concentration, also known as a concentration gradient. In contrast, active transport requires the expenditure of energy in order to move molecules against their concentration gradient, from areas of lower concentration to areas of higher concentration.
Overall, the main difference between facilitated diffusion and active transport is the requirement of energy expenditure, with facilitated diffusion being a passive process and active transport being an active process.

Read more about diffusion here:https://brainly.com/question/7161064

#SPJ11

Answer:

Its early life form. I got it right

Explanation:

Answer: Venn Diagram

Explanation: Picture -

Answer:

Here it is, the Venn diagram you asked for lara!

- Kit-Kat <3

This male fiddler crab is waving his claws to attract a female, This is inherited, Option D. This is further explained below.

Generally, inheritance is simply defined as the transmission of genetic traits from parents to children.

In conclusion, The female attraction technique is an inherited attribute,

Read more about Reproduction

https://brainly.com/question/23471979

#SPJ4

Answer:

diffusion is process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.

Explanation:

A familiar example is the perfume of a flower that quickly permeates the still air of a room. ion diffusion across a semipermeable membrane.

Answer:

4. Cells are the basic structure in all living things.

The Yolk – It starts with the yolk forming in the hen’s ovary. When the yolk reaches the right size, it is released into the oviduct, where the rest of the egg will form.

The White – In its journey through the oviduct, the next layer to be added is the egg white (albumen). This layer takes about 3 hours to be formed.

The Shell Membrane – The next layer to be added in the oviduct is the shell membrane. This takes about 1.25 hours. It is a very thin layer between the egg white and the shell, and it almost looks like tissue paper. Have you ever cracked an egg shell but the egg didn’t break? The shell membrane was still intact holding everything together.

The Shell – The egg then reaches the hen’s uterus, also known as the shell gland. This is where the shell is added to the egg. The shell is also formed in layers over the course of 19 hours, where pigment is also added. All egg shells begin as white. Blue and brown pigments are added during the shell forming process. The color of the pigment depends on the breed of chicken.

An interesting note about egg coloration. Brown pigment is added last in the formation of an egg shell. It is only found on the surface of the egg. When you crack open a brown egg, the inside of the egg shell will be white. Blue pigment is added early in the shell formation process. The color will penetrate the entire shell. When you crack open a blue egg, the inside of the shell will be blue. Green eggs are a combination of brown and blue pigments. White eggs contain no pigment at all.

The Bloom – The bloom is the protective layer or cuticle that covers the egg shell and is the last layer added in egg formation. It is added after the egg leaves the uterus, right before it exits from the hen’s vent. This coating seals out bacteria and maintains the moisture inside the egg. Leaving the bloom intact will help keep your eggs fresher, longer.

hope this helps! please mark me brainliest if you can <3

Answer:

Explanation:

Egg formation, also known as ovulation, is the process by which a mature female reproductive cell, or ovum, is released from the ovary. This process occurs in the female reproductive system, which is responsible for the production, maturation, and release of eggs as well as the production of hormones that regulate the menstrual cycle.

Here is a diagram illustrating the process of egg formation:

The process begins with the hypothalamus, a region of the brain that produces hormones that stimulate the pituitary gland to release follicle-stimulating hormone (FSH).

FSH travels through the bloodstream and stimulates the ovarian follicles, which are small sacs containing an immature egg.

One of the ovarian follicles begins to mature and secrete estrogen, a hormone that stimulates the growth and development of the female reproductive organs and the development of secondary sexual characteristics.

As the follicle continues to mature, it releases increasing amounts of estrogen, which causes the lining of the uterus (endometrium) to thicken in preparation for pregnancy.

Around the midpoint of the menstrual cycle, the level of estrogen in the body reaches a peak, triggering the release of luteinizing hormone (LH) from the pituitary gland.

LH stimulates the mature follicle to rupture and release the egg, a process called ovulation.

The egg is then swept into the fallopian tube, where it may be fertilized by sperm if sexual intercourse has occurred.

If the egg is not fertilized, it will be expelled from the body during the next menstrual period.

I hope this helps!

Answer:

d

Explanation:

Scientists use a variety of methods to study changes that have happened both today and in the past. The methods used depend on the specific type of change being studied and the time scale involved.

For current changes, scientists may use direct measurements, such as temperature readings, to monitor changes in climate. They may also use satellite imagery, remote sensing techniques, and computer models to track changes in things like land use, ocean currents, and atmospheric composition.

For past changes, scientists may use a variety of techniques to reconstruct past environments and climates. For example, they may analyze ice cores, tree rings, or sediment layers to study past climate patterns. They may also use fossil records to study changes in biodiversity over time. Additionally, isotopic analysis can provide information about past atmospheric composition and other environmental conditions.

Overall, scientists use a variety of methods and techniques to study changes in the Earth's environment, both past and present. These methods allow them to better understand the causes and effects of these changes, and to make predictions about future changes.

To know more about Scientists

https://brainly.com/question/28988028

#SPJ11

The statement is True. Toddlers begin to recognize gender differences by observing their role models.

Toddlers are highly observant and learn by imitating the behaviour of those around them, particularly their role models. Gender is one of the first social categories that children become aware of, and they start to recognize the differences between males and females early on.

They observe the behaviours, clothing choices, and activities of their parents, siblings, and other significant individuals in their lives, and through these observations, they begin to form a concept of gender. These early experiences contribute to the development of their own gender identity and understanding of societal gender roles. Therefore, it is true that toddlers begin to recognize gender differences by observing their role models.

To learn more about development, click here:

brainly.com/question/29764480

#SPJ11

Lithium when mixed with potassium is stronger than pure lithium because the tendency to lose electrons is greater in potassium than that in lithium.

The reason behind this phenomenon is that potassium contains more loosely bonded valence electrons in comparison with lithium alone. If we talk about more direct reactions, potassium reacts more aggressively than lithium alone. The outer electron of potassium is far away from the positive magnetism of the nucleus in comparison to lithium so potassium show high reactivity.

Another reason to sum up potassium in front of lithium is that its ionizing enthalpy (amount of energy to remove an electron from an isolated gaseous atom in its gaseous state) is minimum in comparison to lithium.

To learn more about Potassium and Lithium reaction,

https://brainly.com/question/396151

Answer:

An actual computer virus is a malicious software, often known as malware, that can harm a computer and its users.

Virus hoaxes are false or misleading information about viruses that circulate through various communication channels.

They can be more dangerous than actual viruses due to their ability to spread quickly, cause panic, and undermine effective public health measures.

Virus hoaxes are deceptive messages or claims that often exaggerate the severity or impact of a particular virus. They can be spread through social media, email chains, or word of mouth. These hoaxes may include misinformation about symptoms, transmission methods, or false remedies, leading people to take ineffective or even harmful actions.

What makes virus hoaxes particularly dangerous is their potential to create panic and misinformation at a rapid pace. The viral nature of social media and other communication platforms allows these hoaxes to reach a wide audience within a short period. As a result, people may make decisions based on false information, such as avoiding necessary medical treatment, taking unnecessary precautions, or spreading fear and misinformation to others.

Moreover, virus hoaxes can undermine public health efforts by diverting attention and resources from legitimate preventive measures. They can erode trust in healthcare authorities and disrupt the dissemination of accurate information, making it harder for individuals to make informed decisions and follow recommended guidelines.

This can have severe consequences, especially during outbreaks or pandemics, where timely and accurate information is crucial for public safety. Therefore, it is essential to verify the credibility of information and rely on trusted sources to mitigate the risks associated with virus hoaxes.

Learn more about viruses :

https://brainly.com/question/29156932

#SPJ11

The addition of an anti-CAP antibody to the mix would cause a mobility shift in the EMSA.

Option (f) is correct.

In an electrophoretic mobility shift assay (EMSA), a mobility shift occurs when a DNA-protein complex forms, altering the migration pattern of the DNA fragment during electrophoresis. In this case, the bacterial cell extract likely contains the CAP protein, which can bind to the CAP binding site of the lac operon DNA fragment.

The options glucose, lactose, allolactose, and cAMP are small molecules or metabolites that can affect gene regulation in the lac operon, but they do not directly interact with the DNA-protein complex formed in the EMSA. Therefore, they would not cause a mobility shift.

On the other hand, an anti-CAP antibody specifically targets and binds to the CAP protein. If added to the mix, the anti-CAP antibody can form a complex with the CAP protein, potentially interfering with its binding to the DNA fragment.

Therefore, the addition of the anti-CAP antibody would result in a mobility shift in the EMSA.

To learn more about  electrophoretic mobility here

https://brainly.com/question/31781775

#SPJ4

Complete question is:

For an electrophoretic mobility shift assay, you mix in a test tube bacterial cell extract and a 32-P-labeled fragment of DNA that contains the CAP binding site and the lacP of the lac operon. Which of the following would cause a mobility shift if added to the mix?

a) glucose

b)lactose

c) allolactose

d) cAMP

e) anti-lac repressor antibody

f) anti-CAP antibody

The volume of Arwan’s piece of quartz is 303.42 cm³

Volume is described as a measure of occupied three-dimensional space or the amount of space that a substance or object occupies, or that is enclosed within a container.

Mass of the Quartz piece brought by Arwan = 788.9 g

Density of the quartz = 2.6g/ cm³

Density of the substance is described as mass present in per unit volume of the substance. It is measured in gram per centimeter cube.

Density = mass/volume

2.6 = 788.9/ volume

volume =  303.42  cm³ .

Density is denoted as mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume.

Density has the units of measurement in mass divided by volume such as grams per centimeters cube (g/cm3) or kilograms per liter (kg/l)

Learn more about volume at: https://brainly.com/question/463363

#SPJ1

The complete question is:

Arwan finds a piece of quartz while hiking in the mountains. When he returns to school, he takes it to his science teacher. She helps him determine the mass to be 788.9 g. She also tells Arwan that the density of quartz is 2.6 . What is the volume of Arwan’s piece of quartz?

Temperature and sea ice cover are likely to be particularly important in revealing the most important features of the climate.

Firstly, it's important to understand that climate is a complex and multi-faceted topic that encompasses a range of different factors, including temperature, precipitation, wind patterns, and more. Given that the Inuit lived in Greenland, which is located in the Arctic region, it's likely that temperature and sea ice cover would be particularly important factors in characterizing the past climate.

In terms of temperature, it's important to understand not just the average temperatures throughout the year, but also the extent to which temperatures fluctuated on a daily or seasonal basis. This could help to shed light on factors such as the availability of different resources (e.g. hunting, fishing, foraging) at different times of year, as well as the strategies that the Inuit may have used to adapt to these changing conditions.

Sea ice cover is also likely to be an important factor in characterizing the past climate of the Inuit in Greenland. The extent of sea ice cover would have a significant impact on the availability of resources such as fish and marine mammals, which were likely important sources of food and other materials for the Inuit. Additionally, the thickness and stability of the sea ice could have important implications for travel and transportation, as well as for the construction of shelters and other structures.

Temperature and sea ice cover are likely to be particularly important in revealing the most important features of the climate. However, it's also important to keep in mind that there are a range of other factors that could also be important, and that a comprehensive analysis of the past environment would likely need to take all of these factors into account.

To know more about climate, refer

https://brainly.com/question/28214569

#SPJ11