Answer:
For mutations to affect an organism's descendants, they must: 1) occur in cells that produce the next generation, and 2) affect the hereditary material. Ultimately, the interplay between inherited mutations and environmental pressures generates diversity among species
Which option describes a step in designing an experimental investigation?
O A. Identifying the variables that will be controlled for all experimental groups B. Writing a procedure that prevents other scientists from repeating the results C. Making sure that the hypothesis will be supported and not refuted O D. Collecting each piece of data in a different way so that there is more variety
Answer:
a
Explanation:
because i studied like tht
Answer:
A. identifying the variables that will be controlled for all experimental groups
Explanation:
it is ;)
Which of the following is NOT a prokaryote?
A. Fungi
B. E. Coli
C. Archaea
Answer:
Fungi
Explanation:
it is a eukaryote
Which is not a prokaryote?
In the given options, Saccharomyces is not a prokaryote as it is a fungus and hence a eukaryote. They have a well-defined nucleus and membrane-bound nucleus.
Which statement best describes how radiation causes mutations?(1 point) Responses Radiation triggers DNA replication, and the cell produces two identical DNA molecules. Radiation triggers DNA replication, and the cell produces two identical DNA molecules. Radiation breaks down DNA bonds, and the bonds remain broken. Radiation breaks down DNA bonds, and the bonds remain broken. Radiation breaks down DNA bonds, and the cell repairs the bonds incorrectly. Radiation breaks down DNA bonds, and the cell repairs the bonds incorrectly. Radiation triggers DNA replication and splits the complementary base pairs.
The statement that describes how radiation causes mutation is as follows: Radiation breaks down DNA bonds, and the cell repairs the bonds incorrectly (option C).
What is mutation?Mutation is any heritable change of the base-pair sequence of genetic material i.e. the alteration in the DNA sequence of a genetic material caused by errors during DNA replication, mutagens etc.
Radiation is one of the major causes of mutation. Ionizing radiation directly affects DNA structure by inducing DNA breaks or breaking of DNA bonds.
The DNA structure is directly responsible for the function as a storage molecule. Hence, any alteration in the DNA structure will damage it.
However, the cell attempts to repair it but does so incorrectly resulting in the production of a mutated DNA.
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How can plate tectonics contribute to the formation of gypsum deposits?
Gypsum deposits are formed as a result of plate tectonics. Tectonic movement can raise a shallow sea, which causes water to evaporate.
The correct option is D.
Where does gypsum come from?A fluxing agent, fertilizer, filler in the paper as well as textiles, cement are among the uses for gypsum. For usage as plaster of Paris and as construction materials in plaster, Keene's cement, board products, tiles, and blocks, around three-fourths of the entire production is calcined.
Give a brief definition of tectonic plates:An enormous, unevenly shaped slab of solid rock known as a tectonic plate—also known as a lithospheric plate—is typically made up of both oceanic and continental lithosphere. The Pacific and Antarctic Plates are two of the largest, however plate sizes can range from a few hundred through thousands of kilometers broad.
How did the term plate tectonics come about?According to the idea of plate tectonics, the mantle—the inner, rocky layer above the planet's core—is covered by enormous, solid rock slabs that are broken up into "plates" that move over the planet's crust.
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pleasseeeeeeeeeeeeee helppppp 12 points
The diversity of algal species is calculate for a coastal area before and after an oil spill
IV:
DV:
CV:
The diversity of algal species is calculated for a coastal area before and after an oil spill has independent water (before and after the oil disaster) and dependent-algal species diversity.
What is algal species diversity?The diversity of algae is taken into account at the levels of species richness, higher taxonomic ranks, the variety of ecosystems algae dominate, and their functional significance in the processes they mediate.Primarily aquatic - most algae live in water. In freshwater ponds, streams, lakes, brackish rivers, and oceans, they are typically found as plankton. Many aquatic animals eat plankton as food. Phytoplankton is the drifting algae.They are essential to aquatic habitats because they provide the food web's energy foundation for all aquatic creatures. Algae are autotrophic organisms that use photosynthesis to turn water and carbon dioxide into sugar.
