Which evidence supports the big bang theory?
A. Planetesimals form in debris disks.
B. Most galaxies are moving toward us.
C. Uniform background radiation is detected in every direction.
D. Galaxies spin faster than they should based on visible matter.
Answer:
The correct answer to the following question will be Option C.
Explanation:
The above given theory seems to be an astrophysical concept of something like the visible universe from those in the early observed times to its corresponding large-scale development. Technical calculations and requirements including its expanding universe of that same universe put the Big Bang between about 13.8 hundred million years ago, which would also be known to be the period of the solar system.So other choices are not related to the given theory. So that Option C would be the appropriate choices.
Answer:
the answer is C the person above me is right but just in case its on egde
Explanation:
Which evidence supports the big bang theory?
Planetesimals form in debris disks. Most galaxies are moving toward us. Uniform background radiation is detected in every direction. Galaxies spin faster than they should based on visible matter.
Mutations are important for evolution because they _____.
Explanation:
Hey, your answer is :
Mutations are important for evolution because they increase genetic variation and the potential for individuals to differ.
Hope this helps.. Good Luck!
What type of blood vessels surrounds the alveoli; Select one: A. arterioles B. artey C. capillaries D. vein
Answer:
Option C
Explanation:
Capillaries surround the blood vessels of the alveoli where exchange of gases occurs.
=> Oxygen from the alveoli goes into the capillaries
=> CO2 and water from the capillaries goes into the alveoli so that it can be respired out.
Answer: C) capillaries
Explanation:
Process at the nephron
Answer:
The concentration of solutes is different in glomerulus, glomerular filtrate and urine is different because with time to time, the useful solutes are absorbed to the blood thus the concentration of useful solutes (that can be used by the body) goes on decresing in the glomerulus. After that, the unwanted solutes (most of which is Urea) remain at the end and are expelled out of the body.
A population of fish has 11,140 individuals. They have a death rate of 100 per year and a birth rate of 120 per year. Assuming 50 fish migrate into the population and 25 migrate out of the population per year, how many individuals would there be after the first year
Answer:
11,185 individuals
Explanation:
The number of individuals after the first year would be 11,185.
The change in the number of individuals in a population or population size is determined by the equation:
(B - D) + (I - E), where B = birth rate, D = death rate, I = immigration, and E = emigration.
In this case, B = 120, D = 100, I = 50, E = 25. Hence, change in the population size;
= (120 - 100) + (50 - 25) = 45
This thus means that the population would have increased by 45 individuals after the first year. Since there were 11,140 individuals initially, the total number of individuals after the first year would be;
11,140 + 45 = 11,185 individuals.
Which describes an effect that ocean currents have on short-term climate change?
A)Ocean currents increase the strength of prevailing winds, which can cool the air and land.
B)Ocean currents can carry cold water, which can cool the air and land.
C)Ocean currents increase hurricane activity, which can raise the temperature of the air and land.
D)Ocean currents can carry warm water, which causes hurricane activity and raises the temperature of the air and land.
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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A rabbit breeder has rabbits that exhibit three different coat colors: dark gray, chinchilla (a lighter gray), and albino. When cross breeding rabbits with these different coat colors, he finds that dark gray is dominant to chinchilla and albino, whereas chinchilla is dominant to albino. These phenotypic outcomes indicate that there are more than two alleles of rabbit coat-color genes and that they exhibit
Answer:
Multiple allelism
Explanation:
Multiple alleles occur whereby three or more alternative form of a gene which in this case study are dark gray, chinchilla (a lighter gray), and albino; are all present at a locus but only two of the alleles can be present in just one organism.
List and explain the functions of skeleton in man.
Answer:
The human skeleton performs six major functions:
1. support
2. movement
3. protection
4. Production of blood cells
5. Storage of minerals
6. Endocrine regulation.
Explanation
The major functions of skeleton system are body support, facilitation of movement, protection of internal organs storage of minerals and fat and body cell formation.
Describe the adaptations of the xylem.
Answer:
They lose their end walls so the xylem forms a continuous, hollow tube. They become a strengthened by a substance called lignin. Lignin gives strength and support to the plant
4.Suggest how triglycerides
are
transported in the blood.
Answer:
lipoproteins
Explanation:
In order for lipids to be transported in the bloodstream without clumping together, they need to be packaged into small particles called lipoproteins. Lipoproteins are soluble in blood, and allow cholesterol and triglycerides to be moved with ease through the bloodstream.
The air behind a cold front is cold and dry.
Please select the best answer from the choices provided
OT
OF
Answer:
True
Explanation:
The air behind a cold front is cold and dry. This is true because the cold front has a cooler mass of air which is usually cold and dry and it replaces at ground level a warmer mass of air.
