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iVinArrow [24]
3 years ago
15

An endangered species of wildflower has been reduced to a single small population in a mountain meadow. An early spring blizzard

buries and kills all but three of the remaining plants, one of which has a rare allele. The resulting evolutionary change in the population is an example of:
Biology
2 answers:
erastovalidia [21]3 years ago
6 0

Answer:

Parallel Evolution

Explanation:

It is because only three members are normal while one of them has a rare recessive allele. Due to parallel evolution, the recessive allele will now  become common as the other previously distinguished dominant alleles and now all the traits will be in a uniform equilibrium according to Hardy-Weinberg Theorem.

nexus9112 [7]3 years ago
4 0

Answer:

Bottleneck/ genetic drift

Explanation:

Bottleneck can be described as a situation whereby a  population of an organism is negatively affected through some certain events such as uncontrollable hunting of the specie,  destruction of habitat or environmental circumstances or disaster, and results to a reduction of the population.

Bottleneck is known to be a type of genetic drift, and its effect drastically reduces the population size of an organism. It also brings about a random change in the frequency of the alleles, which can be described as an evolutionary change.

In this case, what caused a reduction and evolutionary change of species of wildflower to mountain meadow is bottleneck.

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1. Ramachandran wants to understand brain functioning. How does he believe that we can better understand how the brain functions
Dvinal [7]
<h2>Answer 1: </h2>

The brain is an astounding three-pound organ that regulates all functions of the body, evaluates information from the outside world, and completes the essence of the mind and soul. Intelligence, creativity, emotion, and memory are some of the many things commanded by the brain.

<h2 /><h2>Answer 2: </h2>

Ramachandran's initial research was on human optical perception applying psychophysical techniques to draw precise inferences about the brain mechanisms holding visual processing. In the early 1990s, Ramachandran began to concentrate on neurological syndromes such as phantom limbs, body integrity personality disorder and the Capgras delusion. He has also added to the understanding of synesthesia and is known for inventing the mirror box.  

<h2 /><h2>Answer 3: </h2>

Among the choice given, being a combination of minds is something that sounds more interesting. It also leads to Ramachandran's study of mirror neurons. In this condition one might be able to think with different perspectives rather than focusing on the one and the intelligence level will also be quite high. Though this seems bit impossible but with the scientific technology it can be be achieved in near future.


<h2>Answer 4:</h2>

déjà vu is a feeling which makes you realise that what you're currently doing has previously happened. However, during this process, there is something your brain is attempting to tell you. Studying deja vu is more interesting as it can make you feel like you've identified someone, or been somewhere, in a past life, though it might be all in your head, according to science.


<h2>Answer 5:</h2>

Capgras delusion is a psychiatric disease in which a person endures a delusion that a friend, spouse, parent, or other close family members (or pet) has been substituted by an indistinguishable impostor. People experience Capgras syndrome by a dilemma within the brain, like atrophy, lesions, or cerebral dysfunction.


<h2>Answer 6:</h2>

A phantom limb is a sensation that an eliminated or missing part is still attached. About 60 to 80% of people with an amputation experience phantom sensations in their separated limb and the majority of the sensations are painful. Ramachandran suggested that phantom limb pain might be generated by changes in the brain — not, as most people thought, in the peripheral nerves near the phantom limb.


<h2>Answer 7:</h2>

After recognising that phantom limb pain started in the brain and that the brain could be remapped — Ramachandran understood he needed to trick patients' brains into unlearning the pain connected with their phantom limbs. He named this phenomenon "learned pain or learned paralysis". Ramachandran found this method useful as he was expert in neuro-department so he thought tricking the brain would be easy.


<h2>Answer 8:</h2>

Synesthesia is a state in which a sensory stimulus done in one modality provokes a sensation in a different modality. Researchers believe a kind of synesthesia exists in all our brains. For instance, we talk of certain smells of particular liquids--like nail polish--as being sweet, even though we have never tasted them. This might include the close neural links and cross activations.


<h2>Answer 9:</h2>

The holy grail of neuroscience is understanding consciousness. In his tedtalk video, Ramachandran talks about how to study the brain? Look at patients with continued damage in the brain. This provides you with a highly selective non-function in one region while other functions are intact. This way you can obtain out what the circuitry is doing.


<h2>Answer 10:</h2>

The brain is formed of the cerebrum, cerebellum, and brainstem.

  • Cerebrum; is the considerable part of the brain. It performs higher duties like interpreting touch, vision and hearing, as well as speech, thinking, emotions, knowledge, and fine control of movement.
  • Cerebellum; is found under the cerebrum. Its purpose is to regulate muscle movements, control posture, and balance.
  • Brainstem; acts as a relay centre joining the cerebrum and cerebellum to the spinal cord. It offers many intuitive functions such as breathing, heart rate, body temperature, wake and sleep cycles etc.

<h2>Answer 11:</h2>

Magicology is casting a spell on the mind. An incredible ability to control minds. Where one can manipulate people to an exceptional degree, drawing their consideration away from something and taking the benefit of that state. But scientists/ researchers consider it to be the best way to understand what's inside a person's brain/mind as they can get answers to all their questions while the patient is hypnotised.


<h3>*REMAINING ANSWERS ARE IN THE ATTACHMENT*</h3>
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6 0
3 years ago
Will partial budgets ever contain some fixed ownership costs
madam [21]

<span>Yes, partial budgets MAY SOMETIMES contain some fixed ownership costs depending on whether the proposed change includes any change in capital assets owned (i.e. the purchase or sale of capital assets). If any change in capital assets is included in the proposed change, then fixed ownership cost will change, and this should reflect on the partial budget.</span>

5 0
3 years ago
How might the diet of a person living on a rocky seacoast differ from someone living on a rich-soiled prairie?
Ivanshal [37]

The prairies are ecosystems where the grasses, herbs, and shrubs are the dominant vegetation type. It is one of the most intensive crop producing areas with highly valued productive soils. The diet of the people who lived there would be based on corn wheat, rice, soybeans, bean, peas, etc.

On the other hand, people who live on rocky seacost will most likely consume seafood such as mussels and barnacles.


5 0
3 years ago
Read 2 more answers
Number the steps of the binary fission process in correct order
kari74 [83]

Step 1:

The bacterium cell must copy its DNA so the new cells will have DNA. DNA or, deoxyribonucleic acid, has all of the information the bacterium will need to survive, so it is important it gets copied. The DNA is tightly wound so it is in a neat package called a chromosome.

Steps 2 and 3:

The bacterium now grows larger. This allows for some separation between the two DNA copies that are inside the cell. A division develops in the middle of the bacterium. This division eventually completely divides the bacterium in half. This is called cytokinesis.

Step 4:

Each cell is now called a daughter cell and they separate.

The steps of binary fission

binary fission

Binary fission results in two identical daughter cells. This is a type of asexual reproduction, or creating genetically identical offspring. If humans were able to reproduce using binary fission, it would look something like this: your mother or father would grow larger, and inside all of his or her DNA would be copied. Eventually your parent would split in half creating an identical clone.

5 0
3 years ago
Why is much of the world population currently experiencing a water crisis
Y_Kistochka [10]

Answer:

Because water is becoming scarce

Explanation:

Due to over using, global heating, etc. water is lessening.

I hope this helps :)

8 0
3 years ago
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