Answer:
Petroleum is a fossil fuel, meaning that it has been created by the decomposition of organic matter over millions of years. Petroleum is formed when large quantities of dead organisms–primarily zooplankton and algae–underneath sedimentary rock are subjected to intense heat and pressure.
Answer:
Explanation:
petrolism is formed when large quantities of dead organism mostly algae are buried underneath sedimentary rock and subjected to both intense heat and pressure.
what natural causes destroy ponds
Answer:
invasive species
Answer:
In the explanation. :)
Explanation:
The water in a pond must remain clean if it is to provide a healthy environment for the organisms (animals and plants) living in it. The natural waste from the living and dead organisms is ‘recycled’ by special tiny organisms called bacteria. Plenty of oxygen is needed for the bacteria to ‘break down’ the waste. The pond can take care of its own waste – it’s people who cause pollution!
The most noticeable kind of pollution is the dumping of rubbish – anything from old cars and drinks cans to bikes and bottles have been found cluttering up ponds. This not only makes the environment look so unsightly but it may also destroy pond-life.
Perhaps the most serious threat to ponds is chemical pollution as a result of modern farming methods. Over the years fields have been sprayed with pesticides to rid the crops of pests. However, rain often washes the excess chemicals off the crops into nearby ponds, streams or rivers, poisoning some of the animals living there. Fortunately, these poisonous chemicals are not used so freely now and, hopefully, this problem will gradually be reduced.
Another, equally serious, problem connected with agriculture is the use of artificial fertilizers. Powdery chemical fertilizers, containing nitrates, are put on the crops to help their growth but they can also be washed off by rain into nearby ponds. They do not poison the wildlife but the rich supply of nitrogen causes the water plants, especially algae, to grow very quickly. The plants use up so much oxygen during the night and during decaying processes that there is none left for the other pond-life. The growth also prevents sunlight reaching the organisms below. Eventually, all the algae die leaving a smelly, decaying mass. The case of excess nitrates in water is called eutrophication.
Hope this helps. Have a great day!
how does seafloor spreading occur
A. New materials are being added to the asthenosphere
B. Earthquake breaks apart the ocean floor
C. Sediments accumulate at the area of spreading
D. Molten materials beneath the earth crust rise to the surface
the answer is d due to divergent plate boundaries
Search the NIH gene database for the term colorblindness. Use the results of the database search to explain how a father and mother who are not colorblind could have a son who is colorblind. Your model can be a pedigree chart, a Punnett square, or a diagram of chromosomes.
Answer/Explanation:
Red/green colorblindness is a recessive, X-linked condition. That means that the affected gene is on the X chromosome, and that the phenotype will only be present if there is no "healthy" gene, which is dominant to the mutated gene.
For two unaffected people to have an affected son, the mother must be a carrier. Remember, females have two X chromosomes and males have one. So if a female is a carrier of the colorblindness mutation, she will have one copy of the mutation and one normal copy of the gene, and will therefore be unaffected.
The punnet square (attached) shows that all their female children would be unaffected (have the B gene), but 1:2 male children would be colorblind, as their only copy of the gene is mutated (b).
Answer:
The person on top is awesome appreciate!!
Explanation:
got it right on edmmentum
Which statements could be categorized in the "Asexual" section of the Venn diagram? Check all that apply
Answer:
The right answer are : mitosis, diploid cells, and identical DNA.
Explanation:
The answers "two cell divisions" and "gametes" refers to a division by meiosis which is a sexual reproduction.
Asexual reproduction or asexual reproduction is a mode of reproduction, which - as opposed to sexual reproduction - corresponds to the capacity of living organisms to multiply alone, without a partner, without involving the fusion of two gametes of opposite sexes. Asexual reproduction is observed in multicellular (animal and plant) and unicellular organisms. In botany, the term often used for the asexual multiplication of plants is vegetative multiplication. In all cases of asexual reproduction, the result is identical to the mother.
Question 4 (3 points)
Which of the following structures would you not find in a prokaryotic cell?
third
Describe three ways
that some bacteria
move around to find
resources.
Answer:
1. swimming
2. swarming
3. gliding
Explanation:
hope this Helps!
bacteria that feed off of food in human gut and provide essential nutrients to their host are an example of
Answer:hmmm
Explanation:
How do scientists know about the structure of the earth?
Question 21 options:
We have drilled all the way to the core of the earth.
We have drilled far enough into the earth to reach the mantle.
S waves from earthquakes can travel through both solids and liquids so they tell us what is inside the earth.
P waves from earthquakes can travel through both solids and liquids so they tell us what is inside the earth.
Answer:
I think it's " P waves from earthquakes can travel through both solids and liquids so they tell us what is inside the earth. "
Explanation:
Which of the following describes an ADP molecule?
Answer:
The correct answer is -
ADP has less potential energy than ATP
ADP can be created when an ATP breaks or releases a phosphate bond.
Explanation:
ADP is adenosine diphosphate which means adenosine bound with a sugar molecule and two groups of phosphate molecules that also play an important role in cellular energy flow like ATP.
In ATP, there are three phosphates and two high energy bond that provides much energy in breaking whereas, in ADP, only one high energy bond and two phosphates present there.
When an ATP molecule breaks or releases one of its Phosphoanhydrous bonds and release energy and one of the phosphate groups, adenosine diphosphate or ADP created.
Which system is the digestive system least connected to?
A)Nervous
B) Integumentary
C) Circulatory
D) Excretory
The system that the digestive system is least connected to is the Integumentary which is option B.
In the body, food is broken down into simple, soluble and diffusible substances by mechanical and chemical means through the digestive system.
The alimentary tract of the digestive system is connected to the nervous system. This is because the autonomic nervous system supplies nerves to the alimentary tract and this leads to:
Either increase or decrease of muscular activity, especially peristalsis.Either increase or decrease of glandular secretion.The circulatory system is connected to the digestive system through blood supply from the arteries and blood drainage through the veins.
The excretory system is connected to the digestive system. this true because the food substances that have been eaten but cannot be digested and absorbed are excreted from the alimentary canal as faeces by by the process of defecation.
The Integumentary system in an external part of the body which is involves protection of the body. it dosen't play any role in the digestive system and so its least connected to it.
Learn more here:
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Air is a mixture of freely moving molecules of different gases. peeling an onion releases molecules you can smell into the air. the onion molecules naturally spread out through the air a room by the process of
A. concentration
B. diffusion
C. reacting
D. flowing
Answer:
I think D but not for sure.
Answer:
its B. By diffusion
Explanation:
The gravitational force between two objects will become ___ as their mass increases
a greater
b closer
c heavier
d less
Answer: a
Explanation:
Answer:
A
Explanation:
Because when something is using gravitational force between objects it will be greater as the mass increasesPleaseee hellpppppp!!!!
Answer:
C
Explanation:
hope this helped and yes im postitive
Please put the following in order from Least Inclusive to MOST inclusive...
Organs Molecules Organ Systems
Organism Cells Tissue
A) Organism -> Organ Systems -> Organs -> Tissue -> Cells -> Molecules
B)Atoms -> Cells -> Molecules -> Organs-> Organ Systems -> Organism
C) Molecules -> Cells -> Tissue -> Organs -> Organ Systems -> Organism
D) Cells -> Organism-> Tissue -> Organ Systems -> Molecules -> Organs
Stomata are pores in the leaves of plants that allow gases to enter and exit the cells.
During the sunniest part of the day, the leaves are most actively performing photosynthesis.
During this time, which gas do the stomata allow into the leaf cells?
Answer:
carbon dioxide
Explanation:
In most plants, the roots absorb water from the soil. The water travels up through the xylem, a specialized layer of cells. In some plants, the water is absorbed through the leaves, directly from the air. Carbon dioxide, an atmospheric gas, enters the leaf through the stomata, the tiny pores in the leaves (a stoma is a single pore).
This activity is an example of which threat to biodiversity?
Answer:
hi
Explanation:
PLEASE HELPPP I NEED TO SUBMIT IN LESS THEN 5 MINS!!!!
Question 1: What do the large intestine and kidneys have in common?
Question 2: What does the stomach acid and immune system have in common?
Which of these is not a characteristic of life
A- oxygen usage
B- an organism consists of on or more cells
C- use of energy and metabolic processes
D- ability to reproduce
Answer:
D- Ability to reproduce
What are the differences between the Big Bang Theory and the Steady State Theory?
Answer
One is a move and the other is a part of a state.
Explanation:
Answer:
The only difference, he explained, was that in the big bang scenario all the matter was created in one explosive beginning.
4. This method of measuring the volume of your lungs is probably not completely
accurate. What changes would you make if you did this type of experiment to make it
more accurate?
Biology
Answer:
The most accurate method to measure your lung volumes is through Spirometer.
Explanation:
Spirometer is an machine that is used on the clinical basis to measure the volume of inspired and expired air by lungs. We get a proper readings of different volumes of our lungs, doctors can also diagnose if there is any respiratory disorder.Sea turtles dig holes on coastal
beaches and lay their eggs in the
hole. The mothers then retreat
back to the ocean. Based on this,
sea turtles could be considered
-selected.
A. K
B. S
C.
D. r
r-strategist are species that have large offsprings, but spend no time in parental care. Sea turtles can be considered exaples of r-strategist species.
What are r and k strategists?Species have different strategies to survive in different environments, reproduce, disperse, and compete. These strategies are r strategies and k strategies.
r strategist species have a high growth rate per capita, and low competition capabilities. This is why they can colonize new environments. But they can not compete with new-established species. r species are often displaced by k species.These species are mostly small-sized organisms with short life cycles. They reach sexual maturity early and have numerous descendants spending no time or energy in parental care.
k strategist species have a low growth rate per capita, but they are big competitors with the capacity of displacing other species and monopolizing the available resources.These are big-sized species that live for a long time, reaching sexual maturity in the advanced stages of their lives. They do not have numerous progenies, but they spend time parenting.
r and k strategies are closely related to reproductive strategies, habitat selection, and dispersion ability.
Considering this difference, we can assume sea turtles are r strategist.
They lay several eggs and leave them on the beach. They spend no energy in parenting. Even though they are buried, eggs are still in danger of being attacked by predators.When little turtles emerge, they have to manage to go to to the sea by themselves, being exposed to other predators.The strategy is to spend more energy in laying several eggs to increase survival probabilities, and less energy in parenting.
You can learn more about r strategist at
https://brainly.com/question/12538368
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Answer: D/r-selected
Explanation:
8. PLEASE HELP A LOT OF POINTSSS
Answer:
A. Decompose and grass
Explanation:
grass will grow and die and decompose down into soil as it dried off and faded away overtime.
Answer:
c
Explanation:
Frogs and snakes both compete for the same food source! Which is the decomposer!!
Which of the following is the classic hot and dry desert?
a. arid desert
b. coastal desert
C. cold desert
d. none of the above
Please select the best answer from the choices provided
B
ОООО
С
D
Answer:
A
Explanation:
Among the options given, the arid desert represents an example of the classic hot and dry desert. Thus, the correct option for this question is A.
What are the characteristics of the hot and dry deserts?Hot and dry deserts have extremely hot climates and challenging environments. There is very little biodiversity in hot deserts because of the harsh climate. Few species are specialized enough to survive there. Apart from this, the climate is very dry with less than 250 mm of rainfall a year.
According to the context of this question, cold deserts have extremely low temperatures and snowfall. While coastal deserts occur in cool to warm areas along the coast. They have cool winters and long, warm summers. Coastal deserts are located on the west coasts of continents between 20° to 30° latitude.
Therefore, the arid desert represents an example of the classic hot and dry desert. Thus, the correct option for this question is A.
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Explain what is sercretion
Answer:
a process by which substances are produced and discharged from a cell, gland, or organ for a particular function in the organism or for excretion.Explanation:
HELP PLEASE PLEASE PLEASE! ILL GIVE BRAINLIEST!
Q: What is a controlled variable? Give an example
(BTW if u can let me know if the answer is from google so I can put it in my own words, if it's not also let me know! if you don't it's fine! , works either way!)
Answer:
A control variable is the variable in the experiment that does not change.
Explanation:
If you are testing how seeds grow in different types of water, and you add 1tbps of salt to one pot of water with the plant, and then added 2tbps to another pot of water with the plant. The control variable in this experiment would be the water with no salt because it was not altered.
FYI I did not pull from google. Good luck!
Can someone answer this please?
what is convection in the atmosphere called ? please answer quick !!
Answer:
Atmospheric convection.
Explanation:
Atmospheric convection is the result of a parcel -environment instability, or temperature difference, layer in the atmosphere.
Hope this helps! Have a great day! :)
Use the drop-down menus to complete each statement.
During the
trimester, the fetus rapidly gains weight.
During the
trimester, the fetus’s sex organs develop.
The umbilical cord forms during the
trimester.
The lungs do not develop until the
trimester.
Answer:
Third, First, First, Third are your answers.
Explanation:
Cause they are.
According to the question the answer as follow:
The umbilical cord forms during the trimester.During the trimester, the fetus rapidly gains weight.The lungs do not develop until the trimester.During the trimester, the fetus’s organs develop.Is a fetus a baby?After the embryonic period has ended at the end of the 10th week of pregnancy, the embryo is now considered a fetus. A fetus is a developing baby beginning in the 11th week of pregnancy.
Thus, these are the answer.
To learn more about fetus click here:
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True or False:
Evolution acts on life and leads to adaptations in species.
summarize how small, nonpolar molecules enter and leave the cell (and why).
Answer:
Small, nonpolar molecules (ex: oxygen and carbon dioxide) can pass through the lipid bilayer and do so by squeezing through the phospholipid bilayers. They don't need proteins for transport and can diffuse across quickly.
Explanation:
The channel proteins act like doors through the cell membrane.
They allow large polar molecules to move in and out of the cell.
The process is called passive diffusion or passive transport, because it does not need energy.
Sometimes the protein changes shape to help the polar molecules move through the channel.
It often uses a gated pore mechanism, in which the channel is never completely open.
