Answer:
1,2,3,4,5 and 6.
Explanation:
If a solution having pH values such as 1,2,3,4,5 and 6 indicates that the solution has the highest concentration of hydrogen ions because below pH 7 the concentration of hydrogen ions increases and the solution tends to more acidic. Highest concentration of hydrogen ions are present in a solution having pH 1 and when the pH value increases from pH 1, the concentration of hydrogen ions decreases.
which scenarios are examples of artificial selection?
A: breeding certain cows for increased milk production
B: farmers planting seeds from only most productive crops
C: bacteria becoming more resistant to human antibiotics
D: creating a new breed of dog that js hypoallergenic
Answer:
D
Explanation:
Science has altered it
how does sequencing genes provide evidence for evolution
Answer:
how does sequencing Gene's brain function as an instrument for me and my
As the ability to sequence the nucleotides making up DNA has improved, it also has become possible to use genes to reconstruct the evolutionary history of organisms. Because of mutations, the sequence of nucleotides in a gene gradually changes over time.
Why is unlined landfill a point source pollution
PLEASE HELP
Answer:
Septic systems is the BEST example of a non-point source of water
pollution.
Explanation:
Residue from inappropriately oversaw building destinations, harvest and woods terrains, and disintegrating streambanks. Salt from water system practices and corrosive seepage from surrendered mines. Microbes and supplements from domesticated animals, pet squanders and broken septic frameworks. Residue from inappropriately oversaw building locales, harvest and woods grounds, and disintegrating streambanks.
A cross between a white rooster and a black hen results in 100% blue offspring. When two of these
blue offspring are mated, the probable phenotypic ratio seen in their offspring would be
A) 1:1:2 B) 3:1 C) 1:2:1
D) 2:1:1
Answer:
c
Explanation:
they each contain a gene from their father, their mother, and themselves, since they are both blue there will be 2 blue genes, 1 black and 1 white
A cross between a white rooster and a black hen results in 100% blue offspring, so when two of these blue offspring are mated, the result is 1:2:1, which is option c, as 1 is white, 2 are blue, and 1 is black.
What is the significance of the genetic crossing?Due to incomplete dominance, genetic crossing occurs between two animals, such as one black hen and one white rooster, and the offspring are blue. When these two heterozygous blue birds cross, a total of four hens and roosters offspring are formed: 1 is black, 1 is white, and 2 are blue and this genetic crossing can also increase genetic diversity within a population due to meiosis.
Hence, a cross between a white rooster and a black hen results in 100% blue offspring, so when two of these blue offspring are mated, the result is 1:2:1, which is option c, as 1 is white, 2 are blue, and 1 is black.
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1. The fact that the population of moths includes both brown and green moths is
an example of *
a, selection
b. overproduction
C. competition
d, variation
e, speciation
The fact that the population of moths includes both brown and green moths is an example of variation.
What is Population?The population is the group of individuals belonging to the same species living in the same area at a particular time.
The population of moths consists of two types of genetic variations, which means there is an existence of two different alleles that are responsible for the expression of two different colours (brown, green) in the population of moths.
Therefore, the fact that the population of moths includes both brown and green moths is an example of variation.
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PLEASE I NEED HELP NOW!! this is from a Gizmo//Mutation and Selection, Compare the fitness to percentages to the insect colors. How does fitness relate to the color of the insects
Fermentation is a process where
organic compounds are broken down in the presence of oxygen
most of the ATP is made in cellular respiration
sugars are created in photosynthesis
organic compounds are broken down in the absence of oxygen
Answer:
organic compounds are broken down in the absence of oxygen
Explanation
for example alcoholic fermentation done by Saccharomyces Cerevisae
C6H12O6-->2CO2+2C2H5OH
Which 2 cells would be more genetically similar to each other?
The cell is the fundamental block of living organisms. Cells are of two types including Somatic cells and germ cells.
Somatic cells refer to all the cells of the body except for the germ cells or as a whole-cell in the case of the unicellular organism.The somatic cells are obliged to build the whole body parts.Somatic cells divide only by the process of mitosis.The germ cells are the generative cells liable for reproducing the offspring.Germ cells generate cells like sperm in males and eggs in females.Germ cells are the unique cells that undergo both mitosis and meiosis to produce gametes.The germ cells produce haploid (N) cells.Therefore, the two somatic cells of an individual will be identical as they carry the same genetic information.
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Jenna is helping her family decide which water filtration technology they should install in their house. Which of these provides the correct reasoning for method Jenna and her family should choose?
A.reverse osmosis because it requires no filters, and removes all contaminants such as bacteria and chemicals
B.ultraviolet radiation because it requires no filters, and removes all contaminants such as bacteria and chemicals
C.ultraviolet radiation because it requires no energy, and removes all contaminants such as bacteria and chemicals
D.reverse osmosis because it requires low maintenance, and removes all contaminants such as bacteria and chemicals
Answer:
B
Explanation:
The water filtration technology they should install in their house is reverse osmosis because it requires low maintenance, and removes all contaminants such as bacteria and chemicals.
Reverse Osmosis Systems have a totally excessive effectiveness in doing away with bacteria (for example, Campylobacter, Salmonella, Shigella, E. coli); Reverse Osmosis Systems have a totally excessive effectiveness in doing away with viruses (for example, Enteric, Hepatitis A, Norovirus, Rotavirus).
How does reverse osmosis work ?Reverse osmosis works through shifting water via a semipermeable membrane to filter and flush away any contaminants. Reverse osmosis structures are quality appropriate for home use and offer a surprisingly green manner to purify your ingesting water at home.
Thus it is well explained.
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Matthias Schleiden and Theodor Schwann looked at plant and animal cells. Schwann wrote the first part of what is known as the cell theory. Which statement did he write? A. All organisms are composed of one or more cells. All cells come from existing cells. B. All organisms are composed of one or more cells. The cell is the basic unit of life in all living things. C. All cells come from existing cells. The cell is the basic unit of life in all living things. D. All cells are microscopic in size. All cells come from existing cells.
Answer:
B. all organisms are composed of one or more cells. the cell is the basic unit of life in all living things.
Explanation:
This is the first part of the cell theory.^-^
how do the geocentric and heliocentric models of the solar system differs?
Answer:
The main difference is that the geocentric has the Earth at the center, and the heliocentric has the sun at the center.
Answer:
The geocentric has the Earth at the center while the heliocentric has the sun at the center.
Explanation:
:)
The deforestation of rainforests in South America is an example of what specific type of
threat to biodiversity?
Answer:
habit destruction
Explanation:
deforestation gets rid of homes to the animals.
Which statements best describe shared characteristics? Select two options.
a. Shared characteristics always exist in the common ancestor and in the modern organism
b. Shared characteristics never exist in the common ancestor or in the modern organism.
c. The more characteristics organisms share, the more closely related they are.
d. The fewer characteristics organisms share, the more closely related they are.
e. Shared characteristics can exist among organisms that belong to different species.
f. Shared characteristics only exist among organisms that belong to the same species.
How do animals add carbon dioxide to the atmosphere?
A. breathing
B. evaporation
C. cellular respiration
D. transpiration
equation of cellular respiration
C6H12O6+6O2--->6CO2+6H20
from this equation we can see that co2 is a product so the answer is C
Does the stratosphere have a high or low temperature also what is the temperature
Answer:
Explanation:
The stratosphere is the second-lowest layer of Earth’s atmosphere, starting at 10 kilometers above the surface. Unlike the troposphere, the temperature in the stratosphere increases with altitude. At the top, the temperature is around 32°F – almost 100 degrees higher than the bottom.
A. How do the oxygen (O2) and carbon dioxide (CO2) levels change over time?
Answer: How does CO2 level affect oxygen production? increasing CO2 production increases oxygen production. ... Greater flow of oxygen corresponds to a higher rate of photosynthesis.
Explanation:
Oxygen ( O₂ ) and carbon dioxide ( CO₂ ) levels change over time ;
Due to man-made and natural processes
Natural processes such as Photosynthesis and the storage of carbon in the biosphere and hydrosphere. cause a varying change in the levels of CO₂ present in the atmosphere because during photosynthesis CO₂ is used by green plants while the amount of stored carbon in the hydrosphere affects the level of available carbon in the atmosphere in general.
Man-made processes which includes the burning of fossil fuels and the release of CFC's into the atmosphere through gas flaring also the indiscriminate burning of bushes contribute immensely to the levels of carbon found in the atmosphere.
Hence we can conclude that Oxygen ( O₂ ) and carbon dioxide ( CO₂ ) levels change over time ; Due to man made and natural processes
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What is the name of length of time needed for us to pay back our oxygen debt?
O2 oxygen debt time may vary from individual to individual, but the average is 2 minutes for normal individuals.
What is O2 Oxygen Debt?Oxygen debt is a physiological phenomenon that occurs when someone consumes oxygen at a faster rate than it can be replaced, leading to an oxygen deficit that causes increased respiration as the body tries to replace used oxygen.
With this information, we can conclude that the time of o2 oxygen debt can vary from individual to individual, but the average is 2 minutes for normal individuals.
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2. How does magma become an igneous rock?
Answer:
By cooling down.
Explanation:
Magma is just molten rock inside a (lava outside) So when it cools down and is no longer molten, it turns back to rock! hope this helps
Matthias Schleiden and Theodor Schwann looked at plant and animal cells. Schwann wrote the first part of what is known as the cell theory. Which statement did he write?
A.
All organisms are composed of one or more cells. All cells come from existing cells.
B.
All organisms are composed of one or more cells. The cell is the basic unit of life in all living things.
C.
All cells come from existing cells. The cell is the basic unit of life in all living things.
D.
All cells are microscopic in size. All cells come from existing cells.
Prokaryotes reproduce through a process called(1 point)
mitosis.
meiosis.
replication.
binary fission.
Answer:
binary fission
Explanation:
binary fission since prokaryotes have to reproduce rapidly.
Scientists believe all of the following will occur due to the warming of the
climate except for what?
More Rain
Hurricanes
Volcanoes
Drought
Answer:
volcanoes
Explanation:
volcanoes don't change due to temperature or sea rise. hope this works!
What is the starting point for an argument?
a
Counterclaim
b
Bridge
c
Claim
d
Support
Answer:
i think its c
Explanation:
Answer:
c
Explanation:
claim
What is the function of RNA polymerase in the process of transcription?
A. It turns RNA into a polymer (long chain of repeating molecules)
B. It turns DNA into a polymer (long chain of repeating monomers)
C. It unzips RNA
D. it unzips DNA
how much force would is required to stop a 1200kg car in 2 seconds if the car is traveling at 22 m/s
The force required to stop the car is 13200 N.
We have car of mass 1200kg.
We have to determine how much force is required to stop this car in 2 seconds.
What is Force ?
Force is defined as the product of mass and acceleration. Mathematically-
F = ma
According to the question -
Using first equation of motion -
v = u + at
0 = 22 + a x 2
-22 = 2a
a = -11 m/s².
The force required to stop the car = M x a = 1200 x |a| = 1200 x 11 =
13200 N
Hence, the force required to stop the car is 13200 N.
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how are the genetics of people and the corona different?
Answer:
biology
Explanation:
If a certain organism is a secondary consumer, what best explains its position in the food web?
X, because organism X feeds on producers
Y, because organism Y feeds on producers
X, because organism X feeds on a carnivore
Y, because organism Y feeds on a herbivore
Answer:
Y because organism y feed on herbivore
Explanation: using process of elimination this one makes sense and i got it right on the test.
What causes the atrioventricular valves to close during a heartbeat? a Pressure in the atria is higher than in the ventricles. b Pressure in the atria is lower than in the ventricles. c Pressure in the arteries is higher than in the ventricles. d Pressure in the arteries is lower than in the ventricles.
Answer:
The correct answer is - b Pressure in the atria is lower than in the ventricles.
Explanation:
The atrioventricular valves close when the pressure in the ventricles is more than the pressure in the atria. Which leads to the contraction of the papillary muscles to shut the leaflets of the valves,
When the ventricles relax, atrial pressure exceeds ventricular pressure, the AV valves are pushed open and blood flows into the ventricles. However, when the ventricles contract, ventricular pressure exceeds atrial pressure causing the AV valves to snap shut.
2). WHAT TWO THINGS MUST HAPPEN TO PEOPLE IN DEVELOPING COUNTRIES IN ORDER TO BECOME LIKE INDUSTRIALIZED COUNTRIES AND BE ABLE TO REDUCE POPULATION GROWTH?
Answer:
Advertise or tell everyone near about the country.
Explanation:
Myosin is plentiful in muscle cells, but is not found at all in lens cells. Lens cells contain large amounts of crystallins, which are not found in muscle cells. Why do some proteins appear in one type of cell but not in another?
PLEASE HELP IM TIMED.
Both an electric motor and a generator spend an electromagnet inside of a permanent magnet. However, the input and output energies are different. Explain the differences.
Answer:
An electric motor converts electricity into mechanical energy, providing a power source for machinery. A generator does the opposite of this, converting mechanical energy into electricity.
Explanation: