Answer:
Crude oil is the main source
Explanation:
hope it helps
Pls mark as brainlist
If you wanted to study the effects of soil moisture and light intensity on the growth of soybeans and required a high ability to regulate these independent variables, what type of experiment would you choose?A. Laboratory experiment.
B. Field experiment.
C. Natural experiment.
D. Reference experiment.
Answer:
A
Explanation:
The correct answer would laboratory experiment.
In the laboratory, variables can be controlled as much as possible using relevant equipment unlike in natural habitats or field experiments. For example, the amount of water that each plant would receive can be measured using measuring cylinders and the time they are applied can also be fixed.
Field and natural experiments require that experimental procedures are carried out in the field under natural conditions. Consequently, variables such as the amount of moisture that gets into the soil or the amount of light a plant will receive will be extremely difficult to control. Precipitation time and the duration of light can also not be controlled.
The correct option is, therefore, A.
What kind of cells is Mitosis used for?
sex cells
nerve cells
animal cells
body/somatic cells
Answer:
Animal cells
Explanation:
is the human population growth also a factor. for. causing deforestation? justify your answer giving reason
Answer:
Population growth, combined with other direct factors such as poverty, corruption, and weak property rights, contributes to forest loss and severe environmental degradation. Demand for forest and agricultural products to feed growing rural and urban populations will continue to put pressure on forests.
Explanation:
PLEASE HELP!!!
What are sections of a DNA molecule called ? Genes
Proteins
Amino acids Carbohydrates
Explanation:
Genes
..................
Guess why most leaves are wide and thin.
Answer:
Due to their broad surface areas, green leaves can absorb more sunlight at a given time, and due to the thinness of the leaves, the light energy can easily penetrate the leaf surface and be trapped by the chloroplasts. This makes photosynthesis efficient. Therefore, green leaves are thin and broad.
Explanation:
Hope this helps you......
Term
1.
2.
3.
countrationer
5.
6.
7.
8.
9.
10.
11.
12.
Definition
high to low movement of molecules; uses transport protein; no energy required
a solution that has the same concentration of solute as the cells it surrounds
water-loving
a difference in the concentration of molecules from one location to another
structure that identifies the cell
having less solute molecules than the cytoplasm of a cell
allows certain molecules to pass through; keeps some molecules out
the amount of molecules in a specified area
use of vesicles to move large molecules out of the cell
the substance that is dissolved in a solution
movement of molecules from a low to high concentration; uses transport protein;
requires energy
movement of water from an area of high concentration to an area of low
concentration through a cell membrane; no energy required
mixture created when one substance is dissolved in another
movement of molecules from an area of high concentration to an area of low
concentration; no energy required
use of vesicles to move large molecules into the cell
a solution that has a higher concentration of solute molecules than the cytoplasm
of the cell it surrounds; will cause cells to shrink
phospholipid and protein covering of every cell that controls what goes into and
out of each cell
the liquid that dissolves the solute in a solution
water-fearing
a solution that has a lower concentration of solute molecules than the cytoplasm
of the cell it surrounds; will cause cells to swell and burst
a structure that helps to move molecules across the cell membrane
current model that describes membrane structure in which a phospholipid sea is
embedded with a wide variety (mosaic) of protein molecules
13
14.
A diffusion
15.
16.
17
18.
19.
20.
21.
22.
Answer:
structure that identifies the cell / recognizes stuff around the cell. hypotonic. having less solute molecules than cytoplasm of a cell / having a lower ... movement of molecules from low to high; uses transport protein; requires energy ... movement of molecules from high concentration to low concentration; no energy required.
Explanation:
Please help me (> ^<)ゞ
Although scientists are unable to explore the Sun's layers directly with instruments, they can measure the change in the speeds of the surface layers and the temperature of those layers from Earth Using this data, scientists have created models of the Sun and we
now know that the sunspots that form on the surface are the areas of coolest temperature for this stat. At the sunspots, temperatures are merely 3700 Kelvin (1) What does this indirect information about the Sun confirm?
A- The Sun has a structure similar to Earth's structure
B- Storms form on the surface of the Sun, similar to the atmosphere of Earth
C-The Sun's photosphere has properties of a solid, similar to the crust of Earth.
D-Convection occurs in parts of the Sun, similar to convection in the mantie of Earth
Answer:
I d k really but my educated guess is A- The Sun has a structure similar to Earth's structure * even tho the suns structure is completely gaseous is similar to earth w the layers ii don't know
Explanation:
Hope it Helped !
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:_\/_:'.:::. /)\*''* .|.* '.\'/.'_\(/_'.':'.'
: /\ : ::::: '*_\/_* | | -= o =- /)\ ' *
'..' ':::' * /\ * |'| .'/.\'. '._____
* __*..* | | : |. |' .---"|
_* .-' '-. | | .--'| || | _| |
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jgs~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A student is studying the levels of organization in living things and creates a table to give examples of the different levels.
Which of these should the student write as an example of the organism level of organization?
A. sparrow
B. stomach
C. muscle tissue
D. culture of bacteria
Answer:A. sparrow
Explanation:
se the information from the article to answer the question.
NEOs
When scientists discuss objects that might hit Earth, what term do they use to describe them as a group?
near-Earth objects
asteroids and comets
Shoemaker-Levy 9
celestial bodies
Answer:
A. near-Earth objects.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.
When scientists discuss objects that might hit Earth, the term which they use to describe them as a group is near-Earth objects.
A near-Earth objects can be defined as a small solar system body such as comets and asteroids whose orbit draws it close or in proximity to the earth's orbit due to the gravitational force of attraction of nearby planetary bodies.
Basically, if the closest approach of a planetary body to the Sun is less than 1.3 AU it is considered to be a near-Earth objects.
Hence, near-Earth objects may pose a collision danger to planet earth.
Answer: A Near Earth objects
Explanation:
Use the information from the article to answer the question.
NEOs
When scientists discuss objects that might hit Earth, what term do they use to describe them as a group?
near-Earth objects
asteroids and comets
Shoemaker-Levy 9
celestial bodies
Allotropes of carbon.give examples
Answer:
They are three.
Explanation:
i) Graphite
ii)Diamond
iii)Fullerenes
Light reactions occur inside of the thylakiod membranes and they produce oxygen, ATP, and NADP
True
False
Scientific theory is based on
A) Data collected over time
B) A general claim by scientist
C) The best guesses of a scientist
D) an idea that can be proven true
Answer:
I think it's D
Explanation:
Cause usually a scientist creates a hypothesis or theory so they can prove that it's true.
¯\_(ツ)_/¯
Answer:
A) Data collected over time
An individual has the genotype Aa Bb CC Dd ee FF. How many different types of gametes could it produce in terms of unique allelic combinations of these genes?
Answer:
64
Explanation:
The individual in this question with genotype: Aa Bb CC Dd ee FF has six (6) different traits encoded by six (6) genes. The diploid number of the organism in this question is 12, however, the number of possible allelic combinations in each gamete can be calculated by using 2^n where n = haploid number of chromosome or number of allele that can be in one gamete.
Using this simple formula, 6 possible alleles can be in the gamete of this organism with the above genotype, hence, the individual can produce 2^6 = 64 different types of gametes in terms of unique allelic combinations of these 6 genes.
Put the following in correct order:
1.Bone is carved back into its original shape by osteoclasts 2.Blood is rushed to the area causing swelling
3.Hematoma is changed into bone by osteoblasts 4.Endorphins (the body's natural painkiller) is released 5.Hematoma(blood clot is formed)
Answer:
Im doing this in numbers btw from top to bottom.
Explanation:
5, First
2, Second
3, Third
1, Fourth
4. Last
Which blood type can give to all the other blood types?
Answer:
Type O
Explanation:
Type O can donate red blood cells to anybody. It's the universal donor. Group AB can donate to other AB's but can receive from all others.
What would happen to a resting skeletal muscle if the
sarcolemma suddenly became very permeable to calcium
ions?
Answer:
akoto sacaculocome cac
Question 4
Place the following in correct developmental sequence:
1. reticulocyte
2. Proerythroblast
3. hemocytoblast
4. erythroblast
3.2.4.1.
3.1.4.2.
2.3.4.1.
2.1.3.4.
.3.1.4.2
-3. hemocytoblast
-1. reticulocyte
-4. erythroblast
-2. Proerythroblast
Methods used to study mineral elements present in plants
Answer:
The quantitative concentration of mineral elements present in horticultural crops can be determined by atomic absorption spectrometry (AAS), inductively coupled plasma atomic emission spectrometry (ICP-AES), inductively coupled plasma mass spectrometry (ICP-MS), flame atomic absorption spectrometry (FAAS)
1.Organisms without a distinct nucleus
2 .Structures that display characteristics of living organisms only
within living cells
3. The close association between two organisms where one or both
benefit muclism
4. Disease caused by a virus that leads to a gradual destruction of th
mmune system
5. Process by which bacteria break organic matter into simple
utrients which are then returned to the so
A term used to describe organisms that cause diseases e.g. bacteria
what are electromagnetic waves
Answer:
Electromagnetic waves are formed when an electric field comes in contact with a magnetic field. They are hence known as 'electromagnetic' waves.
Explanation:
Answer:
they are basically electromagnetic radiation which refers to the electromagnetic field. they propagate through space carrying electromagnetic radiant energy. they include radio waves, microwaves, infrared waves, light, ultraviolet, x-rays, and gamma rays.
Does a Hematopathologist work with unicellular or multicellular organisms? Select the BEST answer.
Select one:
a. Multicellular
b. Both equally
c. None
d. Unicellular
Answer:
b
Explanation:
A hematopathologist is a health care professional who works with the unicellular or multicellular organisms, both equally. Thus, the correct option will be B.
Who is a Hematopathologist?Hematopathologists can be referred to as the specially trained healthcare professionals who are responsible for the diagnosis of the diseases related to the different types of blood cells.
Hematopathologists use the specialized tests such as flow cytometry studies and the immunohistochemistry. The hematopathologist uses the results of these tests for the analysis and diagnosis of the infections and diseases of the blood, lymph nodes and the bone marrow.
A hematopathologist works with both the unicellular and multicellular organism equally.
Therefore, the correct option will be option B.
Learn more about Pathology here:
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How .....................................................................................................................
Answer:
how? what do you mean
Explanation:
how what :)gl
Answer:
um how what?
Explanation:
Which product is the result of mitosis?
A. two daughter cells
B. two identical nuclei
C. two strands of DNA
D. two sister chromatids
Answer:
Pretty sure that its C im really sorry if I'm wrong
Use your knowledge of amino acids for energy metabolism to select the term that best completes each description. Glucose cannot be made when amino acids are converted to_________ . In the TCA cycle, some amino acids enter directly and, therefore, can continue in the cycle to generate energy and_______ . When is available, the body can use and glycerol to make some non-essential amino acids.
Answer:
Acetyl CoA; glucose
Explanation:
Acetyl-CoA is a molecule known to be part of different reactions during carbohydrate, protein, and lipid metabolism. Pyruvate (also known as pyruvic acid) is a molecule whose decarboxylation produces acetyl-CoA. Glucose cannot be synthesized when amino acids are converted to Acetyl CoA because this molecule (Acetyl CoA) cannot be converted back to pyruvate. The citric acid cycle (CAC), also known as the tricarboxylic acid (TCA) cycle, is a group of biochemical reactions that release energy by oxidation of acetyl-CoA obtained from sources such as proteins, carbohydrates and fats. During amino acid metabolism, glucogenic amino acids and TCA intermediates can be converted into glucose through gluconeogenesis.
the earliest form of spongy bone in a developing long bone is termed
Answer:
Osteoid
Explanation:
The earliest form of spongy bone in a developing long bone is termed as Osteoid.
Osteoid is defined as the the unmineralized, matrix material that is made up of a fibrous protein, collagen, and mucopolysaccharide and forms prior to the maturation of bone tissue.
Osteoblasts, the process of formation of bones takes place when inorganic salts starts depositing over osteoid to form the hardened material.
Hence, the correct answer is "Osteoid".
Is cloning and genetic engineering ethical?
Answer:
yes.....................
Answer:
It lies on your perspective
Explanation:
If you clone a human because that is the perfect human, or you genetic engineer a human to make the perfect human, society will benefit, but will the clone/engineered human benefit? As I already said, it is all about perspective.
12 Which direction does blood flow in arteries?
Answer:
Like all fluids, blood flows from a high pressure area to a region with lower pressure.
Good luck!
Answer:
The arteries carry blood out of the heart and the veins carry it in. The flow of blood through the vessels and chambers of the heart is controlled by valves.
What might happen to the magma convection currents if there were no radiogenic heat produced in the core?
How would this affect life on Earth?
Plz help me
Answer:
If there were no radiogenic heat produced in the core, there would be no convection currents, and life on the Earth would not be possible.
Explanation:
The convection currents are the result of heating by temperature gradients. Differences in temperature and density produce these currents. Warm materials are lighter and can ascend, while cold materials are heavier and denser, so they tend to descend. These materials movements create a circular motion pattern known as convective currents. They occur in the atmosphere, in the water, and the Earth mantle. In the last case, while the hot material emerges from the bottom areas, the cold mantle sinks, creating a circular convection current. These play a significant role in fluids circulation and might be responsible for the movements of the lithospheric plates that are over the mantle. The temperature on the surface is much inferior that the mantle´s temperature, so the lithospheric pieces sink, creating a descendent current. Near the terrestrial core, the heat might reach up to 3,500ºC, and solid materials in these areas melt and fuse. When fusing, materials lose density, becoming lighter and ascending again to the surface, creating the ascending currents. The currents of ascending materials are known as thermal feathers or plumes.
Hot ascending material keeps the surface warm, making life possible. Also, radiogenic heat produced in the core is responsible for the electromagnetic field.
The electromagnetic field protects the Earth from many particles that come forward to the surface from space, specifically from the sun. The electromagnetic field also influences the atmosphere, keeping it in its place, necessary for life on Earth.
The plate´s movement produces earthquakes and volcanic activity. Both of them also necessary for many reasons, such as keeping fertile soils and producing necessary atmospheric gasses.
Through the years, the core losses heat, and eventually, it will become solid. When this happens, convective currents will stop because there will be no heat from the bottom to make them move. The electromagnetic field will disappear, and the atmosphere will be affected as well. The Earth surface will become cold. Mantle movement will stop, and there will be no earthquakes nor volcanic activities. Every living being on Earth will be affected by this fact. Life on Earth will not be possible.
Which statement best describes the relationship between cells, DNA, and proteins? * 1 point A) Cells contain DNA that controls the production of proteins. B) DNA is composed of proteins that carry coded information for how cells function. C) Proteins are used to produce cells that link amino acids together into DNA. D) Cells are linked together by proteins to make different kinds of DNA molecules
Answer:
It's going to be A
Explanation:
DNA has instruction in it on how to do protein synthesis.
Know what atomic mass and atomic number represent