Answer:
Certain prokaryotes, including some species of bacteria and Archaea, use anaerobic respiration.
Explanation:
For example, the group of Archaea called methanogens reduces carbon dioxide to methane to oxidize NADH. These microorganisms are found in soil and in the digestive tracts of ruminants, such as cows and sheep.
Which of these factors make hydrogen fuel cells a better option than burning fossil fuels?
Hydrogen fuel cells have a higher energy efficiency.
Hydrogen fuel cells create less pollution.
Burning fossil fuels relies on outdated devices and technology.
Hydrogen is the most abundant element in the universe.
Hydrogen fuel cells are more expensive than fossil fuels.
Hydrogen fuel cells have a higher energy efficiency.
Hydrogen fuel cells create less pollution
i got it right on the assignment
The use of hydrogen fuel cells is preferable to using fossil fuels since they are more environmentally friendly and have a higher energy efficiency. So, the correct options are A and B.
What is Hydrogen fuel cell?The use of hydrogen fuel cells is preferable to using fossil fuels since they are more environmentally friendly and have a higher energy efficiency.
Because they transform the chemical energy of hydrogen and oxygen into electricity with an efficiency of about 50–60% as opposed to the 30–40% of burning fossil fuels, hydrogen fuel cells are more energy efficient than burning fossil fuels. This increases efficiency and reduces waste by converting more of the fuel's stored energy into usable work.
Burning fossil fuels produces a variety of pollutants, including carbon dioxide, nitrogen oxides, sulphur dioxide, and water, whereas using hydrogen fuel cells only produces heat and water as byproducts.
Therefore, the correct options are A and B.
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Can you guys please help me❤️
Answer:
C, hot weather is external
Explanation:
Answer:
I think that it is option C
Two males in the Ibex population competing for mating rights will fight. These two organisms are displaying which of the following social behaviors?
A.) Cooperation
B.) Altruism
C.) Social Hierarchy
D.) Agonistic
Answer:D
Explanation: it is fighting for a mate, it could lead to hierarchical classification after but this is solely for mating rights so D agonistic
What happens to the pyruvate that enters the Krebs cycle?
Question # 9
Multiple Choice
Which of the following best characterizes the global role of photosynthesis in relation to global warming?
reproduction
circulation
respiration
digestion
why don't birds get electrocuted when they land on an electric wire?
please help me out :-)
Answer:
Electricity flows by the movement of electrons through conductors. If a bird perches on a wire with two feet there is no motivation to go through the birds' body so electrons choose the path of least resistance and continue to flow along the wire.
Explanation:
Answer:
Because there not grounded
Explanation:
The MA of a lever is 4. If you have to lift the object up 20 cm,
how far will you have to pull down?
Answer:
jayfeather friend me
Explanation:
Answer: The mechanical advantage of a machine is 4. ... Mechanical advantage MA is the ratio of output (generated by the machine) force to input (applied to the machine) force. So MA = 4 means that for example if you apply 100 N then your machine will multiply that force and generate 400 N.
why are fossil fuels supplies limited
Answer: The coal, oil and natural gas we are consuming now are the remnants of plants, trees and animals that were living hundreds of millions of years ago. There is no way to replace them, as conditions on Earth are much different now.
Explanation: Mines and wells are being depleted much faster than they were a hundred years ago when demand was much less-- fewer people, fewer cars, fewer planes. . . and people believed there was an endless supply. Many of those mines and oil wells are now empty.
The _____________ is a gel-like fluid that fills plant and animal cells. It holds the organelles in place and gives each cell its shape. * 1 point
Answer:
cytoplasm
Explanation:
The cytoplasm's job is to hold organelles in place and it is a jelly-like substance.
All of the following steps are part of both photosynthesis and cellular respiration except
О
A ATP production.
O
B. electron transport
C. glycolysis.
D. formation of H+ gradient
Answer:
C. glycolysis.
Explanation:
Hope this will help
Is a Heterotroph a araebacteria or a eubacteria
A silent mutation is one in which:
C. The nucleotide sequencer does not change wether it is the Original DNA and Mutation DNA
A. The Amino Acid chain is not changed even though the nucleotides sequence on the Original
DNA is different from the Mutation DNA.
O B. The Amino Acid chain is different when produced by the Mutation DNA rather than the
Original DNA.
O D. The Mutation mRNA is different that the Original mRNA
According to Darwin, "Organisms produce more offspring_____”
A. than will survive to reproduce
B.than plants do
C. because they want to
D. None are correct
Diversity among members of a species is important because diversity
a
increases the chances of survival under changing conditions.
b
ensures high levels of competition.
c
increases the available ecosystem resources.
d
ensures the variety of reproductive methods for a species.
Diversity among members of a species is important because diversity increases the chances of survival under changing conditions.
If a disease spreads throughout a species, the species with genetic diversity will survive. If the species does not have genetic diversity, they will be wiped out by the disease.
11. How can the rate of an infectious disease be drastically reduced?
a By taking medication daily
b. By preventing transmission between people
C. By wearing clean clothes daily
d. By performing dental hygiene three times daily
Answer:
b
Explanation:
trust trust trust trust
To locate positions on Earth's surface, scientists use units called
A pixels
B keys
C. contours
D. degrees
Answer:
D. Degrees
Explanation:
Answer:
Degrees
Explanation:
Degrees of latitude identify far north or south. Degrees of Longitude locate far east or west.
3. How far does a secondary wave travel in 10 minutes?
Answer:
Explanation:
1 to 8 km/sec- use this to work out 10 minutes
Answer:
Hi There!
Explanation:
1 to 8 km/sec
S-waves are transverse waves. Even though they are slower than P-waves, the S-waves move quickly. Typical S-wave propagation speeds are on the order of 1 to 8 km/sec. The lower value corresponds to the wave speed in loose, unconsolidated sediment, the higher value is near the base of Earth's mantle.
This serves as a quick energy source.
a. carbohydrate.
b. nucleic acid
c. lipid.
d. protein.
Margaret has detached earlobes (a) , which is a recessive trait. If she wanted ALL of her children to have attached ears (A), what type of man would she need to marry in order to give her the best chances?
A. A man with the genotype AA
B. A man with the genotype aa
C. A man with lobed ears like hers
D. A man with the genotype Aa
Margaret can have all her children with attached earlobes only if she marry a man with AA dominant genotype.
As given,
Margaret has detached earlobes (a) which is a recessive trait If she wanted all of her children to have attached ears (A) if she have to marry a man with the dominant trait
Punnett' square:
A A
a Aa Aa
a Aa Aa
[Aa] are the genotype with attached earlobes [dominant genotype]
Therefore, Margaret can have all her children with attached earlobes only if she marry a man with AA dominant genotype.
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An _______ is a beach that prodject like a finger out into the water
Poison dart frogs live in the rainforest. They produce a poison by eating toxic fire ants. The only known predator is a snake, Liophis epinephelus. Which is most likely a density-independent factor that affects the poison dart population in the rainforest? clear cutting the rainforest limited food source susceptibility to disease increase in population of Liophis epinephelus
Answer:
Clear-cutting the rainforest
Explanation:
Density-independent factors of a population are factors that limit the size of a population irrespective of the density of the population.
A limited food source can only be defined by the size of a population, diseases will spread faster in high-density populations, and an increase in the population of a predator will cause a decrease in the population size of the predator's prey.
Clear-cutting of the rainforest means automatic destruction of the habitat of the poison dart frog's population, no matter the population size. Hence, clear-cutting of the rainforest is considered as the density-independent factor in this case.
Answer:
A.) clear cutting the rainforest
Explanation:
got it right on edge 2021
Which of the following is not a function of proteins?
a. gives structure to the cell.
b. forms the cell membrane.
c. composes muscle and organ tissue.
d. controls rates of chemical reactions.
What is the process that the tree uses to get its energy called?Does this process directly or indirectly affect the energy needs of animals such as the ostrich?
Photosynthesis is the process by which trees and all other flora (plants) get energy. And I think that it directly helps animals, such as ostriches, by providing food and O2 (oxygen). Without oxygen, humans and animals couldn't survive because there is too much CO2 (carbon dioxide) in the air (humans get this thing called carbon dioxide poisoning, which can kill you eventually). Also, without food, we would all starve to death.
Hope this helps! :)
Plants use a process called photosynthesis to transform solar energy into their own energy.
What is photosynthesis?Plants and other living things employ a process called photosynthesis to transform light energy into chemical energy that can then be released through cellular respiration to power the organism's activities.
Solar or radiant energy is converted into chemical energy during photosynthesis. The rate of photosynthesis has a direct impact on the productivity of agricultural crops.
It gives the atmosphere the oxygen that all living things need. It keeps the ecosystem's oxygen and carbon dioxide levels in check.
The process by which leaves take in carbon dioxide and water and use the power of the sun to transform them into chemical compounds like sugars that feed the tree is known as photosynthesis.
Thus, through the process of photosynthesis, tree uses to get its energy.
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According to the passage, which of the following best describes genetic engineering?
A
useless
B
destructive
с
impossible
D
innovative
Answer:
innovative
Explanation:
By correcting genetic flaws, gene therapy aims to prevent or treat hereditary illnesses. The goal of genetic engineering is to alter the genes to give a creature new, enhanced skills. Thus, option D is correct.
What is the role of genetic engineering?The direct altering of an organism's genome through biotechnology is referred to as genetic engineering, sometimes known as genetic modification.
It is a group of scientific techniques used to change the genetic makeup of cells, including the movement of genes within and between species, to produce more advantageous or altogether different creatures.
Applications for genetic engineering include technology, agriculture, and scientific research.
Genetic engineering has been used on plants to enhance the hardiness, nutritive content, and growth rate of crops like potatoes, tomatoes, and rice.
Therefore, innovative best describes genetic engineering.
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Is wood a living thing or non living? And why?
Answer:
wood is non living
Explanation:
it was once living because it came from a tree
Which illustration depicts homologous chromosomes?
Will give brainliest.
we should not touch and test acid. Give reason why?
Answer:
because the toxic of it can burn your skin the toxic of acid is very dangerous so we couldn't touch it if we touch it our skin or your skin will burn or turn it into ashes
What is the relationship between changing CO2 emissions and CO2 concentration?
Answer:
When the carbon dioxide concentration goes up, temperature goes up. When the carbon dioxide concentration goes down, temperature goes down.
Explanation:
Which of the following methods would provide the most accurate information for students collecting data about local attitudes concerning the use of alternative fuels for automobiles?
a. Track prices at nearby gas stations
b. Take an opinion poll of drivers
c. Study newspaper articles
d. Listen to speeches given by politicians
B. take an opinion poll of drivers.
Answer:b
Explanation:
Because it’s the only one where you get opinions from people about it.
please help asap....
Answer:
the second one
Explanation:
the second one