Answer:
Explanation:
To calculate the population density, you will divide the population by the size of the area. Thus, Population Density = Number of People/Land Area. The unit of land area should be square miles or square kilometers.
i hope it helps
how is silk extracted from cocoons?
WARM-UP
Which statements are true? Check all that apply
In eukaryotes DNA is found in the cytoplasm of the cell
RNA is the nucleic acid that helps build proteins
DNA is the nucleic acid that carries genetic infomation
The structure of proteins is determined by DNA
A chromosome is made of RNA
DONE
which statements are true
Answer:
answer is 2,3,4 on edge
Explanation:
took the test
Answer:
2,3,4
Explanation:
edge 2020 warm-up
7. Which of the following is an anaerobic activity?
a.Glycolysis
b.Photosynthesis
c.Kreb's Cycle
d. All of the above
Answer:
a. glycolysis
Explanation:
I'm really unsure about this but in glycolysis if there is no oxygen, there is a process called fermentation. Fermentation is an anaerobic process and is used when our body lacks in oxygen
A plant cell is placed in a freshwater solution. When it swells with water, filling it's vacuole,
we say that it has
A)crenated
B)plasmolyzed
C)lysed
D)become turgid
Answer:
D. The plant becomes turgid
Explanation:
Why mosquitoes bite us only at night
Answer:
Mosquitoes are most active at night because sun exposure can dehydrate them and could possibly lead to death.
Explanation:
some of the advantages of inorganic farming.
Answer:
With the use of pesticides, farming can be faster and it also detracts insects and weeds
Answer:
One advantage inorganic fertilizers offer is that they are fast acting. These nutrient-rich salts dissolve quickly and are immediately available to the plants depending on them to provide essential nourishment in the form of nitrogen, phosphorus and potassium.Organic fertilizers usually contain plant nutrients in low concentrations. Since many chemical/inorganic fertilizers are concentrated and very soluble, it's easier to apply too much and damage your plants. Fresh, non-composted manure can damage your plants as well, because some manure contains harmful amounts of salts
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Convert 16.45 m into Kilometers
Answer:
0.01645 KM
Explanation:
1000 M = 1 KM
16.45 / 1000 = 0.01645
Hope this helps!
Two black-fur mice are bred, and have the litter shown below. What is the most likely explanation for the presence of the white-fur offspring?
Answer:
an alike gene I think idk
Answer:
Both of the parents are heterozygous.
Explanation:
How is the cytokinesis of plant cell different from the animal cell during mitosis?
Answer:
a plant cell has a rigid cell wall however an animal cell does not. (more info below)
Explanation:
Because a plant cells are surrounded by the rigid cell wall, it cannot use microfilaments to go through cytokinesis. Instead, it builds a cell plate in the middle of the cell to represent the division. An animal cell does not have this rigid structure, so it forms a cleavage furrow by pinching the cell in the middle with microfilaments. This will successfully divide the cell into two.
hooe this helped!
Answer:
Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. In animal cells, the plasma membrane of the parent cell pinches inward along the cell's equator until two daughter cells form. In plant cells, a cell plate forms along the equator of the parent cell.
Explanation:
Which part of the cell control the cell activities
Answer: The answer would be nucleus.
Explanation:
The nucleus is well known for the command center. That’s how you get the answer.
Answer:
the nucleus
Explanation:
How often should observations be made in a simulation of natural selection??
Answer:
A minimum of 3 observations will produce reproducible results
Explanation:
Often, when simulations are carried out to observe for natural selection, it will be safe to conduct >3 observations to reduce the likelihood of errors. Errors could affect the reproducibility of the results which researchers will not want to compromise. The models ( for example the physical natural selection simulation or the virtual natural selection simulation methods) that are used provide for more observations to be made to ensure more accurate results and interpretations are obtained.
What are the 8 main environmental pressures?
