Adaptive radiation is a process of evolutionary diversification in which a single ancestral species diversifies into many descendant species adapted to different ecological niches. In the study of the evolution of flowering plants, or angiosperms, the adaptive radiation of flowering plants has led to the diverse array of species that we see today.
There are several factors that could explain the adaptive radiation of flowering plants. One of the most important is the evolution of specialized structures for reproduction and seed dispersal, such as flowers and fruits.
These structures allow flowering plants to attract and manipulate animals for pollination and seed dispersal, increasing their chances of reproducing successfully.
Another important factor is the evolution of diverse growth forms, such as trees, shrubs, and herbaceous plants. This allows flowering plants to occupy a range of habitats and to compete with other plant and animal species in those habitats.
A third factor is the evolution of novel adaptations, such as chemical defenses and specialized structures for nutrient and water acquisition. These adaptations allow flowering plants to better survive and thrive in different ecological niches, leading to further diversification.
Finally, geological events, such as the breakup of continents and changes in climate, have also played a role in the adaptive radiation of flowering plants. These events have created new habitats and niches for flowering plants to colonize and adapt to, leading to further diversification.
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Please help me.
Protists can organize themselves in 3 main ways. List those ways:
a)
Unicellular (all by themselves)
b)
c)
Protists can organize themselves in 3 main ways which include unicellular, parasitic and or nonparasitic, and plant or animal like protists.
What are Protists microorganisms?Protists microorganisms are microscopic unicellular forms of life that may have features which are similar to plants and or animals, and they may be parasitic in this habit of life or non parasitic, which are characteristics that help to classify them.
Therefore, with this data, we can see that Protists microorganisms have different features which are very useful to categorize them such as for example the habit of life (i.e. parasitic or non parasitic).
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Each amino acid is coded for by several different codons. How might this offset transcription or translation errors?
Errors may occur during transcription or translation, but since there are numerous alternative codons used to code amino acids, the error would be compensated for.
Because there are many codons present, even if an incorrect match or pairing of the letters occurs, another type of codon having those letters would be there, which results in not being an issue or becoming a harmful form of mutation, this would counteract the transcription and translation faults. In essence, it would reduce the likelihood that a transcription or translation process would result in the formation of an incorrect kind of protein.
A codon is an array of three nucleotides in RNA or DNA that corresponds to a certain kind of amino acid or stop signal. While errors could happen during transcription or translation, the fact that each amino acid is coded by a variety of distinct codons can prevent them.
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Have An Amino Group And A _____________ Group Attached To The Central _______________. There AreFor each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once. Proteins are ______________ built from amino acids, which each have an amino group and a _____________ group attached to the central _______________. There are twenty possible _______________ that differ in structure and are generally referred to as "R." In solutions of neutral pH, amino acids are _______________, carrying both a positive and negative charge. When a protein is made, amino acids are linked together through _______________, which are formed by condensation reactions between the carboxyl end of the last amino acid and the ___________________ end of the next amino acid to be added to the growing chain.a: amino b: ionized c: polypeptidesd: alpha-carbon e: length f: proteing: carbon h: noncovalent i: R groupj: carboxyl k: peptide bonds l: side chainsm: hydroxide
Amino acids, which each have an amino group and a carboxyl group connected to the core alpha-carbon, are the building blocks of proteins.
Have An Amino Group And A Carboxyl Group Attached To The Central Alpha-carbon. There Are Twenty Possible R Groups That Differ In Structure And Are Generally Referred To As "R." In Solutions Of Neutral pH, Amino Acids Are Ionized, Carrying Both A Positive And Negative Charge. When A Protein Is Made, Amino Acids Are Linked Together Through Peptide Bonds, Which Are Formed By Condensation Reactions Between The Carboxyl End Of The Last Amino Acid And The Amino End Of The Next Amino Acid To Be Added To The Growing Chain.
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Which blood cells are biconcave and lack a nucleus and other organelles?
Erythrocytes are biconcave and lack a nucleus and other organelles.
Small, microscopic red blood cells have crucial physiological roles for the body in the blood. They are produced in the red bone marrow of long bones. They account for 32–50% of the total volume of blood.
The oxygen and carbon dioxide that are present in the blood are mostly transported by red blood cells. They can fit more haemoglobin molecules inside, which implies they can carry more gas, by removing the majority of organelles and the nucleus. Additionally, the biconcave shape enhances the cell's surface area, allowing for a faster passage of oxygen and carbon dioxide out of the blood cell and into the body's tissues.
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13. How did Kettlewell test his hypothesis?
HELP I HAVE TO TURN THIS IN NEXT PERIOD
Kettlewell conducted an in-depth investigation of bird predation on moths to verify his theory regarding the evolutionary basis of industrial melanism.
When he carried out this investigation, Kettlewell tested what exactly?Kettlewell came to the conclusion that industrial melanism, which darkened the hue of the trees, was brought on by pollution from the companies in Birmingham. As a result, the moths with the recessive features had a higher likelihood of surviving due to the concealment.
The goal of Kettlewell's experiment was to determine whether a single instance of natural selection could be explained in terms of a particular process or agent, in this case, bird predation. Biologists would not have abandoned the theory of natural selection if it had failed. Most biology textbooks include Kettlewell's experiment as an illustration of how evolution works.
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what characterizes rh-factor as a simple dominant trait?
RH-factor is dominant trait that mean that a person only needs one copy of the Rh factor gene to be express.
RH- factor is a specail type of protein set up on the face of red blood cells. It's important in determining a person’s blood type. People who have the protein are appertained to as RH-positive and those who don't have the protein are appertained to as RH-negative.
RH- factor is important for blood transfusions because if someone with RH-negative blood receives RH-positive blood, their body will fete it as foreign and then produce antibodies to attack it. This can be dangerous and lead to serious medical complications.
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Technique which sends electrical impulses into muscles of the body to promote healing and pain relief
TENS treatment is a method that uses electrical impulses to relieve pain and speed up healing in the body's muscles.
By passing electrical impulses through electrodes with a vacuum-like form that are affixed to the painful location, TENS (Transcutaneous Electrical Nerve Stimulation) is a technique for reducing pain.
The TENS device is powered by electricity and features electrodes that resemble a vacuum that are directly affixed to the skin. The gadget will produce minute electrical impulses to the location where the electrodes are positioned when it is switched on and controlled, simulating vibration and massage.
Afferent pain signals that go from the skin to the spinal cord and ultimately to the brain can be lessened by electrical impulses. Melzack and Wall are used with a comfortable intensity in conjunction with the fundamental idea of Gate Control.
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What is the proper way of transferring the inoculum into the tube?
The proper way of transferring the inoculum into the tube is by sterilization the inoculum.
Sterilization helps insure that no pollutants are transferred with the sample. Next, use a sterile pipette or hype to transfer the inoculum. Make sure that the pipette or hype tip is also sterile. Take care to avoid contact with the innards of the tube. When transferring the inoculum, insure that it's unevenly distributed throughout the tube.
To do this, sluggishly draw the inoculum up and down within the tube several times. Eventually, cover the tube with a sterile lid or cap, and store the inoculum according to the specific requirements of the sample. This process should be carried out in a sterile utensil similar as a laminar inflow hood, to help help impurity.
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Choose your favorite food. Describe its pathway through the digestive system. Make sure you include in your description the following terms: teeth, salivary gland, bolus, amylase, pepsin, small intestine, villi, stomach, chime, large intestine, esophagus, liver, and pancreas
a neuron that has responded to a stimulus causes decreased activity in neighboring neurons in which process?
lateral inhibition
Lateral inhibition is the process by which stimulated neurons inhibit the activity of nearby neurons. In lateral inhibition, neural signals to neighboring neurons are minimized. Lateral inhibition allows the brain to manage environmental input and avoid information overload.
The firing neurons inhibit stimulation around them. Therefore, only neurons are most stimulated and least inhibited in response. Lateral inhibition plays an important role in visual perception by increasing contrast and resolution of visual stimuli. This happens at various levels of the visual system. Lateral inhibition occurs in sensory systems of the body including olfactory, visual, tactile, and auditory systems.
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1) Explain the changes in heart rate between conditions. Describe the physiological mechanisms causing these changes
The autonomic (involuntary) nerve system's two branches regulate heart rate. SNS and PNS, are sometimes known as the parasympathetic and sympathetic nervous systems (PNS).
To increase heart rate, the sympathetic nervous system (SNS) produces the catecholamines epinephrine and norepinephrine. The hormone acetylcholine is released by the parasympathetic nervous system (PNS) to reduce the heart rate.
Higher heart rates could be a sign of poor heart health and the extra strain of been put on the heart's ability to pump blood. This may also point to issues related to cardiac disease.
The capacity of the heart to contract and how long it takes for the heart to fill with blood. The parasympathetic neural system becomes more active, and possibly the sympathetic nervous system becomes less active, which lowers the heart rate.
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