What is the nucleolus?
Answer: A nucleus is basically the brain of the cell. It is in the center of the cell and surrounded by a membrane. The nucleus contains all the chromosomes and controls the cell's growth and reproduction of the cell.
After a fire in a warehouse, an investigation was conducted. Samples were collected
and test results revealed that a substance was used to accelerate the fire. It was
concluded that the fire was an arson crime. A suspect was arrested and charged with
the crime. The suspect was prosecuted and convicted. Which task was done by a
forensic scientist?
collecting and testing the samples for the presence of the substance that
accelerated the fire
conducting the investigation
arresting the suspect
prosecuting the suspect
The correct answer is option A. The task done by a forensic scientist is of collecting and testing the samples for the presence of the substance that accelerated the fire. A forensic scientist's job description may include gathering traces of evidence from crime or accident scenes and documenting findings. laboratory examination of samples including hair, bodily fluids, glass, paint, and medications utilizing multiple methods as necessary, such as chromatography, mass spectrometry, and DNA profiling.
A forensic scientist's three duties or responsibilities are as follows:
assembling evidenceexamining the evidenceinteracting with law enforcement and providing testimony in court. Responsibilities of a forensic scientistGo to crime scenes to conduct investigations and make assessments. capturing images and video of crime scenes. Making notes, identifying, and gathering tangible evidence attending autopsies in order to observe, collect data, and take pictures.Learn more about forensic scientists here:
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Which word names a large area that is characterized by dominant species of plants and animals?
Answer:
Biome
Explanation:
Biome is a specific that live at the area were plants and animals can live becuase of the tempture and the climate fo the are specific species and plants live in that are including dominint species
Can somebody pls help me.
These nutrients move up through the food chain
Answer:
organic
Explanation:
These organic nutrients move up through the food chain. However, when death occurs, decomposition returns the nutrients to the earth.
Joggers running along an urban running path noticed paint running out of a culvert into a nearby creek. Local authorities investigated and found that some homeowners had painted the outside of their home and dumped the extra paint down a storm drain. They were fined. What type of water pollution did they cause?
A. Toxic
B. Sediment
C. Nutrient
D. Bacterial
please help ! im so confused
Answer:
Hydrolysis- adding water to split polymers
Dehydration Synthesis- removing water to join monomers together
We never see frogs,snakes and lizards during extreme winter as they hibernate. What type of adaptation is it? Explain.
Please give short answer. I need this answer . Hurry up
We never see reptiles during extreme winter because they are unable to control body temperature and hibernation is a behavioral adaptation associated with to the unequivocal presence of changes in the behavior of an animal to adapt to extreme cold conditions.
What is behavioral adaptation?Behavioral adaptation is a type of adaptation in which organism change their behavioral features to adapt to challenging environmental conditions such as extreme cold conditions in the case of animals that hibernate during the winter.
This type of adaptive mechanism (behavioral adaptation) is fundamental to maintaining the homeostatic equilibrium in adverse conditions.
In conclusion, we never see frogs, snakes and lizards during extreme winter because they are unable to control body temperature and hibernation is a type of adaptation called behavioral adaptation due to the presence of changes in the behavior of an animal to adapt to extreme cold conditions.
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Types of micro-nutrients required in human diet
Answer:
YOUR ANSWER IS HERE .
Water-soluble vitamins, Fat-soluble Vitamins, Trace minerals, and Macrominerals
Whats the correct answer answer asap for brainlist
Answer:
Option D is the correct answer
Explanation:
All organisms are controlled by genes.
Question 1
What is the volume of a block that is 2 cm on each side?
O 6 cubic centimeters
O 6 square centimeters
O 8 square centimeters
O 8 cubic centimeters
1) Cetacea gives live birth to a very small number of offspring at one time and invest a great
amount of energy in parenting. Most fish, however, reproduce hundreds at one time and spend
very little time in parenting. Discuss the advantages and disadvantages of both methods.
There are two condition: -
1. Less offspring, and more parenting
2. More offspring and less parenting
Less children and more parenting have the advantage of requiring less energy for reproduction and more for parenting, which eliminates the possibility of infant death. The drawback is that this results in a relatively small number of progeny, who may be eliminated by the environment, enemies, or predators, causing disruption in population.
The benefit of having more children and doing less parenting is that there will be a huge amount of children generated who are capable of reproducing, which will ultimately lead to population expansion. The drawback of this situation is that there is no guarantee of survival because of the possibility of encountering predators, natural disasters, or other challenges.
This concept can be explained more by K and r selection.
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ASAP can someone help me with this will mark you brainliest
1. What properties of water cause the water to rise in a straw or capillary tube?
a. Solubility B. surface tension C. capillary action
Answer: C, capillary action.
Explanation:
A straw works because when you suck the air out of the straw, it creates a vacuum. This causes a decrease in air pressure on the inside of the straw. Since the atmospheric pressure is greater on the outside of the straw, liquid is forced into and up the straw and into your mouth.
1. The volume of water in a water tank can be represented as 48 more than the product of 5 and m, where m represents the number of minutes the water has been flowing into the tank. a. Write this as an algebraic expression (2 pts). b. Explain what the 48 represents in the problem (2 pts). c. Explain what the 5 represents in the problem (2 pts).
The parameters in the equation are;
y = volume of the tank
5 = The rate at which water is leaving the tank
m = the number of minutes the water has been flowing into the tank
48 = The initial volume of the tank.
What is a function?We know that a function is a Mathematical rule. We can understand that the function is that which gives us an idea of the kind of operation that we ought to perform as shown. Now we have the information that the volume of water in a water tank can be represented as 48 more than the product of 5 and m, where m represents the number of minutes the water has been flowing into the tank.
If we want to write this as an algebraic equation we are going to have written this sort as shown below as; y = 5m + 48. We can see that this looks exactly like the equation of a straight line graph;
y = volume of the tank
5 = The rate at which water is leaving the tank
m = the number of minutes the water has been flowing into the tank
48 = The initial volume of the tank.
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Why would overfishing cause a starfish outbreak
Answer:
quote, "Cause of crown of thorns starfish outbreak
These outbreaks may be a result of overfishing of the crown-of-thorns starfish's primary predator, the giant triton or they may be a natural phenomenon. These starfish are known to be more successful at preying on large swaths of coral reefs when the corals are already stressed."
Crown-of-thorns Starfish - Oceanahttps://oceana.org
Explanation:
And you choose this answer?
How many gypsy moths are there now (what is there population?) 2022
Answer:
52,396
Explanation:
that's what G o o g l e said
You never see frogs,snakes and lizards during extreme winter as they hibernate. What type of adaptation is it? Explain.
I need a short answer. Please hurry up
Dormancy is the period during which the organism's metabolism decreases to conserve energy. Hibernation is a type of dormancy expressed by animals. This adaptation is Hibernation.
What are dormancy and hibernation?
Dormancy is a period in the metabolism of different organisms, in which their growth, development, and physical activity get suspended for some time. The reduction in all metabolic activities allows the organism to conserve its energy.
Dormancy is closely related to environmental conditions and is considered an adaptation mechanism by which organisms respond to extreme conditions.
Hibernation is a type of dormancy, in which animals progressively decrease their metabolic rates, and body temperature is held a few degrees over the ambient temperature. During hibernation, all functions are reduced: cardiac rithm, respiration, renal function, etcetera.
Frogs, snakes, and lizards, among other cold-blooded animals, need to go through dormancy to survive extremely cold temperatures.
Notice that the dormancy term is commonly used in seeds when referring to the period before they germinate and the new plant emerges. This is another type of dormancy that relates especially to plants.
This type of adaptation is Hibernation (or animal Dormancy).
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give one example of where lipids can be found within the human body
Answer:
Lipids (eg cholesterol, cholesteryl esters and triglycerides) are stored in your body primarily in specialized fat cells called adipocytes, which comprise a specialized fatty tissue called adipose tissue. Stored lipids can be derived from the lipids in your diet or from lipids that your body synthesizes.
2. For
Mass number -
Atomic number-
Na
Sodium
22.989 7492
-Symbol of the element
Atomic mass
how many protons the atom has? How many neutrons? How many electrons?
Answer:
Na
Protons = 11
Electrons = ( protons = electrons )
= ( 11 = 11 )
= 11
Neutrons = ( Mass index - protons )
= ( 23 - 11 )
= 12
Explanation:
please make my answer as brainelist
If someone helps me with this I will give brainiest.
Answer: One reason is the Co2 (Carbon Dioxide) in the air may cause the algae growth.
Explanation:
Carbon dioxide has been known to cause excessive blue or green algae.
Describe how a hypothesis and a design are similar.
A hypothesis outlines your expectations for the results of your investigation. It is a speculative, untested response to your research question. You might need to develop a number of hypotheses for some research projects that speak to various facets of your research issue.
A hypothesis should be founded on accepted ideas and body of information; it shouldn't just be a wild guess. Additionally, it must be testable so that you can use scientific research techniques to either confirm or disprove it (such as experiments, observations and statistical analysis of data). A relationship between two or more variables is proposed by a hypothesis. Anything the researcher modifies or controls is referred to as an independent variable. An observation or measurement made by the researcher is a dependent variable.
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Please answer the following questions based on the titration curve:
1. From the plot, determine the number and types of titratable groups for the unknown amino acid.
2. Determine best you can the experimental pKa values for each titratable group from the plot
3. Determine best you can the molecular weight of your unknown amino acid from data obtained from
your plot.
