Answer:
Explanation:
a water-repellent cuticle, stomata to regulate water evaporation, specialized cells to provide rigid support against gravity, specialized structures to collect sunlight, alternation of haploid and diploid generations, sexual organs
What characteristic must physical properties have in order to use them to classify matter
Answer:
Physical properties are characteristics that describe matter. They include characteristics such as size, shape, color, and mass.
Explanation:
Hope this helped.!
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:
what by-product is produced when cereal grains are being screened and cleaned, which has a quite variable composition?
The by-product which are produced when cereal grains are being screened and cleaned are bran and endospermic tissue which are removed from the cereal grains.
What are cereals?Cereals are the staple food that are the major source of nutrition for the whole world. The bran of cereal is obtained from the process of milling as by-product and it contains various advantages such as they contain health promoting constituents such as minerals, vitamins, dietary fibers, polyphenols, as well as phytosterols.
Cereal grains are used for the food of humans and they are the basic source of food for humans and it has a great variety and majority is used directly. They are also great source of food for animals.
Therefore, The by-product which are produced when cereal grains are being screened and cleaned are bran and endospermic tissue which are removed from the cereal grains.
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an atom total number of electrons gives its
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.
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
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.
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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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.
And you choose this answer?
What molecule did Woese and Fox use to construct their polygenetic tree?
Answer:
16S ribosomal RNA
Explanation:
Carl Woese used the 16S rRNA gene to discover the third major domain of life, the archaea.
please help ! im so confused
Answer:
Hydrolysis- adding water to split polymers
Dehydration Synthesis- removing water to join monomers together
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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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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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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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.
Question 14 of 25
The development of cars has been good in some ways and bad in others. The
car has allowed for better transportation but it is also responsible for a great
deal of pollution. Which activity helps solve the pollution problem through the
use of new technology?
OA. Encouraging people to walk more
OB. Encouraging people to ride a bus
O C. Building fewer cars
OD. Building cars that give off less pollution
SUBMIT
Answer:
the bus they are riding also causes harm to nature and it will make most people very tierd
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.
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:
Antibodies are a Y-shaped protein that are secreted by the immune system to identify and neutralize pathogens in vertebrates. Antibodies have an antigen binding site that allows for binding to surface proteins found on a specific pathogen, called antigens. All cells have identifying protein markers on the surface that specify whether it’s foreign or a part of the same organism. Some pathogens have the ability to alter their antigens, preventing antibodies from identifying them.
Which of the following arguments is BEST supported by this information?
A
The shape of an antigen allows for antibodies to identify the cell, indicating that the shape of the protein provides specificity.
B
The binding site of an antibody can be altered to accommodate more pathogens.
C
Antibodies must be a complex protein because it is only found in vertebrates.
D
Pathogens can release their own antibodies to fight off host immune system.
State 3 characteristics of a lipid.
Answer:
Fats, oils, and lipoproteins
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.
Can somebody pls help me.
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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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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what does the pH scale indicate
Answer:
pH is a measure of how acidic/basic water is
Explanation:
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
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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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.