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HELP PLEASE! NOW! which pollutant had the least effect on plant growth?
Answer:
Pollutant A
Explanation:
It's not clear image but the bar graph shows that bar A is the smallest.
Which statement BEST describes an advantage that sexual reproduction has compared to asexual reproduction?
A There is a lower mutation rate in organisms that reproduce sexually.
B Less energy expenditure is required for sexual reproduction.
C There is more genetic variation of offspring as a result of sexual reproduction.
D Sexual reproduction takes place quickly and efficiently.
how do humans actions negatively impact water quality that can also impact drinking water
Answer:
They include sedimentation, pollution, climate change, deforestation, landscape changes, and urban growth.
Explanation:
how different organ systems works in Harmony so that an organisms is able to survive
What would the habitat of a plant
include?
A. the area around the plant above and below the
soil
B. 1 meter beyond where its roots extend
C. only the actual plant itself
Answer:
A
Explanation:
a habitat is simply the specific area something lives
The habitat of a plant would include the area around the plant above and below the soil. Therefore, option (A) is correct.
What is the habitat of plant?A plant's habitat consists of the region immediately surrounding the plant as well as the soil, water, air, and any other living species that interact with the plant. Because it encompasses the root system as well as the immediate vicinity of the plant, the area around the plant, both above and below the soil, is particularly significant due to the fact that it can have a significant influence on the amount of nutrients, water, and other resources that are readily available.
Additionally, the presence of other plants, animals, and microorganisms in the surrounding area can also have an effect on the habitat of the plant. This is because these other organisms can provide competition for resources, pollinators for reproduction, and predators or herbivores that may feed on the plant.
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How are the equations for photosynthesis and cellular respiration related?
answer this question I will give those crown thingys and
please answer simplest way as possible
Answer:
In the case of cellular respiration, the photosynthesis equation is opposite. The reactants and products are modified in both processes.
Hope it helps! :)
What is the importance of
wetlands?
A. They have a high carrying capacity.
B. They act as natural water purification.
C. They make creating new habitats easy.
A. Wetlands have a high carrying capacity, meaning they can support a large number of species. This is due to the diversity of habitats within the wetland, providing numerous sources of food, shelter, and protection.
What is diversity?Diversity is the inclusion of individuals from different backgrounds, cultures, and experiences, including but not limited to race, ethnicity, gender, sexual orientation, age, language, physical and mental ability, religious beliefs, political beliefs, and socio-economic status.
B. Wetlands act as natural water purification systems, removing pollutants from water and providing a healthy environment for aquatic organisms. This helps to maintain a healthy balance between human activity and the environment.
C. Wetlands make creating new habitats easy, since they are naturally rich in biodiversity. This makes it possible for species to easily take up residence in the wetland, providing them with the resources they need to survive and thrive.
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Hi I need help with this question please and thank u
a. The results of the cross between the fruit flies will be:
Rr, Rr, Rr and Rr.
what are all the proteins of thin filaments.
Answer:
Myofilament
Nebulin
Tropomodulin
SYNPO2
Which of the following is the best description of the music Mussorgsky wrote to accompany the Gnome?
A. Dark, choppy, dynamic contrasts
B. Long flowing phrases
Answer: A. Dark, choppy, dynamic contrasts
C6H1206 +6026H20 + 6C02 is an example of
A. synthesis
B. catabolism
C. anabolism
Describe the subunits and structures of the three types of cytoskeletal fibers and give at least one function of each.
Subunits and structures of the three types of cytoskeletal fibers are microfilaments, microtubules, and intermediate filaments.
Microfilaments help to create the forces used in cellular contraction and basic cell movements. They are also involved in cellular movement that includes contraction and cytokinesis .
Microtubules are involved in many functions that include assembly of mitotic spindle, in dividing cells, or axon extension inside neurons. They are also responsible for determining shape of the cell .
Intermediate filaments are involved in structural role by providing mechanical strength to cells and tissues. They are basically involved in the movement of the cell and generally found in hair , scales and finger nails .
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The structure of ATP is adenine, deoxyribose, and 3 phosphates. The energy used to do cellular work is harnessed by breaking the high energy deoxyribose bonds. true or false
It is false that the energy used to do cellular work is harnessed by breaking the high energy deoxyribose bonds.
What is ATP?ATP meaning adenosine triphosphate is a biological molecule is that is used as a source of energy in cellular reactions.
ATP is an energy carrier and the only usable form of energy by living cells.
ATP is made up of the following three components;
Adenine baseDeoxyribose sugar3 phosphate groupsEnergy is stored by the ATP molecule when a phosphate group is added to the ADP while energy is released for use when a phosphate bond is broken to form ADP.
The above explanation invalidates the statement that energy is released by the breaking of high energy deoxyribose bonds.
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what is being done to address the decreased air quality and smog problem? and what can be done? (in your own words please) *science*
There are numerous ways through which we can reduce the smog problem like turning the engine of car off, not burning garbage in open.
What is smog and how come it be reduced?Whenever we go out in winters in the early morning we can see the eyes not able to see things far , because of the opaque weather and whitish too , called fog.Fog is completely different from smog and have different causes and effects also.Smog is the pollution cause in the nature due human activities majorly that reduces the air visibility.We can try to reduce smog by preventing burning garbage in open, by planting more and more trees.Nitrogen oxide is the main component of smog which is harmful to health.To know more about smog visit:
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What is insomnia? What are its symptoms? :-;
Answer:
Insomnia is a common sleep disorder that can make it hard to fall asleep, hard to stay asleep, or cause you to wake up too early and not be able to get back to sleep. You may still feel tired when you wake up.
Explanation:
hope this helps (❁´◡`❁)
insomnia is a common sleep disorder that can make it hard to fall asleep, hard to stay asleep, or cause you to wake up too early and not be able to get back to sleep. You may still feel tired when you wake up.
example:- me. if I sleep it's hard for me to wake up
what is the salt concentration of pure water
Give a good Explanation and I Will Give Brainiest
Is the coloring of the peppered moths an example of competition, differential reproductive success, or inherited variation? Explain why.
The coloring of the peppered moths is an example of the differential reproductive success that leads to an increase in the frequency of certain phenotypes in a population.
What is differential reproductive success?The term differential reproductive success makes reference to certain phenotypic features that may be considered adaptive in a given environment and therefore lead to higher reproductive fitness in the individuals that carry them.
The coloring of pepper moths indicates that they are more able to survive in environments having the same or similar colors in order to avoid the presence of predators that decrease their ability to survive and reproduce.
Therefore, we can conclude that differential reproductive success is the cause that explains why peppered moths have differential colors in industrial environments in order to avoid predators that decrease their ability to survive and reproduce in such environmental conditions.
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how are speciation and niches interconnected concepts?
Darwin postulated that competition within a niche was the driving force for diversification. In other words, if you can fill a new niche, your odds of successfully reproducing go up. He called it the "principle of divergence" and thought it was one of his most important epiphanies.
Contemporary biologists, on the other hand, would often contend that geographic isolation of a population is the most probable reason for speciation. Due to different niches being present in various places, two populations that were once connected are now isolated from one another. However, it is generally accepted that isolation rather than niche changes contributed more to the beginning of speciation.
Thus, isolation along with entirely untapped niches often accounts for the broad speciation seen in adaptive radiations.
Speciation? What do you mean by that?The process of speciation is how populations become different species. Cladogenesis, the separation of lineages, was first described by the scientist Orator F. Cook in 1906. Cladogenesis is in contrast to anagenesis, which relates to phyletic evolution within lineages.
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Cellulose is a material found in plants. It tested negative with Benedict’s solution. What can you conclude about the composition of cellulose?.
Answer: Pure cellulose would be expected to give a negative Benedict test result. Benedict's test reacts positively to monosaccharides and some disaccharides. These carbohydrates have one or two six-carbon rings. Cellulose is a polysaccharide and is too large and complex to form chemical reactions with Benedict's solution.
