Answer:
Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible. Coal is black or brownish-black, and has a composition that (including inherent moisture) consists of more than 50 percent by weight and more than 70 percent by volume of carbonaceous material.
Explanation:
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I am just a teen who needs some help with homework. :)
This is my question:
What is the rarest eye colour in the world? Please help, it's due today.
Answer:
Green eyes
Explanation:
The production of melanin in the iris is what influences eye color. More melanin produces a darker coloring, while less makes for lighter eyes. Green eyes are the rarest, but there exist anecdotal reports that gray eyes are even rarer.
The rarest eye color in the world is green, only 2% of the population in the world have green eyes. To find out more about the list.....
1. Green eyesOnly 2% of people in the world are believed to have this eye color. It is most easily found in northern and Southern Europe and Western Asia.
2. Amber eyesThey are reddish-brown, with a golden and coppery undertone. Among the clear and beautiful eyes in the world, and according to the survey, the most iris, all eyes and beautiful in the world are according to the study, all eyes are rare and specific.
3. Red or violet eyeIt is generated by the body thanks to some genetic changes. The most common is albinism, a disease that lowers melanin levels. Because of this, the hair and eyes can be distinguished.
With this information, we can conclude that there are several eye colors, but the most rare is the color green.
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5. In a tundra ecosystem, the carrying capacity for arctic hares is about 400 individuals. Which of these events is MOST likely to reduce the carrying capacity for arctic hares in the ecosystem by at least 25 percent?
(A) a severe storm that kills about 100 adult and young arctic hares
(B) a 25 percent decrease in the populations of foxes, wolves, or other predators of arctic hares
(C) the arrival in the ecosystem of a species that competes with the arctic hare for its food
(D) a temporary increase in the arctic hare population to more than 425 individuals
(E) a mutation that introduces a new fur color to the arctic hare population
A temporary increase in the arctic hare population to more than 425
individuals.
Hares are among the primary consumers as they are herbivores while foxes
are secondary consumers which feeds on the hares.Foxes will hunt the
hares for food which will drastically reduce their population
Increasing their population by 425 individuals with the hares having a
population of 400 will surely decrease their carrying capacity in the tundra
ecosystem.
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A thick, brownish haze that forms when gases in the air react with sunlight
Help Me Please!!! ASAP
Name the organelle that is found in plant cells where photosynthesis takes place.
Identify where the light dependent and light independent reactions occur in this organelle. (Make sure to label which one is each)
Answer using at least 2 complete sentences.
Answer:
Chloroplasts.
Light-dependent reactions occur in the thylakoid membranes. The light-independent reactions occur in the stroma of the chloroplasts.
Hope that helps
if a man with type ab blood marries a woman with type o blood, what blood types would you expect in their children
Answer: the child could be A or B blood type
What supplies energy used to synthesize carbohydrates during the Calvin cycle?
Discuss the concept of inserting a gene from marine algae into food crops. If researchers are successful in this endeavor, salt water is then an option for food crop irrigation. Discuss possible pros and cons of this idea. This response should be a minimum of 3 paragraphs to discuss all parts of the discussion question. Each paragraph should be a minimum of 5-7 well developed sentences.
Which correctly matches the strand of DNA with his complementary strand of RNA
Answer:
I think it's C. hope that helps
What causes
the wind
and ocean
currents?
Liked my hardwork and make it brainliest
Explanation:
Ocean currents can be caused by wind,density differences in water masses caused by temperature and salinity variations,gravity,and events such as earthquakes and storms...Surface currents in the ocean are driven by global wind systems that are fueled by energy from the sun.
Which number label represents cellular respiration occurs and ATP is produced? 1 2 3 6
Structure 3 in the diagram represents where cellular respiration occurs and
ATP is produced.
The structure is known as the mitochondrion and it has an oval shape in
which series of reactions takes place to produce energy needed by the cells
of organisms.
The mitochondrion is regarded as the power house of the cell because
cellular respiration takes place which produces ATP. The ATP formed is the
usable form of energy by cells to preform their daily activities and for
optimal functioning.
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Answer:
No 3 The mitocondrion
Explanation:
This model of the cell cycle includes two arrows that each represent a process in the cycle.
What do the two arrows represent?
Answer:
the order in which it is preformed.. sorry if in wrong
why is the cell membrane so important to a cell
A: the membrane is responsible for producing proteins
B: the membrane regulates the movement of molecules in and out of the cell
C: the membrane coordinates all of the cell’s activities
Answer:
B
Explanation:
The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell. ... And those proteins which stick outside of the plasma membrane will allow for one cell to interact with another cell. The cell membrane also provides some structural support for a cell.
Answer:
B
Explanation:
The cell membrane provide protection for the cell.
The process by which an organism’s internal environment is kept stable in spite of changes in the external environment is called?
24. What energy transformation occurs
during the combustion of coal in a
power plant?
A Electromagnetic energy is
transformed to thermal energy.
B Nuclear energy is transformed to
electromagnetic energy.
