Trees in the rainforest are so tall because they compete for sunlight. Hope this helps!
Answer:
It’s competition for sunlight. Trees in a dense forest are often tall and thin, as each tree is trying to reach sunlight.
Explanation:
Which of the following is an example of a scientific question?
a. Is experimenting on white mice right or wrong?
b. Should scientists make as much money as athletes?
c. Does tanning harm the skin?
d. Who is the most famous scientist in the world?
Please
"The first step of an action potential involves a large concentration of _____ passing through the cell membrane."
Answer: Sodium
Explanation:
An action potential is a wave of electrical discharge that travels along the cell membrane modifying its electrical charge distribution. Action potentials are used in the body to carry information between tissues, making them an essential feature for life.
They can be generated by various types of body cells, but the most active in their use are the cells of the nervous system to send messages between nerve cells (synapses) or from nerve cells to other body tissues, such as muscle or glands. There is always a potential difference or membrane potential between the inner and outer part of the cell membrane (usually ~70 mV). The charge of an active cell membrane remains negative (inside vs. outside) and varies within narrow images.
The difference in membrane potential is due to the differential distribution of ions (mostly chlorine and sodium on the outside of the cell, and potassium and organic anions on the inside). The cause of the action potential is the exchange of ions across the cell membrane. First, a stimulus opens the sodium channels. Since there are some sodium ions on the outside, and the inside of the neuron is negative relative to the outside, the sodium ions quickly enter the neuron. Sodium is positively charged, so the neuron becomes more positive and begins to depolarize. Potassium channels take a little longer to open; once opened, potassium quickly leaves the cell, reversing the depolarization. At about this time, the sodium channels begin to close, bringing the action potential back to -70 mV (repolarization).
In fluorescence microscopy, the _____ absorbs light energy from the excitation light and emits colored light.
Answer:
fluorochrome absorbs light energy
♡ Hope it helps ♡
WILL GIVE BRAINLIEST!! Please just take time to look! Thank you:) Under the right circumstances, the lysogenic cycle changes to the lytic cycle. Explain whether the lytic cycle can change to the lysogenic cycle.
Answer:
I don't think that lytic cycle can change to the lysogenic cycle.
Environmental stressors such as starvation or exposure to toxic chemicals may cause the prophage to excise lysogenic cycle and enter the lytic cycle.
Hope it helps.
what claim is the author making about the importance of stage 2 sleep?
Answer:
The correct answer is - sleeping soon after a major event would lead more likely to turn the experience into long-term memories.
Explanation:
According to the author sleep has two stage about half of the total sleeping time is consumed by the stage 2 sleeping. According to the passage sleep helps in assembling and arranging the memory on their importance which to save and which to eliminate.
In this passage also suggested that sleeping soon after a major occasion or event, and there was no proper time to mentally resolved, is more likely to make this as long-term memories.
How many electrons go on the 1 electron level
Why is evolution considered a scientific theory?
A. Because it is a hypothesis.
B. Because it is a guess made by scientists.
C. Because it was thought of by scientists.
D. Because it is supported by scientific data.
Evolution considered a scientific theory because it is supported by scientific data. Thus option D is correct.
What is evolution ?
A change in the characteristics of a species over several generations due to various cause such as natural selection.
Evolution has different components such as Natural Selection, Macro-evolution, and Micro-evolution.
Natural selection is the method that drives evolution of a species. The organism can undergo adaption in a given habitat to increase the survival rate more than others.
Several factor can influence evolution such as gene flow refers to change in allele frequency in a population due to immigration and emigration.
secondly genetic drift refers to an existing population produces a new and smaller population with less variation in a random manner.
Mutation also add a favorable allele leads to increase in frequency in a population.
Sexual selection refers to selection of successful trait for mating which increase the frequency.
Thus option D is correct.
Learn more about evolution, here:
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Answer: this it fasho
Explanation:
A teacher cut an apple into three wedges of the same size.
