Which theory of the spread of human beings is supported most by modern
evidence?
A. Ice Cap theory
B. Multi-regional theory
c. Out of Africa theory
Don’t do it for the points please
Answer:
multi-regional theory
Explanation:
jayfeaher friend me
Why is absolute dating more accurate than relative dating?
Answer:
Absolute dating is a technique that uses radioactive minerals present in rocks and fossils while relative dating compare the sample in terms of age difference. However, absolute dating is more accurate because it uses half-life of an element and provides dates in years.
Which of the following is NOT one of the four main layers of Earth's atmosphere?
A. Troposphere
B. Thermosphere
C. Mesosphere
D. Exosphere
What is the MOST recent evidence supporting plate tectonics?
A) GPS monitoring of plate speeds and movements
B) the WWI discovery of paleomagnetic reversals
C) the 1963 mapping of the tectonic plate boundaries
D)C-14 dating of marine fossils found in the himalayas
A.) GPS monitoring of plate speeds and movements.
I know this is correct because it is constantly paying attention to what is going on with the tectonic plate, monitoring their movement every day, making it the most recent.
Hope this helps and have a nice day.
-R3TR0 Z3R0
This specialized cell controls gas exchange and water loss in a plant. It is found on the under-side of leaves. This structure is called a — Question 15 options: chlorophyll cell chloroplast cell stomata; guard cell
Answer:
stomata
Explanation:
i think the guard cells do control gas exchange and water loss..but these cells are found in the stomata...in the under side of the leaf
Answer:
Stomata
Explanation:
Stomata are tiny openings or pores in plant tissue that allow for gas exchange. Stomata are typically found in plant leaves but can also be found in some stems.
Which of the following is not an organ?
Skin
Lungs
Mesophyll
רוסו
Liver
Eyes
D) Circulatory system is not an organ. It refers to a system composed of organs (such as the heart, blood vessels, and blood) that work together to transport substances throughout the body. So, option D is the right choice.
The circulatory system is a complex network of blood vessels, the heart, and blood. It is responsible for transporting oxygen, nutrients, hormones, and waste products throughout the body.
The heart (option A) is an organ that pumps blood and helps circulate it throughout the body.The brain (option B) is an organ that controls various bodily functions, processes information, and regulates the nervous system.The stomach (option C) is an organ involved in the digestion of food.The circulatory system (option D) is not an organ itself but rather a system composed of organs, including the heart and blood vessels, that work together to transport substances.The kidneys (option E) are organs responsible for filtering waste products from the blood and producing urine.Therefore, among the given options, D) Circulatory system is the correct answer as it does not represent an individual organ but a system comprising multiple organs.
For more such question on Circulatory system
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The complete question may be like:
Which of the following is not an organ?
A) Heart
B) Brain
C) Stomach
D) Circulatory system
E) Kidneys
What % of a kilogram is 454 g
Answer:
45.4%
Explanation:
454g is 0.454kg
1000g in a kg
454/1000 = 45.4%
1d.p 45%
• I had an experience with... It made me think about...
hello pls give me brainliest
Write "A" next to words that can describe abiotic factors. Write "B"next to words that can describe biotic factors.
Answer:
Wind- A
Sunlight- A
Deer- B
Soil- A
Sunflower- B
Water- A
Fungus- B
Snow- A
Eagle- B
Temperature- A
Explanation:
In an ecosystem and biology as a subject, environmental factors are either biotic or abiotic. BIOTIC FACTORS are those factors that involves living organisms i.e. factors that have life in them. For example, the biotic factors denoted as 'B' in this question are deer, sunflower, fungus, eagle which are all under plant, animal or microbes category.
On the other hand, ABIOTIC FACTORS are factors that involve non-living or inanimate objects i.e. factors that have no life in them. For example, the abiotic factors denoted as 'A' in this question are wind, sunlight, soil, water, snow, temperature etc.
Answer:
wind- A
sunlight- A
deer- B
soil- A
sunflower- B
Water- A
fungus- B
snow- A
Eagle- B
temperature- A
Explanation:
Oxygen is carried through the blood by the protein hemoglobin. It is said in the article that a mutation of this protein known as
is the result of oxygen poor blood, which appears blue in veins.
A)Hemotosin
B)Methemeglobin
C)Hemolethoglobin
D)Blood Platelets
Answer:
The correct answer is - B) Methemeglobin.
Explanation:
Methemeglobin is a blood disorder due to the mutation in the hemoglobin which is known as the result of oxygen-less blood. In this disorder, the tissue did not get enough oxygen and appeared to be purple, or blue.
