Answer:
what's the list? and it's probably plants if there's an option for it
Answer:
autotroph
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.
what would never be part of an mRNA strand?
Answer:
Uracil
Explanation:
Thymine would never be part of an mRNA strand.thus, option A is correct.
What is mRNA?Messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes).
It was also known that there are only four nucleotides in mRNA: adenine (A), uracil (U), guanine (G), and cytosine (C). Same three nucleotide base is also present in the DNA except thymine. Thymine is replaced with uracil in case of RNA. thus option A is correct.
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Identify the 3 types of natural selection indicates by each graph (please include written descriptions of each!!)
Answer:
Graph A: Directional Selection
Graph B: Stabilizing Selection
Graph C: Disruptive Selection
Explanation:
Natural selection as a driving force of evolution cam be defined as a process that a population of organisms undergo in other to become adapted to an environment and survive to produce offspring that are fitter.
Thus, the following graphs represents the three types of natural selection:
Graph A: Directional Selection
Directional selection occurs when one extreme trait is favoured over others by selective pressures.
The graph shows that only one extreme trait is favoured as the population that survives seem to have majorly a particular extreme trait.
Graph B: Stabilizing Selection
In this type of natural selection, neither of the extreme traits are favoured by selective pressures. Therefore, intermediate trait become favoured over the other extreme traits.
Graph C: Disruptive Selection
Selective pressures works against the intermediate trait while both extreme trait at the spectrum are well favoured, which become more established in a population against the intermediate trait.
Do you think a flowchart is the best way to explain how the nervous system works to someone who’s unfamiliar with the concept? Explain your answer.
Answer:
No, it’s not the best way. The flowchart shows the process step by step, but the intricacies would only be clear to a person who knows the major parts of the nervous system and how they interact with each other.
Edmentum and Plato sample answer
Describe your plan for how light intensity might affect the rate of photosynthesis? Help please I would really appreciate it
What part of the brain is highlighted in the diagram below?
Highlighter portion is at the bottom of the brain, forming a connection between the center of the brain and the spinal cord.
Brain stem
Pituitary gland
Cerebrum
Cerebellum
Based on the description provided, the highlighted portion of the brain is the brain stem, which is the first option. The brainstem connects the brain to the spinal cord, and it is located at the base of the brain.
What is the brain?The brainstem is the part of the brain that connects the brain to the spinal cord. It is located at the base of the brain and is made up of three main parts: the medulla oblongata, the pons, and the midbrain.
The medulla oblongata is the lowest part of the brainstem and controls vital functions such as breathing, heart rate, and blood pressure. The pons is located above the medulla and is involved in functions such as sleep, respiration, and facial movements. The midbrain is the uppermost part of the brainstem and is responsible for controlling movements of the eyes and body, as well as processing sensory information.
Hence, based on the description provided, the highlighted portion of the brain is the brain stem, which is the first option. The brainstem connects the brain to the spinal cord, and it is located at the base of the brain.
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Which is one way that DNA replication is similar in eukaryotic cells and prokaryotic cells?
a number of replication forks
b use of the enzyme DNA polymerase
c occurs in the cell nucleus
d occurs in the cytoplasm
Mendel was a careful researcher who studied the inheritance of certain traits in garden peas. What are some of the research practices Mendel used? Choose all that apply.
A. He crossed true-breeding pea plants.
B. He allowed eggs to be fertilized only by self-pollination.
C. He analyzed his data mathematically.
D. He controlled variables by studying one or two traits at a time.
Explain how prokaryotes (note that this is for prokaryotes and NOT eukaryotes) control gene expression.
Answer:
By Controlling transcription
Explanation:
Prokaryotic cells regulate their gene expression by controlling the amount of transcription. This is the only way of regulating the gene expression.
Unlike the prokaryotic cell, in eukaryotic cell, different compartments were formed for carrying out different cellular processes. Later on, transcription and translation were physically separated and were carried out in two different cellular compartments
How can a small mutation provide a small advantage to an organism?
Answer:
It provides an advantage because the mutation could be anything, which may give the organism an advantage no matter how random the mutation is, which it has to somewhat help that organism in life.
Hope this helps!
the illustration below shows a cellular process which of the following is shown in this illustration a gene expression b DNA replication c DNA translation d transcription
Answer:
dna replication
Explanation:
Answer B
Your heart pumping blood is an example of which category of energy use? Maintenance, movement, waste production, growth and reproduction
Answer: movement
Explanation:
The kinetic energy (KE) of intracardiac blood may play an important role in cardiac function.
Maintenance movement)
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.
give three example of fungi
Answer:
Yeasts
mold
mushrooms
Explanation:
Which of the following are functions of the reproductive organs in animals?
I. Produce sperm
II. Support the body
III. Protect the internal organs
IV. Make the eggs
I and II
II and IV
I and IV
II and III
Answer:
c
Explanation:
I and IV are the functions of the reproductive organs in animals.
What are Reproductive organs?
The female reproductive system serves a number of purposes. It aids in sexual reproduction in addition to enabling sexual activity.
The fertilized egg is then transferred to your uterus, where the lining has expanded due to the regular hormones produced during your menstrual cycle (also called your reproductive cycle).
The fertilized egg can implant into the thicker uterine lining once it's within your uterus and continue to grow there. Your menstrual period causes the uterine lining to shed if implantation doesn't occur. The female reproductive system also creates sex hormones that keep your menstrual cycle regular.
Therefore, I and IV are the functions of the reproductive organs in animals.
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Help me !!!!
What would be the mRNA sequence made from the strand: ATC-AGG
what are some similarities for prophase and telophase
Answer:
Both prophase and telophase have a complete set of chromosomes and organelles.
Which is not a physical change in the digestive system?
A. Chewing food
B. Moving food down the esophagus to the stomach
C. Breaking down food with gastric acid in the stomach
D. Moving waste out of the body
Answer:
C
Explanation:
it is chemical, not physical
What can be concluded from the graph?
The layers of Earth have different densities.
O P and S waves are absorbed in the core.
The layers of Earth do not have distinct boundaries.
O Pand S waves always originate in the mantle and travel through the core.
Answer:
Explanation: second option
What happens in crossing over? Why is it important for sexually reproducing organisms, and what is one of the consequences of errors in crossing over?
Answer:
Crossing over increases the genetic variation
Errors in crossover formation result in chromosomal rearrangements (duplications and deletions) and may also cause chromosome nondisjunction
Explanation:
Crossing over, also known as recombination, refers to the exchange of genetic material (DNA) between non-sister chromatids of homologous chromosomes during meiosis. Crossing over increases the genetic variation of the resulting gametes, allowing different genetic combinations to be passed from parents to offspring. Unequal crossing over is a type of error associated with chromosomal duplication and/or deletion events. Unequal crossing over occurs when homologous sequences are not paired precisely. Moreover, errors in crossing over may also cause chromosome nondisjunction, thereby leading to aneuploidies.
what is the process when an embryo embeds itself into the endometrium
Answer:
Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains attached to it until birth. The lining of the uterus (endometrium) prepares for the developing blastocyst to attach to it via many internal changes.
Explanation:
☁️ Answer ☁️
Implantation
1. Implantation is the process where the embryo attaches to the uterine lining (endometrium) and embeds itself into the tissue. This happens around Day 5 or so of the embryo’s development.
Link: https://www.remembryo.com/embryo-implantation/#:~:text=Implantation%20is%20the%20process%20where%20the%20embryo%20attaches,Day%205%20or%20so%20of%20the%20embryo’s%20development.
2. Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains attached to it until birth. The lining of the uterus (endometrium) prepares for the developing blastocyst to attach to it via many internal changes. Without these changes implantation will not occur, and the embryo sloughs off during menstruation.
Link: https://embryo.asu.edu/pages/process-implantation-embryos-primates
Hope it helps.
Have a nice day noona/hyung.
Which type of macromolecules helps a cell brake down food?
Answer:
amylase, sucrase, lactase, or maltase.
Explanation:
this is because of proteins are always broken down by the the enzymes pepsin and peptidase, and by hydrochloric acid.
Which of the following scientists are accredited with discovering DNA?
Group of answer choices
Einstein
Watson and Crick
Gregor Mendel
all of these
Answer:
Watson and Crick
Explanation:
How do invasive species usually affect the availability of natural resources in an ecosystem?
PLEASE HELP ME
Answer: Invasive species can harm both the natural resources in an ecosystem as well as threaten human use of these resources. ... Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats.
Explanation:
Which of the following statements is NOT true about DNA? *
1 point
There are about 20,000- 25,000 genes in DNA.
Genes are made up of smaller segments of DNA.
Genetic material is passed on from parent to offspring by DNA.
DNA is a set of instructions which determines the traits of an organism.
Answer:
DNA is a set of instructions which determines the traits of an organism
Explanation:
Which of the following statements about phylogenetic trees is not true?
A. They can show which groups of organisms are most closely related.
B. They can show which groups of organisms are more advanced than other groups.
C. They can show which group of organisms diverged longest ago.
D. They can show predictions of evolutionary relationships from the analysis of shared heritable traits.
Answer:
B. They can show which groups of organisms are more advanced than other groups.
They can show which groups of organisms are more advanced than other group is not true about phylogenetic tree.
It is used to identify the phylogenetic relationship between the organisms.It show which group of organism diverged longest ago.What is phylogenetic tree?It is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from common ancestors.It is based upon similarities and differences in their physical or genetic characteristics.To know more about phylogenetic tree here
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_____% of species present during the Permian survived into the Triassic.
Answer: 30
Explanation:
Climate change can alter where species live, how they interact, and the timing of biological events, which could fundamentally transform current ecosystems and food webs. Evaluate each of the changes that can occur within an ecosystem . Select ALL of the changes that could be caused by rising temperatures.
Answer:Answer is A) B) C) D)
Explanation:
We have that the functions of Temperature rise are
Acidification of OceanThe local weather exchange influences the timings of herbal activitiesMigration Entirely leaving of that ecosystem behindFrom the question we are told
Climate change can alter where species live, how they interact, and the timing of biological events,
which could fundamentally transform current ecosystems and food webs.
Evaluate each of the changes that can occur within an ecosystem .
ClimateGenerally these are changes that can occur within an ecosystem
Acidification of Ocean Food cycle is distructuredInvasive Species.The local weather exchange influences the timings of herbal activities There is a drastic enlarge of most important producers in Oceans like Cyanobacteria.Migration Entirely leaving of that ecosystem behindTherefore
We Find that
Acidification of OceanThe local weather exchange influences the timings of herbal activitiesMigration Entirely leaving of that ecosystem behindAre all functions of Temperature rise
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There are more than 300,000 species of plants that have been identified thus far in the world today; many new species are being discovered each year. In addition to providing most of the oxygen for land animals, plants do many other things for us. you will research the Internet and use reliable and credible scientific websites to investigate a specific plant species and choose a way (other than providing oxygen) that plants are useful to humans. [NOTE: Hot topic plants like Marijuana and Opium are off limits and cannot be discussed.]
Writing a full paragraph (a 150-words minimum) for your initial blog post discussing a specific species of plant and the benefit you chose. Be sure to describe what type of plant it is. Where is it found? How does it impact humans or other species? What role does it play in the ecosystem, etc.?
Answer and Explanation:
We can mention the advantages of the plants of the Fabaceae family, also known as legumes, such as beans, soybeans, peanuts and peas. First, we must mention how these plants have high nutritional values providing high levels of iron and nitrogen that are essential elements for human health. However, a benefit that these planats produce and that is important on a worldwide scale is the fixation of nitrogen in the soil. All living beings need nitrogen in their bodies, since nitrogen is a primary element in the composition of nucleic acids and proteins. Animals are able to ingest nitrogen from the vegetable diet, but vegetables cannot absorb nitrogen from the atmosphere or nitrogen from the soil, because they are not in molecular forms that plants can absorb. To reverse this, farmers put chemical fertilizers on the plantations, but these fertilizers pollute the environment intensely. It is in this scenario that the plants of the Fabaceae family are important. This is because these plants are able to associate with bacteria that can capture atmospheric nitrogen and place it in the soil, in the molecular form that all plants can absorb. This allows plants to have the necessary nutrients for their growth, reduces environmental pollution, decreases spending on agricultural production, promotes correct levels of nitrogen for human consumption and allows agricultural products to be healthier.
How does parental investment help reproductive success
Answer:
Explanation: investment in offspring by the parent that increases the offspring's chances of surviving and hence reproductive success at the expense of the parent's ability to invest in other offspring.
Please give me the correct responses.Only answer if you're very good at science/biology.Please don't put links to websites or else I'll report you.
Scientists believe Polar Bears have evolved from a group of Brown Bears that became an isolated population during a time when the Earth's climate began cooling down.What are some adaptations that make Polar Bears different from Brown Bears and what do you think caused the adaptations to occur?
Answer:
One adaptation is white fur. There was probably one white cub born to a brown bear mother, and the fur helped camouflage it for safety and later, hunting. This bear would have been more successful in hunting in the arctic, so it was more likely to reproduce and pass on the white fur genes. A second adaptation is the long claws of brown bears that are used for digging through vegetation would have shortened to be safer on ice. Polar bear paws also have little sticky bumps on their paws for gripping ice.
A third adaptation is that polar bears don't hibernate in winter. In winter, there is a lot more food available to them, so they need to stay awake. A fourth adaptation is their hair is also now water repellent, because most of their food comes from the sea. A fifth adaptation is in their digestive system. Polar bears don’t digest carbohydrates as well as brown bears, because their diet has much more fat than anything else. Polar bears hunt seals and can convert the blubber into fat for their bodies to live off of when food is scarce.