Answer:B)
Explanation: Our oceans cover more than 70 per cent of the Earth's surface And can do much more things.
In an ecosystem, ocean currents carrying cold water, which can cool the air and land describes an effect which has a short-term climate change.The correct option is B.
An ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact with each other. The abiotic and biotic components are linked to each other through the nutrient cycles and flow of energy.
Energy enters the ecosystem by the process of photosynthesis .Animals play an important role in energy transfer by feeding on each other.As a result of this transfer of matter and energy takes place through the system .Within an ecosystem, climate changes are greatly influenced by the ocean currents carrying cold water, which are able to cool the air and land.
Thus, the correct option is B.
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Which is a goal of the Human Genome Project?
a to identify the 3 billion genes that comprise the human genome
b to sequence the genome of every living individual
c to address the ethical consequences of genomic research
d to measure the length of human DNA
Answer:
C. to address the ethical consequences of genomic research
Explanation:
Option A comes very close to the correct answer but is not the main goal. Although the scientists were after decoding our genome and mapping our genes and such, ultimate goal was also to address the ethical consequences of genomic research because your genome is your blueprint (i.e. your genome makes you).
Trace what happens to a piece of bread as it enters the mouth to the large intestine. Be sure to mention each organ of the digestive system and what happens to the bread in each part. ( can you put it in high school level)
Answer:
Bread is a carbohydrate.
Digestion of carbohydrates begin from the mouth.
As the bread is eaten and it is been chewed, the salivary amylase act on it.
This is also called mastication which is the breaking down of large pieces of bread into smaller pieces.
The salivary amylase break the monomeric bond between the dissacharides and starches by breaking amylose and amylopectin into smaller glucose.
When it's get to the stomach there is no further breaking down in the stomach because amylase do not get to the stomach because of stomach acidity. The strong peristaltic contraction of the stomach make it to form uniform chyme.
When the chyme entered the small intestine, the pancrease releases the pancreatic juice which contain amylase that breakdown dextrins into shorter carbohydrates. Additional enzymes are released which break maltose into two glucose and this enzyme is called maltase.
Sucrase breakdown sucrose into glucose and galactose.
There are cells in the small intestines which contain membranes that have protein transport which get monosaccharides and other nutrients to be absorbed in the blood.
The liver receive glucose, fructose and galactose and store them which is later use by the cells.
Explanation:
Digestion is the breakdown of large complex food into smaller pieces which can be easily absorbed by the body.
The goal of carbohydrates digestion is to breakdown complex carbohydrates and dissacharides into monosaccharide that can be absorbed into the body.
Lydia is walking in the woods at night to observe owls. She hears a rustling behind a tree, which startles her and causes her body to go into a fight or flight response as the sympathetic nervous system is activated. What is likely to happen to her digestive system during this response? A. The enteric nervous system will slow down digestion to conserve energy. B. The enteric nervous system will speed up digestion to use energy. C. The peripheral nervous system will slow down digestion to conserve energy. D. The peripheral nervous system will speed up digestion to use energy.
Answer: A. The enteric nervous system will slow down digestion to conserve energy.
Explanation:
Answer:
C
Explanation
......
What is the rate at which
producers make organic matter?
A. the rate of limiting nutrients
B. the rate of limiting factors
C. the rate of primary productivity
D. the rate of influxion
Answer:
b
Explanation:
Match each type of specialized cell to its functions.
muscle cells
carry oxygen throughout the body,
against pathogens
neurons
conduct electrical impulses; allow b
react to stimuli
epithelial cells
regulate exchange of chemicals, se
various substances
blood cells
help move the skeleton; help the he
and pump blood
Cells Functions
Muscle cells : Help move the skeleton; help the heart beat and pump blood
Neurons : conduct electrical impulses; allow body to react to stimuli
Epithelial cells : Regulate exchange of chemicals, secrete various substances
Blood cells : oxygen throughout the body, protect against pathogens
The cells in the human body have specialized functions and some of the specialized function of some of the specialized cells present in the human body are as listed above.