She dipped one wedge in lemon juice, dipped another in
water, and left one alone. Then she left the wedges on a
paper towel on her desk. After 1 hour, only the wedge that
had been dipped in lemon juice was still yellow. The other
two wedges had turned brown.
What is the responding variable in this experiment?
I am not entirely sure what you mean by "responding variable" but I'm going to guess it was the vinegar since it has been used as a perservative for years.
Hope that helps in some way.
Starting in 1850 when Europe become industrialized, the frequency of melanic forms of the peppered moth in populations ______ until they made up ______ of some population.
Answer:
increased; almost 100%
Explanation:
The peppered moth witnessed a change in its color and the number at the end of the eighteenth century. The reason behind this was the Industrial Revolution that led to an increase in air pollution. With the increase in air pollution, the dark-colored moths increased in the number. Later, when air pollution decreased, the light-colored moths started to predominate. It was in 1895 that the number of dark-colored moths increased to the maximum.
A car drives with a constant speed of 28 miles per hour. How far can it travel in 2 3/4 hours?
Answer:
77 miles.
Explanation:
28 miles per hour.
to break it up.
1 mile = 28
1 mile = 28
that is a total of 56 miles in 2 hours.
3/4 of 28 is 21.
21 + 56 = 77
someone took the last cookie jar last night the last person to leave the scene is the culprit. Who was it?
clues:
the butler walks to work
the handyman rides a bike
the cook rides a motorcycle
the maid drives a car
the nephew has a seeing-eye dog
Answer: nephew, it didnt say that he left the place yet
Which processes form glaciers
Glaciers configure the land through the processes of abrasion, weathering, passage, and deposition creating a specific landform.
What are Glaciers?A glacier is the deposition of crystallized ice, snow, and often liquid water that originates on land and moves down under the effect of its own gravity and mass.
Glaciers are formed by the action of crystalline ice that remains in the same area over a long period of time. A layer by layer deposition of snow accumulates compression to previous layers, and sometimes there is a passage of liquid that is a melted form of snow under the effect of its own mass and gravity.
Therefore, glaciers are formed by four major processes which are described above.
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What was the first animal to orbit the earth?
NEED HELP ASAP
Which characteristic of life should be the title of this graph
Answer:
Growth
Explanation:
What molecule is produced as a byproduct when two or more monosaccharides are combined together?
Answer; Disaccharide is form when two monosaccharides undergo a dehydration reaction ( or a condensation reaction).
A tree or plant can live without its bark or epidermis. TRUE OR FALSE
Answer:
false
Explanation:
Question 7 (1 point)
Critique the following hypothesis. The width of a rainbow is proportional to the number of raindrops that fall in a storm.
Answer:
Explanation:
Droplet Size. The colors we see of the rainbow depends on the size of the raindrops. If the drops are large, 1 millimeter or more in diameter, the rainbow will be bright with well defined colors where red, green, and violet are bright but having little blue. As the droplets get smaller, red weaken
In a population of seahorses, red seahorses on average produce 125 offspring and brown seahorses produce 75 offspring. What is the fitness of the brown phenotype?
Match the characteristics to the correct phylum. organisms lack symmetry organisms have specialized stinging cells adult forms are sessile two types of body plans exist—polyp and medusa organisms obtain food by
Answer:
The organisms phylum is cnidaria of kingdom animalia.
Explanation:
Phylum cnidaria are Majorly aquatic organisms that live mostly in Marine habitats.
They are radially symmetrical.
They are multicellular organisms and have few tissues.
They have internal body cavity and mouth.
They have specialised stinging cells called cnidocytes which has nermatocysts.
They reproduce either sexually or asexually.
The adult exist in two different forms , Polyp and Medusa.
They are canivorous or filter feeders.
Examples are corals, hydras, jelly fishes, sea anemones e.t.c.
Difference between sensory and motor neurons ???
Answer: Sensory neurons are neurons responsible for converting external stimuli from the environment into corresponding internal stimuli. Motor neurons are neurons located in the central nervous system (CNS); they project their axons outside of the CNS to directly or indirectly control muscles
Answer:
Sensory Neuron
Neurons that carry sensory impulse from sensory organs to the central nervous system are known as sensory neurons They are located in the dorsal root ganglion of the spinal nerveIt is unipolarComprises of a short axonAn adult has an average of 10 million sensory nerves in the bodyFound in eyes, skin, ears, tongue and nosemotor neuron
A neuron that carries motor impulses from the central nervous system to specific effectors is known as motor neurons.They are located in the ventral root ganglion of the spinal cord.It is multipolarComprises of a long axonHalf million of motor neurons are found in the bodyFound in muscles and glands3. Enzymes, which influence chemical reactions, are complex types of:*
carbohydrates
O proteins
nucleic acids
lipids
occobarid
olysaccharides as
Answer:
proteins
Explanation:
proteins
hope I helped
What is an "asterism?"
A popular group of stars or pattern in the night sky
A star shaped icon on your keyboard
A constellation in the southern hemisphere
A constellation only visible at certain times of the year
Answer:
An "Asterism" is best defined as: A, A popular group of stars or pattern in the night sky
Explanation:
Essentially, an asterism (a recognizable pattern of stars) is part of a constellation, a larger group of stars that cover a region/area of the sky. For example, the Big Dipper is an asterism that is part of the constellation Ursa Major (aka Great Bear).
Hope this helps!
During which period of Earth's history did four-legged animals appear on land?
Answer:
The dinasaur age
Explanation:
ROOOAARRR
how many times the larva of silk worm moult?
Answer:
The larva is the silkworm caterpillar. Since the silkworm grows so much, it must shed its skin four times while it is growing. These stages-within-a-stage are called instars.
Explanation:
describe the following conditions: diuresis, glycosuria and polyuria
Answer:
Explanation:In the absence of diabetes mellitus and diuretic use, the most common causes of chronic polyuria are primary polydipsia, central diabetes insipidus, and nephrogenic diabetes insipidus. Hypernatremia can indicate central or nephrogenic diabetes insipidus. Hyponatremia is more characteristic of polydipsia.
The most common cause of polyuria in both adults and children is uncontrolled diabetes mellitus, which causes osmotic diuresis, when glucose levels are so high that glucose is excreted in the urine. Water follows the glucose concentration passively, leading to abnormally high urine output.
Type the word
Definition
Usage
Answer: definition is the fact of being used
Explanation: your using that object so it’s being used
Answer:
Definition Usage
Explanation:
how is radiation transformed into other forms of energy
Radiation can be defined as the energy that comes from a source travelling at the speed of the light and having a electric and magnetic field around it.
Radiation is capable of even travelling through the vacuum. It travels in the form such as the electromagnetic waves.These waves, such as the sun rays, strike the Earth surface or any other object are converted into different forms of energy.Radiations are absorbed by different organisms or objects and then utilized by converting them in different forms of energy.This conversion is a heat transfer.Thus, radiations are converted to different forms of energy using heat transfer process.
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explain how migration, selection, and adaptation might account for various groups of animals coming into existence after the flood
Answer:
As the kinds of animals on Noah's ark were dispersed, the great variability designed into their gene pool allowed them to interact with the environment. The evidence shows that the emergence of new varieties and species can occur in some organisms in as little as five to ten generations an observed fact that evolutionists cannot explain.
Earth scientists study the history of the earth. What are some ways that they determine the age of the earth or geologic features (for example, what did William Smith do?)? Which techniques are most accurate to help with this process? How has our understanding of the age of the earth changed over time
Answer:
To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.
Explanation:
Renewable energy
Non renewable energy
Pros:
Cons:
Answer:
Renewable Energy
Pros: Cleaner than fossil fuel, an abundance out there, can be used without interruption
Cons: Takes alot of energy to produce, may be seasonal and competes with food production
Explanation: