Answer:
Image result for How did dark brown skin evolve from our ancient early ancestors?
Evolution. Due to natural selection, people who lived in areas of intense sunlight developed dark skin colouration to protect against ultraviolet (UV) light, mainly to protect their body from folate depletion. Evolutionary pigmentation of the skin was caused by ultraviolet radiation of the sun.
Explanation:
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describe each step of the water cycle, carbon cycle, and nitrogen cycle
The biogeochemical cycle has to do with the cycle of nutrients and elements in nature.
What is the biogeochemical cycle?The biogeochemical cycle has to do with the cycle of nutrients and elements in nature; they include the water cycle, carbon cycle, and nitrogen cycle.
The water cycle begins with the evaporation of surface water which is then condensed in the cloud and falls as rain.
The carbon cycle involves the combustion of fossil fuels, the calcification of shells of animals as well as the decay of organisms to release gaseous CO2.
The nitrogen cycle involves the nitrogen content of living things that is returned during decay to the earth as well the fixation of nitrogen by bacteria and also nitrification.
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The data show the number of pieces of mail delivered to a single home address each day for three weeks.
4, 0, 2, 6, 1, 0, 3, 4, 0, 2, 4, 1, 5, 2, 3, 1, 1, 2
The data show the number of pieces of mail delivered to a single home address each day for three weeks.
4, 0, 2, 6, 1, 0, 3, 4, 0, 2, 4, 1, 5, 2, 3, 1, 1, 2 Which statement is true about a graph representing the data? Check all that apply.
The number line of a dot plot would start at 1.A dot plot would show 7 points for numbers greater than 2.The intervals on a histogram should be 0 to 2, 3 to 4, and 5 to 6.A histogram would have a maximum of 7 bars.A histogram should not show a bar that includes 0 pieces of mail.A dot plot would show 7 points for numbers greater than 2.What is histogram?
Histrogram is refer to as diagram made up of rectangles whose size is related to a variable's frequency and whose width is equal to the class interval.
Answers:
4.0.2.6.1.0.3.4.0.2.4.1 2.21
10 for 3 days for 4 days 2 for 4 days. 3 for 2 days 4 for 3 days 5 for 1 day 6 for day in a graph.
1. Statement 1 false because It should start at O.
2. Statement 2 true because 7 points for numbers greater than 2 are Greater than 2 3 4 5 6
3. Statement a false because it should be a 2.
4. Statement 4 true because there are 2 numbers. 2.1.2.3456
5. Statement 6 false because it should show 3 bars at o.
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Describe and account for the relationship between the two population growth curves between hares and lynx.
Answer:
The lynx's principal food source is the snowshoe hare. These two species' population cycles are intertwined. When hares are abundant, lynx consume almost nothing else and kill two hares every three days. When hares are sparse, lynx eat mice, voles, squirrels, grouse, ptarmigan, and carrion.
HELP ILL MARK BRAINLIEST !!
Answer:
you were correct its 16 cups
Explanation: good job!
match each hyposthesis for how the moon formed with the statement that best descibes it
Giant Impact Theory: The Moon was formed by a collision between Earth and a planet the size of Mars.
Colliding planetesimal Hypothesis: Planetesimals collided and merged to form the Moon.
Capture Hypothesis: As it passed past, Earth's gravity locked the Moon into orbit.
Accretion Hypothesis: The Moon was produced from the same material cloud that created the Earth.
According to scientists, the following are the recognized theories of lunar formation:
What is giant impact theory?According to this idea, a Mars-sized object named Theia collided with Earth, leaving a large portion of the planet to float in space, eventually forming the Moon. This is the most widely accepted idea of all since the Moon is moving away from Earth and its rocks are fairly similar to those of Earth.
1: According to this idea, the Moon was born somewhere else and was drawn into Earth's orbit by its gravity as it passed by.
2. Capture Hypothesis: According to this idea, the Moon and Earth arose from the same cloud of material at the same time.
3. Accretion Hypothesis: According to this idea, a vast number of small rocky objects known as planetesimals crashed and merged over a long period of time.
4. Colliding planetesimal Hypothesis: According to this idea, the Moon was formed by a huge number of small rocky objects known as planetesimals colliding and combining over a long period of time.
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(10.03 MC)
What is a similarity between a plant's response to light and to gravity?