The muscle cells helps with the mobility of the body and also allows the heart to beat successfully while the Neurons of the nervous system transmits electrical impulses to the brain for proper reaction.
Hence we can conclude that the specialized cells and their functions are as listed above.
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Which of the following is mostly likely to result from an error during transcription A. it is formed by a particular sequence of amino acids B. it is read in groups of three nitrogenous bases C. it is made of the same components in all living organisms D. it is found in the base sequence of nucleic acids
Answer:
So I think you're trying to ask where transcription errors take place, which I would say is A.
Explanation:
DNA transcrption is when DNA is converted to RNA, which is then sent to ribosomes in the cell to make specific protiens(this is how viruses destroy cells, they use this system to make more viruses by causing viral RNA or DNA(transcripted)to be given to ribosomes) Anyway, transcritpion makes certain sequences of Amino acids for protiens, so an error is going to affect this area first, which can cause large systematic problems later.
According to the cell theory, which structure contains cells?
Answer:
All Living Organisms
Explanation:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells. Rudolf Virchow later made important contributions to this theory.
3. Centrosomes are present only in
a plant cells
b. animal cells
c. both a &b
d. only viruses
why doesn't
bromine react with sulphur?
Answer:
The bromine will oxidize sulfur compounds in which the valence of sulfur is lower than six to sulfate.
Explanation:
I need someone to help me
Answer:
The answer is D because it would first chop from below before getting up
Which of the following correctly describes connective tissue? made of electrically charged cells that send messages made of cells that are separated by a nonliving matrix made of sheets of cells that are tightly joined together and attached to a basement membrane made of cells capable of contraction
Answer:
the answer is D
Explanation:
I hope this helps
Explain what igneous rock is
Explanation:
Igneous rock is formed through the cooling and solidification of magma or lava.
Answer:Igneous rock is which is also called magmatic rock is the rock formed when hot,molten rocks crystallizes and solidifies.
Explanation:
Which is one place that glaciers are found?
A) in the ocean
B) in the tropics
C) at low altitudes
D) at high latitudes
Answer:
I believe it is at high latitudes
Explanation:
I say this because many glaciers are found in Greenland and Antarctica which are both located in higher latitudes
Glaciers are found at HIGH latitudes (Option D).
Latitude refers to the geographic coordinates which are used to indicate specific north-south positions on the Earth's planet.
Low latitudes are geographic coordinates found between the 0 degrees (Equator) and 30 degrees north-south, whereas high latitudes are found between 30 degrees and 90 degrees north-south positions.
At low latitudes, the energy from the sun is able to melt the polar ice.
Thus, glaciers are found at high latitudes because the highest latitudes get a minor amount of energy from the sun compared to low latitudes.
In conclusion, glaciers are found at HIGH latitudes (Option D).
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diff betwn light year and astronomical unit in 2 points
Answer ;
A light year is the distance light travels in a year and an astronomical unit is the average distance between the earth and the sun.
hope this can help you
The hydrolysis of GTP to GDP carried out by tubulin molecules Group of answer choices provides the energy needed for tubulin to polymerize. occurs because the pool of free GDP has run out. tips the balance in favor of microtubule assembly. allows the behavior of microtubules called dynamic instability.
Answer:
allows the behavior of microtubules called dynamic instability.
Explanation:
GTP help to stabilize the tip of the microtubule, thereby allowing more monomers to be added.
The hydrolyses of GTP to GDP carried out in the tubulin molecules allows the behavior of microtubules called dynamic instability.GTP hydrolysis changes the conformation of the tubulin molecules and cause the dynamic behavior of microtubules because it allows the cell to rapidly reorganize the cytoskeleton when necessary in which individual microtubules alternate between cycles of growth and shrinkage.
Plants absorb the greenhouse gas carbon dioxide during the process of _____.
Answer:
Photosynthesis
Explanation:
Plants convert carbon dioxide and water into sugar and oxygen through the process of photosynthesis. Plants absorb carbon dioxide from the atmosphere during photosynthesis.
trains between secretion and excretion
Answer:
excretion is the removal of something out of the body, while secretion is the movement of something from one area to another.
In which two places do divergent boundaries occur? land and oceans oceans and volcanoes volcanoes and lower mantle lower mantle and land
Answer:
The correct option is;
Land and oceans
Explanation:
Divergent boundaries otherwise known as a constructive boundary is a feature that is liner in shape and occur between the spreading centers of two separating tectonic plates where also magma rising from the mantle forms a new crust
Rifts are formed in continents (land)by divergent boundaries which enlarge into rift valleys. Active divergent boundaries can be located in mid-ocean ridge tectonic plate and volcanic islands are formed by divergent boundaries.
Answer:A
Explanation:
Henry was studying two populations of the same species of lizards. One population lived on an island and the other lived on the mainland. Both populations were affected by a hurricane that hit the island and the mainland with equal force. A year later, Henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. Which best describes a conclusion he might have reached? Gene flow greatly affects small populations, but large populations can recover. Genetic drift greatly affects small populations, but large populations can recover. Gene flow greatly affects large populations, but small populations can recover. Genetic drift greatly affects large populations, but small populations can recover.
Answer:
The correct option is Genetic drift greatly affects small populations, but large populations can recover.
Explanation:
Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population.
Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to randomly attach one of the alleles.
Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.
In the exposed example, the hurricane caused a disaster in both populations, reducing the number of individuals on the island and in the mainland. Henry saw a decrease in genetic variation in the island species, but not in the mainland species. This could be because the island population was smaller than the mainland population, so it was more affected by the disaster. The loss of some alleles in the population caused a decrease in genetic variation in the island population.
Answer:
The answer is B.
Explanation:
The bottom two answers don't make sense and the first one is unrelated.
In an experiment, a scientist decides to study the effect of exercise on cholesterol levels in people. He studies two set of people—those who exercise every day for an hour and those who don’t exercise at all.
............................ In this case, the statement that people who exercise for an hoour may have lower cholesterol level is HYPOTHESIS. ....................... The cholesterol level would be the DEPENDENT VARIABLE.
An hypothesis refer to a proposed statement based on prior knowledge, which is used as a starting point in scientific experimentation.
In scientific experiments, there are always two variables, independent and the dependent variable. The independent variable is the variable that is changed or controlled in a scientific experiment in order to determine its effects on the dependent variable.
I’m bored
Who knows how to do this
Answer:
Rill - a small groove in soil created by run off.
Gully - a channel of connected grooves created by run off.
Stream - one of the many channels created to form a river.
Tributary - series of connected channels that fills with water.
Explanation:
Hope it helps.
Answer:
Ew edgeunuity
Explanation:
What metal is is usually used for wires in electric circuits
Answer:
Typically, Copper is used for wires in electric circuits.
Dr. DeRidder lesions, or damages, the ventromedial hypothalamus in one group of rats and the lateral hypothalamus in another group. What effect might he expect on the eating behavior of each group of rats? Both groups should begin overeating and become grossly obese. Rats with ventromedial lesions should begin overeating; rats with lateral lesions should stop eating. Both groups should stop eating and perhaps eventually starve to death. Rats with ventromedial lesions should stop eating; rats with lateral lesions should begin overeating.
Answer:
Rats with ventromedial lesions should begin overeating; rats with lateral lesions should stop eating
Explanation:
The feeling of hunger stimulates a desire to eat.
The lateral hypothalamus is responsible for making an organism hunger and craves for food upon receiving any stimulation or signal that causes hunger.
A damaged to the lateral hypothalamus would mean the organism would not be able to sense hunger and thus, there would be no desire to eat. Hence, the rats with lateral lesions should stop eating.
On the other hand, the ventromedial hypothalamus is responsible for quenching hunger and signaling to the organism that it is full, hence, it would stop eating. However, when the ventromedial hypothalamus is damaged, the organism would not be able to tell when to stop eating. Hence, rats with ventromedial lesions should begin overeating.
A person who has a weakened immune system may not be able to fight against infection because..
pathogens may enter the body and cause illness.
phagocytes many enter the body and cause illness.
normal cells crowd out unhealthy cells.
of an increase in the production of antibodies.
Answer:
the answer is A
Explanation:
Which statement accurately describes dark matter? It is the same as dark energy. It is well understood by scientists. It does not emit electromagnetic radiation. It can be observed by shifts in red and blue light.
Answer:
Dark matter does not emit electromagnetic radiation.
Explanation:
Dark matter comparative to dark energy, has various differences. You could say that dark energy is put into action on a larger scale than dark matter, which is also why dark energy makes up 74 percent of the universe. Thus, dark matter ≠ dark energy.
Scientists have a lot to learn about dark matter, so we can't claim that this subject has been well understood about scientists. In fact, it is one of the least understood parts of the universe!
_______________________________________________________
Now dark matter can be defined as particles that do not absorb, reflect, or emit light. Thus, it can't be observed by electromagnetic radiation - nor shifts in red and blue light. At the same time it does not emit electromagnetic radiation.
Answer:
dark matter does not emit electromagnetic radiation.
Explanation:
O processo de excreção permite que o homem se livre de substâncias que são tóxicas e inúteis ou que estão em excesso. Em condições fisiológicas normais, uma pessoa saudável deve eliminar, na urina: a. Agua, uréia, sais minerais e pigmentos. b. Agua, ácido úrico, proteínas e glicose. c. Agua, uréia, glicose e sais minerais. d. Agua, proteínas, sais minerais e pigmentos. e. Agua, amônia, hormônios e polissacarídeos.
Answer:
a. Water, urea, mineral salts and pigments
Explanation:
The composition of urea of a normal healthy human consist of Water, urea, mineral salts and pigments. The water which is present in excess amount in our body will be removed by the body. Our body need salts in low amount which is taken from the food while the excess amount of salts and some pigments in the foods are also removed through the process of excretion and added into the urine. Due to these pigments, the color of urine is yellowish.
what is RNA editing?exactly correct answer
Answer:
a process of evolution
Explanation:
it happens when animal or plant cells make changes of molecules within the RNA .Such may include insertion ,deletion or substitution
:)
A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all.
Answer:
C
Explanation:
The complete question: A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all. In the experiment described in the scenario, which group represents the control group? A. Plant B B. Plant A C. Plant D D. Plant C?
The control group here would be plant D.
Control groups are usually used to minimize the effects of extraneous variables in the course of experiments and to ensure that the differences observed in different experimental groups are due to the effects of the independent variables.
In this case, all the plants were exposed to music except the control group because the aim of the experiment is to measure the effects of music on plant growth. Any difference in growth observed between those exposed to music and the control group can reliably be considered to be due to the music.
The correct option is C.
Answer:
d
Explanation:
Select the correct answer. A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. What are the chances of their children being albino? A. 3:4 children will be albino. B. All children will be albino. C. 1:4 children will be albino.
Answer:
C. 1:4 children will be albino.
Explanation:
Hope it helps.
Which two objects in space formed from the huge disk of ice and debris beyond the outer planets? Pluto and comets comets and Neptune Neptune and a solar nebula a solar nebula and planetesimals
Answer:
Pluto and comets
Explanation:
The two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
A Comets is made of dusty ice and they are known to orbit the sun. Comets are also known to contain gases such as carbon dioxide, water, methane and ammonia. Pluto is the farthest planet away from the sun. It also contains ice and some amount of dust which validates the chosen option.
Basedon astronomical findings, the two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
What are Comets?Comets are objects found in space which are composed of dust and ice.
Comets are known to orbit around the sun.
Comets are composed of gases such as carbon dioxide, water, methane and ammonia.
What is Pluto composed of?Pluto which once was classified a planet is known to be farthest planet from the sun.
Pluto is composed of ice and dust particles.
Therefore, the two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
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