What is the greenhouse effect?
Answers
Explanation:
The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. The absorbed energy warms the atmosphere and the surface of the Earth.
Related Questions
Explain why organisms may rely on asexual reproduction:
Answers
Asexual reproduction has many benefits, including being fast, easy, and producing a lot of offspring. So, organisms that have low chances of surviving as babies may need to make a lot of offspring given that only 10% of the offspring will survive. Also, some organisms may not be able to mate with another of their species, or don't even have genders! A cactus, for example, can form buds and reproduce without a partner.
Plants can reproduce asexually through vegetative reproduction. New individuals develop in this way of reproduction even though no seeds or spores are produced. Growing new plants from rhizomes or stolons, like in the case of the strawberry plant, is an example of vegetative reproduction.
What organisms may rely on asexual reproduction?When the circumstances are favorable, the population can grow quickly. You only need one parent. Since you don't require a partner, it is more time and energy efficient. Compared to sexual reproduction, it is quicker.
Bacteria and other single-celled creatures reproduce asexually. Many plants and even some animals are among complex creatures. These include starfish, komodo dragons, and bananas. Despite this, up to 99% of complex organisms at least occasionally reproduce sexually.
Therefore, Numerous creatures, such as bacteria, plants, and even reptiles, do engage in asexual reproduction. All living things, however, reproduce sexually.
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during inhalation, _____muscles contract to elevate the ribs. during forced exhalation, ______muscles contract to depress the ribs
1)internal intercostals; external intercostals
2)rectus abdominis; external obliques
3)diaphragm; transverse abdominis
4)transverse abdominis; diaphragm
5)external intercostals; internal intercostals
.
Answers
During inhalation, external intercostal muscles contract to elevate the ribs. During forced exhalation, internal intercostal muscles contract to depress the ribs.
Explanation:
Inhalation is the process of breathing in. It involves the contraction of the diaphragm and intercostal muscles. The external intercostal muscles are located between the ribs, and they help to elevate the ribs during inhalation. The diaphragm contracts and flattens during inhalation, increasing the volume of the thoracic cavity and reducing pressure in the lungs. Forced exhalation is the process of breathing out with effort, and it involves the contraction of muscles to reduce the volume of the thoracic cavity. The internal intercostal muscles are located deeper between the ribs, and they help to depress the ribs during forced exhalation. The transverse abdominis muscle is also involved in forced exhalation, as it contracts to compress the abdomen and push the diaphragm upward.
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Identify the two organelles that are interacting based on the description. this component provides rigid structure and support to the outside of a cell while this substance fills inside the cell.
Answers
The two organelles that are interacting based on the description are:
Rough endoplasmic reticulumGolgi complexThis is because the rough endoplasmic reticulum and the Golgi complex interact to produce and direct proteins and lipids within the cell. This is achieved because the RER contains ribosomes and manufactures proteins that the Golgi complex modifies, stores and transports to their destination.
The cell wall or cytoskeletonThe cell wall or cytoskeleton, this component provides rigid structure and support to the outside of a cell while this substance fills inside the cell.
The cell wall or cytoskeleton is a structure composed of different proteins and carbohydrates that surrounds the cytoplasm of most eukaryotic cells. This outer wall is a barrier to the entry of pathogens, as well as to the exit of cellular contents.
The cytoskeleton is a complex structure within the cell that contains filaments, such as:
MicrotubulesMicrofilamentsIntermediate filamentsThese structures are responsible for giving the cell its shape and mobility, as well as maintaining the organization of the cell's internal components.
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Most pneumonia infections are caused by a virus or bacteria. What characteristic could scientist use to distinguish an infection caused by bacteria from an infection caused by a virus? Group of answer choices The bacteria would grow by itself outside the person. The virus would have DNA. The bacteria would make another person sick. The virus would have proteins.
Answers
Answer:
The bacteria would grow by itself outside the person
Explanation:
The bacteria would grow by itself outside the person. - this is correct. Bacteria are independent organisms that do not need other cells to replicate. However, viruses require the cell's machinery to divide and cannot survive independently
The virus would have DNA. - Both bacteria and viruses have DNA (or the virus might have RNA)
The bacteria would make another person sick. - Both viruses and bacteria could make another person sick
The virus would have proteins - Both viruses and bacteria have proteins
Which pair of scientific fields would be most useful in investigating human
activities and their impact on the environment?
A. Meteorology and hydrology
B. Anthropology and sociology
C. Physics and chemistry
D. Geophysics and geography
Answers
Hope that helps. :)
what is the difference in height between low tide and high tide on wednesday
Answers
Answer:
The high tide is an ocean wave rising regularly and the low tide is the ocean wave falling regularly.
Explanation:
(Not sure what you meant by "on Wednesday".)
How does heat move across a continent as a mass of air?
Answers
An air mass is a large volume of air in the atmosphere that is mostly uniform in temperature and moisture. Air masses can extend thousands of kilometers across the surface of the Earth, and can reach from ground level to the stratosphere—16 kilometers (10 miles) into the atmosphere.
Air masses form over large surfaces with uniform temperatures and humidity, called source regions. Low wind speeds let air remain stationary long enough to take on the features of the source region, such as heat or cold. When winds move air masses, they carry their weather conditions from the source region to a new region. When the air mass reaches a new region, it might clash with another air mass that has a different temperature and humidity. This can create a severe storm.
According to the picture above, which of the following species are most closely related?
A and E
B and D
D and E
A and B
Answers
Pilobolus can be grown in a controlled room with ____________ at a distinct location. After sporangia are discharged, their location could easily be determined relative to ____________
Answers
Answer:
The words which complete both sentences are:
a single light sourcethe location of the light sourceExplanation:
The complete sentence, thus, reads:
Pilobolus can be grown in a controlled room with a single light source
at a distinct location. After sporangia are discharged, their location could easily be determined relative to the location of the light source.
Pilobolus is a type of fungi that only grows on the dung of animals that only eat plant.
Cheers!
How are the processes of DNA replication and mRNA transcription different?
Answers
Answer:
The process of DNA replication involves the duplication of the entire DNA molecule, while mRNA transcription involves the synthesis of a single-stranded RNA molecule that is complementary to a portion of the DNA molecule. Additionally, DNA replication occurs in the nucleus of eukaryotic cells, while mRNA transcription occurs in the nucleus (in eukaryotes) and the cytoplasm (in both prokaryotes and eukaryotes).
Explanation:
James is working with the lac operon of Escherichia coli (E. Coli). He places the bacteria on a plate of growth media. The lac Operon of E. Coli is shown. Based on the current understanding of this operon, which hypothesis would be useful for James to test?
Answers
Answer:
A.
Explanation:
Lac Operon is defined as an operon that is used by E.coli for transporting and metabolizing lactose.
Allolactose is a disaccharide like lactose, that binds to lac repressor and restrict its binding with DNA. It triggers expression of a operon or gene.
So, adding allolactose to the bacterial growth media, block the activity of lac repressor and trigger the activity of bacteria to metabolize the sugar lactose.
Hence, the correct answer is "A."
Based on the current understanding of this operon hypothesis would be useful for James to test addition of all lactose to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose. Thus, option A is correct.
What is the mode of reproduction of bacteria?The bacteria reproduces through the process of asexual reproduction and the amoeba reproduces through the process of binary fission. Reproduction is defined as the process carried out by the living organisms and during the process of reproduction the living organisms produces their own young ones and feed them. Reproduction is the supreme quality of living things.
There are two types of reproduction and these are sexual and asexual reproduction. The process of reproduction in which two parents are involved is said to be sexual mode of reproduction and the process of reproduction in which only single parent is involved in known as asexual mode of reproduction. The example of asexual reproduction are budding, fragmentation, spore formation, and binary fission.
Therefore, Based on the current understanding of this operon hypothesis would be useful for James to test addition of all lactose to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose. Thus, option A is correct.
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What is the water table?
Answers
Answer:
C: The top of a saturated aquifer
Explanation:
The water table is the upper surface of the zone of saturation. This zone of saturation is where pores and fractures of the ground get saturated with water. It can also be simply explained as, the upper level, below which the ground is saturated.
what is the reaction of dehydration
Answers
Answer:
Explanation: people get headaches, dry skin and die
Drug-resistant tuberculosis is a major health issue in many countries. Treatment for these resistant forms of bacteria is longer and requires more expensive antibiotics. Scientists attribute this to natural selection. Under these circumstances, what does natural selection mean?
A. The tuberculosis genes mutated to avoid being killed by the antiblotic
B. Tuberculosis bacteria discovered a way to avoid these particular antibilotics.
C. An environment was created in which the tuberculosis bacterium carrying the antibiotic-resistant genes could reproduce.
D. The antibiotic changed the DNA of the tuberculosis bacterium.
Answers
Unlike animal cells, plant cells contains —
A.
mitochondria.
B.
few nuclear pores in their nucleus.
C.
a large vacuole for water storage.
D.
centrioles.
Answers
Read the following passage from the Biology Department at University of California, Berkeley.
Northern elephant seals have reduced genetic variation because hunting by humans reduced their population size to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000, but their genes still carry the marks of this near extinction: they have much less genetic variation than a population of southern elephant seals that was not hunted as intensely.
Which of the following best describes how the population has evolved?
The population has not evolved because there was no change in allele frequencies.
The population has not evolved because it has grown.
The population has evolved because it has grown.
The population has evolved because there was a change in allele frequencies.