Answer:
Plants respond directly to Earth's gravitational attraction, and also to light. Stems grow upward, or away from the center of Earth, and towards light. Roots grow downward, or towards the center of Earth, and away from light. These responses to external stimuli are called tropisms
Which of the
following is the major drawback of wind energy?
•Wind machines release harmful toxins.
• Wind is a nonrenewable energy source.
•Wind machines are harmful to the environment.
•Wind machines only work when wind is blowing.
Which component of Earth’s atmosphere is decreased due to photosynthesis?
Bioswales A) Traveling with more than one person in a single vehicle
Bioretention B) Natural channels designed to collect runoff and remove debris and pollution
Compost C) Collecting water into natural buffer areas of vegetation or grass
Carpool D) Organic material that can be added to soil to help plants grow
1-c, 2-b, 3-d, 4-a. is the correct sequence of this match the column answer.
What do you mean by carpool?Carpooling is the practice of sharing car rides so that more than one person can travel in the same vehicle and avoids any need for others to drive themselves to a destination. Carpooling decreases each person's travel costs, such as gasoline, tolls, and the stress of driving, by having multiple people use one vehicle.
Bioswales- Collecting water into natural buffer areas of vegetation or grass
Bioretention - Natural channels designed to collect runoff and remove debris and pollution.
Compost - Organic material that can be added to soil to help plants grow.
Carpool- Traveling with more than one person in a single vehicle.
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what occurs to the sugar levels within the leaves at night?
B)Is gold heavier than silver?
C)Do apples taste better than oranges
Answer:
B): Gold is in fact heavier than silver. Smaller gold objects will be heavier than silver objects even if they're both the same size.
C): I cannot answer this question because it would be an opinion. Both are good in nutritional value.
Explanation:
how are chimpanzees and sunflowers similar?
(im asking this cause i cant figure it out and im super confused and this is for my science class)
Answer:
They are similar because they are both related to each other.
Explanation:
Explain why T cells are more likely to develop into T cells than T cells
Answer:
plssssssszz I beg u
Explanation:
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cellular respiration release co2 and photosynthesis absorbs co2 these two reactions are part of which bio geochemical cycle
Answer:
On our dynamic planet, carbon is able to move from one of these realms to another as a part of the carbon cycle. Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2).
Before using any chemical in the lab, why should one first read the Material Safety Data Sheet (MSDS)?
The MSDS provides information on safe handling of the chemical.
The MSDS explains where the chemical can be purchased.
The MSDS provides the chemical formula for the substance.
The MSDS describes how the chemical will react with other substances.
You should read the Material Safety Data Sheet (MSDS) first because MSDS provides information on the safe handling of the chemical.first alternative.
What is on the material safety data sheet?The MSDS lists the hazardous ingredients of a product, its physical and chemical characteristics (e.g. flammability, explosive properties), its effect on human health.
With this information, we can conclude that you should read the Material Safety Data Sheet (MSDS) first because MSDS provides information on the safe handling of the chemical.
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What are the two types of quantities scientists consider when examining something?
Answer:
The two types of quantities scientists consider when examining is Scalars and Vectors
Explain why the development of the seed was an important event in the evolution of
vascular plants.
The development of the seed was an important event in the evolution of vascular plants because it allowed plants to disperse their offspring far away.
What is plant adaptation?Plant adaptation refers to the different evolutionary features that emerged in the plant kingdom that allow plants to survive and reproduce.
Seeds are a fundamental evolutionary adaptive feature that enabled vascular plants to disperse their genes over longer distances.
In conclusion, the development of the seed was an important event in the evolution of vascular plants because it allowed plants to disperse their offspring far away.
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Drag each tile to the correct box
Amange the organisms according to their positions in the food web, starting with the autotraphs.
according to the studies of Mendel if a recessive gene and a rose is white when cross with a rose carrying the dominant gene red which of the following predictions is correct?
The crossed rose will be pink
The crossed rose will be white
it is impossible to make a prediction according to Mendels studies
The crossed rose will be red
Answer:
the crossed rose will be red
Explanation:
the red gene is the dominant gene and will be inherited
Genetic recombination, production of more offspring than can survive, and struggling with the challenges of the environment are all concepts associated with.
The concepts of genetic recombination, the production of more offspring, and surviving the challenges of the environment are associated with natural selection.
Natural selection and evolutionNatural selection describes the adaptation and modification of populations of living things.
Members of a population are inherently varied, which means they differ in certain respects. Because of these differences, some individuals can be better suited for their surroundings, which is very important in enhancing the chances of surviving and increasing the chances of reproducing as well, thus passing on their adaptive features to their progeny. These beneficial features grow increasingly prevalent in the population over time.
The differences in traits can be explained by changes in the structure of the molecules that make up genes (DNA) are known as mutations. Mutations can occur at random (for example, when replicating cells make a mistake while duplicating DNA) or as a result of exposure to toxic substances or radiation in the environment.
Mutations can be damaging, neutral, or even beneficial, leading to the development of a new, beneficial characteristic. Mutations can be handed on to children when they arise in germ cells.
These processes are all important for the evolution of species.
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Charles Darwin’s findings were pivotal to the formation of the theory of evolution. He noted that the Galapagos Islands, which are located about 1,000 kilometers away from South America, were made up of different types of finches. These species were all believed to have evolved from a species on the mainland, but they developed different adaptations to survive in their environment. Based on this information and the image, answer the following questions.
Answer:
What is the Galapagos Islands in Ecuador the site of Darwin's note on?
Darwin first came to the Galápagos in 1835, on a ship called the HMS Beagle. His observations of wildlife on the island inspired his theory of evolution by natural selection
When fertilization occurs, one half of the dna comes from the ____ and one half from the ______
Answer:
mother.....father
Explanation:
mother.....father
Which of the following is a negative consequence of the application of scientific knowledge? a. industrial pollution b. increased life expectancy c. technological developments d. new energy sources Please select the best answer from the choices provided O A Ов C OD?
Industrial pollution is a negative consequence of the application of scientific knowledge. Thus, the correct option is A.
Why industrial pollution has been increased?Increasing air and water pollution, as well as increased consumption of fossil fuels, occurred from the use of chemicals and fuel in manufacturing resulted in pollution. Acid rain has been increased which is a phenomena that occurs when pollutants are discharged into the sky and subsequently fall back to earth as precipitation as a result of coal combustion.
Science and technology advancements have resulted in significant pollution and degradation of the human environment. Pollution from industries, factories, and locomotives pollutes the air, causing acid rain, global warming, and ozone layer depletion.
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which process involve the production if identical daughter cells
Answer:
[tex]\huge\boxed{\sf Mitosis}[/tex]
Explanation:
Mitosis:The process in which a cell splits into two identical daughter cells is called Mitosis.Each daughter cells have the same number of chromosomes as the parent cell.There are 4 main phases in mitosis.ProphaseMetaphaseAnaphaseTelophase[tex]\rule[225]{225}{2}[/tex]
Explain five ways HIV can change your life
Answer:
It can change the way your peers and people view you as an individual
Effect the way you view yourself
Can cause a broken relationship
thats it
Explanation:
When cells are dividing it is important to understand that they have to move chromosomes equally to both new cells based on this illustration describe what is a chromosome made of
Answer:
A chromosome is made out of DNA and proteins.
Explanation:
We can see the labels on the image, with the DNA and proteins inside the chromosomes.
this is a simple diagram of a food chain:
producers --> herbivores --> carnivores --> top carnivores
if all the carnivores die out, why does the number of producers decrease?
i'm not sure but what im thinking is, well if carnivores die, then not many herbivores will die, therefore there isn't that natural soil fertilizer due to the dead bodies.
Explanation:
By all the carnivores, I assume it means regular and top carnivores. This will let the herbivores live longer which means they eat more food, food being producers causing producer numbers to fall drastically
Which of these nutrients can be found in all organic compounds?
ion
Answer: Therefore, the organic nutrients are carbohydrates, lipids, proteins and vitamins. These nutrients are important for energy. Carbon is the element found in all organic compounds.
deserts savannas and taigas are all examples of what biome.
Answer:
Terrestrial Biome Examples. Terrestrial biomes include tropical rainforests, temperate forests, grasslands, deserts, tundra, taiga, savanna and chaparral.
Explanation:
Answer:Terrestrial Biome
Explanation:im just smart like that you feel me
you transcribed dna to make
Answer: mRNA also known as messenger RNA
Explanation: