Answer:
the answers are a, b, and ,d
The following could be reasons why population sizes may reach and maintain plateaus are fewer deaths, limits in food supply and increased birth rates.
What is the relationship between natural selection and population?Natural selection can cause microevolution (change in allele frequency), which causes fitness-enhancing alleles to become more common in the population. Fitness is a measure of reproductive success (how many offspring an organism leaves for the next generation, relative to others in the group).
Another factor that limits the growth of populations is densification. This means that a large number of individuals present at the same time in the same area reduces the availability of resources for the population as a whole, increasing the mortality rate and reducing reproductive success.
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What type of bonds are found between the nitrogen bases?
A. Hydrogen bonds
B. covalent bonds
C. peptide bonds
Answer:
A. Hydrogen bonds
Explanation:
The nitrogen bases are held together by hydrogen bonds.
The majority of nitrogen fixation happens when _____ converts atmospheric nitrogen(N2) into ammonia(NH3).
1. Fungi
2. Plants
3. Bacteria
Answer:
3.bacteria
Explanation:
The majority of nitrogen fixation happens when bacteria converts atmospheric nitrogen(N2) into ammonia(NH3).
hope it is helpful to you
The majority of nitrogen fixation happens when bacteria convert atmospheric nitrogen (N2) into ammonia (NH3). Bacteria live in symbiotic associations such as Rhizobium, but some live freely and fix nitrogen.
How is atmospheric nitrogen fixed?The atmospheric nitrogen is fixed by bacteria, which convert the atmospheric nitrogen into ammonia. There are many bacteria involved in this process.
Some bacteria live in symbiotic relationships with the roots of legume plants and capture nitrogen. Example: Rhizobium converts the nitrogen into ammonia, and the nitrogen enters living creatures when they eat the legumes. The leguminous plant makes the soil more fertile due to this process.
This process is aided by bacteria such as Azotobacter and Clostridium. Azotobacter is an aerobic bacteria, while Clostridium is an anaerobic one. The nitrogen is important for living organisms, as nitrogen is important for DNA, RNA, and protein synthesis.
Hence, Bacteria is the correct answer, as bacteria convert the atmospheric nitrogen (N2) into ammonia (NH3). option 3 is correct.
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The chart lists coordinates that describe the locations of
four cities.
City
Location
Kinshasa, Democratic Republic of the Congo 4° S/15° E
Addis Ababa, Ethiopia
9°N/39°E
Lagos, Nigeria
6°N/3° E
Oran, Algeria
35° N/0°W
Which city listed in the chart is farthest south?
Answer:
c.
Explanation:
i took the test
North Carolina has more wind off its shore than any other Atlantic Coast state. How could this resource be best utilized to reduce carbon emissions and provide cleaner energy for the state?
Answer:
C. Offshore wind farms could be constructed to generate wind energy, which reduces fossil fuel use throughout the state.
Explanation:
Option C is the correct answer.
Actually, wind energy is another alternative to fossil fuel. If North Carolina has more wind off its shore, then it is best to utilize it to reduce carbon emissions. It will help produce cleaner energy for the state.
So, the best way it can be utilized to reduce carbon emission is by constructing offshore wind farms in order to generate wind energy. This wind energy will help to reduce fossil fuel emissions.
Answer:
C. Offshore wind farms could be constructed to generate wind energy, which reduces fossil fuel use throughout the state.
Explanation:
Wind power is an excellent option for North Carolina homes, farms, businesses, schools, and utilities interested in producing clean, independent electricity.
Which type of selection occurs when a population experiences a shift in diversity toward the larger organisms?
stabilizing selection
directional selection
disruptive selection
adaptive selection
Answer:
Directional selection
Explanation:
When a population experiences a shift in diversity toward the larger organisms, it is directional selection.
What is directional selection?The term directional selection has to do with a type of selection in which the specie tend towards one side of the population mean.
Therefore, when a population experiences a shift in diversity toward the larger organisms, it is directional selection.
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Is an adaptation on one organism necessarily useful on another? Explain with examples.
Answer:
Do you mean one organisms offspring or same species?
You are part of a research group experimenting with signaling molecules that would tell cancer cells to stop dividing. The cancer cells have inactive receptors on their plasma membrane so you need an alternate method of getting the signals into the cells. What could you use?
A. Plasmodesmata for direct contact.
B. Stimulate the pituitary gland to send the signal as a hormone.
C. Gap junctions for direct contact.
D. Through the synaptic cleft of a neuron.
Answer:
b
Explanation:
the process of __________ is responsible for healing the damaged or worn out cells in our body. (pls answer fast!!)
Answer:
Mitosis
Explanation:
Mitosis is the process in which new cells are formed from older ones by equational division in which ploidy of the cell (chromosome number) remains the same.
which of the following is the best definition of Technology?
A. the most recent electronic devices.
B. The scientific process
C. The pursuit of scientific knowledge.
D. Practice applications of scientific knoledge.
Answer:
I believe its D, technology is to make life easier with new resources, so using that definition, I think that D falls under it
Explanation:
The best definition of technology is the practice applications of the scientific knowledge. The correct option is D.
What is Technology?Technology involves the practical use of scientific knowledge to create tools, machines, and systems that improve our lives and solve problems. It is not limited to just electronic devices, but encompasses a wide range of fields including engineering, medicine, and agriculture.
Technology is the means through which we put scientific knowledge to use. It encompasses both tools (like computers) and methods (like how we make computer chips), as well as both. Although the majority of contemporary technology is electronic, this does not mean that all technology is.
While the pursuit of scientific knowledge is important, it is the application of that knowledge that defines technology.
Therefore, the correct option is D.
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What information can a scientist learn directly from a single fossil? O A. What the organism looked like B. How the organism is related to organisms on Earth today C. How many offspring the organism produced D. How long the organism lived
Answer:
A. What the organism looked like.
Explanation:
From a single fossil you can see what the organism looked like, but you need more than one fossil to know how long it lived. You can't determine how many offspring an organism produced from any fossil. And how the organism is related to organisms on earth today can be learned indirectly from fossils, using other information and technology.
Two students are making models of
cells in plants and animals. They
choose an expanding and shrinking
rubber band to show how one type of
cell acts. Which type of cell does the
A
rubber band best model?
O A. Muscle cells
O B. Epithelial cells
O C. Dermal cells
O D. Guard cells
O E. Nerve cells
HINT
SUBMIT
Answer:
A. Muscle cell because muscle are actualy the most attractive cells in the body most especially men/boyz
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar.
The following chemical equation shows the combustion of ethane. Balance the equation by filling in the coefficients.
C2H6 +
O2 →
CO2 +
H2O
Answer:
2,7. 4,6
Explanation:
2 C2H6. +. 7O2. ==. 4. CO2. +. 6 H2O
Note. In such questions balance C first then H and finally O
It will be easier
Người ta có thể tạo ra những cơ thể mới có kg khác với dạng bố mẹ sẵn có. Em hãy đề xuất 4 cách để tạo ra cá thể như vậy
Answer:
plz ask questions in English
What do you think selectively permeable means?
A. The membrane lets nothing in or out.
B. The membrane lets certain substances move across it freely, while others must move through a “gate”.
C. The membrane lets everything in and out.
Answer:
B. The membrane lets certain substances move across it freely, while others must move through a “gate”.
Explanation:
Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. This is important for the cell to maintain its internal order irrespective of the changes to the environment. For example, water, ions, glucose and carbon dioxide may need to be imported or exported from the cell depending on its metabolic activity. Similarly, signaling molecules may need to enter the cell and proteins may need to be released into the extracellular matrix. The presence of a selectively permeable membrane allows the cell to exercise control over the quantum, timing and rate of movement of these molecules.
B. The membrane lets certain substances move across it freely, while others must move through a “gate”.
Which of the following statements is not an example of evolution that has resulted from human activity? Group of answer choices Some insect species are now resistant to pesticides. Many strains of bacteria are now resistant to some commonly used antibiotics. Like certain other crops, domesticated strawberries are larger than wild strawberries. Because of hunting, organisms such as bears and wolves are fewer in number.
Answer:
The correct answer is - Because of hunting, organisms such as bears and wolves are fewer in number.
Explanation:
Evolution is the change in the characteristics or traits of the species that are developed over several generations by the process called natural selection. Natural selection is the process of transferring the genes or traits that help in the survival of organisms.
Among the given statements all the are the example of the evolution that is resulted from human activity except the extinction or fewer the bears and wolves due to hunting. Other examples are showing evolution as they developed characteristics over generations.
Which thesis statement best suits this persuasive excerpt ?
Smoking Doesn’t Just Hurt Your Health
(excerpt)
The arguments about smoking are usually centered around its effects on the health of smokers and nonsmokers alike. Entire ad campaigns have been developed around the idea of educating smokers about the risk that smoking poses to their health. Chances are you’ve encountered the photo of that diseased lung in your health class. Lawsuits against tobacco companies have gained a lot of media attention. Cities have gone so far as to ban smoking inside buildings, restaurants, and bars. But have you ever stopped to think about what smoking does to the environment?
It is easy to guess that smoking might pollute the air. Did you know that tobacco smoke contains more than 4,000 chemicals? Fifty of those chemicals are known to cause cancer, and two hundred are known poisons. Think about the fact that 20 percent of Americans smoke. Can you imagine how many chemicals are released into the air each year?
Cigarettes also account for an estimated 1.7 billion pounds of trash each year. Some people say the ban on smoking indoors in some cities could contribute negatively to this statistic. Because people are smoking outside, the number of cigarette butts they leave behind may increase dramatically.
A.
Smoking pollutes the air in public places, such as buildings, restaurants, and bars.
B.
Smoking not only produces negative effects on human health but also on the environment.
C.
Smoking damages the environment more severely than it damages human health.
D.
Smoking increases water pollution when cigarette butts are dumped into waterways.
E.
Smoking harms wild animals by polluting and destroying their natural habitats.
Answer: B. Smoking not only produces negative effects on human health but also on the environment.
Smoking not only produces negative effects on human health but also on the environment is best suited thesis statement to this persuasive excerpt.
How smoking effects our body?
Smoking causes lung disease, pulmonary disease, emphysema, diabetes or many more problems.It might be cause throat cancer or mouth cancer. Cigarette have tobacco, carbon monodioxide, benzene, nicotine, formaldehyde types of chemicals which are extreme harmful for body as well as environment.
Smoking is harmful for body as well as environment. Tobacco smoke contains more than 4,000 chemicals. Fifty of those chemicals are known to cause cancer, and two hundred are known poisons. These all are spread over in air and that air intake by the non smokers.
Cigarettes also account for an estimated 1.7 billion pounds of trash each year, so it produces the pollution in air dramatically.
Hence, option 'C' is correct.
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Where is the DNA found in Eukaryotic cells?
A. nucleus
B. rough ER
C. mitochondria
Answer:
A NUCLEUS
Explanation:
Answer:
A. nucleus
Explanation:
The DNA is found in the nucleus of the Eukaryotic cells.
A cell that utilizes NHEJ to repair a double-stranded DNA break which occurred in the open reading frame of a gene is susceptible to indels resulting in a frame shift mutation and ultimately a non-functional protein. False True
Answer:
True
Explanation:
The non-homologous end-joining (NHEJ) pathway is a DNA repair pathway used to repair double-strand breaks that can occur throughout all cell cycle phases. Conversely to the homologous recombination (HR) pathway, the NHEJ pathway does not need a homologous template at the DNA double-strand breaks ends and therefore NHEJ is an error-prone repair pathway that may cause mutations within the repaired region of the DNA. The NHEJ pathway is well-known to induce indels (i.e., insertions and deletions) mutations that shift the reading frame of the protein (i.e., frameshift mutations), thereby leading to a completely different translated protein from the original one.
Leukemia is a type of cancer that prevents a person from being able to make new blood cells. What part of the body develops this kind of cancer? O A. Kidney O B. Brain O C. Liver O D. Bone marrow SUBMIT PREVIOUS.
Answer:
D. Bone
Explanation:
Leukemia, a type of cancer found in your blood and bone marrow, is caused by the rapid production of abnormal white blood cells. The high number of abnormal white blood cells are not able to fight infection, and they impair the ability of the bone marrow to produce red blood cells and platelets.
I’ll mark as brainliest pls help!
Answer:
the answer should be rrxrr
Explanation:
a wrinkled pod is a recessive trait which is represented by "r"
When he discovered that blood is pumped from the heart to the body, and back to the heart, ________ had a difficult time getting people to accept his discovery because it went against the ancient teachings of _______.
Answer:
1 - William Harvey
2 - Galen
Explanation:
Galen, who postulated that blood was produced continuously in the liver and absorbed by the body (not recirculated), served as the Roman emperor's personal physician. For 1500 years, his theories about human anatomy went unquestioned until Harvey's proposal in 1628.
When he discovered that blood is pumped from the heart to the body, and back to the heart, William Harvey had a difficult time getting people to accept his discovery because it went against the ancient teachings of Galen.
What is the composition of blood ?blood is a fluid connective tissue contain blood cells and an plasma.
The major functions include transportation and providing immunity and protection.
The major components include plasma primary constituent of blood contain 55 percent of blood volume. It is made up of water, salts, proteins, and blood cells.
Red Blood Cells which determine blood type, biconcave in shape, enucleated contain millions of hemoglobin molecules.
White Blood Cells act as defensive cell in the immune system and lymphatic system against infection.
Platelets are formed from pieces of cells present in the bone marrow called megakaryocytes.
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Which is the following is NOT occurring during Interphase?
A. carrying out their cellular function
B. dividing
C. replicating DNA
D. growing
Answer:
B. dividing
Explanation:
The dividing process does not occurs during Interphase.
helpppp someoneee :,)
Answer:
It should be your appendix. If not I'm sorry
Answer:
Appendix
Explanation:
Im pretty sure it's the appendix.
ileum is a part of the small instestines
Epiglottis is for eating purposes
Villi found inside the small intestine
a group of plant cells was exposed to radiation, which damaged the chloroplasts and coursed them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cell
Explanation:
First of all the mitochondria is the power house of a cell. Then a chloroplast is one which contains chlorophyll in which photosynthesis takes place.
Plants make use of photosynthesis to synthesize nutrients from carbon dioxide and water. If the chloroplast is damaged that means the plant would wither but it may not likely die since the mitochondria is unharmed.
In which process do homologous chromosomes pair up?
A. Mitosis
B. Meiosis
Answer:
the answer is meiosis
Explanation:
in miosis it happens in prophase I.
Answer:
B. Meiosis
Explanation:
Homologous chromosomes pair up in meiosis.
A chromosome has an inversion.which describes a pericentric inversion
Pericentric inversion:
a chromosome in which a segment of a chromosome is reversed end to end, then put back into place.
An example of a communicable disease is
Answer:
An example of a communicable disease could be influenza. A communicable disease is just a disease caused by virus or bacteria that spreads from person to person.
I need help with this please !!
Because _____ is not a reason to reject frozen food.
a similar or identical product is available in freeze-dried form
fluids or frozen liquids appear in case bottoms
there are water stains on the package
ice crystals appear on the product or package
Answer: Correct answer is A, a similar or identical product is available in freeze-dried form.
Explanation:
edge 2023
What were some number of possible solutions to air pollution?
