Alternative energy sources are those that do not deplete natural resources and do not harm the environment.
Options A, B, and C are all fossil fuels, which we know can be depleted and harm the environment.
The only valid option here is D, Geothermal energy.
Geothermal energy is both renewable and environmentally friendly.
Explain how
prokaryotes are
classified
differently than
eukaryotes.
Answer: The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is only one of the many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles.
Explanation: Have a great day hope this helps!
¿Cuál es el triplete qué en la región promotora del ADN indica el inicio de la síntesis de proteínas?
Answer:
AUG
Explanation:
The arrows between the circulatory system and respiratory system show ______.
The arrow going from the respiratory system to the circulatory system shows ____.
The arrow going from the circulatory system back to the respiratory system shows ____.
Answer:
I think it’s the flow of blood I may be wrong though
Explanation:
In a batch culture, bacterial cultures typically exhibit four different phases of growth. In which phase are the cells rapidly synthesizing proteins, but cell numbers are not changing
Answer:
Lag phase
Explanation:
The lag phase is the first phase of bacteria growth and it is refer to period when bacteria is first introduced to the culture and the time it started increasing. The lag phase is the phase bacteria adapt to growth conditions and start surviving in the environment. It is the time bacteria start growing and cannot divide. In this phase , RNA and enzymes are synthesized.
Extinction is the dying out of a species. What can lead to the extinction of a species if
the environment changes?
A.
B.
sexual reproduction within a species
a lack of adaptations within a species
an increase in the reproductive rate within a species
the presence of genetic variations among a species
C.
D.
Answer:
the world shows no mercy so y should you
Explanation:
no mercy
How does mining impact the environment?
It has a positive impact on the environment by permanently altering the ecosystem.
It has a positive impact on the environment by releasing chemicals into the environment.
It has a negative impact on the environment by allowing toxic chemicals to harm wildlife.
It has a negative impact on the environment by providing new niches for wildlife to inhabit.
Answer:
It has a negative impact on the environment by allowing toxic chemicals to harm wildlife
Mining affects the environment and has a negative impact on it, this type of human activity produces toxic chemicals that harm wildlife.
What are the impacts of mining?Mining has a significant impact on the environment, as the development of this activity almost always involves suppression of vegetation, exposure of the soil to erosive processes with changes in the quantity and quality of surface and underground water resources, in addition to causing air pollution.
With this information, we can conclude that Mining affects the environment has a negative impact on the environment, allowing toxic chemicals to harm wildlife.
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6 Which of the following statements about shark teeth fossil evidence is not consistent with the scientific theory of evolution? (7 Points) A. Many fossils of Shark teeth have recently been found that are all the same size and color compared to modern sharks. B. Many fossils of Shał teeth have been found that show different sizes and serrations (saw-like edges). These fossil teeth have distinct differences and similarities to modern sharks. C. Many fossils of Shark scales have been found that have features of enlarged scales that resemble a brush. Our modern sharks do not have or need this type of scale to survive. D. A new shark fossil has been found that has characteristics in the size of the teeth and the serrations (saw-like edges) that are in between the older fossils found and the modern shark.
Answer:
A. Many fossils of Shark teeth have recently been found that are all the same size and color compared to modern sharks.
Explanation:
Evolution is the change in characteristics of a species over time and it relies on the process of natural selection.
The theory of evolution states that all species are related and gradually change over time.
Since all options except A show a change in the characteristics of shark teeth in the fossils found in relation to modern sharks, option A is the answer. Since, there is no change in characteristics between the Shark teeth in the fossils and that of modern sharks.
So, option A is the answer.
Which process will directly result in organic matter being added to the soil?
water freezing in cracks of rocks
glaciers carving out a valley
river water eroding the banks of a stream
bacteria breaking down dead matter
Answer:
I think it should be the last one, "bacteria breaking down dead matter" hope this helps !!
You want to know if the temperature of water affects how quickly a cube of
sugar will dissolve, or seem to disappear, into the water. In a controlled
experiment, what would be the responding (dependent), variable?
O The time it takes for the sugar cube to dissolve in water
O The amount of water
O The size of the sugar cube
The temperature of the water
Answer:
The time it takes for the sugar cube to dissolve in water
Explanation:
no links:
Which of the following statements best describes siRNA?
A portion of rRNA that allows it to bind to several ribosomal proteins in forming large or small subunits
A short double-stranded RNA, one of whose strands can block gene expression
A double-stranded RNA that is formed by cleavage of hairpin loops in a larger precursor
An RNA sequence that can block the expression of some transposons
Answer:
A short double-stranded RNA, one of whose strands can block gene expression
Explanation:
SiRNA, also known as short interfering RNA, is are short double stranded DNA that binds to mRNA for the purpose of destroying the mRNA sequence, hence, preventing it from being translated into a protein.
According to this question, SiRNA can be described as a short double-stranded RNA, one of whose strands can block gene expression (translation of mRNA).
a key feature of enzymes is that they _____.
a. interact generally within cells
b. are changed by reactions
c. are carbohydrates
d. are not used up in reactions
e. force reactions to occur
Answer:
d. Are not used up in reactions
Explanation:
This is a property of enzymes. They are not used up since they don't participate in reactions. They just help increase the rate at which it occurs
A key feature of enzymes is that they force reactions to occur. Thus, the correct option for this question is E.
What are Enzymes?Enzymes may be defined as biocatalysts that increase the rate of a chemical reaction without being changed in the overall process. It may be thought that all sorts of cellular reactions or processes are mediated by enzymes.
Most of the enzymes are proteins. They are highly specific in nature. Enzymes also exhibit enormous catalytic power. They do not alter the equilibrium state of biochemical reactions.
Enzymes typically speed up the rate of a chemical reaction by lowering the activation energy of a particular reaction. Thus, it leads to the conversion of reactants into products at a faster rate.
Therefore, a key feature of enzymes is that they force reactions to occur. Thus, the correct option for this question is E.
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match the parts of the city and if you can pls explain
4. Blood group which has both types of antibodies is.....
A-A
В- 0
C-AB
D-B
Answer:
c-ab is the only correct answer
7. The diagrams show stages in the passage of water through a plant,
The circles are the starting points for arrows to show the direction in which the water moves.
Which circle must have an arrow pointing downwards only?
From the understanding of how water moves through plants, the only circle that can have a downward pointing arrow only is A.
Water moves through a plant in the following direction:
Soil ----> root -----> stem ----> leaves
Once water gets into the root from the soil, a conducting tissue known as xylem conducts the water upward through the stem of the plant branching off into the leaves through the petiole. from the petiole, water is then conducted to the mesophyll cells.
Circle D represents the root, so the arrow must be upward.
Circle C represents the stem, the arrow continues upward towards the leaves
Circle A and B represent the leaf. The movement of water within the leaf might requires that it is from circle A to circle B. Hence, the only circle that must have an arrow pointing downward only can only be A.
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Which of the following is an accurate description of cosmic microwave background (CMB) radiation? Select the two correct answers.
A. CMB is uniformly distributed and of a uniform temperature across the universe.
B. CMB is constantly generated by stars.
C. CMB is remnant radiation from the Big Bang.
D. CMB is randomly distributed and of differing temperatures across the universe.
Answer:
if I am correct the answer should be C
The answer to the question Which of the following is an accurate description of cosmic microwave background (CMB) radiation is A: CMB is uniformly distributed and of a uniform temperature across the universe. and C: CMB is remnant radiation from Big Bang
The Big Bang is the scientific explanation of the origins of the universe. The Big Bang occurred some 13.77 million years ago.
At the occurrence of the Big Bang, the universe started to develop and the first few atoms were formed. As the universe was formed at the big bang, cosmic microwave background (CMB) radiation developed.
This cosmic microwave background (CMB) radiation is an electromagnetic radiation. CMB radiation is a faint cosmic background radiation filling space. CMB radiation is a remnant radiation from the Big bang. CMB radiation is uniformly distributed and of a uniform temperature across the universe. This cosmic microwave background radiation was first detected in 1965 by American astronomers Arno Penzias and Robert Wilson. This discovery of the cosmic microwave background radiation was evidence of the Big bang.Thus, the CMB is remnant radiation from Big Bang and CMB is uniformly distributed and of a uniform temperature across the universe.
So, the answer to the question Which of the following is an accurate description of cosmic microwave background (CMB) radiation is A: CMB is uniformly distributed and of a uniform temperature across the universe. and C: CMB is remnant radiation from Big Bang
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hueso impar y externo de la cabeza , ubicado en la parte posterior e inferior de la misma
Answer:
creo que es el cranio
The process where messenger RNA (mRNA) is created from instructions
the DNA is called?
A.Transcription
B.Translation
C.Replication
D.None of the above
Answer:C.....
Explanation:
The African savanna is a large grassland region with few trees that is hot and
seasonally dry. A population of lions and a population of wild dogs living there are
most likely to compete with each other for *
(1) mates
(2) water
(3) air
(4) sunlight
Answer:
Water.
Explanation:
OK for mates, it doesnt make sense cuz they are different animals, soo it's unlike for a lion to mate with a savanna dog.
For air, there is plenty, they arent trap in the same bubble (if you know what I mean)
And sunlight, its a large grassland and not alot of trees, so mostly likely they are in it all the time.
HELP!!! WILL GIVE BRAINLIEST!!!
Which of the following is an enample of thigmotropism?
Plant growing toward water
Plant turning away from light
Plant growing up a fence
Answer:
Thigmotropism is a plant turning away from something that it touches so i the its the second one
Explanation:
since it says the light is touching the flower and its trying to get away from i would say the second one
This is a DNA strand: TACGAA Which of the following is the
complementary DNA strand that would be made through Replication?
A. GCAUCC
B. ATGCYT
C. AUGCUU
D. GCATCC
The heart pumps oxygenated blood to the _____ and deoxygenated blood to the _____. A) body:liver B) body:lungs C) brain:lungs D) lungs:nose Eliminate
Answer:
The Answer is B) body:lungs
Explanation:
The body sends oxygenated blood (blood enriched with oxygen) to the body where oxygen is used and blood becomes deoxygenated. This blood when received in heart is pumped to Lungs where oxygen is taken up by blood through alveoli in our lungs. This way deoxygenated blood gets oxygenated and is pumped to the rest of the body and the cycle repeats.
All other options are wrong as blood can only get oxygenated at lungs through small air chambers called alveoli where oxygenation takes place.
Identify the macromolecules labeled as A, B, and C and explain their role within the context of the cell membrane (as presented in the picture).
Answer:
may we see the picture??
Explanation:
Label the items on the picture by dragging to correct answer to the correct letter below the picture.
A=
B=
C=
D=
E=
F=
G=
Answer:
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.
Explanation:
Name three effects on an ecosystem when biodiversity is lost
Answer:
At higher levels of extinction (41 to 60 percent of species), the impacts of species loss ranked with those of many other major drivers of environmental change, such as ozone pollution, acid deposition on forests, and nutrient pollution.
Explanation:
Answer:
There are a lot because without biodiversity there is no balance in the ecosystem.
Explanation:
species loss(some animals start dying)
environmental change(kind of like climate change)
Pollution(wild fires, pollution in waters and nutrients)
Hope this helps:)
Can someone help me list the following events?
Answer:
Explanation:
A: Rocky crust
B: Mohorovicic
C: outer mantel
D: inner mantel
E: Gutenbem
F :outer core
G :inner core
what apparatus should be used to measure the surface area to volume ratio of a potato cylinder? with explanation
Answer: Measuring scale/ruler.
Explanation: As it's a cylinder you would just need to find the diameter and the height. You can then use the formula V = πr²h and TSA = 2πr² + 2πrh.
Put the values in the form "surface area : volume" and you get your desired output.
Those things that help you to do the experiment are called apparatus.
The correct answer to the question is measuring scale/ruler.
The other apparatus we use also and these apparatus are as follows:-
Measuring tapesRulerTrigonometryD
As it's a cylinder you have to measure the diameter and the height after that you can then use the formula as:-
[tex]V = \pi r^2h\\ TSA = 2\pi r^2 + 2\pi rh.[/tex]
After measuring the vales place those values in the formula to get the area and volume.
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ch
Sickle cell is a disease where a person has abnormally shaped blood cells.
The reason for the abnormal shape of blood lies in the underlying genetic
code.
$
The sequence below shows a part of the genetic code for the HBB Gene.
This gene provides the instructions for making a protein called beta-globin.
The gene sequence is shown below. Use the sequence to create RNA and
the sequence of amino acids.
cha
Hemoglobin
DNA of HbA - hemoglobin in normal adults
DNA
3 to 5
C A C |G I G LG A C I G A LG G A
СТТСТС
RNA
Amino Acid
Answer:
mmmm science lip bite
Explanation:
Animals that have a complete
tube-like gut with two openings
Answer:
All mammals, like dogs, cats, and humans; reptiles, amphibians, fish, birds, and even insects.
Explanation:
All mammals, like dogs, cats, and humans; reptiles, amphibians, fish, birds, and even insects are the animals that have a complete tube-like gut with two openings. A system having a tube with two openings i.e. mouth and an anus is called tubular system. In this tubular system, the animals eat with one opening and the other opening is used for excretion of waste and nitrogenous materials from the body so that's why most of the animals have two openings.
Drag the structures to the appropriate boxes in order that oxygen would travel from the outside of your body to the blood stream
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
Answer:
trachea, pharynx, aveoli, bronchioles
Explanation:
Which of the following organisms cannot create their own food?
O Plants such as grasses
O Protists such as algae
O Animals such as humans
O Plants such as trees
Answer:
animals such as humans
Explanation:
Answer:
animals such as humans
Explanation:
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