Answer:
Retina
Explanation:
The retina has rods and cones.
Rods help us see dim images and comes help us see bright and colored images.
PLS HELP 20 PTS
Write a supported hypothesis of how the body would react if the peripheral nervous system was shut down while the central nervous system continues to function.
Explanation:
The real magnitude of this challenge can perhaps be best judged by considering the structural and functional complexity of the human brain and the bewildering complexity of human behavior. The human brain is thought to be composed of about a hundred billion (1011) nerve cells and about 10 to 50 times that number of supporting elements or glial cells. Some nerve cells have relatively few connections with other neurons or with such effector organs as muscles or glands, but the great majority receive connections from thousands of other cells and may themselves connect with several hundred other neurons. This means that at a fairly conservative estimate the total number of functional connections (known as synapses) within the human brain is on the order of a hundred trillion (1014). But what is most important is that these connections are not random or indiscriminate:
They constitute the essential "wiring" of the nervous system on which the extraordinarily precise functioning of the brain depends. We owe to the great neuroanatomists of the last century, and especially to Ramón y Cajal, the brilliant insight that cells with basically similar properties are able to produce very different actions because they are connected to each other and to the sensory receptors and effector organs of the body in different ways. One major objective of modern neuroscience is therefore to unravel the patterns of connections within the nervous system—in a word, to map the brain.
Which statement correctly compares nucleid acids and corbohydrates?
Answer:
The correct answer is 4) They both contain carbon, but only nucleic acids contain phosphorous.
Explanation:
nucleid acids and corbohydrates both contain carbon, but only nucleic acids contain phosphorous. Nucleic acid and carbohydrates are essential biomolecules, which are important for the survival of life forms. DNA and RNA comprises the nucleic acid, which posses the genetic information of the living organism.
why does having genetically diverse population make a species more likely tto survive a change to the enviorment .
Answer:
the answer is that genetic diversity serves as a way for poulplation to adapt to changing envirements
Explanation:
i asked my collage science teacher
Answer:
They are more likely to have individuals with an adaptation.
Explanation:
How much of Earth is covered in water? O A. 50% O B. 95% O C. 75% O D. 25% SEN
Answer:
hi, option C is correct, 75% of the earth is covered in water.
please mark as brainliest :)
Answer: C. 75%
Explanation:
It is actually 71%, but 75% is a good estimate.
what is circulatory system?
Answer:
the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.
Explanation:
When amino acids are degraded for energy or glucose production, their amine groups are incorporated by the liver into ____.
Answer:
The correct answer is - urea.
Explanation:
In our body, to produce energy or produce glucose our body breaks the amino acids, it gets from proteins mainly. These amino acids are mainly breakdown into amine groups.
The human body has a unique ability to pack ammonia(amine group) by converting it to urea and incorporated and produced by the liver using 2 molecules of ammonia (NH3) and 1 molecule of carbon dioxide (CO2). This incorporated urea is then secreted from the liver and incorporated into the urine in the kidney for further process.
What happens first at each origin of replication?
enzymes eat nucleotides
enzymes unwind DNA
enzymes remove bases
enzymes kill viruses
Answer:
cell division takes place
Answer:
enzymes unwind the DNA at each origin of replication
Explain how fluctuations in abiotic cycles can influence populations.
Answer:
Populations are influenced by fluctuations in any of the abiotic cycles. The fluctuation of seasonal cycles can cause populations to hibernate, migrate, or breed. Organisms hibernate as a result of seasonal fluctuations that cause them to have a limited resource supply.
Fill in the blank question. The initial effect of a stimulus on a sensory receptor is a small, local change in membrane potential called a(n)
Answer:
The initial effect of a stimulus on a sensory receptor is a small, local change in membrane potential called a(n) receptor potential.
Explanation:
The process used by sensory receptors to transform the physical energy of the sensory stimulus into action potentials, the fundamental unit of information in the nervous system, is called sensory transduction. The entrance of positive charges towards the interior (mainly Na +), will cause a depolarization; while if there is an exit of positive charges from the interior (mainly K +) then hyperpolarization will occur. This change in membrane potential is called the receptor potential. A receptor potential is then a local potential that can sometimes represent the only response that results from the transduction process, for example in the taste sensory cell.
The picture below shows the devils Millhopper sinkhole in Florida.
The sinkhole was formed when:
A. River water eroded the soil
B. An underground cavern collapsed
C. A hurricane flooded low lying areas
D. Plant roots caused mechanical weathering of rocks
Answer:
B
Explanation:
If we poke a plant and an animal cell ,which one of them would lose its shape?
Answer:
animal cell
Explanation:
hope this will help you
on which surfaces was there more friction? how did you reduce the friction on objects?
Answer: Rougher surfaces have more friction between them than smoother surfaces. That's why we put sand on icy sidewalks and roads. You can't slide as far across ice with shoes as you can on the blades of skates (see Figure below). The rougher surface of the soles of the shoes causes more friction and slows you down.
Explanation:
Friction occurs because no surface is perfectly smooth. Rougher surfaces have more friction between them. Heavier objects also have more friction because they press together with greater force.
Hope it helps you if not sorry
There is a new trend to focus on dopamine receptor sensitivity rather than on dopamine itself because
Answer:
There is no scientific evidence to prove that people with schizophrenia ingest dopamine capable of accumulating excess in the body.
Explanation:
Although you did not specify that your question is associated with the origin of schizophrenia in people, we can see that this is the main topic of your question, due to its context. This is because scientists have been striving to find the origin of this disease, in order to be able to combat it in the early stages. Although many scientists believe that the origin of this disease is associated with excessive intake of dopamine, there is not strong enough scientific evidence to show that this is true. Because of this lack of evidence, filmmakers have focused on associating the origin of the disease with the sensitivity of the dopamine receptor and not with the dopain itself.
Help please!!!!!!!!!!!
Answer:
d
cause
Explanation:
Compare and contrast the cell structures / organelles found in plant and animal cells.
list 3 organelle/structures plant and animal cells have that are the same
list 2 organelles/structures plant and animal cells have that are different
Answer:
They both have a cell membrane.
they both have a nucleus
they both have the endoplasmic reticulum
Explanation:
One has a cell wall
one has a big vacuole and the other have many little vacuoles
Which answer best defines what the Lotka-Volterra predator-prey model mathematically describes?-The competition among many predator species for a dingle prey species.-The simultaneous effect of a predator population on a prey population and a prey population on a predator population over time.-The effect of a predator population on a prey population.-The capture efficiency and assimilation rate of a predator, which is dependent on the number of individuals in a prey population.
Answer:
The simultaneous effect of a predator population on a prey population and a prey population on a predator population over time.
Explanation:
The mathematical models of Lotka-Volterra equations explain the existing interaction between species in which prey and predator influence and affect each other. The model follows a few assumptions,
The ecosystem is isolated and closed. There is no migration. The whole individuals are reproductively equivalent. In the absence of the predator, prey shows an exponential growth rate. The prey is in the ideal environment. When there is no prey, the predator population decreases exponentially because of the lack of food. The predator environment is ideal, but it is limited by prey density. The predation rate is proportional to the encounters rate, which also depends on density. The predators affect the prey populations, inducing its decrease proportionally to the number of prey and predators present. The prey population also influences the predator population proportionally to the number of encounters between the two species.In these equations, the variable D is the number of predators, and P the number of prey items.
The parameters are always constant:
• r1: prey growth rate.
• a1: predator hunting success.
• r2: predator growth rate.
• a2: the success of the predator in hunting and feeding.
In nature, many factors affect interactions, such as dense-dependent factors and dense-independent factors. Also, in reality, there are stochastic factors. Stochasticity refers to the variability in the system involving those factors that are affecting or influencing population growth. Stochasticity might be related to good years and bad years for population growth.
In real situations, the compliance of the whole assumption does not occur. The previously mentioned constants might vary, constantly changing the interaction between the predator and the prey. These parameters change in different degrees, resulting in varying circumstances for both species.
All humans have shared biological needs, such as a need for food. However, in China people have an aversion to cheese, a food that is highly desired in the United States; and in the United States most people would find snake or dog meat inedible, even though both are enjoyed in China. How can this be explained
Answer:
The dietary differences between China and the US can be explained by the cultural, social and economic background that each of these countries had.
Explanation:
The main difference in food between countries is due to the culture of each country. This culture determines which elements are apt to be consumed and which are not. An example of this is dog food in China, which is very cultural, while the US and most Western countries do not welcome dog food because of its cultural context. Another example can be seen in the feeding of guinea-pig meat in Peru, however, other Latin American countries do not appreciate this type of meat.
The economic and social history of countries can also cause dietary differences. This is because these two factors change society and promote access to more modern and archaic foods.
which anwser choice best describes a community
Answer:
Community Definition. A biotic community, also known as a biota or ’biocoenosis’, is the group of organisms that live...
Types of Community. There are two main types of community. A major community is the smallest ecological unit which is...
Characteristics of a Community. The features within communities are highly variable, and there are a number of
Explanation:
The theory of natural selection states that
Answer:
Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
Explanation:
is variation always caused by the surroundings?
Answer:
Some variation is the result of differences in the surroundings, or what an individual does. This is called environmental variation.
Question:
Is variation always caused by the surroundings?
Answer:
Some variation is the result of differences in the surroundings, or what an individual does. This is called environmental variation.
Hope it helps you
Glucose molecules provide energy to power the swimming motion of sperm. In this example, the sperm are changingA) chemical energy into kinetic energy.B) chemical energy into potential energy.C) kinetic energy into potential energy.D) kinetic energy into chemical energy.E) kinetic energy into thermal energy.
Answer:
A
Explanation:
The correct answer would be that the sperms are changing chemical energy to kinetic energy.
In order to power the movement of the sperm cells, chemicals in the form of glucose molecules are hydrolyzed and the resulting energy from the reaction is used to power the movement of the sperm cells. Moving sperm cells possess kinetic energy. Thus, we can say that the chemical energy in the glucose molecules is converted to kinetic energy in the sperm cells.
The correct option is A.
what are the harmful effects of bacteria.
Answer:
Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more. If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them.
Explanation:
HOPE IT HELPS
Answer:
Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more.
If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them. This reaction can lead to the symptoms of swelling and inflammation that we see, for example, in an infected wound.
Given their size and complexity, biological molecules such as carbohydrates, proteins, lipids, and nucleic acids can also be referred to as ____________.
Answer:
This question lacks options, the options are;
A. Enlarged molecules
B. Macromolecules
C. Inorganic molecules
The answer is B
Explanation:
As mentioned in this question, carbohydrates, proteins, lipids, and nucleic acids are the basic biomolecules found in nature. They are all polymeric substances, hence, are made up of smaller units called monomers.
Asides from being biomolecules, these four molecules are also referred to as MACROMOLECULES based on their large size and complex nature. Macromolecules are molecules that are relatively large in size composing of an aggregate of monomer. Hence, these biomolecules are macromolecules.
The type of muscle fibers that are the largest, contain the most myofibrils and can generate the most powerful contractions are the:
Explanation:
fast glycolytic type (IIb) fibers
Which parts of the membrane would help a large carbohydrates molecules enter the cell?
A. Globular
B. Enzymes
C. Phosphorus groups
D. Fatty acids
How many genes make up the human genome?
four: adenine, thymine, guanine, and cytosine
23 pairs of genes
20,000–25,000 genes
3 billion genes
About 20,000–25,000 genes make up the human genome.
GENOME:Genome of an organism refers to the total genetic makeup of that organism. It includes all the genes present in the organism.
Genes are the basic unit of inheritance found on (deoxyribonucleic acid DNA).
A project called Human Genome Project worked to determine the sequence of the human genome and its constituent genes and it was estimated that humans have between 20,000 and 25,000 genes.
Learn more about genome at: https://brainly.com/question/20215717
C: 20,000–25,000 genes
Use the drop-down menus to complete each sentence. occurs when the immune system attacks the body. is often caused by obesity resulting from overeating and poor nutrition. is caused by DNA changes in a single gene and affects the nerve cells in the brain. is caused by uncontrolled cell growth. occurs when the pancreas does not produce enough insulin, or the body does not respond properly to it.
Answer:
The correct answer is -
1. Lupus
2 Cardiovascular disease
3. Huntingtons disease
4. Cancer
5. Diabetes
Explanation:
Lupus is one of the autoimmune diseases that takes place when our bodywork against ourself and harm cells and skin. When an individual has poor or bad nutrition and generally experiences obesity this cardiovascular disease occurs.
Huntington's disease takes place due to changes in DNA in the brain and affects neurons of the brain. Cancer is uncontrollable cell growth that can be lethal. If an individual is not able to produce enough amount of insulin, that lowers the glucose from the blood, will lead to cell diabetes condition
What concept includes the limiting factors that describe the zonation of flora and fauna along an elevational transect
Answer:
i dont know
Explanation:
because i have drop biologyWhat is produced during the Krebs cycle?
A. carbon dioxide
B. glycogen
C. oxygen
Links and random responses will be reported
Answer:
A. carbon dioxide
Explanation:
For one cycle, two molecules of carbon, three molecules of NADH, one molecule of FADH2 and one molecule of ATP or GTP are produced.
Immediately following the arrival of the stimulus at the axon terminal there is a short period called the ________ period during which no muscle tension is observed while the neurotransmitter is being released by exocytosis, diffusing across the synaptic cleft, and binding to its receptor to activate the muscle cell. relaxation latent contraction refractory
Answer:
Immediately following the arrival of the stimulus at the axon terminal there is a short period called the latent period.
Explanation:
When a stimulus reaches the terminal of an axon, a period known as the latent period begins. This period has a short duration and during it it is possible to observe the blockage of new stimuli in the nerve fiber. Thus, the new stimuli fail to trigger an impulse and no muscle tension to be observed.
While the latent period is not finished, the neurotransmitter is released through the action of exocytosis that moves until it gets access to the receptor capable of activating the muscle cell.
