Answer:
Nitrogenous bases contain the genetic information, their amount is variable among different species, and the arrangement of these bases is also variable among different species
Explanation:
Both Watson-Crick and Pauling's DNA models considered that DNA nitrogenous bases (i.e., Adenine, Cytosine, Thymine and Guanine) contain the genetic information that determines the characteristics of living organisms. Moreover, both DNA models also considered that nitrogenous base composition varies between species, as well as the arrangement of these bases in the DNA chain also varies between species. Based on these features, Linus Pauling considered that a model where nitrogenous bases would be arranged on the outside of the DNA molecule would be easier for the DNA molecule to be replicated, transcribed, or repaired. Although incorrect, Pauling's DNA triple helix model was fundamental to develop the helical (double-stranded) structure of DNA, which was finally discovered by Watson and Crick in 1953.
why do oxygen gas and hydrogen gas have different properties?
☁️ Answer ☁️
Furthermore, another difference between hydrogen and oxygen is that the hydrogen gas is highly flammable while oxygen gas is non-flammable. But, oxygen gas aids the combustion of other materials. Aboveall, the key difference between hydrogen and oxygen is that the hydrogen is a very light gas whereas the oxygen is a heavy gas.
-GoogIe
Hope it helps.
Have a nice day noona/hyung.
In which region would you find the lowest concentration of public land in the United States?
a.
the Pacific Northwest
b.
the West coast
c.
New England
d.
the Midwest
Please select the best answer from the choices provided
A
B
C
D
Answer:
answer is c - new England
Answer:
It is C
Explanation:
PLEASE HELP ME OUTT!!!
Answer:
The nurdles contain concentrated toxins that can poison the animals. ( I think this is the answer because nurdles are toxic and animals pretend that they are fish eggs or food and mistakenly eat them.
hope this helps....
A scientist exploring in the rainforest found an unclassified organism. It is multicellular and made of multiple thread-like structures. The organism has cells with a nucleus and a cell wall made of chitin. The scientist should classify this organism as belonging to the kingdom—
Answer:
Kingdom Fungi
Explanation:
Based on certain characteristics possessed by living organisms, they have been classified into five different kingdoms namely; plantae, animalia, monera, protista and fungi. Organisms with similar characteristics have been placed under the same kingdom.
Kingdom Fungi is a kingdom that contains organisms that possess characteristics different from plants and animals. Some of these features are those possessed by the unclassified organism found in the rainforest and they are as follows:
- They are eukaryotic (possess a true nucleus) and multicellular (have more than one cell).
- Their cell wall is made of chitin (a carbohydrate)
- They are made of multiple thread-like structures called HYPHAE.
Based on these mentioned characteristics above, the scientist should classify this organism as belonging to the kingdom FUNGI.
Helppp me pls :$$)))
Answer:
A. containers A and B represent mixtures
is testicular pain serious or normal for teens ?☹☹☹
Guys plz tell i am seriously asking this question.
Answer:
growing pains maybe? if its really bad though you should go to the doctor
Explanation:
Answer:
yeah if it is really that bad you might want it checked.
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answer: d
Explanation:
They are compe for the same prey which means this is a survival competition
POSSIBLE POINTS: 1
Two plants are crossed, and the traits of height and color are assessed in the offspring. The following cross was conducted: TTPP x ttpp. Which of the
following choices correctly describes the offspring?
T = dominant allele for height, tall plant
t = recessive allele for height, short plant
P = dominant allele for color, purple
p = recessive allele for color, white
TP
TP
ТР
TP
tp
tp
tp
tp
O All are tall and purple
O Three-quarters of the plants are short and white
All are short and white
Three-quarters of the plants are tall and purple
Answer:
A. All are tall and purple
Explanation:
When you set up a punnet square, all of the results would be TtPp.
When a dominant trait is present, it preceeds over the recessive trait. (Also it depends on what genotypes are given. Ex: In flowers if they gave RR shows red, Rw shows pink, and ww shows white, but that's not the case here given that there are only 2 genotypes).
So to break it down:
Tt -> tall plant
Pp -> purple plant
so they are all tall and purple.
Which sensory receptor is found in the skin?
Answer:
The cutaneous receptors' are the types of sensory receptor found in the dermis or epidermis. They are a part of the somatosensory system. Cutaneous receptors include cutaneous mechanoreceptors, nociceptors (pain) and thermoreceptors (temperature).
Explanation:
I think it will be heplful
Sheila, 32 years old, has been referred to a registered dietitian following her 6-week postpartum check-up following her third pregnancy, as she has concerns about her goals of weight loss and still being able to meet her daughter’s nutritional needs through breastfeeding. This pregnancy was complicated by gestational diabetes, as was her second pregnancy. She gained 37 lbs and states she understands the need to lose her pregnancy weight to reduce the risk of developing type 2 diabetes; she wasn't successful with losing the weight from her second pregnancy. Her daughter was 9 pounds 11 ounces at birth and has been gaining weight appropriately. Sheila breastfed her first two children until they were approximately 5 months old. Her current weight is 223 lbs and her height is 5'5". She reports she hasn't started exercising yet, but she was medically cleared to do so by her physician. Sheila's 24-hour recall shows an estimated calorie intake of 2700 kcal with limited fruits and vegetables, one cup of milk, and portions of high-fat and sugary foods. She has been maintaining her weight with her current calorie intake.
1. What is an estimated daily calorie intake that would allow Sheila to lose weight? (Explain/show how you came up with your number.
2. What daily calorie intake would be considered too low to support breast milk production? (Explain/show how you came up with your number.
3. a) Are there any vitamins and minerals Sheila might have inadequate intakes of based on her 24-hour recall? (Explain why the nutrients you listed are likely to be short in her diet.
b) How would you recommend she adjust her food intake to meet her needs for these nutrients? (Give specific examples of foods that will increase her intake of the nutrients you listed in the first part of the question.
4. What other recommendations do you have for Sheila to assist with her weight loss goals?
5. How will Sheila know whether her daughter is receiving adequate nutrition while she focuses on her goal of weight loss while breastfeeding?
Answer:
uhhh what im i supposed to do?
Explanation:
In the food web diagram which TWO organisms are secondary consumers?
How do you delete.a questuion
Answer:
There’s 3 grey dots and it will give you 3 options it’s report answer and delete it in the top right corner
brainleist?
Explanation:
Which tool would you use to predict the percentage of offspring that will have a specific trait?
• Microscope
• Flowchart
•Pedigree chart
• Punnett square
Answer:
Punnett square
Explanation:
Unlike the pedigree chart, which shows all possible offspring with a specific gene, the punnett square shows how many could have each genes.
Answer:
Punnett square
Explanation:
The type of bond that holds the monomers of a protein together?
Answer:
Peptide bond
Explanation:
The bond that holds together the two amino acids is a peptide bond, or a covalent chemical bond between two compounds (in this case, two amino acids).
what makes lipids/fats hydrophobic?
Answer:
Lipids are hydrophobic because they do not mix with water. Lipids are made of long chains of carbon and hydrogen. ... The partial charges on the water molecule cannot interact with the neutral lipid molecule and thus water and lipids do not mix.
Answer:
"this hydrophobic ("water fearing") nature of lipids is driven by the bonds between these many carbons and hydrogens. ... Thus, long chains of carbon-hydrogens bonds form a nonpolar molecule."
Earth’s________ change in a yearly cycle because of the tilt of its rotation axis and Earth’s________ around the Sun.
Earth’s seasons change in a yearly cycle because of the tilt of its rotation axis and Earth’s orbit around the Sun.
