Answer:A
Explanation:
Nitrogen is the most common element in the air. Why do bacteria play a role in the nitrogen cycle?
Explanation:
Bacteria play a role in the nitrogen cycle because:The bacteria’s helps in breaking down the organic materials which has nitrogen in it, and helps in giving the nitrogen back to the cycle. Bacteria helps in breaking down of the leaves and then it diffuses the nitrogen to the soil. Prokaryotes also plays an important role in the nitrogen cycle. The nitrogen fixing bacteria present in the root zone of plants basically in the soil, helps in conversion of the nitrogen into ammonia. Then the nitrifying bacteria converts the ammonia to the nitrites or can say nitrates.
Answer:
sorry I didn't know hahaha
Explain the adaptations for root hair cell
Answer:
they have thin membranes to allow diffusion of substance for short distance
they are numerous to increase the surface area of absorption
hope this helps
An amino acid analyzer is an instrument used to determine a. the sequence of amino acids in a polypeptide chain b. the presence of modified amino acids in a protein c. the identity of N-terminal and C-terminal amino acids in a protein d. the identities and relative amounts of amino acids in a protein
Answer:
d. the identities and relative amounts of amino acids in a protein
Explanation:
An amino acid analyzer is an automated machine that is used to determine the identities and quantities of amino acids in a given protein, peptide, and cellular samples. It makes use of the ion-exchange chromatography principle to determine the presence of amino acids. When the chromatogram is obtained, the relative amounts are then determined by the analyzer.
Since proteins are made of sequences of amino acids, the identities of proteins can also be obtained through this method. Ninhydrin, in the chromatographic column, reacts with the present amino acids under an ultra violet detector and is then observed at a wavelength of about 440 - 570nm.
When Dr. Philip tierno conducted his experiment on the pillows , he wanted to know the connection between pillows and the allergy-causing germs. He was trying to answer the question, Do these pillows contain germs that contribute to the family allergies?
Answer:
Yes. That was the question he was trying to answer.
Explanation:
To conduct the experiment investigating the connection between pillows and disease-causing gems, Dr. Philip needs to ask himself whether the pillows that will be used in the research contain germs that contribute to allergies in a family. This question allows Dr. Philip to have the basis to start his research and come to a conclusion about the pillows used in the research. Furthermore, the research points directly to the main point of the story.
Answer:When Dr. Philip Tierno conducted his experiment on the pillows, he wanted to know the connection between pillows and the allergy-causing germs. He was trying to answer the question, Do these pillows contain germs that contribute to the family’s allergies?
Explanation:Edmentum
Suppose D were dominant and d were recessive, and you could label the D allele in the P generation with a radioactive substance that could be inherited over several generations. You create hybrids by mating your radioactive DD individuals to dd individuals. Finally, you cross two F1 individuals (with the Dd genotype). In 1,000 offspring, how many would you predict would be radioactive?
Answer:
750 offspring
Explanation:
The correct answer would be 750 offspring.
The D allele has been labeled with radioactive substance.
If you cross Dd and Dd:
Dd x Dd
DD Dd Dd dd
3/4 of the resulting offspring would have, at least, the D allele.
Hence, out of 1000 offspring,
3/4 x 1000 = 750
750 would possess the radioactive label.
In what ways is a eukaryotic cell similar to a city?
Answer: In many ways, the eukaryotic cell is kind of like a city. I will tell you what each of the organelles in a cell does. Your job will be to try to match each of the cell parts to the parts of a city and explain why they are similar. a) Golgi Apparatus: packages up proteins and labels them for distribution to other parts of the cell.
Each one, like the organs inside your body, fulfills a particular function that is required for the cell to stay alive. Consider the cells to be a miniature city. Because they all do similar jobs, the organelles could represent companies, places, or parts of the city.
What is a cell?Cells are the fundamental building blocks of all life. Gazillions of cells make up the human body.
They support the body's structure, absorb nutrients from food, convert those nutrients into energy, and perform specialized functions.
Each one, like the organs in your body, performs a specific function that is required for the cell to survive. Think of the cells as a miniature city.
Because cell city has jobs that a plant cell does not, it represents an animal cell. In cell city, we believe that a waste disposal plant performs the same function as lysosomes, an organelle found only in animal cells.
Thus, this way, a eukaryotic cell similar to a city.
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If Darwin knew of Mendel's work, how might it have influenced his theory of evolution? Do you think this would have affected how well Darwin's work was accepted?
Answer:
See explanation
Explanation:
According to Darwin, the determinant of the ability of species to thrive in their environment is their ability to develop favourable characteristics which enable them to survive in their environment. This ability to develop favourable characteristics is called natural selection.
These favourable characteristics are passed on from parents to offsprings and are responsible for the perpetuation of organisms having these favourable characteristics in comparison to other members of the same species.
In relation to Mendel's theory, these favourable characteristics could be regarded as Mendel's factors (currently identified as genes). These factors are units of inheritance passed on from parents to offsprings.
