I need help with this question
Why does mature soil contain the why does mature contain most humus?
a. Has the least decomposed organic material from trees and vegetation
B The mature soil has the most soil horizons
C The mature soil has the biggest layer of bedrock
D. Has the most decomposed organic material from trees and vegetation
Answer:
D. Has the most decomposed organic material from trees and vegetation
Explanation:
Mature soil has the most decomposed organic material from trees and vegetation. Therefore, option D is correct.
What is matured soil?A soil that has completed all the developmental phases and becomes stable when the addition of organic material becomes equal to the withdrawal of soluble minerals by the plants.
They are formed from rocks through the process of weathering and erosion. These processes take place by the wind, water, living organisms, pressure, change in temperature, and chemical reactions. There are three layers present in the mature soil and that are topsoil, subsoil, and parent rock. These layers are known as horizon.
Thus, mature soil consists of the most decomposed material from trees and vegetation. Therefore, option D is correct.
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The most common organisms with the normal flora of the mouth are various species of what?
Answer:Streptococcus, Granulicatella, Gemella, and Veillonella are amongst the predominant microorganisms of the oral cavity; however, the majority of bacteria are explicit to certain sites.
Explanation:
why George Emil Palade
describe as father of cell biology?
George Emil Palade was a cell biologist who applied electron microscopy to the study of the cell where he observed the ribosomes, where protein synthesis is carried out.
Who was George Emil Palade?He was a Romanian-born, American-naturalized cell biologist who used the electron microscope to study the cell, his contributions include:
Studies on mitochondria, the Golgi apparatus, and other cellular organelles, and on microsomes made up of nucleic acids.The discovery of ribosomes, this being the macromolecules responsible for the synthesis or translation of proteins.Studies on histological structures such as the basement membrane or adhesion complexes in epithelia.Therefore, we can conclude that George E. Palade was especially relevant to cell biology as he applied electron microscopy to the study of the cell where he observed ribosomes and various cell organelles.
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Methods for the Culturing
Answer:
There are several types of bacterial culture methods that are selected based on the agent being cultured and the downstream use.
• Broth cultures.
• Agar plates.
• Agar based dipsticks.
• Stab cultures.
• Culture collections.
•Solid plate culture of thermophilic microorganisms.
• Isolation of pure cultures.
can a woman lactate without being pregnant ?
Answer:
Hormones signal the mammary glands in your body to start producing milk to feed the baby. But it's also possible for women who have never been pregnant — and even men — to lactate
Explanation:
read the answer please
2. Which of the following would best describe the role of enzymes in cells?
a. Controlling the rate of reactions
b. Storing the genetic code
c. Maintaining a constant body temperature
d. Breaking down large molecules into smaller molecules Justify your choice of answer:
Explanation:
The answer is; enzymes speed biochemical reactions by rearranging molecular structure to support the cell function. protein catalysts ..
the answer is D.
A missense mutation results in which of the following?
Answer:
A missense mutation is a mistake in the DNA which results in the wrong amino acid being incorporated into a protein because of change, that single DNA sequence change, results in a different amino acid codon which the ribosome recognizes. Changes in amino acid can be very important in the function of a protein.
Phases of Mitosis
Phase
Event
Prophase
1.
Chromosomes attach to spindle fibers.
2. Metaphase
Anaphase
3.
4.
New nuclear envelope forms.
Answer:
prophase-The chromosomes become viseble
metaphase- chromosomes attach to spindle fibres
Anaphase-The Spindle fibres line up in a centre called equator
telophase-Sprindle fibres reach the poles
A plant has wrinkled seeds. In this species, round seeds are the dominant tralt over wrinkled seeds.
What can you say about this plant?
O If the phenotype Is RR, the genotype is wrinkled seeds
O Plants with RR and Rr genotypes will all have wrinkled seeds
O If the plant has wrinkled seeds, the genotype must be rr
If the plant has wrinkled seeds, It's genotype is Rr
NI
Answer:
the 3rd option rr
Explanation:
if the seeds show a recessive trait, then it can only be when all alleles are recessive (in this case its rr).
the role of a control in an experiment is to
Answer:
Controls allow the experimenter to minimize the effects of factors other than the one being tested. It's how we know an experiment is testing the thing it claims to be testing. This goes beyond science — controls are necessary for any sort of experimental testing, no matter the subject area.
Explanation:
Hope it helped <3
The role of control in an experiment is to minimize the effects of factors.
Scientific control is an experiment in which a subject (or a group of subjects) is not tested for a dependent variable (or variables). The addition of control to an experiment is essential for obtaining the results of the empirical data.
A control variable is a variable that is held constant throughout a study. It is not a study variable, but it is controlled because it has the potential to affect the study results.
It is used for comparisons to confirm the results of an experiment. It is used to guarantee that the measured dependent variable is influenced only by the changed independent variable and not any other variables (controls) in the experiment.
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how did the ocean start to change the second atmosphere into the third atmosphere that we know today? (keep the answer short please)
You blink your eyes. Was work done??
Answer:
yes
Explanation:
Why is biodiversity important in ecology?
Answer:
its the key indicator of the health of an ecosystem
substances that are at their simplest state are called _____?
Which of following has the least ecological tolerance to climate change?
- Small island close to the mainland
- Small island far away from the mainland
- Large island close to the mainland
- Large island far away from the mainland
Given what we know, we can confirm that a small island far away from the mainland is the least tolerant to climate change.
Why is this the case?A small island far away from the mainland is less tolerant of climate change from an ecological viewpoint than the other options listed. This is the case because of the size and location of the lsland. A small faraway island does not have many options for the wildlife to migrate or adapt and is therefore more intensely affected by any changes in climate.
Therefore, we can confirm that a small island far away from the mainland is the least tolerant to climate change.
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Answer: Its B guys :)
Explanation: I got it right on the test!
why living things need to move
Answer:
to stay fit and healthy also to eat drink and sleep because every living things need food water and sleep
Do we still have high tides and low tides during neap tides and spring tides? Yes or No?
Answer:Yes
Explanation:
7 days after a spring tide, the sun and moon are at right angles to each other. ... This produces moderate tides known as neap tides, meaning that high tides are a little lower and low tides are a little higher than average. Neap tides occur during the 1st and 3rd quarter moon, when the moon appears "half full.
Am i correct?
mark brainliest
Answer:
you're right because green and brown would fit in better and they're not resistant to pesticides :)
Explanation:
An air mass forms over the North Pole region describe what you think the temperature and humidity of this air mass will be like?
Answer: hope this helps :)
The motion of air mass motion is usually based upon the air flow in the upper atmosphere. As the jet stream changes intensity and position, it affects the motion and strength of air masses. Where air masses converge, they form boundaries called "fronts".
3-D view of a cold front.
Fronts are identified by change of temperature based upon their motion. With a cold front, a colder air mass is replacing a warmer air mass. A warm front is the opposite affect in that warm air replaces cold air. There is also a stationary front, which, as the name implies, means the boundary between two air masses does not move.
The motion of air masses also affects where a good portion of precipitation occurs. The air of cold air masses is more dense than warmer air masses. Therefore, as these cold air masses move, the dense air undercuts the warmer air masses forcing the warm air up and over the colder air causing it to rise into the atmosphere.
So, fronts just don't appear at the surface of the earth, they have a vertical structure or slope to them as well. Warm fronts typically have a gentle slope so the air rising along
Please help me I need to pass the test so iva. Be able to play soccer
Earth and space
Answer:
d
Explanation:
12. If Mr. Rauch wants to create an African violet with variegated foliage, then what must be true about the plant he chooses to use as the seed parent (female)
To create an African Violet whose leaves have various colors, Mr. Rauch will have to use seed from a female parent whose foliage is also variegated because, in flowers, variegation of foliage is inherited from the female parent.
What is an African Violet?African Violets are a type of plant that is very popular for decorating the house.
They are easy to maintain and bloom at least 10 times in a year. It's scientific name is Genus Saintpaulia.
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How might evidence from an experiment such as this help shape Darwin’s ideas about evolution?
Explanation:
Darwin, is a brilliance ahead of his time.
He has proven evolution by his observations in the field. EXAMPLE/
He started with plants..a control group & experimental plants he grew himself. After that, he has proven, (evolution theory with environmental variances determines how animals adapt to a new environment)... it is not possible to grow a tropical plant in the midwest without warmth, humidity, water etc...
He had proven through his observations that giraffes have long necks so they can reach the higher branches of food while living in arid climates.
While his counterparts disagreed, he had visited these places worldwide 2 study this.
uhmm can anyone help me with this pleaseeee quickly
Answer:
Not Italy, United States,
Probably C or D
Because offspring are more frequent In Africa due to poor quality of life.
A scientist wants to study the effect of vitamin C on colds. He gave 1000 mg of vitamin C per day to 100 people. What would be the best control?
A. Give the control group a pill similar to vitamin C but containing no vitamin C (a placebo)
B. Give the control group 2000 mg of vitamin C per day
C. Give the control group orange juice every day
OD. Give the control group nothing.
O E. Give the control group 1000 mg of another brand of vitamin C per daY
Answer:
D
Explanation:
Give the control group nothing. They are going to have to use their own blood system to fight the cold. The difference in results will be if Vit C produces better results than the nothing group.
If you had a gram of water and a gram of oxygen, which substance would you have more particles of? Why?
The substance that will have more particles is 1 g of oxygen.
Avogadro's hypothesis 1 mole of water = 6.02×10²³ particles 1 mole of oxygen = 6.02×10²³ particlesBut
1 mole of water = 18 g1 mole of oxygen = 16 gTherefore,
18 g of water = 6.02×10²³ particles 16 g of oxygen = 6.02×10²³ particlesHow to determine the particles in 1 g of water18 g of water = 6.02×10²³ particles
Therefore,
1 g of water = (1 × 6.02×10²³) / 18
1 g of water = 3.34×10²² particles
How to determine the particles in 1 g of oxygen
16 g of water = 6.02×10²³ particles
Therefore,
1 g of oxygen = (1 × 6.02×10²³) / 16
1 g of oxygen = 3.76×10²² particles
SUMMARY 1 g of water = 3.34×10²² particles 1 g of oxygen = 3.76×10²² particlesFrom the above, we can conclude that 1 g of oxygen contains more particles than 1 g of water
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Complete the sentence. The ________________ of extra rabbits into a forest ecosystem can affect the population of other herbivores already living there.
- birth rate
- death rate
- emigration
- immigration
The immigration of extra rabbits into a forest ecosystem can affect the population of herbivores living in the forest.
What is immigration?Immigration is the movement of people or animals from external locations into a population.
With new individuals moving into a population, the population size increases with other factors being constant.
With the increase in the population size, competition for resources increases accordingly.
Thus if extra rabbits move into a forest ecosystem, the population of herbivores existing in the ecosystem would be affected because competition for food would increase.
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Answer:
one never trust expert verified or tutor verified there wrong often also its d
Explanation:
the man who posted the question said it was d
Which term is an example of force?
A. energy
B. mass
C. weight
D. Work.
Answer:
c.Weight is an example of force.
What is the term used to describe a collection of axons in the brainstem?
Nucleus
Tract
Ganglion
Nerve
When do neap tides occur?
Explanation:
neap tides occured during the first and third quarter moon