For your given bite of food, outline or use a flow chart to show what happens to this piece as it moves down the digestive tract. Take notes in your laboratory journal about how this bite is processed in the digestive tract. Mention key enzymes, describe mechanical and chemical digestion, and discuss absorption of nutrients and removal of wastes.
Answer: Mouth (amylase digest carbohydrates), esophagus, stomach (digestion of proteins by pepsine), small intestine (digestion of fats, proteins and carbohydrate by pancreatic enzymes and bile), large intestine (it receives the indigestible substances, absorbs the water and leaves the waste products called feces, peristalsis helps move stool into the rectum and feces are expelled from the body through the rectum and anus). Insulin facilitates glucose uptake by the cells and glucagon turns glycogen into glucose.
Explanation:
The gastrointestinal tract is a series of hollow organs joined together in a tube from the mouth to the anus. The organs found there are the mouth, esophagus, stomach, small intestine, large intestine and anus. The liver, pancreas and gallbladder are the solid organs of the digestive tract that also have important functions during digestion.
Digestion is important because the organism needs nutrients to function properly. (carbohydrates, proteins, fats, vitamins). So, the digestive system breaks down nutrients into small parts so that the body can transport and absorb them. During digestion, carbohydrates are broken down into simple sugars, proteins into amino acids and fats into fatty acids and glycerol.
The digestion of food begins in the mouth, where the food is chewed. The saliva possesses enzymes that already begin with the degradation of starches and sugars. The two most important proteins in saliva are amylase (produced by parotid glands) and mucin (produced by sublingual and submandibular glands). When the person swallows, the tongue pushes the food down the throat and the epiglottis folds over the windpipe to prevent choking and so the food passes into the esophagus. The food bolus then passes through the esophagus, where a process called peristalsis takes place to transport the food.
Then the food reaches the stomach, where the upper muscle in the stomach relaxes (esophageal sphincter) to allow the food to enter and the lower muscle of the stomach mixes the food with the digestive juice. This sphincter remains closed to prevent the content in the stomach from flowing back into the esophagus. Protein digestion begins in the stomach with the action of pepsin and continues in the small intestine with pancreatic enzymes such as trypsin (produced in the pancreas), chemotrypsin, aminopeptidases and carboxypeptidases. So, the stomach acid and enzymes act there, which are molecules created by our body that are responsible for breaking down the polymers present in food into smaller molecules so that they can be easily absorbed.
The food then passes into the small intestine and is transported along the small intestine by peristaltic movements. There, fats, proteins and carbohydrates are digested. The small intestine has three parts: duodenum, jejunum and ileum. The pancreas produces pancreatic juice and the liver produces bile, and these two juices are discharged into the small intestine. Bile helps to dissolve fats, which facilitates their assimilation. Meanwhile, the pancreatic juice completes the digestion of proteins and sugars, a process that began in the stomach, together with the intestinal juice produced by the walls of the small intestine. Once the food has been digested, its components must pass into the blood to be distributed to all the organs of the body. The inner walls of the small intestine has intestinal villi which are irrigated internally by blood vessels and they are responsible for the absorption of water and nutrients into the bloodstream. So, when the digestive enzymes have dissociated the large molecules into small components, the products are absorbed by the wall of the intestine. The mucosa of the small intestine also secretes the hormone secretin, which stimulates the pancreas to produce digestive enzymes.
Finally, the large intestine is involved, where bacteria (microbiota) in the large intestine can also chemically break down food. The large intestine includes the appendix, cecum, colon and rectum and it receives the indigestible substances from the small intestine, absorbs the water and leaves the waste products called feces. The colon, is the last structure to process food. Peristalsis helps move stool into the rectum and feces are expelled from the body through the rectum and anus.
After digestion, glucose will be available as a source of energy. Once it begins to circulate in the bloodstream, it will need the help of a hormone called insulin to enter the cells and provide them with the energy they need. Insulin is a peptide hormone secreted by the β cells of the pancreatic islets of Langerhans and it helps cellular glucose uptake by signaling cells to take in glucose from the blood. If the body has enough energy. On the other hand, glucagon turns a type of stored sugar called glycogen into glucose, which goes from the liver into your blood to provide energy.
Which gas is least abundant in Earth's atmosphere? EXTRA POINTS
A .A
B .B
C .C
D .D
what is the name given to a fruit with no seeds
Answer:
parthenocarpy
Explanation:
How does a model differ from a law or a theory?
a.
Models are universal
c.
Theories are only accurate under limited conditions
b.
Models are for all situations
d.
Models are only useful in limited situations
Please select the best answer from the choices provided
A
B
C
D
Answer:
models are universal. option A
Answer:
a. Models are universal
Explanation:
Which of the following is phosphorus not used for?
A. Cell membrane
B. Lipids
C. ATP
D. Nucleotides
The phosphorous is not necessary for lipids. The correct option is B.
What are lipids?A lipid is any organic molecule that is not soluble in water. They encompass fats, waxes, animal fats, hormones, and certain membrane constituents that serve as energy storage molecules and chemical messengers.
Even though the term "lipid" is occasionally used interchangeably with "fats," fats are a subcategory of lipids known as triglycerides.
Lipids also include fatty acids and their variants, in addition to other sterol-containing metabolites like cholesterol.
Adenosine 5′-triphosphate abridged ATP and generally represented without the 5′-, is a vital "energy molecule" found in all phosphorous-containing life forms.
The presence of phosphorous is also required by the cell membrane and nucleotides.
Thus, the correct option is B.
For more details regarding lipids, visit:
https://brainly.com/question/3498396
#SPJ2
What is the main form of energy in a Cheeto( before it is burned)? Radiant , Chemical, Motion, thermal
Answer:
I think it is chemical energy
*NO LINKS OR FILES*
What are 6 organisms that act as consumers in food webs?
Answer:
fish , cows, pigs, rabbit, horses, frogs , snake
Explanation:
cause ik producers are plants cause they make their own food and consumers - a person or animal that consume plants and other animals for food.
the list above of animals eat plants and other animals so their consumers
good luck! I hope I was correct
PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I think it's the second one
Explanation:
Convection occurs in earth’s atmosphere, oceans, and mantel
Answer:
what is the question?
Explanation:
Amino acids are all the following EXCEPT:
a.
Can act as buffers.
b.
All have the same general structure.
c.
Can do the same functions of proteins.
d.
Can bind together by condensation reactions forming protein polymers.
Why humans need stable,productive and balance environment?
A stable, productive and balanced ecosystem ensures a harmonious life
Which type of macromolecules helps a cell brake down food? Lipids proteins carbonhydrates or nucliec acids
Answer:
Proteins
Explanation:
There are four major biomolecules found in living system namely; proteins, carbohydrates, lipids and nucleic acids. These biomolecules serve different and unique functions in the body. PROTEIN is a biomolecule that helps in the break down of food substances in the body as stated in this question.
Specifically, these function of breaking down food substances is carried out by ENZYMES, which are biological catalysts that are proteinous in nature i.e. structurally made of proteins. For example, amylase enzyme breaks down starch, lipases break down lipids. Hence, since enzymes that perform this disintegration function are PROTEINOUS, then PROTEINS are the biomolecules that perform the role.
PLEASE HELP!
true or false: cardiac contractile cells have thick and thin filaments arrangement in sarcomeres.
Answer:
True
Explanation:
This is because sacromere is the basic unit of cardiac muscles which is made up of thin and thick filaments. Cardiac muscle is consist of the contractile cells of the heart which it's appearance is striated as a result of alternating thick and thin filaments which is composed of myosin and actin. Actin and myosin are both firm contractile protein filaments, the actin form the thin filaments, and myosin form thick filaments.
Identify the name of each of the pathways [A, B, C]
Answer:
C [Krebs cycle]
B [glycolysis]