If Darwin had an idea of Mendel's work when he propounded his evolution theory, he could have modified his idea of favourable characteristics to imply genes. This would have made his idea more empirical than speculative and led to a faster world wide acceptance of his ideas.
plants make glucose using energy from the sun and two molecules. which two molecules do they use ?
easy biology question below first correct answer gets brainliest
help asap if possible!
what were the four key concepts of Darwin's theory of natural selection?
then explain how Lamarck's theory was different and why it got rejected over time?
which example best shows that the chemisty of water is helpful to plants
Jaleel and Lisa are simplifying the expression 2 (x minus 2) + 2 as shown. Jaleel's Method 2 (x minus 2) + 2 = 2 x minus 4 + 2 = 2 x minus 2 Lisa's Method 2 (x minus 2) + 2 = 2 x minus 2 + 2 = 2 x
Answer:
Jaleel is correct
Explanation:
Given
[tex]2(x - 2) + 2[/tex]
Jaleel
[tex]2(x - 2) + 2 = 2x - 4 + 2 = 2x - 2[/tex]
Lisa
[tex]2(x - 2) + 2 = 2x - 2 + 2 = 2x[/tex]
Required
Who is correct
Analyzing the solutions
For, Jaleel; we have:
[tex]2(x - 2) + 2 = 2x - 4 +2[/tex] --- this is correct
[tex]2(x - 2) + 2 = 2x - 2[/tex] --- this is correct
For Lisa, we have:
[tex]2(x - 2) + 2 = 2x - 2+2[/tex] --- this is incorrect because:
[tex]2(x - 2) + 2 \ne 2x - 2+2[/tex]
Hence, Jaleel is correct
Answer:
d
Explanation:
What does it mean to analyze data?
Answer:
The process of examining, cleaning, converting, and modeling data with the purpose of uncovering relevant information, informing conclusions, and assisting decision-making is known as data analysis.
OAmalOHopeO:
What keeps the Sun from expanding any further? A. Solar wind B. Hydrogen C. Gravity D. Visible light
Answer: The answer is B. Hydrogen.
Explanation:
What process occurs during transcription? (2 points)
Synthesis of proteins that are coded for by mRNA
Copying of DNA to form an mRNA strand
Replication of DNA to produce a complementary DNA strand
mRNA folding up by forming complementary bonds with itself
Answer:
Copying of DNA to form an mRNA strand
Explanation:
In transcription, DNA is copied to form an mRNA strand with complementary bases.
The DNA strand being copied during the process is called the template strand, and the mRNA that is made will be created from that strand.
This is the first step of protein synthesis.
This strand of mRNA is further used during translation, where it is used to code for amino acids to make proteins.
So, the correct answer is Copying of DNA to form an mRNA strand
Answer: The correct answer is Copying of DNA to form an mRNA strand
Explanation: Confirmed correct
What is the name of for a different froms of gene
Which statement is true of gravity?
A. gravity takes up space
B. everything that has mass, has gravity
C. gravity can be seen
B. Everything that has mass, has gravity
"Red rust is one of the destructive diseases in tea plants which results adverse effect on tea yield. It is caused by a type of algae." Which discipline of Biology is related to explain the above statement? a. Mycology b. Agronomy c. Pathology d. Phycology
Answer:
C
Explanation:
The correct answer would be plant pathology.
The branch of biology that is generally concerned with the study of diseases is referred to as pathology. When such a study has to do with plants, it is known as plant pathology.
Mycology is the branch of biology that has to do with the study of fungi, phycology deals with the study of algae, while agronomy deals with the study of economically important crops.
Hence, the correct option is C.
what part of a glucose molecule provides electrons in cellular respiration?
Answer:
Hydrogen atoms are the part of the glucose molecule that provides electrons in cellular respiration.
OAmalOHopeO
In a well-fed human eating a Western diet, the richest source of stored chemical energy in the body is ________. In a well-fed human eating a Western diet, the richest source of stored chemical energy in the body is ________. glucose in the blood fat in tissue calcium phosphate in bone glycogen in muscle cells protein in muscle cells
Answer:
fat in tissue
Explanation:
Biomolecules like carbohydrates, fats etc. are well known for their energy storing abilities. Glucose, as a carbohydrate, is the most used source of energy but is stored in excess as glycogen in the muscle and liver cells.
However, fats are far more efficient in storing energy than carbohydrates or proteins because they give more ATP per molecule. Fats are stored in tissues of the body called ADIPOSE tissues. Hence, the richest source of stored chemical energy in the body is FATS IN TISSUES.
Plz answer, will give brainliest
Answer:
a. (black fur): phenotype
b. (AA, Aa, aa): genotypes
c. (Aa): heterozygous
d. (aa): hom0zygous recessive
e. (AA): hom0zygous dominant
Explanation:
I took genetics and biology I hope this helps !!
IN YOUR OWN WORDS, what is the definition for color blindness (include what is special about how this is inherited)
Answer:
Color blindness is the inabiliy to see certain colors of the color spectrum. This disease is hereditary and passed down from your parents.
Explanation:
Answer:
Explanation:
Yes
do you think each form of water is emportant? why?
Answer:
yes, because Water is very important to the human body. Every one of your cells, organs and tissues use water to help with temperature regulation, keeping hydrated and maintaining bodily functions.
Answer:
yes
Explanation:
because Water is very important to the human body. Every one of your cells, organs and tissues use water to help with temperature regulation, keeping hydrated and maintaining bodily functions.
In Meiosis, the cells produced are what?
Answer:
daughter cells
Explanation:
sorry have to write for 20 characters
Question 2 of 10
of the places listed, where would you expect to find the lowest air pressure?
Answer:
The lowest measurable sea-level pressure is found at the centers of tropical cyclones and tornadoes, with a record low of 870 mbar (87 kPa; 26 inHg).
Answer:
if these are your choices:
desert
beach
sea level
mountaintop
its mountaintop
Explanation:
Explain why chewing of boiled rice in the mouth for two minutes is chewing change?
Answer:
The rice changes form inside of the mouth when chewing
Determine which of the following statements is true about energy in ecosystems. A. Producers are able to convert 40% of the sun’s energy into chemical energy. B. 30% of the sun’s energy cannot be absorbed by producers because it is in the wrong wavelength of light. C. Producers only absorb 40% of the sun’s energy, most of which is lost during photosynthesis. D. Producers absorb 5% of the sun’s energy, and reflect 5% of the sun’s energy.
Answer:
A. Producers are able to convert 40% of the sun’s energy into chemical energy.
Explanation:
Energy in an ecosystem must be transferred in the ecosystem. The primary source of energy in an ecosystem is the sun. The terrestrial ecosystem mostly consists of plants and marine ecosystems. As energy flow in an ecosystem is unidirectional. It passed from the organism from one tropic level to another. Only 10% of the energy is available to them.Answer:
Its C
Explanation:
Many plant pathologists believe that plant resistance is based upon the interplay of different signaling molecules? Justified.
Answer:
Yes.
Explanation:
Many plant pathologists believe that plant resistance is based upon the interplay of different signaling molecules because plants have various signaling molecules that plays a great role in their growth and development. Ethylene, auxin, cytokinins, gibberellins, and abscisic acid are the growth regulators that controls the growth of plants in different conditions i.e. in resistance. These signals leads the plant to take measures in difficult situations experience by the plants so in this way the plant is resistance to the harsh environmental condition.
When observing a plant cell under a microscope, what parts do you think would be big enough to see?
Answer:
Explanation:
There are a few key structural differences between plant cells and animal cells.
Below are a few of the main ones:
Plant cells are generally larger than animal cells.
Only animal cells have lysosomes (however, recent, and controversial, research suggests that some plant cells may have lysosomes), and only plant cells have chloroplasts.
While plants cells have a rigid cell wall, animal cells have a thin and flexible plasma membrane.
Plants cells have a large central vacuole and animal cells have many small vacuoles
When observing a plant cell under a microscope, one can see large interlocking rectangular blocks. Around each cell, the cell wall is clearly visible. When stained, the cell wall is somewhat thick and visible. The cytoplasm is also lightly stained, with a darkly stained nucleus at the cell's periphery.
What is a plant cell?A plant cell is a eukaryotic cell with something like a true nucleus and organelles that perform specific functions. However, some organelles found in plant cells differ from those found in other eukaryotic cells.
At the time of observing a plant cell under a microscope, person can see large rectangular blocks as well as cell wall is clearly visible.
When stained, the cell wall is thick and visible. The cytoplasm will also be lightly stained, with stained nucleus at the cell's periphery.
Thus, these structures can be visible under a microscope.
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Describe what happens by the end of anaphase.
a. The chromosomes in the cell become less tightly coiled.
b. The nuclear envelope disappears in the cell.
c. The mitotic spindle of the cell begins to form outside the nucleus.
d. The cell begins to elongate and the two poles have an equivalent collection of chromsomes.
e. The vesicles derived from the Golgi apparatus produce a cell plate at the middle of the cell that eventually forms the new cell wall.
Answer:
d. The cell begins to elongate and the two poles have an equivalent collection of chromosomes.
Explanation:
The cell cycle is a fundamental cellular process by which a parent cell divides into two or more daughter cells. In somatic cells, this cycle can be divided into two major phases: interphase, where the cell prepares for its division, and mitosis or 'M phase'. The M phase can in turn be divided into four stages: 1-prophase (also divided into early prophase and prometaphase), 2-metaphase, 3-anaphase, and 4-telophase. During prophase, chromatin condenses, thereby forming visible chromosomes. Subsequently, during metaphase, the sister chromatids (i.e., the two identical halves of a single replicated chromosome) align along the middle of the cell at the metaphase plate by attaching their centromeres to the spindle fibers. Next, during anaphase, sister chromatids are separated and move to opposite poles of the cell, pulled by the mitotic spindle fibers. At the end of anaphase, the microtubules of the mitotic spindle pull the two sister chromatids toward opposite poles, thereby the cell gets begins to lengthen. Finally, during the telophase, daughter chromosomes arrive at opposite poles and uncoil, while daughter nuclei begin to form at the two poles and nuclear envelopes are formed.