C Chemical energy is transformed to
thermal energy
D Chemical energy is transformed to
noclear energy
Answer:
c
Explanation:
it's not really a chemical per se but c is close enuff
Help please help, anybody please
If you placed the celery into a bottle of colored water that was 35% sugar, would the colored water be seen in the celery? Why or why not?
Answer:
yes,The small "vessels" in the celery stalks carry the water and color to the leaves, like the way blood travels through your body.
Explanation:
The first step in sensation for some sensory systems is the __________, which modify incoming stimuli. Sensory receptors accessory structures absolute thresholds thermoreceptors.
During sensation, the first step for some sensory systems is the accessory structures, which are saddled with the responsibility of modifying an incoming stimuli.
A sensory system refers to components of the central nervous system (CNS) which comprises of the brain, neural tissues (pathways) and sensory neurons that are responsible for sensory functions, perception and processing of sensory information such as light, sound, heat, etc.
Basically, the five (5) main sense organs in the sensory system include the following:
SkinTongueEarsNoseEyesThe accessory structures is typically the first step the first step for some sensory systems because they are saddled with the responsibility of modifying an incoming stimuli.
Read more on accessory structures here: https://brainly.com/question/21151620
Answer:
Accessory Structures.
Explanation:
thylacosmilus is a marsupial and smilodon is a mammal
Answer:
whats the question?
rita has two small containers one holding liquid and one holding a gas rita transfers the substances to two larger containers compare the behaviors in the atoms in the liquid and in the gas once they are moved to larger containers
Answer:The behavior of the both liquid and gas will be different in some aspect and same in the other, lets see how:
Explanation:
As we have studies that liquids donot have a specific shape but do have a specific volume. So when the liquid will be transferred from small to large container, it will adapt the shape of new container but its volume will stay same as it was in old container.
On the other hand, about gases, we know that they donot have specific shapes and the volume is also not definite and depends on the shape of container. Therefore, the gas atoms will freely move in the container and the volume will be changes in large container.
how do an enzyme and substrate to one another? what is the lock and key model of enzyme function?
Explain how ADH is involved in the regulation of water in the body
Answer:
Antidiuretic hormone binds to receptors on cells in the collecting ducts of the kidney promotes reabsorption of water back into circulation, These channels transport solute-free water through tubular cells and back into blood, leading to a decrease in plasma osmolarity and an increase osmolarity of urine.
What happens during photosynthesis?
a. Autotrophs consume sugars
b. Autotrophs produce sugars
c. Heterotrophs produce ATP.
d. Heterotrophs consume ATP.
Answer:
Answer is option a. Autotrophs consume sugars
Explanation:
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which animal is the closest living relative to a t-rex?
which animal is the closest living relative to a t-rex?
Answer:-Chickens
Explanation:-A small mass of T-Rex DNA was discovered, which closely resembles the DNA of modern chickens, further supporting the fact that chickens evolved from dinosaurs.
HELP FOR MIDTERM STUDY GUIDE
During photosynthesis, what best describes the role of the compound with the chemical formula C6H12O6?
a. product that is not useful because of its low-energy chemical bonds
b. a product that is useful because of its high-energy chemical bonds
c. a reactant that is useful because of its high-energy chemical bonds
d. either a product or a reactant, depending on whether the cell needs to store energy or
release energy
En la naturaleza existen más de 4000 minerales diferentes conocidos conocidos
La declaración 'en la naturaleza existen más de 4000 minerales diferentes conocidos' es VERDADERA. Estos elementos pueden ser diferenciados por sus propiedades.
Un mineral es un material inorgánico que se encuentra en la naturaleza, el cual posee una estructura atómica específica, como así también una composición particular.
El estudio de la propiedades físicas y químicas permiten diferenciar los diferetes tipos de minerales que se encuentran en la naturaleza.
Los minerales pueden encontrarse en su estado puro (por ejemplo, oro, plata, cobre) o bien estar combinados con otros materiales para formar diferentes elementos.
Por ejemplo, el cuarzo está formado por la unión del silicio con oxígeno.
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which organ system removes carbon dioxide from the bloodstream?
Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood.
trait approaches to leadership propose that leadership ability arises from:
Trait approaches to leadership propose that leadership ability arises from distinctive personal characteristics. These personality traits shape personality.
Personality refers to the singular and unique patterns of thoughts, emotions and behaviors that exhibit a person.
The trait approaches represent different methodologies to analyze the personality of a person (for example, his/her leadership skills).
These approaches (trait approaches) put major emphasis on the traits of a person that can be considered markers of personality.
Learn more about personality traits here:
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Can someone plz help Me? :(
Answer:
C
Explanation:
I think it's c, but I might be wrong
retroviruses - Examples of RNA viruses are Cvid-19 or the virus that causes __
Answer:
I think death but im not sureExplanation:
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how long can prime rib stay in fridge before cooking
While it's best the next day, leftover prime rib is good for between five and seven days in the fridge or up to six months in the freezer.