This cycle continues and results in evaporation and precipitation and helps in balancing the atmosphere.
Does natural selection give organisms what they need
Answer:
La formulación clásica de selección natural establece que las condiciones de un medio ambiente favorecen o dificultan, es decir, seleccionan la reproducción de los organismos vivos según sean sus peculiaridades. La selección natural fue propuesta por Darwin como medio para explicar la evolución biológica.
Explanation:
Which statement best describes the cycling of carbon between the atmosphere and geosphere? Precipitation and condensation increasing the groundwater supply Glaciers melting due to an increase in global climate temperatures Volcanic activity releasing carbon into the atmosphere Trees and plants releasing carbon through respiration
Answer:
Volcanic activity releasing carbon into the atmosphere
Explanation:
In the geosphere, carbon enters when the dead and decaying matter takes the form of fossil fuels. From the biosphere, the carbon enters into the geosphere through these sources. A carbon reservoir is maintained in the geosphere through these sources. The process of weathering, erosion, and volcanic eruption exposes the carbon content of the geosphere into the atmosphere. Volcanic eruptions upturn the carbon content of the geosphere and expose them.
Answer:
Volcanic like the answer above
Explanation:
Took the test and got it right
please help me completing this biology table. 25 points !! :((
Answer:
The answers are
1cm = 0.01
Milli (mm)
1.0 × 10^-6
1nm = 0.000000001m
Hope this helps you.
Which layer in the model of Earth could be described as similar to oozing peanut butter moving slowly towards the surface when hot and falling back slowly towards the inner core when cool?
Select one: a. The upper mantle b. The lower mantle c. The crust d. The lithosphere
Answer: the lower mantle
Explanation:
Answer:
B. The Lower Mantle
Explanation:
I need help... Any kind soul please help me
Why do plants produce less oxygen during the night?
O A. Photosynthesis stops at night.
O. B. Photosynthesis only occurs at night.
O c. Cellular respiration only occurs at night.
O D. Cellular respiration stops at night
SUB
Answer:A
Explanation:
No explanation
True or False? Circle the correct answer for each statement. If a statement is false, explain why under the
statement.
1. The type of chemical bond within the water molecule is the ionic bond. True/False
2. Many of water's properties are due to its polar nature. True/False
3. When water naturally breaks apart, ions of Hydrogen (H) and Hydroxide (OH) form. True/False
4. The lower the pH number, the stronger the base a solution is. True/False
Answer:
F,T,T,F
Explanation:
1)false-(its a covalent bond)
A water molecule is formed when two atoms of hydrogen bond covalently with an atom of oxygen.
2)True-(water is a polar molecule)
Water is a polar molecule because the positive end attracts particles of negative charge.
3)True
water dissociates to form hydrogen ions (H3O+) and hydroxide (OH-) ions
4)false
Lower pH number means stronger acid, higher pH number means stronger base.
Which is the most common isotope of helium
Answer:
Helium-4
Explanation:
I hope it helped you
Answer:
Hey there!
Helium-4 Is the most common isotope of Helium.
Hope this helps :)
What happens to the molecules of a substance when heat is added to it ?
Answer:
The molecules start to energize.
Explanation:
When you heat up any molecule, the atoms and molecules start to vibrate more energetically. When this happens, it increases the space in-between the atoms. The substance expands and takes up more space as atoms move faster and farther away.
What are the expected clumping results when each type of blood is mixed with each antibody? The antibodies are Anti-A, Anti-B, and Anti-Rh. How do I know if the different blood types (A+, A-, B+, B-, etc) clump with any of the antibodies?
Answer:
Agglutination or clumping occurs when blood that contains the particular antigen is mixed with the particular antibody.
Explanation:
Clumping of blood types takes place thus;
A+ - Agglutination with Anti-A and Anti-Rh. No agglutination with Anti-B.
A- - Agglutination with Anti-A. No agglutination with Anti-B and Anti-Rh.
B+ - Agglutination with Anti-B and Anti-Rh. No agglutination with Anti-A.
B- - Agglutination with Anti-B. No agglutination with Anti-B and Anti-Rh.
AB+ - Agglutination with Anti-A, Anti-B and Anti-Rh.
AB- - Agglutination with Anti-A and Anti-B. No agglutination with Anti-Rh.
O+ - Agglutination with Anti-Rh. No agglutination with Anti-A and Anti-B.
O- - No agglutination with Anti-A, Anti-B and Anti-Rh.
Do dog sweat? If yes, can you explain?
Answer:
No, dogs can't sweat.
Explanation:
Because of this, they can overheat easier than humans, so be sure to keep you dog cool! Hope this helped.
Why do phospholipids form a bilayer in water?
Answer:
The hydrophilic head is attracted to water while the hydrophobic tail shuns water. ... The hydrophobic head shuns water and the hydrophilic tail attracts water. The hydrophobic tail is attracted to water while the hydrophilic head shuns water.
ANOTHER SHORT ANSWER:
The phosphate portions attract water, and the lipid portions repel water.
Explanation:
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The researchers participating in the experiments described above were assigned to conduct new experimentation, also on Leigh syndrome-positive mouse specimens. As a precursor step, it was decided to create a new population of Leigh syndrome-positive mice. What would be the option most likely to be successful in creating this population
Answer:
Induction of intentional mutations in the mitochondria of pre-fertilization ova
Explanation:
Leigh syndrome is a neurological disorder which affects the motor and mental state of organisms. The Mitochondria is known as the power house of the cell due to its production of energy for use by various cells in the body. Most neurological problems affect the motor and mental state as a result of a mutated mitochondrion. This explains why Induction of intentional mutations in the mitochondria of pre-fertilization ova Is correct.
Calculate the mean mass of this group of 5 students 34kg, 45kg, 46kg, 38kg and 62 kg
Answer:
[tex]mean \: = \frac{total \: sum \: of \: observation}{number \: of \: observation} [/tex]
So,
[tex] \frac{34 + 45 + 46 + 38 + 62}{5} [/tex]
[tex] \frac{225}{5} = 45[/tex]
So, the mean = 45 :)
Answer:
62
Explanation:
that guy is the fatty boy
A population of 40 killer whales lives in a bay that measures 2000 square miles. What is the population density of killer whales?
Answer:
.02
Explanation:
When finding population density, divide the amount of people, animals or things in the region by the total square miles. 40/2000 is .02.
A population is the size of the group of individuals residing at a place. A population of 40 killer whales has a population density of 0.02.
What is population density?Population density is the individual's concentration of a specific species at a particular geographical location. It allows the establishment of the ecosystem and health.
Given,
Number of individulas = 40
Size of the area = 2000
Density = Number of individuals ÷ Size of the area
= 40 ÷ 2000
= 0.02
Therefore, 0.02 is the population density of killer whales.
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In a laboratory activity, red-labeled glucose, blue-labeled water, and green-labeled ethanol are added to a solution placed over an artificial, pure phospholipid membrane. Which colors will be observed on the other side of the membrane after 10 minutes?
B and C ANSWER...
B) they are only present on the endoplasmic leaflet of the cell
C) they are only present on the cytosolic leaflet of the cell
Which of the following is the best definition of a prokaryote?
A. An organism whose cells each contain a membrane-bound nucleus.
B. A one-celled organism that does not have a cell wall.
C. An organism whose cells each have a cell wall.
D. A one-celled organism that does not have a membrane-bound nucleus.
Answer:
d
Explanation:
prokaryotes are characterized by not having a membrane bound nucleus and vise versa for eukaryotes.
Answer:
D. A one-celled organism that does not have a membrane-bound nucleus.
Explanation:
Prokaryotes are unicellular organisms that have a cell wall that surrounds the plasma membrane and gives the organism shape. It also does not have a membrane-bound nucleus to hold its chromosomes. The chromosomes of a prokaryote is found in a nucleoid, which is a part of the cytoplasm.
Hope that helps.
Gastroparesis is a condition that causes a partial paralysis of the stomach. The stomach has reduced ability to contract to move food through the digestive system. Some common symptoms of gastroparesis are abdominal pain, nausea, and feeling full after eating a small amount of food. What would be the most likely cause of this condition? A. damage to nerves that control the stomach B. lack of pancreatic juices and bile C. lack of enzymes in the small intestine D. damage to the mucus lining of the stomach
Symptoms of this condition include paralysis of the stomach muscles. Muscles are controlled by nerve impulses, therefore the most likely cause for this condition is (A.) damage to nerves that control the stomach
B. lack of pancreatic juices and bile -> this will lead to food not being chemically brokend down properly in the stomach and oils not mixing with water leading to malnutirion
C. Lack of enzymes in the small intestine -> this will also lead to food not being chemically digested and malnutrition
During the embryonic development, the trophoblast will develop into...
Answer:
These cells will develop into the chorionic sac and the fetal portion of the placenta (the organ of nutrient, waste, and gas exchange between mother and the developing offspring).
Explanation:
The cells that form the outer shell are called trophoblasts (trophe = “to feed” or “to nourish”).
hope this answer is correct ......