Which is NOT a protective
covering for the moneran?
A cytoplasm
B. cell wall
C. capsule
D. cell membrane
Answer
Explanation:
C.capsule
(b) Describe how a student could test cow's milk to show whether it contains protein
different types of carbohydrate.
To show that cow milk contains protein and different types of carbohydrate,food tests should be carried out by the student.
Carbohydrates (sugars) are the main sources of food through which the body derives energy from.
The various types of carbohydrate are the simple sugars, complex sugars and starch.
Proteins are the main body-building substances which are necessary for the maintenance of health.
The cow milk contains proteins and a type of carbohydrate called lactose which is an example of complex sugar.
To test for protein in milk, xanthoproteic reaction test should be carried out by the student. The procedure includes:
To the milk solution add a few drops of concentrated nitric acidA white precipitate forms, which turns yellow on heating.Cool the contents and add a few drops of ammonia solution.The colour of the precipitate deepens to yellow indicating presence of protein in the cow milk.To test for carbohydrate in milk, a test for complex sugar should be carried out by the student. The procedure includes:
Add milk solution and hydrochloric acid into a test tube. Place the test tube inside a boiling water-bath.The acid hydrolyses the complex sugar to simple sugars.Fehling's test is then carried out on the simple sugars that are formed which are glucose and galactose.An orange-red precipitate indicates a positive result.Learn more here:
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The description of a cell organelle is given below.
found in animal and plant cells
breaks down food molecules
makes ATP
What organelle is being described?
mitochondria
lysosomes
chloroplasts
ribosomes
Answer: mitochondria
In year 0, there are 789 bees in a population. The death rate is .21bees/year and the birth rate is .14bees/year. What will the population be in year 1?plsss help I have 19minutes left on my test !!!
Answer:
hcfdfvjxdhjgxgm
Explanation:
How are biodiversity and the cycling of matter
related to maintaining ecosystem services
Answer: biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.
Biodiversity and the cycling of matter are related to maintaining ecosystem services because they ensure the functioning and stability of ecosystems, which provide important benefits such as air and water purification, pollination, and climate regulation.
What is biodiversity?Biodiversity refers to the variety of life in an ecosystem, including the variety of species, genetic diversity within species, and the diversity of ecosystems and landscapes.
Biodiversity is essential for the functioning and stability of ecosystems and provides important ecosystem services such as pollination, soil formation and fertility, climate regulation, and disease control. Biodiversity also helps to maintain resilience in the face of environmental change and provides food, fiber, fuel, and medicinal resources for humans. The loss of biodiversity due to human activities is a major environmental concern, and conservation efforts aim to protect and preserve biodiversity for the benefit of current and future generations.
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reasoning from isolated observations to general principles is called ________?????? ________ means using general principles to make specific conclusions or predictions. ?????
Answer:
inductive reasoning. Reasoning from specific observations to a general conclusion.
Explanation:
Tell me if I'm right.
define electric potential of 1 volt
Answer:
Explanation:
one volt is the potential difference between two points in electric field if one joule of work is done to move a charge of one coulomb from one point to another point against the electric intensity
1v=1w/1q
Fill in the blank - ____________ is the use of electronic instruments to monitor and physiological changes mostly regulated by the autonomic nervous system.
Answer: Biofeedback
Explanation: it mostly helps with body functions such as blood flow, blood pressure, and heart rate.
Biofeedback is the use of electronic instruments to monitor and physiological changes mostly regulated by the autonomic nervous system.
What is autonomic nervous system?
"The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiologic processes."
What is the main function of autonomic nervous system?
"The autonomic nervous system regulates certain body processes, such as blood pressure and the rate of breathing."
What do you mean by biofeedback?
"Biofeedback is a technique you can use to learn to control some of your body's functions, such as the heart rate."
What is the basic principle of biofeedback?
"This technique involves using visual, physical and/or auditory feedback to guide the patient to give their optimal performance."
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Can't use google! Due in 10 minutes! I will mark you the brainliest!
How does identifying ecological hotspots help maintain biodiversity?
Answer:
Look below
Explanation:
A region must meet two strict criteria: must have at least 1,500 vascular plants as endemics, and it must have a high percentage of plant life found nowhere else on the planet. A hotspot is irreriplaceable
What would happen if a plant cell is placed in a solution of salt?
Why do you think it is so hard to get people to change their behavior?
Answer:
bcuz in which habit they have been addicted they can't change it easely after a long try also so it is hard to get people to change their behavior
When listing the levels of organization in organisms from least complex to most complex, which level is just below organs in complexity? cell organism organ system tissue
Answer:
Tissue.
Explanation:
Cells work together to make tissues and tissues work together to make organs. I believe tissues are right under organs in terms of complexity.