4. Calculate the isoelectric point of your sample. a) What is the definition of isoelectric point? b)
Where would you find the isoelectric point on a titration curve?
5. What is the identity of your unknown amino acid? Justify your conclusion by comparing the
observed molecular weight and pKa values to those for all of the amino acid
Titration is a useful tool in the determination of amino acid side chains and the ionizable groups. There are two titratable groups for the unknown amino acid. These are α-COOH and α-NH₃⁺. The experimental pKa values for the groups are- pK₁ = 2.35 for α-COOH and pK₂ = 9.78 for α-NH₃⁺.
What is Isoelectric point?Amino acids are the organic compounds that contain both amino and carboxylic acid functional groups. Isoelectric point (pI) is the pH at which the net charge on an amino acid is zero. The isoelectric point of the given amino acid can be calculated by the formula:
pI = (pK1+pK2)/2 = (2.35+9.78)/2 = 6.065
Isoelectric point will be in the middle part of the curve in the buffer region. Buffer region is the section of curve between the initial point and the equivalence point.
The unknown acid would be glycine. The curve gas two dissociation steps- loss of H⁺ from the carboxyl group at low pKa value and gain of H⁺ by the amino group at high pKa value.
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State 3 characteristics of a lipid.
Answer:
Fats, oils, and lipoproteins
Susan said, "If I fertilize my geranium plants, they will blossom.
A. Recognize a problem
B. Form a hypothesis
C. Test the hypothesis with an experiment
D. Draw Conclusion
The correct answer is B. Form a hypothesis.
Since at least the 17th century, the scientific method has guided the growth of science. It is an empirical approach to information acquisition (with notable practitioners in previous centuries). Given that cognitive presumptions might skew how one understands the observation, it requires careful observation and the use of strong skepticism regarding what is observed. It entails developing hypotheses through induction based on these observations, statistically evaluating deductions taken from the hypotheses using experimental data, and then modifying (or removing) the hypotheses depending on the experimental results. These are scientific method principles, as opposed to a predetermined set of processes that apply to all scientific endeavors. An educated prediction as to what will occur throughout your experiment serves as the hypothesis.Variables will be used in your experiment.Therefore, the correct answer is B.
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Analyze the model below. Identify as organic or inorganic compound, or
element/molecule.
H-C-C-0-H
HH
0><=0
ㅐㅐ
carbon dioxide (CO2) organic compound
inorganic compound
OD
Answer:
Organic compounds are compounds which contain carbon and hydrogen covalently bonded to each other and other elements, most notably oxygen, nitrogen, etc.
In this case, the first compound (ethanol, C₂H₅OH) is an organic compound.
Inorganic compounds are any compound which cannot be classified as an organic compound (meaning they lack carbon-hydrogen bonds).
In this case, the second molecule (carbon dioxide, CO₂) is an inorganic compound.
Elements are substances that cannot be broken down and contain a unique amount of protons. Sometimes, elements exist as diatoms in nature (two atoms of the same element).
In this case, the third substance (H₂) is an element.
What is the difference between sickle-cell
DNA sequence and normal DNA sequence?
Answer:
the difference is that a normal DNA sequence is stronger than a sickle cell DNA
Explanation:
Question 13
Imagine you are exploring a new planet and discover a plant-like organism which does not have chloroplasts. Which of the
following statements would be TRUE about the organism?
O It may not be capable of photosynthesis.
O It still has all the appropriate organelles to photosynthesize like an earth-based plant.
O It uses different wavelengths to photosynthesize than earth-based plants.
O It does not store energy as glucose
Chlorophyll, a pigment found in chloroplasts, is what allows plants to prepare food through photosynthesis. There would not have been any plant life if there were no chloroplasts.
Chlorophyll, which is found in chloroplasts, traps light and aids in photosynthesis. Without chlorophyll, there would be no food, which would mean no life. We wouldn't have food if plants lacked chloroplasts since they couldn't use the sun's energy to stay alive. On the other hand, mammals would not have enough cellular energy and would not be able to exist without mitochondria. The process of photosynthesis is carried out by some plants that lack chloroplasts.
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The table shows the characteristics of four different single-celled organisms
Answer: Organism 4 is a eukaryotic cell because the organism is missing a cell wall.
Prokaryotic cells do not have membrane-bound organelles (so no nucleus, the DNA is free-floating), and have cell walls.
Eukaryotic cells have no cell wall, contain membrane-bound organelles (so they have a nucleus), and the DNA is kept inside the nucleus.
Please answer quickly i really need this question
Answer: Hiya so I believe it is 4
Explanation: Because as you see winter is when the earth is away from the sun. It makes sense if the earth is away from the sun then its cold. I might be wrong