the backbone of a nucleic acid molecule is made of
Answer:
sugar-phosphate forms the structural framework of nucleic acids, including DNA and RNA
Explanation:
A sugar-phosphate backbone joins together nucleotides in a DNA sequence. The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.
During the lab in class carlos
Answer: tripped and slipped on Samanthas spit
Explanation:
What did carlos do again
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:
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.
a whole muscle can contract up to as much as of its normal length
A.)1/4
B.)1/3
C.)1/2
D.)2/3
Answer:
b
Explanation:
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
which process is characterized by one replication of dna followed by two rounds of division?
Answer: Meiosis
Explanation: Meiosis is characterized by one round of DNA replication followed by two rounds of cell division, resulting in haploid germ cells.
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:
how can a cross between two closely related organisms result in genetic problems?
Answer:
Inbreeding increases the risk of recessive gene disorders
They receive one copy of the gene from each parent. Animals that are closely related are more likely to carry a copy of the same recessive gene. This increases the risk they will both pass a copy of the gene onto their offspring.
Answer:
Inbreeding increases the risk of recessive gene disorders
They receive one copy of the gene from each parent. Animals that are closely related are more likely to carry a copy of the same recessive gene. This increases the risk they will both pass a copy of the gene onto their offspring.
Explanation:
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.
how many components are included in the cyclical process when infection occurs due to the presence of pathogens?
During the process of infection in the presence of pathogens, five components are included.
The five components included in the infectious disease process are
AgentReservoirInfection portalsTransmissionImmunityThe agents component makes reference to the pathogen by which the infection occurred. Agent types can range from submicroscopic in the case of certain bacteria or viruses, to large parasitic organisms. Meanwhile, reservoir refers to the living and reproductive habits of said infectious organism.
The portals of infection include any form of entry or exit that the infectious agent may have used. These can include:
Respiratory tractUrinary and reproductive tractsEyes EarsSkinThe transmission component refers to the way in which the infection can be transmitted. This can range from airborne transmission and contact to non-contagious agents. Finally, immunity refers to all factors that stop the spread of the agent, be they natural or man-made barriers like masks.
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7. Describe three factors that contribute to the rapid spread of HIV AIDS virus .
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
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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what is photosynthesis..?
ello..guys...is anyone online...✌✨
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
What is the relationship between structure and function in the selected muscle?
cardiac Muscle
Smooth muscle
and skeleton Muscle
Answer:
skeleton muscle .......................................
A soccer ball is kicken with a
Force of 10.5 newtons and
accelerates at 25 m/s2
What is the mass of the
Soccer ball
Answer:
0.42 kg
Explanation:
force=m multiply by area
f= m multiply by a
10.5N=m ✖️ 25
10.5N/25=m
=0.42 kg
which part of the nervous system is most immediately activated by sudden fear?
Answer:
The Amygdala
Explanation:
The fear response starts in a region of the brain called the amygdala. This almond-shaped set of nuclei in the temporal lobe of the brain is dedicated to detecting the emotional salience of the stimuli – how much something stands out to us.
I used this site, if you would like to know more information please read it whenever you are free.
https://www.smithsonianmag.com/science-nature/what-happens-brain-feel-fear-180966992/
The Amygdala is part of the nervous system is most immediately activated by sudden fear.
What is nervous system?Nervous system is defined as a well organised system found inside our body as it will performs a very important function in the body. The main component of nervous system would be spinal cord as well as brain.
The nerves which are arranged in the form of branches that starts from the spinal cord and later distributed in all the parts of body uniformly. The location where the brain as well as spinal cord are located is known as dorsal body cavity and these two parts of the body has play a vital role in the role of communication of all parts of the body.
The location where the brain as well as spinal cord are located is known as dorsal body cavity and these two parts of the body has play a vital role in the role of communication of all parts of the body. The main component of nervous system would be spinal cord as well as brain.
Therefore, The Amygdala is part of the nervous system is most immediately activated by sudden fear.
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what's the detergent that kills mucus
Answer:
Drinking enough liquids, especially warm ones, can help your mucus flow. Water can loosen your congestion by helping your mucus move. Try sipping anything from juice to clear broths to chicken soup. Other good liquid choices include decaffeinated tea and warm fruit juice or lemon water.
Explanation:
I think so cause it true they always say that in science and also some other subject too
A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?
Answer:
Whip scorpion
Explanation:
Can you guys tell me these all animals mode of nutrition
Pisces-
Catfish, Shark, Fish, Seahorse, Electric eel
Amphibia-
Wall lizard, Salamander, Flying lizard, Hippopotamus, Frog
Reptilia-
Snake, Alligator, Crocodile, Tortoise
Aves-
Penguin, Sparrow, Eagle, Kingfisher, ostrich
Mammalia-
Human, Cat, Dog, Whale, Dolphin
If you are the first to answer I will mark you as braininess but the answer must be correct
Answer:
As per my full understanding,
There are two main modes of nutrition:
Autotrophic – Plants exhibit autotrophic nutrition and are called primary producers. Plants synthesis their food by using light, carbon dioxide and water.
Heterotrophic – Both animals and human beings are called heterotrophs, as they depend on plants for their food.
WHEREBY: TERMS IN THIS TWO SETS ARE:
Chemohetrotroph. Gets energy from chemicals and carbon from other sources.
Photohetrotroph. Gets energy from light and carbon from other sources.
Chemoautotroph. Gets energy from chemicals and produces its own carbon.
Photoautotroph. Gets energy from light and produces its own carbon.
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.
where does all filtration take place in the kidneys?
Answer:
nephrons
Explanation:
Each nephron includes a filter, called the glomerulus, and a tubule. The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes.
please help me im timed!! ill make you brainliest!
Answer:
chloroplasts is the site of photosynthesis in plants ✔️✔️
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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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
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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FOR ALOT OF POINTSSSSSS
Read the statements regarding how cells obtain and use energy. Does each statement describe plant cells, animal cells, or both? Drag each statement to the correct place in the chart.
Answer:
Hope it helped!!!!!!!!!!!!!!!!!!!!!!!!!1
I fixed it my bad
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.
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 :)