The level of organization is defined by the simple to complex arrangement. The tissues are below the organs in the level of complexity. Thus, option d is correct.
What is the level of organization?The arrangement of the most simple to the complex structure in a hierarchical manner is called the level of organization. It makes the population and the community of the ecosystem.
The atom is the most simple level that aggregates to form a molecule that makes a cell. Cells with similar functions make the tissues. The tissues with various fucntions combine to form an organ.
An organ along with different organs makes an organ system. The various organ system with various roles and activities makes the organism. Many organisms make a population that results in a community, ecosystem, and biosphere.
Therefore, option d. the tissues make the organs.
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Which zone on earth is best describes by its constant warm temperatures
Answer:
Tropical Zone
Explanation: Its near the equator with warm air masses with the average temperature in the coldest month is 18 °C. This is warmer than the average temperature of the warmest month in the polar zone.
What are the 5 main steps into the formation of the Solar System??
Answer:
Step 1 of the formation of the solar system. the solar nebula collapses.
Step 2 of the formation of the solar system. rotating protostellar disk.
Step 3 of the formation of the solar system. center of nebula fusion begins, star is born.
Step 4 of the formation of the solar system
Explanation:
After researching the rock they found, Mary and Jim believe it contains large pieces of the mineral limonite. They observed that their rock was yellow in color. And, according to the data they gathered, limonite is also yellow. They plan to conduct an investigation using the scientific method. Part A What is Mary and Jim’s hypothesis?
The definition of a hypothesis is a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation. therefore this means that there hypothesis is that the stone is limonite because limonite is also yellow.
Can anybody give me a pdf or note about the flatworms?
Flatworms
James H. Thorp, D. Christopher Rogers, in Field Guide to Freshwater Invertebrates of North America, 2011
B Reproduction and Life History
Some flatworms, especially those living in temporary aquatic habitats, reproduce only once per year (univoltine), while other species are multivoltine, with the number of generations depending on environmental favorability. Most flatworms reproduce sexually, and almost all species are hermaphroditic. Although gamete exchange is most common, self-fertilization is possible in some species. Eggs are laid singly on a hard substrate, are grouped into clusters (sometimes stalked), or are placed in cocoons. Miniature flatworms emerge from eggs which have been attached to the substrate. These usually develop directly (without intermediate larval stages) into adults and differ only in size and presence of reproductive organs. A few species are ovoviviparous (young brooded inside parent) or have a distinct larval stage. Asexual reproduction occurs seasonally in many taxa and is the only form of reproduction in a few species. This form of reproduction involves differentiation of the adult body into distinct units (zooids) followed by separation into small flatworms via transverse division of the adult body. This process is aided by the remarkable regenerative abilities of flatworms.
Under demanding environmental conditions, flatworms produce resistant eggs able to survive desiccation of the surrounding environment or the animal may enter diapause (a very low metabolic state) and encyst as a whole animal or fragment of the adult.
Sexually reproducing flatworms can live from a few weeks to a few months (not counting periods of encystment), while the life span of asexual species is theoretically indefinite.
Compare substrates and inhibitors.
Explanation:
An enzyme inhibitor is a molecule that binds to an enzyme and decreases its activity. ... Not all molecules that bind to enzymes are inhibitors; enzyme activators bind to enzymes and increase their enzymatic activity, while enzyme substrates bind and are converted to products in the normal catalytic cycle of the enzyme.
Arginine utilizing enzymes in macrophages showed different specificities for various arginine analogues and derivatives as substrates and inhibitors. Isolated arginase was strongly inhibited by L-canavanine(Can) and L-ornithine(Orn) but only slightly by L-homoarginine(Hom) and L-argininamide(ArgNH2). These effects were not or only weakly observed when released urea was measured in long term cell cultures. On the other hand, both L-canavanine and L-argininamide were substrates for arginase in long-term cultures. The known inhibitors of NO synthase were ineffective. The mechanisms of inhibition were different for L-canavanine and L-ornithine, but clear mechanisms could not be identified). NO synthase was studied only in long term cell cultures without purification. Certain N-guanidino (NG)-substituted arginine derivatives caused a marked inhibition while inhibitors of arginase had only slight or no effect. L-homoarginine was also found to be the substrate of NO synthase. The comparison of these effects of arginine analogues and derivatives made possible a computer-aided approximation for the fitting of active centers of these enzymes to their substrates.
A carbon atom has four valence electrons. How do all living things depend on this property and other special chemical properties of the carbon atom?
Answer:
It is for the fact that Carbon need to fill up its shell for order to make it coplete. Hense using Covelant bonds. Carbon therefore can connect to oxygen, hygrogen, and other carbon molecules. Also Carbon can connect in 4 ways to. It also can form 2 main covelant bonds
Explanation:
I am a bio teacher
Carbon is an element with four valence electrons which makes it possible to
form covalent bonds with other elements such as Hydrogen, oxygen etc.
Carbon has four valence electrons and needs an additional four in order to
achieve a stable octet configuration. This makes it react with other
elements . When an element has fewer or no valence electrons in the outer
shell, it becomes less reactive to ensure the stable configuration isn't altered.
This is why carbon is able to pair electrons with other elements through
covalent bonding to ensure that the octet configuration is achieved.
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HELP!
Which step was most likely performed by the researcher during the
purification process?
O A. The protein was separated from lipids.
OB. The protein was stabilized using lipids.
C. The protein was separated from nucleic acids.
D. The protein was separated from nucleic acids.
Answer:
A
Explanation:
Why is it important for molecules to able to travel into and out o your body's cells?
The function of the transport proteins is to maintain the internal environment of the cell's salt, nutritional, and protein balance within a range that ensures the survival of the cell and the organism.
What is importance of a molecule to move across the cell?Biology places a great deal of importance on the passage of substances into and out of cells (for example, nutrients into and poisons out), as without it, no cell and hence no organism could survive for very long.
Moving chemicals throughout the body is essential for living cells. Transporting chemicals into and out of cells is necessary.
Examples include oxygen, carbon dioxide, and dissolved food. Active transport, osmosis, and diffusion are used to accomplish this.
Therefore, transport of a molecule into and out of cell is important to functioning of cell.
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How many meters per hour did marica run?
how many meters per hour did marica run ? 12,600
Explain how a major flooding event could impact more than one sphere. What
spheres would be involved and in what way
Answer:
well... since i know everything, i would say that this is bad because people can drown and we do not want people to die before they can vote.
what is the composition of fatty acid tails of trans fat?
Answer: Like fats, they are typically composed of fatty acid chains attached to a backbone of glycerol. Instead having three fatty acid tails, however, phospholipids generally have just two, and the third carbon of the glycerol backbone is occupied by a modified phosphate group.
Answer:
Like fats, they are typically composed of fatty acid chains attached to a backbone of glycerol. Instead having three fatty acid tails, however, phospholipids generally have just two, and the third carbon of the glycerol backbone is occupied by a modified phosphate group.
Explanation:
6 different between mango and lotus
Answer:
Mango tree: ... They are also grown mostly for the mango fruit production as the mango production achieved Mangifera is their genus name . They have relatively large leaves and can grow up to the height of 40 meter. Rose plant : They are the plants which means they are relatively small and has the weak stem.
Why are most oceanic trenches found in the Pacific Ocean?
Answer:
It's where the subduction zones are.
Explanation:
Subduction zones - when two plates meet and one gives way to the other.
Answer:
Most oceanic trenches found in the Pacific Ocean because it is the largest ocean, therefore it has most most convergent boundaries. Whenever a convergent boundary is formed it creates a trench because the oceanic plates are denser the continental plates so they sink. This is known as subduction.
what happens when soil leaches
Answer:
In agriculture, leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. ... Leaching may also refer to the practice of applying a small amount of excess irrigation where the water has a high salt content to avoid salts from building up in the soil (salinity control).
Explanation:
What is CCI4 molecular shape name
Answer:
tetrahedral is the name of ccl4 molecular shape . may help you(:
Name a pH level that amylase and
alkaline phosphatase share?
Which process occurred when water droplets formed on the grass
Answer:
condensation
Explanation:
because water is collected as droplets on a cold surface when humid air gets in contact with it
Condensation is the process occurred when water droplets formed on the grass because water is collected as droplets on a cold surface when humid air gets in contact with it.
What is condensation?The water droplets forming on inside is condensation.The transformation of airborne water vapor into liquid water is known as the condensation of water. It takes place when water transitions from a gaseous state to a liquid or crystallized state.
When the air is cooled below the dew point, the excess water vapor condenses onto surfaces in the form of water droplets. This is why we may notice water droplets forming on the outside of a cold glass of water on a hot day, or on the inside of a window on a cold day.
At high pressure and low temperature, any gas can condense. As a result, water droplets condense on the interior of a chilly windshield. Water droplets can form inside windows due to a process called condensation.
Therefore, Condensation is the process occurred when water droplets formed on the grass because water is collected as droplets on a cold surface when humid air gets in contact with it.
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Describe ways in which a healthy artery differs from an artery affected by coronary heart disease
Answer:
A healthy artery is wider and has no blockages. The lumen (which is the hole in the centre of the artery), is open and clear. This means there is more blood flow. An artery of a person suffering from coronary heart disease is often blocked, usually by a fatty deposit. This means the blood does not flow as well. (See diagram, in which I would draw two arteries, one with a blockage of fatty deposit, one clear and healthy).
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