Answer:
The answer is photosystem 1
Explanation:
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Answer: A.) photosystem I
Explanation: i hope this helps :)
How long does it take for bugs to die?
A tumor cell with a mutation in Rb can divide in the absence of extracellular signals. A. If the Rb mutation is responsible for the increased cell division, is it likely that Rb is always active or always inactive
Answer:
The Rb will always stay active
Explanation:
The Rb, undergoing a mutation that promotes cell proliferation, the cells will proliferate excessively, either benignly or malignant, forming a tumor structure.
The Rb mutation is considered an irreversible process, which will generate an unlimited and excessive growth that is abnormal when compared to the other non-mutated cells.
an example of a teacher teaching philosophy
Answer:
I will assist my students to express themselves and accept themselves for who they are, as well embrace the differences of others. "Every classroom has its own unique community; my role as the teacher will be to assist each child in developing their own potential and learning styles.
1. Describe at least one part of the experiment procedure you thought was essential for getting good results. Did you find that certain steps in the procedure had to be followed carefully to get consistent results? If you wanted better results, do you think there is a step that could have been added to the procedure? 2. Discuss your thoughts on the overall lab design. Did it help you understand the concepts better, or did it raise more questions? Do you think you could have designed a better experiment? If so, explain how and then discuss it with your classmates. Share some of your knowledge with them to learn a little more about this experiment.
Answer:
Control environment is the most important procedures for getting good results.
Explanation:
The control environment for an experiment is the essential part for getting good results. In control environment, there is no or less chances of infestation from the external environment which can cause the results of the data more acceptable. So the scientists prefers laboratory for performing experiment as compared to outer environment. So in my opinion for getting better results, the control environment is the most necessary experimental procedure.
Yes, for getting better results I think there is a step that could have been added to the procedure is to follow the international standard procedures for taking the readings by the experimenter.
Answer:
The control environment for an experiment is the essential part for getting good results. In control environment, there is no or less chances of infestation from the external environment which can cause the results of the data more acceptable. So the scientists prefers laboratory for performing experiment as compared to outer environment. So in my opinion for getting better results, the control environment is the most necessary experimental procedure.
Explanation:
What do you think the algae offer that the fungi can’t do
Answer:
algae are autotrophic
Explanation:
the cell wall is made up of cellulose
Which form of bacteria is matched correctly to its description? spirillum—has a rod shape and exists in chains or alone coccus—can cause MRSA and has a round shape coccus—can cause acne and has a spiral shape bacillus—has a spherical shape and can form clusters
Answer:
coccus—can cause MRSA and has a round shape
The form of bacteria is matched correctly to its description is coccus, which can cause MRSA and has a round shape.
What are the forms of bacteria?Bacteria is a microscopic living organism that can exist as free-living or in colonies.
Based on shape, bacteria can exist in the following forms:
spherical shaped (cocci)rod shaped (bacilli)spiral shaped (spirilla)comma shaped (vibrios) corkscrew (spirochaetes)Therefore, the form of bacteria is matched correctly to its description is coccus, which can cause MRSA and has a round shape.
Learn more about bacteria at: https://brainly.com/question/2490932
A graph titled "Average plant height (cm) vs. Concentration of sodium phosphate (mg/L)" shows an upward-sloping line that reaches a maximum value and then stays there over the remainder of the graph.
What noticeable trend from this graph might be used to make a conclusion?
A.
Average plant height increases with an increase in the concentration of sodium phosphate until the plants reach a maximum possible height.
B.
Average plant height causes an increase in the concentration of sodium phosphate.
C.
Average plant height is not affected by the concentration of sodium phosphate.
D.
Average plant height is halved every time the concentration of sodium phosphate is doubled until all of the sodium phosphate has been used up.
Answer:
A. Average plant height increases with an increase in the concentration of sodium phosphate until the plants reach a maximum possible height.
Explanation:
The graph in the attachment section portrays the average height of plants (cm) on the y-axis plotted against the concentration of sodium phoshate (mg/L) on the x-axis. Based on the observation of the result in the graph, an increase in the concentration of phosphate caused an increase in the average plant height (as depicted by the upward-sloping line).
However, the plant's average height didn't go beyond 35cm despite an increase in concentration of phosphate. This is because the plants has reached a maximum possible height i.e. a height climax. Hence, they cannot grow taller than 35cm no matter the amount of external nutrients (sodium phosphate) supplied.
Therefore, the noticeable trend that can be used to make a conclusion is that average plant height increases with an increase in the concentration of sodium phosphate until the plants reach a maximum possible height.
Plant growth is discovered by the color of light
Answer:
no
it wasn't like that buddy
Answer:
Yes, different kinds of light help different kinds of plants grow.
Explanation:
For example, Blue light helps veggies to grow. Hope this helped you in some way!
How could you use different research methods to complement each other when studying a particular process in the brain?
Answer is given below
Explanation:
The brain is a complex structure and requires different methods to be declared in order to obtain a clear illustrator. Cavalder study is a method of comparing the brain of a dead person. For example, Einstein compared the brain to the brain of ordinary people. It has been hypothesized that the proportion of glia cells in the neuron is higher in a person with a higher IQ, such as Einstein. However, it cannot be confirmed that only a specific brain is available. The study of the session helps us to identify the problem associated with defects in a particular area and eliminates the function of a specific area of the brain. For example, clots form in the frontal lobe during a stroke, which can sometimes lead to epilepsy. The disadvantage of these methods is that the brain is not active. A new method of EEG electroencephalogram that measures electrical signals if each neuron is present. It measures brain activity when the brain is active. The EEG can provide information about the normal patterns of electrical activity in the brain, and although the EEG allows the researcher to quickly observe when these changes occur in real time, the electrode measures the surface of the skull and each electrode measures brain waves from large areas to be placed on the brain. EEGs do not provide a very clear picture of brain structure. The image of the brain cannot be obtained by changing the electrode to measure the electrical signal. but there are MRI techniques to provide more specific brain images. Functional magnetic resonance imaging uses the scan method using magnetic fields to create an image of the brain in each activity field. Therefore all mixed methods can help to study the brain and related activities more deeply and effectively.Answer:
Brain is a complex structure and needs analgamation of various methods to get a clearer picture.
One method is cavalder studies where brains of dead person is compared. For instance , Einstien brain was compared with ordinary people brain. The ratio of glia cells to neuron was hypothesised to be higher in high IQ person such as Einstien. However , this cannot be ascertained as only one special brain was available.
Lession studies help us identify the problem associated with a lession in a particular area and conclude the function of specific region of brain.for example , during stroke the is clot in frontal lobe that leads to epileptic ceasure sometimes.
Drawback of these method is that brain is not active. So new method of EEG electro encephelogram which measure electrical signals if each neuron. It measures brain activity when brain is active.
the EEG can provide information about the general patterns of electrical activity within the brain, and although the EEG allows the researcher to see these changes quickly as they occur in real time, the electrodes must be placed on the surface of the skull and each electrode measures brain waves from large areas of the brain. As a result, EEGs do not provide a very clear picture of the structure of the brain. A still images of brain cannot be obtained by placing electrodes to measure electrical signal.
But MRI techniques exist to provide more specific brain images. Functional magnetic resonance imaging uses a scan method utilising magnetic field to create an image of brain in each activity area.
Thus all methods combined can help in study of brain and associated activities more profoundly and effectively.
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You are given two test tubes, A and B, each with 3 mL of starch solution. You add 1 mL of amylase to tube A, and 1 mL of water to tube B. After waiting for 30 minutes, what would you expect to see?
Answer:
CHOOSE
Explanation:
MATHEMATICSN HOLD ON
Why can some medicines be absorbed through the skin?
Answer:
Explanation:
Some medication can be absorbed through the skin as the skin or mucous membranes allow it to enter through the body. Most drug absorbtion occurs between cells by passing through sweat pores and hair follicles, making it transcellular. Thus, topical medication is able to be absorbed through the skin due to pores and hair follicles.
You are observing a sample of cells in the lab to determine why they did not divide properly. You notice that the chromosomes are lined up in the middle of the cell, and the spindle fibers have extended towards them, but have not attached. What could be damaged?
Answer:
The kinetochore of the chromosomes
Explanation:
What could be damaged that is hindering the spindle fibers from attaching to the chromosomes are the kinetochores of the chromosomes.
At the metaphase stage of the cell division, the chromosomes align at the equator of the cell and the spindle fibers engage each chromosome at a region known as the kinetochore.
The kinetochore is made up of complex proteins and lies around the centromere region of the chromosome. The microtubules of the spindle fibers attach to this region during the metaphase stage.
If the kinetochore is damaged, it means the spindle fiber will not be able to attach to the chromosome.
Draw a flow chart of the steps that would be employed by a neutrophil to eliminate a bacterial cell. Assume that no antibodies are present that recognize the bacteria as foreign.
Answer:
The neutrophil is the first line of defense, it is called as PMN OR POLYMORPHONUCLEAR NEUTROPHIL, this cell is said to be the first line of defense for the first to reach the area of infection or in the area of trauma, this upon reaching that area (where it is attracted by defense chemomodulators) it recognizes the bacteria or the foreign body as an antigen, since these do not present the cellular histocompatibility complex of our organism, by recognizing it as an antigen, this cell can detect that it is not something typical of our body but something new that was inoculated, is how this phagocyte to the bacteria and induces its own programmed cell death.
In an injury or infection, the purulent collection is not only debris and pathogenic microorganisms, but they are dead cell bodies of PMNs that induce their own cell death with the battery inside to be able to inhibit its advance in our body, when this phenomenon passes the PMN it is called a peach.
Explanation:
In the event that no antibodies are present, it would not change much if it is the first time that the bacteria enters our body since the formation of antibodies by the lymphocyte cell line occurs as the last stage of immunity (neutrophils appear first, then the antigen presenting cells and finally the lymphocyte lineage in charge of making immunological memory with antibodies).
The PMN are guided more than anything by the humoral factor of the immune response, but the proinflammatory factor like cytokines or leukins, but not by the antibodies, that is why he wrote this process of bacterial assimilation in the response.
A is a chemical substance that organisms require to live.
Answer:
Nutrient
Explanation:
A nutrient is a chemical substance that all types of organisms require to live.
You may see a lot of brain imaging studies in the news or on the Internet. Thinking back to the research methods discussed in Chapter One (Learning Objectives 1.6 through 1.11), what kinds of questions should you ask about these studies before accepting the findings as valid?
Answer:
Before accepting brain imaging studies, the inquiries that I would pose before believing these discoveries to be legitimate are:
Did the investigation show up in a peer-reviewed journal?
peer-reviewed implies presenting the exploration papers to different specialists for an alternate and free audit before accepting it. It is perhaps the most ideal way of finding out the reality of the study and how right the outcomes are. It is in every case great to go for the subsequent feeling.
How large was the sample?
Clearly more the members in an examination, progressively substantial are its outcomes. This is to learn that there were a serious measure of individuals whose brain were examined.
Did the scientists control for key contrasts?
Assorted variety or sex parity ought to be there while contemplating the examples. One shows signs of improvement result when the investigation of populace is as homogenous as conceivable in light of the fact that it permits the specialists to reduce or diminish the quantity of contrasts that may influence the examination or result.
The amino acid methionine is specified by the codon 5'-AUG, and a methionine tRNA can have the anticodon sequence 5'-CAU. Which of the following is the base sequence of the template strand of the part of the tRNA gene corresponding to the anticodon?
a. 5'-GTAb. 5'-CAUc. 5'-CATd. 5'-UACe. 5'-AUGf. 5'-GUAg. 5'-TACh. 5'-ATG
Answer:
g. 5' GUA
Explanation:
Because it is a reverse start codon to the 5'-AUG. Template stands and coding strands have the reverse of each other
A-T(DNA), A-U (RNA), G-C
Hope this helps.
The base sequence of the template strand of the part of the tRNA gene corresponding to the anticodon is 5'-GUA. So, the correct option is F.
What is a Template strand?Any strand which is used by DNA polymerase/RNA polymerase to attach a complementary base during DNA replication/RNA transcription. It provides an idea for replication.
The amino acid methionine is specified by the codon 5'-AUG, the template strand of the part of the tRNA gene is a reverse of the start codon. Template stands and coding strands are complementary to each other in such a way as to facilitate the process of DNA replication or RNA transcription.
Therefore, the base sequence of the template strand of the part of the tRNA gene corresponding to the anticodon is 5'-GUA.
To learn more about Codons and their functions, refer to the link:
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A population of fish exhibits multiple variations in color, size and mouth structure; however, there does not appear to be any selective advantage for these traits because all individuals are allowed to breed and survive! Which of the following is most likely occurring in this fish population?
Answer:
This population of fish is undergoing the process of Genetic diversity
Explanation:
The phenomenon known as Genetic diversity is described as variation that occurs within a species or community. Individual organisms are unique owing to their genetic makeup. Ample variation within a population, or genetically diverse population, allows it to better survive various sorts of stresses from the environment, ensuring better survival of the species.
Give 8 Differences each between immunization and immunity
Anyone that answers I will mark the person as brilliant
Answer:
1- The immune system develops antibodies to the disease so that it cannot make you sick again.
2- Immunization describes the actual changes your body goes through after receiving a vaccine.
3- Immunization is the process whereby a person is made immune or resistant to an infectious disease.
4- Vaccines stimulate the body’s own immune system to protect the person against subsequent disease.
5- Immunity is the capability of multicellular organisms to resist harmful microorganisms from entering their cells.
6- Immunity is the ability of an organism to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells.
7- Immunization is the action of making a person or animal immune to infection.
8- Vaccines strengthen the immune system.
The diagram below shows the stages of succession in a forest ecosystem. A diagram showing 4 stages of succession in a forest ecosystem. Stage A: A mature forest. A fire occurs, resulting in Stage B, a burnt forest where nothing is growing. Stage C, pioneer plant species grow in the bare ground. More species follow and grow bigger. Stage D: A mature forest with several tree species and younger trees. Which area shows the climax community of secondary succession?
Answer:
D
Explanation:
just took the test
Answer:
D
Explanation:
Area D shows the climax of secondary succession.
You often see high-pressure areas and low-pressure areas indicated on weather
maps. Which statement best describes the wind direction with respect to these high-
and low-pressure areas?
Wind will blow towards low-pressure areas and away from high-pressure areas.
The temperature in a room is 56c. What would the velocity of a sound wave be at this temperature
Answer:
The temperature in a room is 56°C. The velocity of a sound wave be at this temperature would be 364.6 Hz.
What are some questions that biologists might ask about the living things they study?
Molecular biology is asked about the living things they study
ASAP You are observing proteins in a lab for an experiment. During transport, they have started to unwind and lose their shape. You notice long strands wound into alpha helices. What level of structure are the proteins in? A. Quaternary B. Primary C. Secondary D. Tertiary
Answer:
C. Secondary
Explanation:
In proteins, the structure of local segments can be arranged into three different three-dimensional formations: alpha helices (α-helix), beta sheets (β-strand) and omega loops. An alpha helix is the most common secondary protein conformation because it has low-energy and a stable arrangement. The α-helix is formed by the interaction between amino acids of every backbone N−H hydrogen bonded with the backbone C=O group of the corresponding amino acid residue in the polypeptide chain. The α-helix motif is very common in transmembrane segments of proteins that cross the lipid bilayer.
What are ways that humans can lower bio diversity as they use the environment
Answer:
1. Reduce the misuse of land.
2. Reduce climate change.
3. Reduce invasive species.
what is biodiversity Which of the following shows the correct chronological order (geologically oldest to most recent) of near or total extinctions for the organisms listed?
Answer:
Biodiversity is the diversity of living beings, be they animals or plants, which together make up the totality of life on planet Earth. In other words, the term biodiversity necessarily implies a large number of different species and genres of living beings, which interrelate with each other through food chains, sharing natural habitats or even establishing more complex links. In any case, it requires that heterogeneity that implies the existence of several different living beings from each other in a given space.
Why are scientists studying the effects of warming on boreal forests? How far might this forest biome move if climate projections are correct?
Answer:
Scientists studying the effects of warming on boreal forests which change the biome.
Explanation:
The main effect of warming on boreal forests is to change the biome because the plants and animals will not tolerate the increased temperature which occcurs due to climate change so the plants and animals disappeared from the boreal forests and change its biome. The animals migrated to other suitable environment where they continue its growth and increase their population. If climate projections are correct, the biome of this forest go to those places where the environment is suitable.
Which infection is caused by this organism?
Malaria
O African sleeping sickness
O Girardiasis
O Amoebiasis
Answer:
Malaria by plasmodium
African sleeping sickness is cuased by tripanosoma
Girardiasis by girardia
Amoebiasis by amoeba
Explanation:
what might be reasons why galileo galilei failed to discorve a cell yet wsd the one who invented a microscope
Answer:
Galileo galilei was an astronomer not a biologist.
Explanation:
Galileo galilei failed to discover a cell yet the one who invented a microscope because the Galileo galilei was an Italian scientist who contributes in the field astronomy and mathematics. He was not interested in biology so he was not able to discover the cell in the presence of microscope. Galileo galilei made many theories about the universe and make improvements in the structure of telescope which enables him to study the universe.
One reason cells divide is that
Answer:
A lot of answers ! :P In explanation
Explanation:
For example, when you skin your knee, cells divide to replace old, dead, or damaged cells. Cells also divide so living things can grow. When organisms grow, it isn't because cells are getting larger. Organisms grow because cells are dividing to produce more and more cells.
I hope I helped you :♡
There are limitations to applying the Biological Species Concepts, based on its criteria, so in some cases it is actually better to use the Morphospecies Concept. Which of the following would require being defined using the Morphospecies Concept instead of the Biological Species Concept?
a. Birds
b. Dinosaurs
c. Insects
d. Mammals
e. Flowering plants