Answer:
0.25g
Explanation:
density= mass/volume
=3÷12
=0.25
Is the classification system of domains and kingdoms the only system that scientists have ever used to classify organisms?
No, the classification system of domains and kingdoms is not the only system that scientists have used to classify organisms.
What is a classification process?The classification of living organisms has been a continuous process since the time of Aristotle, and scientists have used various systems over time to classify organisms.
Prior to the current system, scientists used a five-kingdom classification system that classified organisms into Monera, Protista, Fungi, Plantae, and Animalia. However, advances in molecular biology and genetics led to the realization that this system did not accurately reflect the evolutionary relationships among organisms.
The current classification system, which is based on three domains - Archaea, Bacteria, and Eukarya - was proposed in the late 1970s and early 1980s by Carl Woese and his colleagues.
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What are some important functions cells perform in the human body?
Answer:
1: Movement (muscle cells) 2: Conductivity (nerve cells) 3: Metabolic absorption (kidney and intestinal cells) 4: Secretion (mucous gland cells) 5: Excretion (all cells) 6: Respiration (all cells) 7: Reproduction (all cells) MedicTests.com.
Explanation:
Need help from a pro. This is due at the end of today ( 12/3/20 )
Answer:
answerchoices?
Explanation:
Fill in the Blank Complete the following sentence. If experiments support the existence of a new phenomenon, then the original theory may be
____________
PLZ HELP! ILL GIVE BRAINLIEST I REALLY NEED HELP
plz....
What can scientists learn about fossils using techniques of absolute age-dating?
A. estimated ages of fossils in rock layers.
B. precise ages of fossils in rock layers.
C. causes of fossil disappearances in rock layers.
D. structural similarities to other fossils in rock layers.
Answer:
B
Explanation:
The temperature of the water in Glass A is 90°C. The temperature of the water in Glass B is 30°C. When each is poured into a container of water which is 60°C, which of the following statements is most likely to occur?
A. Water from Glass A will sink to the bottom while water from Glass B will sink.
B. Water from Glass A will rise to the top while water from Glass B will sink.
C. Water from Glass A will sink to the bottom while water from Glass B will rise.
D. Water from Glass B will rise to the top while water from Glass A will rise.
HURRY I WILL GIVE BRAINLEST JUST PLS HURRY IM ON MY FINALS EXAM!!!!!!
Which scientist most inspired Darwin to pursue his studies of evolution?
A. Linnaeus, who first proposed that humans and primates are similar
B. Malthus, who thought that populations could outgrow their food sources
C. Linnaeus, who thought that populations could outgrow their food sources
D. Malthus, who first proposed that humans and primates are similar
Answer:
B. Malthus, who thought that populations could outgrow their food sources
Explanation:
You are looking out over the ocean and see this:
What can you know about the tide?
When we are looking out over the ocean and see this: We can know about the tide that it must be neap tides. Thus, the correct option is A.
What are neap tides?A neap tide occurs seven days after a spring tide. It refers to a period of moderate tides when the sun and the moon are at right angles to each other in space. A spring tide is a common historical term which has nothing to do with that of the season of spring.
A tide just after the first or third quarters of the Moon when there is least difference between the high and low tides is called as Neap tide. During this time, the Moon and the Sun are at right angles to that of the earth. As a result of this, the high tides are not too high, and the low tides are not too low.
Therefore, the correct option is A.
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help please fill in the blank
The mass of an object is 45 kilograms. Its weight on Earth is(blank)newtons, and its weight on the Moon is (blank) newtons
Gravitational force is 9.8 m/s2 on Earth and 1.6 m/s2 on the Moon.
Answer:
441N and 72N
Explanation:
W=mg
W=45×9.8=441N
Its weight on earth is 441N
W=mg
W=45×1.6=72N
Its weight on the moon is 72N
Answer:
441 Newtons and 72 newtons
Explanation:
Why? Answer down below!
Fill in the Blank:
Word Bank:
Decreases, Increases, Daughter, Replicates, Surface Area, Translates
As a body cell grows, the ratio of _______ to volume _________. Before it grows to large, a cell will divide into two ________ cells. So that each new cell receives its own genetic instructions, the cell ________ or copies, all of its DNA.
Answer: As a body cell grows, the ratio of SURFACE AREA to volume INCREASES. Before it grows to large, a cell will divide into two DAUGHTER cells. So that each new cell receives its own genetic instructions, the cell REPLICATES or copies, all of its DNA.
Explanation:
As a body cell grows, the ratio of surface area to volume decreases. Before it grows to large, a cell will divide into two daughter cells. So that each new cell receives its own genetic instructions, the cell replicates or copies, all of its DNA.
The volume of a growing cell increases at a larger pace than the surface area. Hence the ratio of the surface area to the volume of the cell keeps decreasing. At a certain point, the signal to divide is given and this leads to the division of the cell into two daughter cells.
Just before the division, the genetic material of the cell is replicated and other important biomolecules are synthesized before the final call can be made.
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Calculate the ratio of H+ ions to OH– ions at a pH = 7. Find the concentration of H+ ions to OH– ions listed in Table B of your Student Guide. Then divide the H+ concentration by the OH– concentration. Record this calculated ratio in Table A of your Student Guide.
Compare your approximated and calculated ratios of H+ ions to OH– ions at a pH = 7. Are they the same? Why or why not? Record your comparison in Table A.
What is the concentration of H+ ions at a pH = 7?
mol/L
What is the concentration of OH– ions at a pH = 7?
mol/L
What is the ratio of H+ ions to OH– ions at a pH = 7?
:1
Answer:
1:1
Explanation:
What is the concentration of H+ ions at a pH = 7?
⇒ 0.0000001 mol/L
What is the concentration of OH– ions at a pH = 7?
⇒ 0.0000001 mol/L
What is the ratio of H+ ions to OH– ions at a pH = 7?
1 :1
7th grade science need help
Answer:
The answer is B
Explanation:
Which is NOT an example of a structural adaption?
A. a pelican's pouch-like beak
B. Camouflaged seahorses
C. The migration of birds
D. dense fur on a brown bear
Answer:
D
Explanation:
Your sooo wellcome Honey
The water cycle is also called the Hydrolic Cycle.
It is the process by which water circulates between Earth’s oceans, atmosphere, and land.
It involves the following:
Water storage
evaporation
transpiration
_________________________
_________________________
_________________________ hold 96.5% of Earth’s water.
This is the primary pathway into the water cycle.
Oceans, seas, lakes, and rivers provide _____% of the moisture in our atmosphere through evaporation.
The process by which water changes from a _________________________ to a _________________________ .
It is the primary pathway that water moved from the liquid state back into the water cycle as _________________________ .
_________________________ (energy) from the sun is necessary for evaporation to occur.
Energy _________________________ bonds that hold water molecules together.
Boiling Point: _________________________
Freezing Point: __________________________
_________________________ is the process of snow and ice changing into water vapor without first melting into water.
_________________________ is water lost to the atmosphere when the ground surface and transpiration of groundwater by plants through leaves.
Superhighway used to transport water around the globe.
Involves _________________________ and _________________________ .
The process in which water vapor in the air changed into _________________________ .
The loss of _________________________ allows water molecules to bond,
Forms _________________________ or _________________________ .
Is water released from clouds in the form of:
_________________________
_________________________
_________________________
_________________________
_________________________
Provides the delivery system of _________________________ water to the Earth.
These are examples of water locked up in its present state of matter for a relatively long period of time.
This involves _________________________ and _________________________ .
This is _________________________ that did not get absorbed into soil, or evaporate.
_________________________ and _________________________ provides runoff when they melt._________________________
Water moved by _________________________ makes its way into places that collect water.
_________________________
_________________________
_________________________
_________________________
This is the downward process of moving water from the _________________________ into soil or poros rock.
_________________________ is large amounts of water stored in the ground.
_________________________ is another name for groundwater.
This is the area of land where all the water that dallas in it and grains off of, goes into the same place.
It can be as small as a footprint or as large as all the land that drains water into the _________________________ .
Answer:
The answer is water storage
Explanation:
The answer is water storage because water is managed, if water was not managed we will be walking in water instead of walking on grass.
if you are asked to label the forces that affect the seedling in the image shown, which pair of words and arrows are the most correct to enter into the boxes?
Up stem, up gravity
down gravity, up root
down stem, up root
down gravity, down root
Answer:
im pretty sure its up stem up root
Explanation:
i hope this is right sorry if wrong :)
Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. A physical change doesn’t break the bonds between atoms of a substance or form new ones. Compounds can be broken down by a chemical change. A chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. What simple substance would a compound break into? The basic elements that make it up! For example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. Which of the following is an example of a chemical change?
A
separating water into different glasses
B
breaking frozen ice cubes with a hammer
C
running an electric current through water
D
boiling water to evaporate it on a stove
Answer:
c
Explanation:
covalent bond and hydrogen bond
Answer:
C because
Explanation:
covalent bond and hydrogen bond Are both present Here so that will be your answer
Which type of fossil forms through carbonization?
A. Cast
B. Mold
C. Fossil Film
D. Trace Fossil
The answer is C, Fossil Film.
The fossil forms through carbonization is fossil fim.
What do you mean by carbonization?Carbonization is the destructive distillation of organic materials, such as dead plants and animals, to produce carbon.
When a fuel is heated without the presence of air, the result is solid, porous carbon. Commercially, coke is made by carbonizing coal at either high or low temperatures.
The process of heating complex carbonaceous materials like wood or agricultural waste to release their elemental carbon and potentially carbon-containing chemical compounds is known as carbonisation.
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Which of the following provides evidence that supports the continental drift theory?
Fossils of the same organisms found in different continents
Magnetized rocks that do not match with the poles
Seafloor spreading
Volcanic activity
Answer:
The First Answer with the fossils.
Explanation:
It explains why an animals fossils were found in 2 places that are no where near eachother. So it had to have been the same continent at somepoint.
Answer:
Continental drift was a theory that explained how continents shift position on Earth's surface. Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents.
Explanation:
Hope it's answer you plz mark as Brainlist
Please Help now! Thanks!
Answer:
A
Explanation:
I'm pretty sure it's A because fish = fish feces which = nutrients.
Answer:
D
Explanation:
"Making whales a protected species to increase the whale population." This is the correct answer because more whales means more recycled nutrients. Therefore, by protecting whales, more whales will play a role in the process of the "Whale Pump".
Which is an example of a functional adaption?
A. a brightly colored butterfly
B. birds flying south in the fall
C. the spray of a skunk
D. thorns on a rose
Answer:
thorns on a rose
Explanation:
because they serve the function of protection
Do you think that humans and humpback whales share a common evolutionary lineage?
Answer:
Yes!
Explanation:
Yes because when it comes to whales and humans we have a lot in common. They have different behaviors and languages within their own culture as humans do.They come in a lot of sizes and have different behaviors. Just like us and they are also mammals. While other sea creatures have gills.
Answer:
Scientists have used computer analysis to read evolution backward and reconstruct a large part of the genome of an 80-million-year-old mammal. This tiny shrewlike creature was the common ancestor of humans and other living mammals as diverse as horses, bats, tigers and whales.
Explanation:
Researchers have been studying how emissions from both volcanoes and human activities, such as the burning of fossil fuels, impact the atmosphere. Both types of emissions contribute to the total CO2 levels in the atmosphere. Graph 2 shows that atmospheric CO2 levels have been steadily increasing over time. This increase in CO2 levels has been linked to the increase in global surface temperatures.
Explain why the total mass of carbon must be decreasing in a different step of the slow carbon cycle based on the on the increase in atmospheric CO2.
Answer:
just look at the graph it literally tells you the answer
Plzz help
Acquired mutations _____.
only occur in sperm cells
can be caused by radiation
are inherited
only occur in egg cells
Answer:
can be caused by radiation
Explanation:
How does energy provided by the sun influence global patterns of atmospheric movement and the temperature?
Answer:
Auatmosphere-the gaseous envelope surrounding the earth; the air. Notes: The energy provided by the sun influences global patterns in atmospheric movement by the fact that the sun's energy(which is thermal energy; heat) heats up the air, water, and land which effects the wind in the atmosphere.
Explanation:
what organ system is affected? in albinism
Answer:hair, eyes, skin,and vision
Explanation:
its an interruption im the function of the enzyme tyrosinase
What were key documents referenced in the establishing Arizona Statehood?
Instructions: Write a new argument that supports the sub claim you chose above. This argument will be the second part of the press release, so make sure it is clear and convincing. • Include evidence and explain how this evidence supports this sub claim. • Look back at your work from this lesson. • You may also want to use the Argumentation Sentence Starters for help with organizing your thinking and constructing your argument.
The subclaim is; Bacteria from the fecal transplant can help the patient’s body produce immune cells that kill invading bacteria.
Answer:if you raise the points to 25 i will do everything with evidence etc.
Explanation:
Does anyone know something that I could do to help myself focus bcs I have ADD and I'm failing?
howdy.
when I have my ADD moments, I like to take a moment to myself to try and 'calm' them. Maybe scribble some random stuff, write random stuff, and sometimes that calms down. and if it's real bad I like to cheat sometimes. what are you failing in, if you don't mind me asking?
Which is an example of a sudden change that could lead to the extinction of species?
A. a mountain range isolates a species
B. Earth's tectonic plates move
C. a volcano erupts
D. sea level change
Answer:
D
Explanation:I think it is D
Answer:D
Explanation:
Right now a similar thing is happening by global warming which is leading to polar bears becoming extinct
Edit:Also B and C happen on a regular basis but rarely lead to the extinction of a species and A would lead to the evaluation of an isolated species