Explanation:
John, an 84-year-old male, tripped while on his morning walk. He stated he was
thinking about something else when he inadvertently tripped over the sidewalk curb
and fell to his knees. An X-ray indicated a fracture of his right patella. With the
patient under general anesthesia, the area was opened and extensively irrigated. The
left aspect of the patella was severely fragmented, and a portion of the patella was
subsequently removed. The remaining patella fragments were wired. The surrounding
tissue was repaired, thoroughly irrigated, and closed in the usual manner.
A) 27524-RT, S82.001A, W10.1XXA
B) 27524-RT, S82.099A, W19.XXXA
C) 27520-RT, S82.001A, W10.1XXA
D) 27524RT, S82.001A, W19.XXXA
27524-RT is an open treatment for right patella fractures. A region containing the placement of internal fixation is opened. The remaining patella was a fragment wired with the modifier -RT to indicate that the right S82.001A was an unspecified closed fracture of the patella.
There was no indication that the fracture was open and the bone was sticking out of the skin. If you do not specify whether it is open or closed, the fracture is reported as closed. W10.1XXA reports a fall or fall onto a sidewalk or curb. Option A.
Depending on your age and medical condition it takes about 3-6 months to recover from a fractured patella, but very serious patella injuries may take longer. you may be advised to avoid kneeling or other activities that put a strain on your knee joints for a while. Implant removal may be necessary as wires may protrude from under the skin. Implants should be removed within one year after surgery.
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Based on what you observed in the Seed Growth activity, what are some common patterns in germinations?
Philippines depends primarily on fossil fuels as a main source of energy in different mode of transportation. Since this source is a nonrenewable, it means there will be a time that it will perish. As a STEM student, what can you do or suggest to solve this problem?
Improve the research area in renewable sources of energy and find ways to utilize nonrenewable sources of energy optimally.
Philippines depends primarily on fossil fuels as a main source of energy in a different modes of transportation. One solution to reduce the consumption of nonrenewable sources of energy is using electrical vehicles. Since electrical vehicles require battery power which works on electricity.
Although electrical energy is a clean resource it can be created using both fossil fuels and renewable sources. By producing electricity through renewable sources of energy we can reduce the consumption of fossil fuels. It means there will be a time that it will perish.
Also using fossil fuels optimally can increase the availability time of the fuels on a big scale. Hence renewable sources are the alternative.
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How might you model the relationship between a tomato plant and the hornworm catepillar?
The relationship between the tomato plant and hornworm caterpillar is of parasitism.
Parasitism is the mode of nutrition where an organism lives in close association with another organism. One organism is benefitted from this association and is called the parasite. And the person who gets harmed in this is called the host. The parasite may live on the outer surface of the host or even inside the body.
Hornworm caterpillar belongs to the family Sphingidae. The caterpillar has a horn-like tail and hence the name. The caterpillar specially lives on the tomato plant and feeds on its leaves. It can eat the leaves to such an extent that the plant may become completely defoliated. Hence they have a parasitic relation.
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How might you model the relationship between a tomato plant and the hornworm catepillar?
Answer:
Ok, there are multiple ways of model this, one of the ways can be:
Knowing that a hornworm can strip a tomato plant of its foliage in about two days, we can count the number of hornworms (x, the input) and find the number of plants (y, the output) that they can eat in a day.
So, if a hornworm can eat a plant in two days, then in one day the worm can eat half a plant.
Then:
y = (0.5plants/worm)*x
This says:
The number of plants eaten in one day (y) is equal to half of the number of hornworms
OF course, there are a lot of other ways to model this, for example we can use the time as a variable x, and the number of plants as y.
Knowing that a worm eats a plant in two days:
y = (0.5 plants/day)*x
Now x is the number of days, and y is the number of plants that can be eaten by a single worm
An ameba moves and feeds by forming tempory bulges of the cell membrane called the ________.
A:
false arm
B:
cilia
C:
pseudopods
D:
sarcodines
Answer:
C. Pseudopods
Explanation: