Answer:
The femur is the longest bone in the human skeleton. It functions in supporting the weight of the body and allowing motion of the leg. The femur articulates proximally with the acetabulum of the pelvis forming the hip joint, and distally with the tibia and patella to form the knee joint.
Explanation:
oil is a precious non renewable resource american consumers use oil products as fuel for vehicles and in the plastics they use daily what solutions are engineers in the auto mobile industry designing to solve the problem of increasing oil prices and depleting oil reserves
Answer:
In order to lessen the usage of fossil fuels and oils, automobile makers are beginning to use electric powered cars as they do not require oil or gasoline, and electricity is not only renewable but they also help lessen pollution in the atmosphere.
Explanation:
I saw a lot of this question with incorrect answers "In which direction does the head of the molecules of the plasma membrane face?" The answer is that it is facing either the middle or outside, because both the outside and middle (cytoplasm) have water. The heads are attracted to this water.
Answer:
Thx
Explanation:
what is the importance of proteins for living organisms?
Answer: Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.
Explanation:
What Is Main Purpose of Protein in Living Things?
Muscle Mass. The building blocks of proteins are amino acids.
Cell Formation. Every cell in your body has some protein in it.
Tissue Maintenance and Repair. You need protein to help your body repair cells and create new ones.
Enzymes and Hormones.
Energy Source.
Which process is speeded up by rubisco during the light-independent reactions of photosynthesis?
capture of light energy
carbon fixation
reduction
regeneration
Answer: carbon fixation. Rubisco, by its full name ribulose-1,5-bisphosphate carboxylase / oxygenase, is the key enzyme for the fixation of carbon dioxide CO2 in plant biomass by initiating the Calvin cycle, in relation to the solar energy captured.
Explanation:
Answer:
B carbon fixation
i need help please can anyone help?
Answer:
nucleolus
Explanation:
The nucleolus is a region found within the cell nucleus that is concerned with producing and assembling the cell's ribosomes. Following assembly, ribosomes are transported to the cell cytoplasm where they serve as the sites for protein synthesis. Within the cell nucleus there's a very specific part called the nucleolus. This does not contain the chromosomes. What this contains is the machinery necessary to assemble the cell's ribosomal RNAs.
What condition does the endocrine system works to produce
A.) homeostasis
B.) negative feedback
C.) positive feedback
D.) hormone release
Answer: D
Explanation: endocrine gland cells that secrete hormones (chemical messengers), which are carried in the bloodstream to the target cells which they act upon
If a bowl of fresh strawberries is sprinkled with sugar a few minutes later they will be covered in juice Why
Answer:
because the more water in the strawberry than sugar, draws water out of the strawberry.
Why do we get hyper on sugar?
What phenomenon would cause you to see flashes of light after being hit in the head with a ball?
Answer:
Explanation:When you have photopsia, something other than visible light stimulates the retina. These artificial flashes of light are known as phosphenes. The most common cause of phosphenes is pressure on the eye. This can include rubbing the eyes, sneezing, or a blow to the head
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Answer:
chloroplasts is the site of photosynthesis in plants ✔️✔️
How many plants must be on the new settlement to provide enough oxygen for 20 adult humans to survive
Answer:
240
Explanation:
it is said by scientists that 12 plants are required to provide oxygen to 1 adult human being so if we multiply 12 plants with 20 adult human beings than the answer is 240.
What is one condition that must be met for a population to be in genetic equilibrium?
Answer:
The five conditions that must be met for genetic equilibrium to occur include:
1.No mutation (change) in the DNA sequence.
2.No migration (moving into or out of a population).
3.A very large population size.
4.Random mating.
5.No natural selection.
Fill in the blank.
Human haploid cells contain ______ chromosomes and is abbreviated using ____.
Human diploid cells contain ______ chromosomes and is abbreviated using ____.
Answer:
23 chromosomes
n = 23
46 chromosomes
Human haploid cells contain __23____ chromosomes and are abbreviated using ___ n_.
Human diploid cells contain _46_____ chromosomes and are abbreviated using __2n__.
What are chromosomes?a chromosome is the genetic material of every cellA chromosome is a long DNA molecule which part or all of the genetic material of an organism. Most eukaryotic chromosomes include packaging proteins called histones.histones proteins are arginine and histidine. DNA is acidic in nature chromosome is a combination of both histone protein and DNA.The best structure of chromosomes is observed during metaphase.Learn more about Chromosome here:-https://brainly.com/question/11912112
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Which features are found only in eukaryotes, only in prokaryotes, or in both eukaryotes and prokaryotes?
The answers include the following:
The features are found only in eukaryotes is membrane bound nucleus.The features are found only in prokaryotes is nucleoid.The features are found in both eukaryotes and prokaryotes are DNA, Mitochondria. Plasma membrane and ribosomes.What is a Prokaryote?These are the organisms which lacks a defined nucleus and membrane bound organelles while on the other hand, eukaryotes has both features and an example of a prokaryote is bacteria. It possesses distinct organelles such as nucleoid.
It has some similarities with eukaryotes in the organelles present such as ribosomes, plasma membrane, mitochondria etc which performs certain functions in the cell.
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does anyone know what cells are in the respiratory system
Answer:
The respiratory epithelium in trachea and bronchi is pseudostratified and primarily consists of three main cell types – cilia cells, goblet cells, and basal cells. The ciliated cells are located across the apical surface and facilitate the movement of mucus across the airway tract.
Lập bảng so sánh adn và arn
Answer:
like DNA, RNA is made up of nucleotides.There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Explanation:
hope this helps :)
Enzymes are made of what monomers?
Answer:
Amino acids
Explanation:
Since enzymes are proteins, they are made from amino acids. Amino acids are organic compounds.
Which of the following would most likely result from a lack of implementing the Clean
Water Act?
Answer:
Typhoid Fever
Explanation:
Just got it right on CAN Vas.
Typhoid Fever likely result from a lack of implementing the Clean Water Act.
Typhoid was caused by the bacterium Salmonella typhi.It was typically contracted by drinking water tainted by the fecal wastes of infected individuals.What are the reasons for water contamination?Global warming.Deforestation.Industry, agriculture and livestock farming.Rubbish and faecal water dumping.Maritime traffic.Fuel spillages.What are the consequences of water contamination?Contaminated water becomes unfit for consumption by humans and cattle.It results in drastic reduction of fish population.Water pollution results in increased cases of water borne diseases; like cholera, diarrhea, jaundice, etc.Presence of faecal matter results in high concentration of E.coli in water which causes water borne diseases.Contamination of groundwater results in high levels of toxic materials in fruits, vegetables and grains.To know more about contamination here
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A spring with a spring constant of 5 N/m is stretched by John until extended by 1 m. How much elastic potential energy is stored by the spring?
Answer:
0.719m
Explanation:
if the load/ deflection curve of the spring has Force (N) on the y axis and Deflection (m) on the x axis then the slope of the curve is 85 N/m
The energy is the area under the curve ie Base x Height/2
Area (22) = Deflection x (Deflection x 85) /2
Therefore, Def = Sqrt(22 x 2 /85)
Answer:
2.5J
Explanation:
Elastic potential energy = ½ ke²
½ x 5 x 1² = 2.5
1. What
events take place during the cell cycle?
2. How does the structure of DNA
help account for the way in which DNA copies itself?
Answer:
What happens during each stage of the cell cycle?
The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.
pls an answer asap!!
bio
--------------------
Answer:
B
Explanation:
The figure below shows what happens to the pH of two solutions when an acid is added. Use the key above the image to answer the questions about the image.
1) Acid
2) Base
3) Experiment 2
Explanation:1) In Experiment 1, when the acid is added, the color of the solution goes from light (suggesting base) to dark (suggesting acid). As such in this case, adding the acid resulted in an ACIDIC solution.
2)The opposite is true in Experiment 2. When the acid is added, the color remains light (suggesting base). As such in this case, the resulting solution is BASIC.
3) Experiment 2 is when the acid is added to buffer the base. A buffer solution, as you remember, is a solution the resists changes to pH when an acid or base is added. Since the addition of the acid in Experiment 2 was done so the pH doesn't change as drastically as in Experiment 1, then we can conclude that it was done to create a buffer solution.
I hope this helps. Let me know if you need any clarification. I am happy to provide it.
A buffer solution is one that can resist changes in pH when an acid or base is added to it.
In Experiment 1, adding an acid to a basic solution would likely result in the solution moving closer to neutral or becoming less basic. So, it might still be slightly basic but less so.
In Experiment 2, adding an acid to a basic solution would likely result in the solution moving closer to neutral or becoming less basic, similar to Experiment 1.
From the information given, it's not possible to definitively determine in which experiment the acid is added to a buffered base. However, a buffer solution is one that can resist changes in pH when an acid or base is added to it. If either of the experiments involves a solution that shows a relatively small change in pH upon adding the acid (compared to what would be expected without buffering), that could be an indication that the acid is being added to a buffered base.
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Which statement is factual?
a. Asexual reproduction produces offspring that are identical to the parent.
b.Sexual reproduction allows for diploid gametes to combine to increase genetic variation.
c.Asexual reproduction leads to the formation of haploid gametes.
d.Sexual reproduction does not require the production of gametes.
Answer:
a
Explanation:
The solute potential of a plant cell is -10 bar, and its pressure potential is 3. The plant cell is placed into a solution with a water potential of -10 bar.
What is the water potential of the cell, and in which way will water move?
The water potential of the cell would be -7 bar and thus, water will move from the cell to the surrounding solution.
Recall that:
Water potential = pressure potential + solute potential
For the plant cell, solute potential = -10, pressure potential = 3
Water potential of the cell = 3-10
= -7 bar
The water potential of the cell is -7 bar while that of the surrounding solution is -10 bar. Thus, the cell has a higher water potential than the surrounding solution.
Recall that water usually moves from the region of high to the region of low water potential. Therefore, water will move from the cell to the surrounding solution.
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during the experiment measuring energy production in plants, the highest rate of cellular respiration occurred in
Inferring that the experiment in question seeks to measure the rate of energy production in various stages of plant life, we can conclude that the highest rate will be measured in germinating seeds.
The way in which plants produce energy can vary between the species of plants as well as the stage in the plant's life cycle. In broad terms, plants produce energy through cellular respiration.
Cellular respiration is the process by which cells use oxygen or other nutrients and turn it into an energy molecule known as ATP through a series of metabolic reactions. In plants, this occurs in the chloroplasts.
Once the required environmental conditions are met a seed begins to germinate. When this occurs, the seed begins to:
Absorb increased amounts of waterMobilize nutrient reservesGrow rapidly.All of these will require energy molecules to complete. This rapid and sudden increase in the amount of energy required explains why the highest rate of energy production will be measured in germinating seeds.
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it would be the container that has germinating seeds
how is facilitated diffusion different from diffusion
Answer:
diffusion is the movement of molecules from an area where the molecule is in high concentration to an area where the molecule is in lower concentration. ... Facilitated diffusion is the movement of a molecule from an area of high concentration to an area of lower concentration with the help of a protein channel or carrier.n:
what is photosynthesis..?
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Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities
Explanation:
hi
True or false compared with the other substances water requires a lot of heat to increase its temperature
True. Water has a high specific heat capacity (4.18J/g/K) compared to other substances, thus more heat is required to raise its temperature. This can be explained by water's strong hydrogen bonds.
Water is important to maintain homeostasis in an organism. Which of the following
properties of water is not needed for an organism's homeostasis?
Capillary action allows plants to receive water and nutrients from the ground.
Polarity allows minerals and nutrients to dissolve in water.
The density of ice allows organisms to live in ponds in the winter and in cold temperatures.
Surface tension allows insects to walk on water.
Is the carbon used in photosynthesis balanced by carbon given off by cellular respiration?
Answer:
Yes.
Explanation:
Plants absorb the CO2 from the air (which we breathe out CO2) and break it into carbon and oxygen. They use that carbon as well as water from the soil to create glucose and ATP and release the oxygen for us to breathe and then we breath the oxygen in and use cellular respiration to create CO2 and energy from the oxygen and our food. It then goes back through the cycle.