Answer:
Explanation:
Eating healthy foods, getting enough sleep, and being active every day can help keep your respiratory system, cardiovascular system and immune system strong. Getting enough exercise makes your lungs stronger and better at giving your body the oxygen it needs.
Which form of nitrogen is most abundant on earth? N2 (Atmospheric Nitrogen) NH3 (Ammonia) NO2- (Nitrite) NO3- (Nitrate)
Answer:
N2 (Atmospheric Nitrogen)
Explanation:
Nitrogen is a chemical element positioned as 7 on the periodic table. Nitrogen is found as a gas in the atmosphere (N2) and constitutes the most part of the air making it the most abundant gas on Earth.
Atmospheric nitrogen (N2) is the most abundant of its form found on Earth. It can be converted to its compound form e.g. nitrates (a plant usable form) by lightning and some bacteria in the soil.
Independent assortment is the exchange of genetic material between
homologous chromosomes.
True Or False
Answer:
False
Explanation:
According to Gregor Mendel in his law of INDEPENDENT ASSORTMENT, independent assortment of genes is a phenomenon whereby the segregation of the alleles of one gene into gametes occurs independently of the alleles of another gene i.e. their segregation does not affect/influence one another. Independent assortment occurs in the Metaphase 1 of meiosis 1, where homologous chromosomes randomly align at the equator of the cell. This random orientation of homologous chromosomes determines which chromosome will separate into which gamete.
According to the question, the exchange of genetic material between homologous chromosomes is termed CROSSING-OVER. Crossing over or Recombination occurs during the Prophase I state of meiosis I, where non-sister chromatids of homologous chromosomes exchange a portion of their gene.
Hence, the answer is false because the exchange of genetic material between homologous chromosomes is crossing-over.
In snapdragons, flower color is determined by a gene with two alleles. Red flower color (R) shows incomplete dominance over the gene for white flower color (R'). A scientist is observing the genes and genotype of a snapdragon population. Which observation provides evidence that the population is evolving?
A) The alleles R and R' have unequal frequency in the population.
B) The population is decreasing, and the allele frequencies remain the same.
C) The allele R' is becoming more common in the population.
D) The population is increasing, and the allele frequencies remain the same.
Answer:
C) The allele R' is becoming more common in the population.
The observation from this experiment provides the evidence that the population is evolving and the allele R' is becoming more common in the population. Thus, the correct option is C.
What is Incomplete dominance?Incomplete dominance is the form of gene interaction which results from a cross in which each of the parental contribution is genetically unique and the allele gives rise to progeny whose phenotype is intermediate of the two parental genotypes and phenotypes. Incomplete dominance is also referred to as semi-dominance or partial dominance. It is an exception of the Mendel's law of dominance.
From the observation made in the experiment, it can be said that the allele R' which is responsible for white colored flowers in the plant are becoming more common in the population.
Therefore, the correct option is C.
Learn more about Incomplete dominance here:
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How does soil quality affect the characteristics of ecosystems?
A large population of green aphids lives in an field and feeds on wild rose plants. What will most likely resut if exposure to insecticides causes mutations in the aphids over
several generations?
Answer:gene frequencies in the aphids will change
Explanation:
All the following will give people an indication of your character EXCEPT
Ohow you are dressed.
your body type.
the language you use.
whether you are on time or not.
Brainly if correct 50 points
A person eats a candy bar, and the sugar level in her blood gets very high. Her body releases insulin into her blood. The insulin causes extra sugar to be stored in the muscles, and the sugar level in the blood returns to normal.
When a plant does not get enough water its leaves wilt and stomata are
closed to prevent further loss of water through transpiration. This wilting of leaves and closing of stomata is caused by a growth inhibiting hormone. What is the name of this growth inhibiting hormone that causes wilting of
leaves?
• auxin
• gibberelins
• abscisic acid
Which trend in hominid evolution can be supported by fossil evidence?
Walking upright
Use of tools
Increased intelligence
Decorating cave walls
Question 12
Identify and select the the correct vocabulary that correctly describes DNA. Choose ONLY the correct answers, pick 3.
Answer:
I personally answered:
nucleotides with adenine, guanine, cytosine, or thymine are the monomers
thymine base pairs with adenine
guanine base pairs with cytosine
Explanation:
3. How much smaller are viruses than bacteria?
Answer: Viruses are about a thousand times smaller than bacteria, and bacteria are much smaller than most human cells. Viruses are so small that most cannot be seen with a light microscope, but must be observed with an electron microscope.
Answer:
100 times
Explanation:
Viruses are infectious particles about 100 times smaller than bacteria and can only be observed by electron microscopy.
Hope this helps :)
Interphase lasts for
of a cell's life
98%
80%
50%
20%
Please help I need help nowww pleaseeeeeee
Answer:
80%
Explanation:
While Congress has the power to create new laws, they can be vetoed by the President. In addition, the Executive Branch must enforce these laws. What two
different constitutional principles are demonstrated by these relationships?
Select one:
A
checks and balances and separation of powers
B.
separation of powers and eminent domain
C
federal supremacy and due process
D.
separation of powers and quartering of troops
Answer:
A, Checks and balances and separation of powers.
Explanation:
Answer:
The correct answer is:
checks and balances and separation of powers
Explanation:
The system of checks and balances refers to instances in which the powers of the branches of government overlap, such as the Executive and the Legislative branch both having some power over the acts passed by Congress. Separation of Powers refers to instances in which separate branches have completely separate responsibilities, as in creating, interpreting, and enforcing the laws. Both of these doctrines are in place to ensure no branch gains too much power.
How many ATP are generated in the electron transport chain?
O 2
04
O 32
0 36
Answer:
32
Explanation:
Why would humans not be able to repair and reproduce without bacteria short summary please helpp
Which claim is supported by significant scientific research?
The diet of leaf-cutter ants is principally
a. leaves
b. fungus
c. saliva-coated leaves
d. fungus-treated leaves
Answer:
it would be B.
Explanation:
Answer:
b. fungus
Explanation:
Which cellular process creates energy?
A. The conversion of ADP to ATP
B. The breaking of the chemical bond between the 2nd and 3rd phosphate
molecules in ATP.
C. The breaking of lipid chains.
D. The transportation of ions across the membrane.
Thank you!!
Answer:
B. The breaking of the chemical bond between the 2nd and 3rd phosphate
molecules in ATP.
Answer:
The conversion of ADP to ATP if I remember correctly.
Which would a microscope be LEAST useful in studying?
A. spider
B. amoeba
C. bacterium
D. paramecium
Answer:
A
Explanation:
spiders can be seen with the naked eye
Answer:
A
Explanation:
A spider is large enough to see and observe without a microscope. Bacteria, amoeba and paramecium are all very tiny, and can’t be seen with just our eyes. To see these things, we would need a microscope. Therefore, a microscope would be the least useful when studying A: a spider.
A(n)
is a cellular structure that performs a
specific function in the cell.
Answer:
organelle
Explanation:
Answer:
organelle
Explanation:
each organelle within a cell has a very specific function in the cells role.
hope this helps please mark brainliest!!!
Which statements describe floods and wildfires? Check all that apply.
(Select all that apply)
A.Both are natural hazards that affect Florida.
B.Both may affect coastal and inland regions.
C.Both are caused by drought conditions.
D.Both are made worse by the presence of muck
E.Both may be caused by thunderstorms.
F.Both may cause property destruction.
Answer:
A, B, E, F,
Explanation:
The statements that describe floods and wildfires are as follows:
Both are natural hazards that affect Florida.Both may affect coastal and inland regions.Both are made worse by the presence of muck.Both may cause property destruction.Thus, the correct options are A, B, D, and F.
What is Wildfire?Wildfire may be defined as an uncontrolled fire that burns in the wildland vegetation, often in rural areas.
Both floods and wildfires are natural hazards that affect both coastal as well as inland regions. Ultimately both cause rapid destruction of property and lives.
Therefore, it is well described above.
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Which of the earths sphere is by far the largest?
Answer this plzz!!!
Mutations are triggered by
Answer:
Mutations can also be caused by exposure to specific chemicals or radiation.
Explanation:
(mark as brainliest please)
Answer:
mutations can be triggered by errors during DNA replication, but also environmental contributions, such as uv light from the sun.
OPEN ENDED QUESTION
Why is the Cuyahoga River fire an
important event in dealing with water
pollution?
It showed people to stop dumping trash into the river.
Kyree is heterozygous. |f(W) ) is for waves, and ) if for no wave (w) r no waves What is Kyree's genotype & phenotype?
Answer:
Kyree b will have waves with a gwnotyoe; We
Explanation:
This question involves a single gene coding the possession or not of waves in humans. Allele W is for possession of waves while allele w is for no waves.
Heterozygous means contains two different alleles of the same gene. In this case, an heterozygous individual will possess allele W and w together i.e. Ww. Since the allele W is dominant over allele w i.e. can mask Its phenotypic expression, an heterozygous offspring (Ww) will phenotypically possess waves.
The three conditions that encourage the presence of marine life in the ocean are proximity to land, water depth and.
Answer:
Exposure to sunlight.
Explanation:
Sunlight is important condition necessary for the presence of Marine life in ocean. This is because sunlight provide energy for ocean current and wind waves. When this energy is converted to heat, it a layer of warm water which is present at the ocean surface which support most Marine life. Sunlight produce light energy which is needed for Marine life like algae to photosynthesized in addition with carbondioxide and water in order to to produce necessary for survival for most Marine life.
Drag each label to the correct location on the image
Arrange the symbols to form a DNA molecule.
5
3
5
3'
Answer:
The right answers are mentioned in the picture.
A base pair (bp) is the pairing of two nucleobases located on two complementary strands of DNA or RNA. This pairing is carried out by hydrogen bridges. There are four types of nucleic bases: A-T-C-G, these letters Adenine, Thymine, Cytosine, and Guanine. A with T and C with G.
It is also necessary to take into account the antiparallel character of the DNA strands. If a strand is in the 5 '3' direction, its complete strand is in the 3 '5' direction.
Explanation:
Compare a lunar eclipse and a solar eclipse. For each type of eclipse, be sure to provide evidence that describes:
The alignment of the sun, moon and earth during the eclipse.
The phase of the moon that is observable during the eclipse.
How the sun’s light is being blocked on the earth and the moon.
Type your answer on a Google doc and submit
Answer:
A lunar eclipse occurs when the Earth gets in the way of the sun and blocks sunlight from hitting the moon. This makes the moon have a reddish-orange tint to it. A full moon is visible during a lunar eclipse.
A solar eclipse happens when the moon gets in between the sun and the Earth, forming a crown like ring around the moon, which is from the sun. The moon itself might not be visible, due to the angle at which it sun is hitting it at.
Directional selection only occurs in response to naturally occurring events.
Please select the best answer from the choices provided
Тrue
False
Answer:
False
Explanation:
Directional selection is a force in nature that causes a population to evolve towards one end of a trait spectrum. This change happens gradually and is hard to notice over a short period of time. This change is consistent and constant.