Answer:
Climate change, shortage of natural resources, waste in the environment, decreasing biological diversity, toxic chemicals, water pollution, shortage of water resources and air pollution.
hope this helped!
which of these properties, used alone, would be least useful in identifying most minerals? A color B luster C streak D density
Answer:
A-color
Explanation:
Minerals could have the same color, and you can't depend on color to tell you that.
Answer:
A, color.
Explanation:
Color would be the least useful because minerals are often the same or similar in color. :)
Regulating the manufacture of
is the function of RNA.
protein
cells
energy
Answer:
The correct answer is option A, that is, proteins. RNA functions to transform the directions found in messenger RNA into the chain of amino acids, which forms the proteins. Thus, the ribosome is accountable for the production of proteins.
HOPE IT HELPS : D
Explanation:
List and briefly describe in your own words the four main points of Darwins theory.
Answer:
Individuals of a species are not identical, Traits are passed from generation to generation, more offspring are born that can survive,and only the surviovrs of the competition for resources will reproduce.
Explanation:
Which of these is an example of a PHENOTYPE?
A-an allele for yellow flower color within a flower's genome
B-yellow flower color
C-a gene that tells how big someone's nose will be
D-two identical alleles for nose size
I think this is B: Yellow Flower Color
I think phenotypes focus on the physical characteristics rather than the alleles and genes (genotypes).
In the reaction 6CO2 + 6H 20+C6H 120 6 + 60 2 carbon dioxide is one of the
O products.
enzymes.
elements.
catalysts.
reactants.
What is a cell structure that receives proteins and other newly formed materials from the endoplasmic reticulum and packages them and distributes them to other parts of the cell?
cell- the basic unit of structure and function of all living things
microscope -an instrument that makes small objects larger
cell theory- a widely accepted explanation of the relationship between cells and all living things
organelle- a tiny cell structure that carries out a specific function within the cell
cell wall -a rigid layer of nonliving material that surounds the cells of plants and some other organisms
cell membrane- a cell structure that controls which materials go into or out of the cell
nucleus- a cell structure that contains nucleic acids, the chemical instruction's that direct all the cell's activities
cytoplasm -the region between the cell membrane and the nucleus; in organisms without a nucleus, the region located inside the cell membrane
mitochondria rod-shaped cell structures that convert energy in food molecules to energy that the cell can use to carry out its functions
endoplasmic reticulum- a cell structure that forms a maze of passageways in which the proteins and other materials are carried from one part of the cell to another
ribosome- a small grain-like structure in the cytoplasm of the cell where proteins are made
Golgi body -a structure in the cell that receives proteins and other newly formed materials from teh endoplasmic reticulum, packages them, and distributes them to other parts of teh cell
chloroplast- a structure in the cells of plants and some other organisms that captures energy from sunlight and uses it to produce food
vacuole a sac inside a cell that acts as a storage area
lysosome- a small, round cell structure containing chemicals that break down large food particles into smaller ones
element- any substance that cannot be broken down into simpler substances
compound -two or more elements that are chemically combined
carbohydrate- energy-rich organic compound, such as a sugar or a starch, that is made of the elements carbon, hydrogen, and oxygen
protein- large organic molecules made of carbon, hydrogen, oxygen, nitrogen and sometimes sulfur
amino acid -a small molecule that is linked chemically to other amino acids to form proteins
enzyme- a type of protein that speeds up chemical reactions in living things
lipid- energy-rich organic compound, such as a fat, oil, or wax, that is made of carbon, hydrogen, and oxygen
nucleic acid -very large organic molecule made of carbon, oxygen, hydrogen, nitrogen, and phosphorus, that contains the instructions cells need to carry out all the functions of life
DNA- the genetic material that carries information about an organism and is passed from parent to offspring
RNA- a nucleic acid that plays an important role in the production of proteins
selectively permeable- a property of a cell membrane that allows some substances to pass through, while others cannot
diffusion -the process by which molecules move from an area of higher concentration to an area of lower concentration
osmosis -the diffusion of water molecules through a selectively permeable membrane
passive transport- the movement of materials through a cell membrane without using energy
active transport -the movement of materials through a cell membrane using cellular energy
A component of the cell that collects freshly generated proteins and other materials from the endoplasmic reticulum wraps them, and transports them to other areas of the cell is called the Golgi apparatus. The correct option is B.
What is the Golgi apparatus?Golgi apparatus is an organ of the eukaryotic cells. It is an irregular-shaped organ. It was discovered by Camillo Golgi. That's why its name is Golgi apparatus.
There are many functions of this organ. It helps in the packaging of proteins and lipids molecules. These proteins are then transported to other parts of the cell.
Thus, the correct option is B. Golgi apparatus.
To learn more about the Golgi apparatus, refer to the link:
https://brainly.com/question/12233980
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Your question is incomplete. Your most probably complete question is given below:
Lysosomes
Golgi apparatus
Ribosomes
Endoplasmic reticulum
Analicen el cariotipo humano y den dos ejemplos de pares de cromosomas metacéntricos, dos ejemplos de pares telocéntricos y dos ejemplos de pares acrocéntricos.
Analyze the human karyotype and give two examples of pairs of metacentric chromosomes, two examples of telocentric pairs, and two examples of acrocentric pairs.
Answer: The test that is conducted to evaluate and identity the shape,size and number of chromosomes in cells of organism is called the Karyotype.
Metacentic chromosomes are X - shaped chromosomes. They have centromere at the middle, which makes the arms of the chromosomes equal in length. Therefore any type of chromosomes with equal length of arms is said to be Metacentic. Thus chromosomes on position 1,13, 16 , 19 and 20 are examples.
When a pair of chromosomes showed a regular segregation at anaphase of meiosis, they are said to be telocentric. They are type of chromosomes in which the centromere are located at the terminal ends of the chromosomes, with the telemeres extending from theses ends.Hence during segregation, the ends of telocentric chromosomes are orientated towards the poles of the cells. example is the alphabets ''i'' shaped chromosomes in mice and 29 pairs autosomes in Angora goats.
When the centromere is located in such a way that one arm lenght of a chromosomes is longer than the other, then this is called acrocentric. Example is chromosome 21 of down syndrome.others are 13, 14, 15, 22, and Y-chromosomes.
Explanation:
Question 9
Which of the following can be broken down during cellular respiration to make ATP?
a. proteins
b. lipids
c. saccharides
d. a and b
e. a, b, and c
Answer:
lipids (i think) :))
Explanation:
Kai has a see-through glass tank with air, plants, and animals that eat those plants. He sealed the tank so no material can get into or out of it, but light can get in when the tank is not covered.
The light for the tank has been on all day, and Kai measured the carbon in the air and found that it is decreasing. How is carbon moving between the air and the living things in the tank? What is happening to the amount of carbon in living things? Explain your thinking as completely as possible.
Answer:
1. Carbon is moving from the living things in the tank into the air when they respirate, and from the air back into plants via photosynthesis
2. The amount of carbon in living things is increasing as plants use the carbon in the atmosphere, and animals eat the plants.
Explanation:
According to the question, a well sealed tank contains air, plants and animals. Since light can get into the tank, plants can perform photosynthesis. Living things in the tank release carbon in form of carbondioxide (CO2) gas through respiration. Plants then make use of this carbondioxide (CO2) to synthesize carbon-containing food (glucose) in the presence of sunlight. This process is called PHOTOSYNTHESIS.
Animals eat those plants and the stored carbon in the plants gets transferred to them. The animals release this carbon into the air again in the form of carbondioxide when they respire. Hence, carbon in the tank moves from the living things (respiration) into the air and back into plants (photosynthesis).
2. Since the amount of carbon in the air is decreasing, the carbon is being used by the living things in the tank. Plants absorb the carbon in the atmosphere for photosynthesis, then animals eat the plants to get the carbon. Therefore, the amount of carbon in the living things is increasing.
1. Carbon is flowing from the living organisms in the tank into the air by the process of respiration and from the surrounding back into plants via photosynthesis.
The animals in the tank utilize the oxygen when they inhale while during exhalation carbon dioxide is liberated. The carbon dioxide in the tank is used by the aquatic plants to produce food and energy in this way the level of oxygen and carbon dioxide is maintained in the tank.2. The quantity of carbon in living, are expanding as plants use this carbon in the process of photosynthesis from the environment and animals consumes those plants.
The deposited carbon in the food gets spent by the animals and they release this carbon back via exhalation. Therefore the quantity of carbon in living things is increasing.To learn more about respiration and photosynthesis follow the link:
https://brainly.com/question/1388366
Photosynthesis is an example of
Answer:
autotrophic nutrition
Answer:
Photosynthesis is an example of Anabolism and endergonic reactions.
Explanation:
Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. Hence Photosynthesis is an example of Anabolism and endergonic reactions.
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why do we use safranin
Safranin is a basic biological dye commonly used as a counter-stain in some of the staining protocols like gram staining.
Hope this helps
Tried to keep it simple
Can you be my friend
How could meiosis help students
Answer:
by having students draw germ cells and gemetes containing chromosomes with labelled alleles , instructors can assess student understanding of the structure of chromosomes .
Answer:
Meiosis help students by:
1. Having students draw germ cells.
2. Instructors can assess student understanding of the structure of chromosomes.
3. The relationship between germ cell genotype and gamete genotypes.
Hope it helps
what is hyprocloric
Answer:
A homeboy I need the answer too H
Explanation:
Answer:
an aqueous solution of hydrogen chloride HCl that is a strong corrosive irritating acid, is normally present in dilute form in gastric juice, and is widely used in industry and in the laboratory.
Explanation:
Match each environmental change with its description.
Chemicals react with water and oxygen that enter water systems.
arrowBoth
Nutrients in excessive amounts enter water systems, causing algal bloom.
arrowBoth
A high concentration of toxic chemicals is present in the bodies of animals at the highest trophic levels.
arrowBoth
Answer:
The question is incomplete, the missing part i.e. the environmental change is:
(A) biomagnification
(B) acid rain
(C) eutrophication
The answers are:
1. Acid rain- Chemicals react with water and oxygen that enter water systems.
2. Eutrophication- Nutrients in excessive amounts enter water systems, causing algal bloom.
3. Biomagnification- A high concentration of toxic chemicals is present in the bodies of animals at the highest trophic levels
Explanation:
1. Acid rain is an environmental disorder in which rainfall becomes acidic due to pollution. The pollution is as a result of the release of gaseous chemicals e.g sulfur, nitrogen oxide, which are produced by industries, into the atmosphere. These chemicals then react with water in the atmosphere to form acidic solutions, which then falls back as rain. Hence, chemicals reacting with water and oxygen that enter water systems describes ACID RAIN.
2. Eutrophication is the pollution of water bodies with substances containing chemicals like nitrogen, phosphorus etc. The chemicals, which are in excess, serve as nutrients to algae, which uses them to grow excessively forming a bloom called ALGA BLOOM. Hence, nutrients in excessive amounts entering water systems, causing algal bloom describes EUTROPHICATION.
3. Biomagnification refers to the build up or accumulation of toxic chemical substances in the body systems of living organisms higher up in the food chain. Pollutants like pesticides, herbicides flow into water bodies and are absorbed by certain aquatic organisms. When these organisms are fed on by consumers, the harmful substances accumulates in their tissues until it reaches a maximum concentration. Hence, a high concentration of toxic chemicals present in the bodies of animals at the highest trophic levels describes BIOMAGNIFICATION.
Answer:
1. Acid rain- Chemicals react with water and oxygen that enter water systems.
2. Eutrophication- Nutrients in excessive amounts enter water systems, causing algal bloom.
3. Biomagnification- A high concentration of toxic chemicals is present in the bodies of anima
Explanation:
HIF1α is a key player in angiogenesis. VHL is a protein required for the degradation of HIF1α in the normal oxygen level. Loss-of-function mutations in the VHL gene have been found to promote tumor growth. Please explain why these mutations can promote tumor growth?
Answer:
Explanation:
The VHL gene is a tumour suppressor gene that regulates cell growth and cell death. This gene is also located on chromosome 3. It functions to prevent rapid proliferation of cells. For a person to develop tumor both copies of the gene must be mistake or altered allowing for a loss of function that prevents its from causing degradation of HIF1α in the normal oxygen level as its it normal function. This then allows for the survival of HIF1α that promotes amgiogenesis promoting tumor development.
Computers would also help kids apply for schools and jobs.
Which of the following is relevant evidence supporting the
claim?
Students who want to go to Brentview
Arts must fill out an online application.
Our parents say Brentview Arts
Magnet School is one of the best
schools in the neighborhood.
Many of us plan to look for part-time
jobs in the summer,
The school also asks for
recommendations, but these can be
sent in by regular mail.
Answer:
students who want to go to Brentview Arts must fill out an online application
Explanation:
if the only way to get into Brentview Arts is by doing an application online, then computers would help those students. They can't send it through the mail so the computer would be their only resource
A student learns that pure water freezes at 0°C. The student wants to find out how much salt needs to be added to the water to lower the freezing temperature by two degrees. Which statement explains why this question can be answered through scientific inquiry?
The question likely has more than one answer.
The question has already been answered by scientists.
The question can be investigated through a group of experiments.
The question can be answered through mathematical calculations
Answer:
The question can be investigated through a group of experiments.
Explanation:
The question can be investigated through a group of experiments. This statement explains why this question can be answered through scientific inquiry because in science, after a question is asked and an hypothesis is made, experiments are carried out and observed to further verify the accurate measurements.
Please help! 100 points!
What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?
Are any of these interactions between the cycles positive?
Are any negative?
What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it?
How can that influence the oxygen and carbon cycles?
Are there other cycles involved that have not been mentioned in this question?
What does this discussion suggest about the nature of the Earth as one large system?
Answer:
1.Nitrification happens when soil organisms change over ammonium into nitrate. Much of the cover between the carbon cycle and the nitrogen cycle happens within the soil, in forms conducted by soil organisms. Organisms break down supplements, construct modern compounds for their possess development, and inevitably pass on.
The second question im not sure sorry- the positive and negative one ;(
3. Many human activities have a significant impact on the nitrogen cycle. Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem. As nitrogen makes up 78% of the atmosphere, there is no shortage of it – it just isn't in a form plants and animals can use.
4. Carbon makes its way through living things as carbon-based compounds, like vitality particles, fats and proteins, in the long run cycling its way back into the environment. Nitrogen is basically found within the air as well and enters the environments as supplements for plants. Water, nitrogen and carbon cycles. Carbon moves from the air and back by means of creatures and plants. Nitrogen moves from the environment and back by means of living beings. Water moves on, over, or underneath the surface of the Soil.
5. Carbon cycle, Nitrogen cycle, Nutrient cycle, Oxygen cycle, Phosphorus cycle, Sulfur cycle, Rock cycle, Water cycle.
6. Wind, water, and ice disintegrate and shape the arrive. Volcanic movement and seismic tremors change the scene in a sensational and frequently savage way. And on a much longer timescale, the development of earth's plates gradually reconfigures seas and landmasses. Each one of these forms plays a part within the Cold and Antarctica.
People affect the physical environment in numerous ways: overpopulation, contamination, burning fossil powers, and deforestation. Changes like these have activated climate alter, soil disintegration, destitute discuss quality, and undrinkable water. Earth's surface is the as it were territory accessible to the human race. Understanding the forms by which that environment has been made and persistently changed is critical to decide the causes of natural degradation.