Answers
Answer:
the last one sorry if i'm wrong
Explanation:
According to the passage from the Biology Department at University of California, Berkeley.Northern elephant seals have reduced genetic variation because hunting by humans reduced their population size to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000, but their genes still carry the marks of this near extinction: they have much less genetic variation than a population of southern elephant seals that was not hunted as intensely.
The best option that describes is" the population has not evolved because there was no change in allele frequencies.Thus, option B is correct.
What is population?The term population reffered to the total number of people living in a particular given area.The population of an organism can't survive if it exceeds it's carrying capacity.
The causes that affect population growth animals that if there are more plants than usual in area, populations of animals that eat that plant may increase.
If animal population increases the population that eat that animal might also increase.
The effects of animals population can be dangerous and when population exceed the carrying capacity of their environment, animal suffer of malnutrition and disease.
When predictors became scarce due to over population, the weekar species of animal start or die in other ways .
The accurate description of the growth of a natural animal population is limited by environmental factors.
Therefore,The best option that describes is" the population has not evolved because there was no change in allele frequencies.Thus, option B is correct.
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PLEASE ANSWER ASAP
Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study?
Question 6 options:
If the cage for the chickens is larger, they will produce more eggs.
If more eggs are produced by the chickens, they will lose more weight.
If there is more protein in the feed, then more eggs are produced.
If chickens receive more hours of light, then they will produce more eggs.
Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study
If the cage for the chickens is larger, they will produce more eggs.
If more eggs are produced by the chickens, they will lose more weight.
If there is more protein in the feed, then more eggs are produced.
If chickens receive more hours of light, then they will produce more eggs.
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.
Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.
What is the independent variable in this experiment?
Question 7 options:
amount of fertilizer
number of algal cells
hours of daylight
amount of water
Question 8 (2 points)
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.
Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.
What is the dependent variable in this experiment?
Question 8 options:
size of beakers
number of algal cells
amount of fertilizer
hours of daylight
Question 9 (2 points)
Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.
Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.
Which of the following is the control group for the experiment?
Question 9 options:
Beaker D
Beaker C
Beaker E
Beaker A
Beaker B
Question 10 (2 points)
To focus a specimen, it is best to start with which objective:
Question 10 options:
High power
Low power
Scanning
Ocular
On the image, which number represents the coarse adjustment knob?
1
2
5
10
What important feature is missing from this line graph representing sea level change between 1870 And 1990
X axis label
a title
Y axis label
appropriately spaced scales
Answers
Answer:
I know that for 6 is A) for 7) I'm between A) and C) for 8 it's B) 9 I don't understand, but the control group is whatever is kept the same and you're not testing on it and the rest I don't know
for a prokaryotic gene, basal transcription is defined as
Answers
Basal transcription is defined as the process by which RNA polymerase binds to the DNA strand to initiate transcription in the absence of any enhancers, activators or other regulators of transcription for prokaryotic genes. In other words, basal transcription allows the binding of RNA polymerase to the promoter sequence, which is a specific sequence of DNA.
It enables RNA polymerase to initiate transcription of the DNA to RNA sequence. The promoter of a gene is the site at which the RNA polymerase binds to initiate the transcription process. The promoter sequence of a prokaryotic gene usually comprises two elements. The -10 element and the -35 element are these elements. The TATA box is another vital component of the promoter sequence. The core promoter is the area where the TATA box and the transcription initiation site are located. The RNA polymerase and transcription factors bind to the core promoter, which allows transcription to occur.
The basal transcription machinery is required for transcription to occur. The basal transcription machinery comprises RNA polymerase, transcription factors, and other components that assemble at the core promoter.The initiation of transcription occurs when RNA polymerase binds to the DNA at the core promoter and begins to transcribe mRNA from the DNA. The initiation of transcription occurs at the +1 site in prokaryotes. Therefore, the process of basal transcription is essential for the transcription of prokaryotic genes.
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HELP ME PLEASE 10 pts and brainliest!
Answers
Answer:
c is it I think
Explanation:
Identity the stomata components. record your answer under "" slide 2"" on your lab report
Answers
Stomata are involved in gas interchange and transpiration. The components of stomata are the pore, the guard cells, subsidiary cells, and the stomatic chamber.
What are stomata?On the leafs' surfaces, there are small pores that regulate gas interchange and transpiration. These openings are the Stomata.
Gas interchange ⇒ CO₂ gets into the plant, and O₂ leaves it Transpiration process ⇒ water expel
Stomata opening and closure depend on water and CO₂ concentration inside the plant.
These pores are surrounded by two kidney-shaped cells called Guard cells. They expand or contract according to the plants' needs, causing the stomata to open or close.
The space left between these guard cells is the pore.
Other cells that vary in shape and number are surrounding the guard cells and are functionally associated with them. These are the subsidiary cells.
The pore is connected to a wide intercellular space inside the leaves called the stomatic chamber.
According to this framework, the components of the stomata are,
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Answer:
if this is the slides that you had then the answers for them are
a. guard cells
b. stoma
Explanation:
Had these questions in school, and had the answers in my lessons, you just gotta read carefully.
Have a good day!!
When two monomers come together to make a polymer, a molecule of what is released?
Answers
Hope that helped! :)
true or false? a codon is a group of three bases that can specify more than one amino acid.view available hint(s)for part atrue or false? a codon is a group of three bases that can specify more than one amino acid.truefalse
Answers
It is true that a Codon is a trio of nucleotides that can designate many amino acids. Four nucleotides make up the language of DNA and RNA molecules, while 20 amino acids make up the language of protein molecules.
Do three codons equal one amino acid?This proved that the coding unit is made up of three nucleotides. A codon is a triplet of nucleotides that codes for an amino acid. One amino acid is encoded by each set of three nucleotides.
A codon may specify multiple amino acids.Even within a single gene, a codon can spontaneously evolve to code for two different amino acids, with the choice of the inserted amino acid being determined by an RNA structure in the 3′-untranslated region.
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If the temperature is 40°F and the wind is blowing at 10 mph, what is the WET?
Answers
The WET when the temperature is 40°F and the wind is blowing at 10 mph is approximately 71.76°F.
What is the WET?The Wind Chill Equivalent Temperature (WET) is a measure of how the temperature feels to the human body when the effects of wind are taken into account.
The formula to calculate the WET takes into account both temperature and wind speed, and the result gives an estimate of the lowest temperature that a person would feel if exposed to those conditions.
WET = 35.74 + 0.6215 * T - 35.75 * V^0.16 + 0.4275 * T * V^0.16
where
T is the temperature in Fahrenheit and
V is the wind speed in miles per hour.
Plugging in the values from your question, we have:
WET = 35.74 + 0.6215 * 40 - 35.75 * 10^0.16 + 0.4275 * 40 * 10^0.16
WET = 35.74 + 24.86 - 7.72 + 17.88
WET = 71.76
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Which happens as part of the convection cycle in Earth's atmosphere?
Answers
The correct answer is: Hot, less-dense air rises.
1. Which of the following is an example of sexual reproduction? *
a. a cell from a male trout joins a cell from a female trout
b. budding of a hydra
c. bacteria undergoing binary fission
d. fragmentation in planarian worms
Answers
Answer:
A
Explanation:
And keep in mind that binary fission is asexual which is the opposite of sexual reproduction
Under the electron microscope, the rough ER appears as flattened sacs covered with bumps. Those bumps are actually what?
Answers
The bumps seen on the surface of the rough endoplasmic reticulum (ER) under the electron microscope are ribosomes.
What is the role of the rough ER?The rough endoplasmic reticulum (ER) is a specialized organelle in eukaryotic cells that is responsible for several important cellular functions. The rough ER is characterized by its rough appearance due to the presence of ribosomes attached to its surface.
The ribosomes on the rough ER are responsible for protein synthesis, and the rough ER plays an important role in processing and transporting these newly synthesized proteins to other parts of the cell or to be secreted outside of the cell.
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help me with science work
Answers
Answer:
It would be B because we can see that he is going at a constant rate away form his house.
Explanation:
Why are barriers sometimes placed on trade?
Answers
Answer:
Both tariffs and subsidies raise the price of foreign goods relative to domestic goods, which reduces imports. Barriers to trade are often called “protection” because their stated purpose is to shield or advance particular industries or segments of an economy.
Explanation:
Green plants and algae make their own food through photosynthesis. What is photosynthesis?.
Answers
Photosynthesis: the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
The E-site A) is found on the RNA polymerase enzyme. B) is responsible for the release of the tRNA. C) is found on the 35S polysome. D) is the aminoacyl site on the ribosome. E) is another name for anticodon.
Answers
Answer:
B) is responsible for the release of the tRNA.
Explanation:
A transfer ribonucleic acid (tRNA) is an RNA molecule that connects a particular triplet of nucleotides or 'codon' of a messenger RNA (mRNA) to a particular amino acid during protein synthesis (translation) in the ribosomes. In a cell, tRNAs can be found in three different forms: aminoacyl-tRNAs, peptidyl-tRNAs, or deacylated tRNAs. Moreover, during translation, the tRNA binds to the ribosome at three different sites. The E-site (E for exit) refers to the final binding site for deacylated tRNAs in the ribosomes (i.e., before their dissociation from the ribosomes) during protein synthesis. The first binding site for tRNA in the ribosome is the A-site (A for aminoacyl), while the second binding site is called P-site (P for peptidyl). These three sites are oriented in inverse sense (5' to 3' E-P-A) with respect to the mRNA.