Select the correct answer.
Kevin has two test tubes filled with a clear liquid. One of them is water, and the other is vinegar. He adds a little baking powder to each liquid to
identify the test tube that contains vinegar. Select the correct observation and conclusion.
OA The liquid in which baking powder dissolves is vinegar.
OB. The liquid in which baking powder settles down is vinegar.
OC. The liquid in which bubbles are formed is vinegar.
OD. The liquid that does not change color is vinegar.
O E. The test tube that becomes cold contains vinegar.
Answer:
C. The Liquid which bubbles form is vinegar
Explanation:
Bubbles are one of the signs of a chemical reaction when there's bubbles there's gas.
Answer:
OC. The liquid in which bubbles are formed is vinegar.
3. What is the original source of energy for all fossil fuels?
hydrocarbons
photosynthesis
the Sun
cosmic radioactivity
Answer:
the sun
Explanation:
All the energy in oil, gas, and coal originally came from the sun, captured through photosynthesis. In the same way that we burn wood to release energy that trees capture from the sun, we burn fossil fuels to release the energy that ancient plants captured from the sun.
hope this helps
Which molecules are involved in protein synthesis?
ribosomal RNA, transfer RNA, and mutagens
messenger RNA, ribosomal RNA, and transfer RNA
messenger RNA, introns, and ribosomal RNA
transfer RNA, introns, and mutagens
Which of the following is a result of reduced levels of red blood cells and elevated levels of white blood cells in the body?
Efficiency of oxygen transport is reduced due to an infection.
Efficiency of nutrient transport is reduced due to an infection.
Efficiency of oxygen transport is reduced, but not due to an infection.
Efficiency of nutrient transport is reduced, but not due to an infection.
Answer:
the white cell is the air in youre body and the red cell are the blood in youre body
Explanation:
Answer:
Efficiency of oxygen transport is reduced due to an infection.
Explanation: got it right on flvs
What two variables must you know in order to
calculate the average speed of a moving object?
А
direction and time traveled
B
total time and total distance
C
slowest speed and fastest speed
D
fastest speed and total distance
B. total time and total distance
People came from monkeys explain why this is wrong
Its wrong but can u explain it
i...
ask your parents....
plz...
not infront of many peoole on brainly..
What happens in Interphase?
a. The cell grows & replicates DNA
b. The cell splits in two
c. The chromosomes move to the middle
d. The cell starts to cleave
Answer:
A, Cell grows and replicates DNA
Explanation:
you can also just look this one up on googlo
Can i have some help please
Answer:
genotype:-
25% (DD)
50% (Dd)
25% (dd)
phenotypes:-
50%
50%
Which best describes the difference between wave A and wave B? O Wave A has a greater pitch and frequency. O Wave B has a greater pitch and frequency. O Wave A has a greater pitch but lower frequency. O Wave B has a lower pitch but greater frequency.
If Earth was like a hard-boiled egg, which part of Earth would the egg shell represent and why?
A. Crust, as its depth is up to 3,000 kilometers
B. Mantle, as its depth is up to 3,000 kilometers
C. Mantle, as its depth is less than 100 kilometers
D. Crust, as its depth is less than 100 kilometers
what is biotic factors
Answer:
Biotic components, or biotic factors, can be described as any living component that affects another organism or shapes the ecosystem. This includes both animals that consume other organisms within their ecosystem, and the organism that is being consumed.
Hope it will help you.......Animals, birds, plants, fungi, and other other organisms are all biotic factors.
Pic is below
Which cells in your body undergo cellular respiration?
Select one:
a. your brain cells
b. your skin cells
c. your heart cells
d. every cell in your body
Answer: D, every cell in your body
Explanation:
The white blood cells can be compared to the army and soldiers of our country. Explain the reason in about 3-4 lines.
Answer:
Please Mark as Brainliest
Explanation:
The white blood cells provide immunity to our body. They help in fighting against diseases, infections, allergies, and foreign particles. These cells keep our bodies safe and healthy, much like the soldiers of a nation.
Which value represents a population density? A. 3,000 fish in a certain lake B. 1,500 shrimp per cubic meter of sea water C. 1,300 shrimp in a certain ocean D. 500 adult crabs along the entire intertidal zone
Answer: D. 500 adult crabs along the entire intertidal zone
Explanation:
Answer:
D. 500 adult crabs along the entire intertidal zone
Explanation:
Which factor is found in a scientific claim? endorsement by famous scientists data collection from only one facility similar results in multiple tests of the claim identical data across all tests of the claim
Answer:
similar results in multiple tests of the claim
Explanation:
e2020 told me so
Similar results in multiple tests of the claim are a factor found in a scientific claim.
What is a scientific claim?The statements made regarding an issue in the field of science are referred to as a scientific claim. Scientific claims are different from any other form of a claim as they are made after a lot of research and are backed by data.
Science is basically a systemically done study of the world around us. People practising in the field of science are called scientists. They collect data, analyze it and based on this analysis they come to conclusions.
Thus a scientific claim is a statement made after coming to the conclusion after analyzing the data.
Even though, a scientific claim is made after thorough research, not every scientific claim is as reliable. The experimentation and analysis can be subject to various errors which can cause a faulty scientific claim.
Therefore, the factor present in a scientific claim would be similar results in multiple tests of the claim.
Read more about the scientific claims, here
https://brainly.com/question/11088441
#SPJ6
What are the four possible gametes of an organism has the genotype KkMm?
Answer:
KM, Km, kM, km
Explanation:
Gametes, which are only produced during sexual reproduction, are formed as a result of meiosis. According to Gregor Mendel in his law of Segregation, alleles of a gene will separate into gametes in such a way that only one form of a gene (allele) will be present in each gamete.
In this question involving a dihybrid with genotype: KkMm, the allele combinations of the gametes that will be produced after meiosis are KM, Km, kM, km.
AsUsing the word "niche” in your answer, explain why this species may have a
higher probability of becoming endangered than a species that eats ten species of plants.
In interspecies competition, two species use the same limited resource. Competition has a negative effect on both of the species (-/- interaction).
A species' niche is basically its ecological role, which is defined by the set of conditions, resources, and interactions it needs (or can make use of).
The competitive exclusion principle says that two species can't coexist if they occupy exactly the same niche (competing for identical resources).
Two species whose niches overlap may evolve by natural selection to have more distinct niches, resulting in resource partitioning.
What laws or theories were assoiates with gregor mendel findings
How do the flowing layers of the Earth interact?
They interact by the core transferring energy by conduction to the upper mantle
assisting in the softening of the rock layer which leads to convection.
They interact by the core transferring energy by convection to the upper mantle
assisting in the softening of the rock layer which leads to conduction.
They interact by the core transferring energy by precipitation to the upper mantle
assisting in the softening of the rock layer which leads to evaporation.
They interact by the upper mantle transferring energy by conduction to the core
assisting in the softening of the rock layer which leads to radiation.
Answer:
They interact by the upper mantle transferring energy by conduction to the core assisting in the softening of the rock layer which leads to radiation.
Explanation:
Convection currents coming from the core and mantel are believed to the main cause of the interaction. As these currents travel up and down the curst and mantle boundary and this creates the plates to move freely forming a conveyor belt. The core of the earth creates this convective current to rise up due to the heat and pressure. The hot molten rocks in the mantle eventually cool and the cycle of rising and sinking takes place.46. A sample of human DNA is made up of approximately 30% adenine. Based on
this information, and the base pairing rules, approximately how much cytosine
found in human DNA?
A 70%
B 20%
C 30%
D 10%
Help please
Answer:
its A/F
Explanation:
A sample of human DNA is made up of approximately 30% adenine. The quantity of cytosine found in human DNA will be 20%. The correct option is B.
What is DNA base pairing?DNA base pairing is the pairing or joining of DNA bases to each other with hydrogen bonds. There are four types of bases present in DNA. They are adenine, thymine, cytosine, and guanine.
Adenine pairs with thymine with double hydrogen bonds and cytosine joined with guanine with triple bonds of hydrogen. The pairing between these base pairs is alternated in the sequence of DNA.
According to the base pairing rule. There will be 100% of these bases present together. So if there is 30% adenine, there will be 30% thymine. The total becomes 60%. Now remain is 40%. So there will be 20 % cytosine and 20% guanine.
Thus, the correct option is B 20%.
To learn more about DNA base pairing, refer to the link:
https://brainly.com/question/16604771
#SPJ6
Frogs have 13 pairs of chromosomes. Complete this model by writing in the correct number of chromosomes for the sperm, egg, and fertilized egg of a frog. Then write in the type of cell division taking place in the two phases shown in the model.
Answer:
Explanation:+13 chromosome from sperm +13 chromosome from egg equals 26 chromosomes for fertilized egg Cell division for growth is mitosis.
Explanation:
When the genetic material found within an offspring is diverse, what type of reproduction is responsible?
a
Sexual reproduction, because the genetic material comes from both parents
b
Sexual reproduction, because the genetic material comes from one parent
c
Asexual reproduction, because the genetic material comes from both parents
d
Asexual reproduction, because the genetic material comes from one parent
Answer:
a
Explanation:
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
what two things are made up during photosynthesis?
Answer:
Oxygen, Carbon dioxide
Explanation:
Its a fact
Which part of a lake is most likely to have no photosythesis?
Answer:
YOU FOR GOT THE OPTION INEED IT HEHE
please help me o will mark brainly
Answer:
duplication RNA
Explanation:
Can someone help me with this question? Will mark BRAINLIEST (But please dont ask)
1.) How is Albinism a genetic disorder?
Answer:
1. We commonly know that albinism is a type 1 genetic disorder which is inherently derived from a gene mutation on the X chromosome
2. This can and is sometimes inherited by the offspring by a process known as X-linked recessive inheritance.
3. Hence it abnormally mutates the X chromosome which allows it the characteristic of a genetic disorder
Rate positively and give brainlist
How do animals survive in air pollution?
All living things must contain genetic material. Which of the following nonliving things also has this characteristic? A. Fire B. Cell phone C. Virus D. Organic phosphates
Genetic material is the hereditary unit found in the cells of every living organism. Viruses are nonliving things that also have genetic material. Thus, option C is correct.
What are viruses?Viruses are organisms that are living and nonliving as they reproduce when once inside the host cell and have the RNA or the DNA as the genetic material inside their capsids.
The protein shell of the virus includes one of the types of genetic material that infects the host DNA by taking control of the host machine to produce multiple copies.
Therefore, the virus is a non-living with genetic material.
Learn more about viruses here:
https://brainly.com/question/9526388
#SPJ2
Two pink-flowering plants are crossed. The offspring percentages are 25% red, 25% white and 50% pink. What would the parent's genotypes be?
Answer:
The options are
A. both homzygous dominant
B. both homzygous recessive
C. both heterozygous
D. one homzygous dominant, one homzygous recessive
The answer is C. both heterozygous
Since it’s in the ratio of 1:2:1 the genotype will be Rr and Rr.
what is the theory of plate tectonics?
Answer: The theory states that the earth's crust is divided into massive slabs known as tectonic plates.
Explanation:
These plates move on the mantle which is a layer made of magma, which consists of semisolid rocks.The heat from earth's core causes convection currents much like in a beaker full of water.But, here the force developed by the magma is so great that it slowly moves the plates like boats on sea over millions of years.