In this mutated form of hemoglobin iron atoms present in ferric instead of the ferrous state and therefore not able to bind with oxygen. It appears blue in veins and tissues look blue or purple.
Granite forms when liquid magma slowly cools within the Earth's crust. Basalt can form when lava cools on Earth's surface. What do granite and basalt have in common? *
Can you please help with this?
Answer:
well in some cases granite is not in fact allowed to from bacause many popele said no.
Explanation:
you see here i have no idea waht this is because i m not in this class but
Answer:
They are both types of igneous rocks
Explanation:
2. What is the difference between a scientific theory and scientific law?
A scientific theory attempts to explain why natural events occur while scientific law are
statements that describe natural events.
A scientific law attempts to explain why natural events occur while scientific theory are
statements that describe natural events
Answer:
Like theories, scientific laws describe phenomena that the scientific community has found to be provably true. Generally, laws describe what will happen in a given situation as demonstrable by a mathematical equation, whereas theories describe how the phenomenon happens
Explanation:
Plzzz Help!!! Giving everything!!
Water has a unique property. Like most liquids, it becomes denser as it cools, but at 4°C it reaches maximum density. Solid ice is less dense than liquid water, which is why ice floats. How would this property protect aquatic life in a lake?
A. The lake would not freeze solid.
B. Predators would be kept out of the lake.
C. Dissolved oxygen would remain in the lake.
D. Heat would be conducted away from the lake.
Answer:
A
Explanation:
It's A
Due to this unique property of water, the lake would not freeze solid.
What is anomalous expansion of water?The anomalous expansion of water is an abnormal property of water in which it expands instead of contracting when the temperature goes from 4 degree Celsius to 0 degree Celsius and it becomes less dense.
Due to this property of water, the aquatic life is protected deep in water in colder region so we can conclude that due to this unique property of water, the lake would not freeze solid.
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Purines and primidens are the two types of nitrogens.basis in nuclic acid,breifly explain both of them
Answer:
Pyrimidines
Uracil = 2,4-dioxy pyrimidine
Thymine = 2,4-dioxy-5-methyl pyrimidine
Cytosine = 2-oxy-4-amino pyrimidine
Orotic acid = 2,4-dioxy-6-carboxy pyrimidine
Polynucleotides
Nucleotides are joined together by 3'-5' phosphodiester bonds to form polynucleotides. Polymerization of ribonucleotides will produce an RNA while polymerization of deoxyribonucleotides leads to DNA.
https://library.med.utah.edu/NetBiochem/pupyr/pupy15.gif
Explanation:
How are photosynthesis and cellular respiration related?
A. The products of photosynthesis are the reactants of cellular
respiration
B. Cellular respiration is the process animals use to produce glucose,
while photosynthesis is the process plants use to produce
glucose.
C. Photosynthesis produces water molecules, while cellular
respiration splits water molecules apart.
D. Cellular respiration provides the energy for photosynthesis.
Answer:
I would say your answer for this question would be Option D: Cellular respiration provides the energy for photosynthesis.
Explanation:
Photosynthesis is the process by which plants use the energy from sunlight, carbon dioxide, and water and convert them into food, and Cellular resipration is the process by which organisms use oxygen to break down glucose and convert it to usable energy. That means that Option B can be crossed out, along with Option C. In Option A, the products of photosynthesis are not the reactants of cellular respiration, but rather the user of the energy that Cellular respiration provides. That means you can cross out Option A, and now you are left with Option D as your answer.
Answer:
A. The products of photosynthesis are the reactans of cellular respiration
Explanation:
took the test
You take a job selling diet marshmallows at a company where the average employee earns $70,000 a year. Later you discover the company has a president and 30 salespeople, but each sales person eats $20,000 a year. How can the "average" be so high?
To find the average they also take into account the salary of the president, who probably makes a lot more than $20,000.
Scientists can learn all of the following by studying fossils EXCEPT:
Question 2 options:
How life forms have changed over time
How the environment has changed over time
How the surrounding rock layers have changed over time
How the Erath's surface has changed over time
Answer: How the surrounding rock layers have changed over time
Explanation:
I’m taking a minion quiz in science class and I submitted it and we’ll that’s the correct answer
The changes in surrounding rock layers over time cannot be studied by fossils. So the correct option is C.
What are the uses of fossils?We can learn a lot about the Earth's history of life thanks to fossils. They can help us understand the origins of life and humanity, the evolution of the planet and its environment across time, and the once-connected nature of the continents that are now widely separated.
Important evidence for evolutionary and the environmental adaptability of plants and animals may be found in fossils. Fossil evidence shows how organisms developed and how a "tree of life" may be used to illustrate this process, demonstrating the interconnectedness of all species.
Rocks can also be dated using fossils. Geologists may use fossils to study geological history because different types of fossils appear in rocks of various ages as a result of evolution. Fossils are one of the most crucial instruments for age correlation in geology.
Ammonites, for instance, are great reference fossils for stratigraphy because they may be used to compare the relative ages of two or more strata, or layers of rock, that are located in various locations across the same nation or elsewhere in the world.
Therefore, the correct option is C.
Read more about fossils, here
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of the following measurements, the one that would be incomplete without giving a direction
is
A. time
B. force
C. temperature
D. length
(Sorry Input it under biology i didnt know what else to put)
Reducing the use of resources is one way to practice __________.
One of these words are used for the blank
conservation
fossil fuels
nonrenewable resources pollution recycling
resources
renewable resources*
Answer:
recycling
Explanation:
To be used again
Which three of the following options are taken in (absorbed, taken in, and taken up)
by plants when conducting photosynthesis? *
A. Sunlight
B. Glucose/Sugar (C6H1202)
C. Carbon Dioxide (CO2)
D. Oxygen (02)
E. Water (H20)
Answer:
A, C, E
Explanation:
The granite boulders in Rocky Mountain National Park are a favored place among talented climbers who specialize in the art of bouldering, or climbing harder (but shorter) routes without tying into a rope. Climbers have taken to (illegally) stashing foam crash pads underneath the boulders but marmots and other rodents chew up the pads and the litter is spread by the wind. Why would the park be overused in this manner
Answer:
Follows are the solution to this question:
Explanation:
The National Park for Rocky Mountain is among the nation's best popular national parks. Rich fauna wandering the valley and also some derisive recreational sports on the planet including its majestic peaks throughout every way is no surprise that each year upwards of 3.5 million people flocks to this park. Throughout this issue, the park would be overplayed as described, since the marginal private expense of using the parks is less than those of using the park at a marginal cost.
Where does the external respiration take place in pets?
Answer:
In mammals (like cat and dog pets), external respiration takes place by the exchange of gases in the alveoli of the lungs
Explanation:
External respiration refers to the process of exchange of gases, i.e., oxygen (O2) and carbon dioxide (CO2), with the environment. In mammals like humans, dogs and cats, external respiration occurs in the millions of alveoli in the lungs and the capillaries that are located in the walls of the alveoli. This process (gas exchange) happens due to simple diffusion. The O2 is taken from the environment (by inhalation) and travels from the alveoli to the blood in the capillaries that surround the alveoli, while and CO2 diffuses from the blood capillaries to the alveoli (where this gas is exhaled).
what is the purpose of the article The Amazing World Inside a Human Cell
What does the Smooth E.R. Do
Answer:
it's important function is to manufacturer Lipids
Answer:
The smooth E.R mainly makes the lpids that make up the cell membrane.
Explanation:
This refers to information gathered by observation or experimentation
Explanation:
info gathered b4 and after an experiment is used to confirm or disprove a hypothesis ( educated guess).
Both heterotrophs and autotrophs do not need metabolic processes to
convert energy into forms that they can use to carry on life processes.
True O False
25 points
The pH of coffee is close to 5 and that of pure water is 7. This means that
Answer:
coffee is more acidic than water?
Explanation:
i am not sure if this is what you are asking but thats what my first thought to answer was
A DNA nucleotide is composed of
Answer:
The answer is Cytoplasm
Explanation:
Massive stars end their lives in a huge explosion called what?
Answer:
The death of a star the results in an explosion is called a Super Nova.
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What is another term for the responding variable?
O primary variable
dependent variable
independent variable
uncontrolled variable
The answer is DEPENDENT VARIABLE
-edgy 2021
Answer:
B. Dependent variable.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
Hence, an experiment is used by scientists or psychologists to illustrate how a change in variable affects behavior.
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
In an experiment, there are two (2) main types of variables and these are;
I. Independent variable: this is the variable that is being manipulated or alters and as such it is the cause of a behavior. This variable stands alone.
II. Dependent variable: this variable is the direct effect of the actions of the researcher in an experiment.
Basically, the dependent variable is the variable that is being measured and tested by an experimentalist.
Hence, dependent variable is another term for the responding variable because it responds to an action.
