A positively chargef particle
1. Is an anion
2. Has a defecit of electrons
3. Has an excess of electrons
4. None of the above
5. Not enough information is given
No links!!!
Answer:
2) Has a deficit of electrons
Explanation:
Electrons have a negative charge, so, if you have less of them, you will have a more positive charge. Hopefully that makes sense
The fluid present between the cell membrane and the nucleus is
Serum
Protoplasm
Nucleoplasm
Cytoplasm
Answer:
cytoplasm
Explanation:
cytoplasm is the gelatinous liquid that fills the inside cell.
T/F According to the stages of change model, once you decide you want to change, you still have to go through a step-by-step process before the change occurs.
According to the stages of change model, once you decide you want to change, you still have to go through a step-by-step process before the change occurs is true.
The stages of change model is a framework that is used to understand how individuals go through the process of change, whether it's changing a behavior or overcoming a problem. According to this model, change is a process that occurs in stages, and not a one-time event.
The stages of change model includes five stages: pre-contemplation, contemplation, preparation, action, and maintenance.
Pre-contemplation is the stage where an individual may not be aware of the problem or is not ready to change.Contemplation is the stage where an individual begins to become aware of the problem and starts thinking about change.Preparation is the stage where the individual starts to make concrete plans to change.Action is the stage where the individual actually starts to take steps to change their behavior.Maintenance is the stage where the individual works to maintain the change over time.To know more about change model refer here:
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compare and contrast the difference between isotonic, hypotonic and hypertonic iv solutions including when they are used and examples of each.
Isotonic solutions have the same osmolarity as bodily fluids, hypotonic solutions have a lower osmolarity, while hypertonic solutions have a higher osmolarity.
What are isotonic, hypotonic and hypertonic iv solutions ?Here is a comparison of the three:
Isotonic solutions: These have the same concentration of solutes as that of the blood plasma. They do not cause any significant movement of water into or out of the cells. Examples of isotonic solutions include 0.9% saline and lactated Ringer's solution. They are used to treat dehydration, shock, and fluid loss due to burns or surgery.
Hypotonic solutions: These have a lower concentration of solutes than the blood plasma. They cause water to move into the cells, leading to swelling and potential rupture of the cells. Examples of hypotonic solutions include 0.45% saline and D5W (5% dextrose in water). They are used to treat conditions such as hypertonic dehydration and hypernatremia.
Hypertonic solutions: These have a higher concentration of solutes than the blood plasma. They cause water to move out of the cells, leading to shrinkage of the cells. Examples of hypertonic solutions include 3% saline and 10% dextrose in water. They are used to treat conditions such as hyponatremia, hypovolemia, and to reduce intracranial pressure.
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Contrast the methods that parasitic, saprophytic and mutualistic fungi use to obtain food
Parasitic fungi obtain food by living on or inside other organisms, which they feed on and often harm.
What is nutrient?Nutrients are substances that are essential for the growth, development, and maintenance of living organisms.
Parasitic fungi feed on and often harm other organisms by living on or inside them. They have specialised structures that allow them to enter the host organism's tissues and absorb nutrients directly from them.
Saprophytic fungi feed by decomposing dead organic matter such as fallen leaves or dead animals. They produce enzymes that degrade organic matter into simpler compounds that they can absorb and use for energy.
Mutualistic fungi get their food from other organisms through mutually beneficial relationships.
Thus, parasitic fungi obtain their food by living on or inside other organisms, saprophytic fungi break down dead organic matter to obtain nutrients, and mutualistic fungi form mutually beneficial relationships with other organisms to obtain food.
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what is the function of the nervous systen?
A. it controls all body activities
B. it removes liquid waste material
C. it transports blood and nutrients to all parts of the body
D. it carries oxygen to the cells and removes carbon dioxide from the body
Which type of fossil do scientists use to compare the relative ages of other fossils?.
Answer:
Index Fossils
Explanation:
Index fossils are used by scientists to help them figure out the dating of discovered fossils or the correlation. They are also very known to appear in a (very) certain/specific age range.
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The image below shows plant cells. What feature of cell theory is best demonstrated in the image? A. Cells are the basic units of structure and make up tissues. B. Organisms have cells with different shapes and functions. C. Cells are formed from other cells. D. Organisms are made up of a large number of cells.
I couldn't see ur picture But I think from the options I think the answer is option D
D) organisms are made up of large number of cells
The feature of cell theory that is best demonstrated in the image is organisms are made up of a large number of cells. Thus, the correct option for this question is D.
What is Cell theory?The cell theory was proposed by two famous scientists. i.e. M.J. Schleiden and T. Schwann. There are three assumptions that fall under the cell theory.
All living organisms whether plants or animals are made up of cells.A cell is the smallest unit of all living organisms.It is the basic structural and functional unit of life.Cell theory was further refined by German biologist Rudolf Virchow in 1855. According to him, all cells are arising from pre-existing cells.
According to the three assumptions given above, the one which is best demonstrated by the image is that Organisms are made up of a large number of cells.
Therefore, the correct option for this question is D.
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Weather is made up of a variety of conditions in the atmosphere. It includes temperature, or the amount of ____ in the air, as well as humidity, the amount of ____ in the air. Pressure is another factor of weather as it affects wind, or the motion of ____. Precipitation also affects weather, and includes ____ and other forms of water that falls from clouds.
OPTIONS:
A) heat, moisture, air, rain
B) moisture, heat, waves, wind
C) heat, water, sunlight, moisture
D) sunshine, heat, coolness, oxygen
Answer:
A
Explanation:
thermostats measure heat, high humidity means it feels moist outside without rain, wind is air, and rain is a type of precipitation
outside the tropics, in the northern hemisphere we find plants adapted to warmer and drier conditions on the south-facing slopes of hills and mountains. in the southern hemisphere, however, such plants are found on north-facing slopes. why?
The distribution of plants adapted to warmer and drier conditions on slopes depends on the exposure to sunlight, which is influenced by the Earth's axis tilt.
In the northern hemisphere, plants adapted to warmer and drier conditions are found on the south-facing slopes of hills and mountains, while in the southern hemisphere, these plants are found on north-facing slopes. This is because of the difference in sunlight exposure due to the tilt of the Earth's axis. In the northern hemisphere, the south-facing slopes receive more direct sunlight throughout the day. This results in higher temperatures and drier conditions, which are better suited for plants adapted to warmer and drier environments.
The reason for this difference is due to the way the Earth's axis is tilted. The tilt causes the sun's rays to hit the northern hemisphere more directly during summer, resulting in warmer conditions on south-facing slopes. In the southern hemisphere, the opposite occurs, and north-facing slopes receive more direct sunlight during their summer.
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does each new cell formed by mitosis have the same or diffent chromosomal material as each ohter
Mitosis have the same chromosomal material as each other they will contain the same number of chromosomes as their parent nuclei.
Cell division is the driving process of the reproduction at the cellular level. Most of the eukaryotic cells will divide in a manner where the ploidy or the number of chromosomes will remains the same, except in the case of germ cells where the number of chromosomes will be halved.
Mitosis is the phase of the cell cycle where the nucleus of a cell will be divided into two nuclei with an equal amount of genetic material in both the daughter nuclei. It succeeds the G2 phase and is succeeded by the cytoplasmic division after the separation of the nucleus.
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which of these are part of the scifitific methood
Which phrase accurately characterizes sexually transmitted infections (STIs)?
are caused by bacteria, viruses, or parasites
always cause visible symptoms
are rarely transmitted by sexual contact
can be contracted only by women .
Answer:
Are caused by bacteria viruses or parasites
Explanation:
not all cause visible symptoms
it would not be a sexual transmitted infection if not caused by sexual contact
STIs can be contracted by men and women
Answer:
a
Explanation:
If you designed your own experiment to prove the law of conservation of matter, what conditions would be required?
Answer:
The amount of matter is conserved when a substance changes form. When matter changes drastically it is not actually destroyed. This can be tested by weighing all the materials involved in an experiment before starting it, and again after the
1.The structure most responsible for maintaining cell homeostasis is the
(1 Point)
cytoplasm
cell wall
mitochondria
plasma membrane
Answer:
Plasma Membrane
Explanation:
Hope this helps any!
What is a quaternary consumer.
The quaternary consumer is an animal that comes at the top of the food chain after the primary consumer.
These animals eat those animals which are at lower levels in the food chain such as secondary and tertiary consumers.
A few examples of quaternary consumers are hawks, white sharks, lions, etc.
In a food chain, a lion as a quaternary consumer starts with a mouse that consumes grass. Afterward, the mouse is consumed by a rabbit, becoming the rabbit’s secondary consumer. Afterward, the rabbit is consumed by a jackal, becoming the tertiary consumer, and lastly, the lion then consumes the jackal, thereby taking him to the position of the quaternary consumer.
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The quaternary consumer is then defined as the one who feeds on tertiary consumers. These are the animals that consumes at the top of the food chain after the primary consumer.
Quaternary consumer primarily prey on or eat animals lower in the food chain than themselves, such as tertiary and secondary consumers. They are usually larger animals. Because they are larger, they also need to eat a lot of food to stay alive, so there are usually fewer quaternary consumers in an ecosystem than other animals.
The quaternary consumers are obligate meat consumers, most are opportunistic predators that eat tertiary, secondary, or even primary consumers. Some examples of quaternary consumers are Eagles, Polar bears, Lions, Tigers etc.
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Even though both hawks and owls have two sources of food, explain why hawks would be less likely to survive if a disease wiped out the mice.
Although both hawks and owls have two sources of food, hawks are less likely to survive if a disease wiped out the mice. Hawks require more than 100 calories per day, while owls need about 50 calories.
As a result, hawks would require more food than owls to meet their dietary needs. Since hawks consume smaller prey like mice, a reduction in the mouse population due to a disease would adversely affect the hawks' survival chances.It is because hawks require more than 100 calories per day, while owls only require about 50 calories. As a result, hawks would need more food than owls to meet their dietary needs. Hawks consume smaller prey like mice, so a decrease in the mouse population due to a disease would adversely affect the hawks' survival chances.
However, owls consume larger prey like rabbits and rodents that offer more calories per meal. As a result, even if the mice population decreased, owls would be able to survive by eating other prey.
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How do traditional expectations based on gender bias in our society, families affect men?
Answer:
Traditional expectations based on gender bias in our society and families can have a significant impact on men. These expectations may include certain behaviors, attitudes, and roles that are deemed appropriate or desirable for men to exhibit. For instance, men are often expected to be strong, independent, and in control of their emotions, while expressing vulnerability or weakness is often stigmatized.
These expectations can be harmful to men in several ways. Firstly, they can lead to men feeling pressure to conform to traditional gender roles, even if they do not align with their personal values or goals. This can limit their opportunities and prevent them from pursuing careers or interests that are traditionally associated with women, such as caregiving or teaching.
Additionally, gender bias can affect men's mental health. Men who are expected to be strong and self-sufficient may feel reluctant to seek help or support when they need it, leading to increased levels of stress, anxiety, and depression. This may also contribute to a lack of social support and feelings of isolation.
Finally, traditional gender roles can impact men's relationships. Men who adhere to traditional gender roles may struggle to communicate effectively with their partners or to share responsibilities in the household. This can create tension and strain on relationships, as well as limit men's opportunities to connect with their families and develop close relationships with their children.
Overall, the traditional expectations based on gender bias in our society and families can have negative consequences for men's mental health, relationships, and opportunities. It is important to challenge these expectations and create more inclusive, equitable, and supportive environments for all individuals, regardless of their gender.
Light energy from the Sun is used by a plant to perform
photosynthesis. Which structure of the plant helps it to absorb this
energy?
Answer:
Chlorophyll absorbs the energy from the sun.
Explanation:
Light absorbed by chlorophyll excites the electrons in the ring as shown below.
Answer:
chlorophyll
Explanation:
The main pigment used in photosynthesis, chlorophyll, reflects green light and most intensely absorbs red and blue light. In plants, chloroplasts containing chlorophyll are subject to photosynthesis.
A double membrane wraps chloroplasts and includes a third inner membrane, the thylakoid membrane, which forms long folds within the organelle.
One of the things we would do in lab this week is the spore stain. It is a two-part stain. What bacterium will you be spore staining? What are the two different stains used, and what do they do?
We will do the staining of an endospore bacterium. We will do spore staining of Spore-forming bacteria include Bacillus (aerobic) or Clostridium (anaerobic) species. We will use Indian ink stain for the staining. Specially Saferin ( for gram negative ) and Crystal Violet ( for gram positive).
Because the gram-positive bacteria retain the crystal violet colour and stain purple whereas the gram-negative bacteria lose crystal violet and stain red. Thus, the two types of bacteria are distinguished by gram staining. Gram-negative bacteria are more resistant to antibodies because their cell wall is impenetrable.
Why we do stain Endospore?The main purpose of endospores staining is to differentiate bacterial spore formers from non-spore formers. Spores are resistant to heat, dessicated chemicals and radiation. Within bacteria, endospores are protective structures used to survive extreme conditions but this protective nature makes them difficult to stain using normal techniques such as simple staining and Gram staining.
What is Indian Ink stain ?The India ink stain is used to stain capsules. Capsules appear as a well defined clear zone around the cell. Capsule formation may be evident in smears from clinical specimens, but not when the organisms are grown on most common laboratory culture media.
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in the nervous system what is central nervous system?
Answer:
central nervous system
Explanation:
The central nervous system consists of the brain and spinal cord. The brain plays a central role in the control of most bodily functions, including awareness, movements, sensations, thoughts, speech, and memory.
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identify one specific hormone in the body, other than glucocorticoid. explain how disruption of the activity of the hormone you identified might upset a feedback mechanism in the body.
Identify one specific hormone in the body, other than glucocorticoid. explain how disruption of the activity of the hormone you identified might upset a feedback mechanism in the body. Estrogen or testosterone interfere with the messages for development of sex characteristics nad insulin prevents regulation of glucose levels in blood.
Estrogen itself has many beneficial effects on the body, including helping optimize the action of insulin that is the hormone that prevents high blood sugar levels. While High insulin levels can tell the ovaries to make more testosterone and can contribute symptoms of estrogen excess like sore breasts, fibroids.
We should balance insulin and estrogen by focus on eating because our whole foods to lower blood this can help reduce estrogen production. To moderate or decrease in serum estrogen levels that enhances the prevalence of insulin resistant states both in men and women.
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Which clay mineral is responsible for cracking in black soil? a. kalonite b. illite c. vermiculite d. montmorillonite Q16: Microorganisms which involve in conversion from nitrite to nitrate is: a. nitrosomonous b. nitrobacter c. psedudomonas d. bacillu
The clay mineral responsible for cracking in black soil is montmorillonite. The microorganisms involved in the conversion from nitrite to nitrate are nitrobacter.
The cracking in black soil is attributed to the presence of certain clay minerals that undergo changes in volume with moisture content. Among these clay minerals, montmorillonite is well-known for its high shrink-swell potential, which leads to cracking when it dries out. Montmorillonite clay swells when it absorbs water and shrinks when it dries, causing the characteristic cracking in black soil.
On the other hand, the conversion from nitrite to nitrate is an essential step in the nitrogen cycle, which involves the transformation of nitrogen compounds in the environment. In this process, nitrite (NO2-) is converted to nitrate (NO3-). The microorganisms responsible for this conversion are nitrobacter.
Nitrobacter bacteria are chemoautotrophic bacteria that obtain energy by oxidizing nitrite ions. They play a crucial role in the process of nitrification, converting nitrite into nitrate through a series of biochemical reactions. Nitrobacter bacteria are commonly found in soil and water environments where nitrification occurs.
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The apocrine glands are dormant until puberty and are concentrated in the axillae, the perineum, and the ....
a) soles of the feet
b) areola of the breasts
c) in the adipose tissue
Answer:
aerola of the breast
Explanation:
because is concerned the breast
what happens to bacterial growth after 40∘ c
Answer:
It depends on the type of bacteria.
Explanation:
Without more information, it would be impossible to tell what would happen to bacterial growth after 40 C. Some bacterial growth will slow, some will undergo a population explosion.
The highly branched contractile cells that regulate capillary permeability are called
A) podocytes.
B) vascular smooth muscle.
C) endothelial cells.
D) pericytes.
E) epitheliocytes
The highly branched contractile cells that regulate capillary permeability are called. The correct answer is D) pericytes.
Pericytes are highly branched contractile cells that are found in close association with capillaries. They wrap around the endothelial cells of capillaries and play a role in regulating capillary permeability. They have contractile properties, which allow them to constrict or dilate the capillaries, thus influencing blood flow and capillary permeability. Option A, podocytes, are specialized cells found in the kidney that are involved in the filtration of blood in the glomerulus, not capillary permeability regulation. Option B, vascular smooth muscle, refers to the smooth muscle cells that are present in the walls of blood vessels and are involved in the regulation of vessel tone and blood flow, but they are not specifically associated with capillary permeability regulation. Option C, endothelial cells, line the interior surface of blood vessels, including capillaries, and play a crucial role in maintaining vascular integrity. While endothelial cells are involved in various vascular functions, including permeability, the specific highly branched contractile cells that regulate capillary permeability are pericytes. Option E, epitheliocytes, refers to epithelial cells, which are found in different tissues and have various functions, but they are not specifically associated with capillary permeability regulation.
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After Pavlov had conditioned his dogs to salivate to the bell, he repeatedly presented the bell without presenting the food. As a result, which of the following occurred?
a. Stimulus generalization.
b. Stimulus discrimination.
c. A spontaneous recovery.
d. Extinction.
After Pavlov had conditioned his dogs to salivate to the bell, repeatedly presenting the bell without presenting the food would result in the process of extinction. Therefore, the answer is d. Extinction.
Pavlov's classical conditioning experiment involved pairing a neutral stimulus (a bell) with a biologically significant stimulus (food) until the neutral stimulus alone became associated with the response (salivation) that was previously only elicited by the biologically significant stimulus (food). After conditioning, the bell alone was able to elicit salivation in the dogs.
To investigate the process of extinction in classical conditioning, Pavlov repeatedly presented the bell (neutral stimulus) without presenting the food (biologically significant stimulus). Over time, the dogs learned that the bell no longer predicted the arrival of food, and the association between the bell and salivation weakened. This process of weakening of the conditioned response due to the repeated presentation of the conditioned stimulus without the unconditioned stimulus is called extinction.
In summary, extinction is the process of weakening the conditioned response by repeatedly presenting the conditioned stimulus without the unconditioned stimulus. Therefore, in Pavlov's experiment, the presentation of the bell without food resulted in extinction of the conditioned response, which was salivation in dogs.
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Read the scenario below and answer the question that follows. a vervent monkey is in a tree eating bugs that are crawling along the branches. the vervent monkey sees a hawk circling overhead. the hawk is a predator of the monkeys. the vervent monkey cries out, warning the other monkeys to descend to the ground below the trees. in this scenario, what is the unconditioned stimulus for the vervent monkey’s behavior? a. the vervent monkey eating bugs b. the vervent monkey crying out c. the group of monkeys descending d. the sight of the hawk circling please select the best answer from the choices provided a b c d
The unconditioned stimulus for the vervent monkey's behavior in this scenario is d. the sight of the hawk circling.
The unconditioned stimulus for the vervent monkey's behavior in this scenario is the sight of the hawk circling.
In classical conditioning, an unconditioned stimulus (US) is a stimulus that naturally elicits a response without any prior conditioning.
In this scenario, the sight of the hawk circling is the unconditioned stimulus because it naturally triggers a response from the vervent monkey.
The presence of the hawk is a potential threat to the monkey's safety, so it instinctively reacts by crying out to warn the other monkeys and prompting them to descend to the ground. The monkey's response is an unconditioned response (UR) because it occurs naturally in the presence of the hawk without any prior learning or conditioning.
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Explain how genes are expressed for a particular
trait.
Answer:
Genes encode proteins and proteins dictate cell function. Therefore, the thousands of genes expressed in a particular cell determine what that cell can do. In addition, the way in which a cell processes its RNA transcripts and newly made proteins also greatly influences protein levels. ..
Explanation:
Answer:
One gene for a particular trait is transcribed from DNA during transcription.
The code for the gene is transferred by mRNA to the ribosome for protein production to begin.
Proteins are constructed from a polypeptide chain of amino acids.
Once the polypeptide chain is constructed, a protein is produced and the trait can be expressed.
Explanation:
edg 2022
The cross section below shows a weather front. The
large arrow shows the direction of the movement of
the cool air mass.
Cool, dry air
dich
City A
Cumulonimbus
clouds
Warm, moist air
A) stationery front
B) warm front
dol
City B
Surface
26) Which type of weather front is shown?
C) occluded front
D) cold front
This fast ascent of warm air leads to the development of towering cumulonimbus clouds and other kinds of thunderstorms.
The type of weather front shown in the given cross section is a cold front.What is a cold front?A cold front is the boundary line between a warm air mass and a cold air mass that are moving in opposite directions.
The cold front typically moves at a faster rate than the warm front since it's denser and heavier than warm air.Cold fronts are known to bring about abrupt weather changes with the advance of the cooler air.
The cooler air mass beneath the cold front is pushed forward quickly, forcing the warm air to rise abruptly over the advancing edge.
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