Answer: The AMOUNT of carbon-dioxide atoms released by respiration are EXACTLY EQUAL to the atoms of these materials contained in the oxygen and carbon converted. In this way respiration has conserved the mass or material and in this way followed the law of conservation of mass.
Explanation:
Definition: "Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products."
Simplified: Cellular respiration is used to take in food, then is used to create ATP. ATP is a chemical the cell uses for energy. This process is called aerobic respiration. The process uses oxygen, and has four stages known as Link reaction, glycolysis, the Krebs cycle, and the electron transport chain.
Aka: re-word the simple version a bit.
Please help, 100 points! Most scientists agree that life began on earth approximately 3.5 billion years ago. What would a scientist need to do in order to test this hypothesis and gather evidence?
A: Recreate the composition of the atmosphere and oceans on Earth as they were 4.5 billion years ago.
B: Travel to a similar planet or moon in its own early formation and recreate the chemical reactions which took place on Earth.
C: Gather the raw materials, such as inorganic compounds, on Earth 4.5 billion years ago and recreate the chemical reactions that could have taken place.
D: This is not a testable hypothesis since there is no way to travel back 4.5 billion years or to run the experiment for the next 4.5 billion years. (This one is obviously wrong)
Around 3.8 billion years ago, near the conclusion of this phase known as the late heavy bombardment, life on Earth first emerged, hence option A is correct.
What is the origin of life?Even before the 3.5 billion years ago when the oldest fossils on Earth were discovered, just at the conclusion of the time of late intense bombardment, there is evidence of biological activity.
The 3.5 billion-year-old "stromatolites," which are hard structures created by bacteria, also provide evidence of their presence. Stromatolites are produced when microbe-made sticky mats catch and organize sediments into layers.
It has been discovered that trophozoites contain organic material from 3.5 billion years ago. 3.5 billion-year-old rocks have been found to contain microbial remnants, some of the planet's earliest evidence of life.
Therefore, 3.8 billion years ago, near the conclusion of this phase known as the late heavy bombardment, life on Earth first emerged, hence option A is correct.
Learn more about the origin of life, here:
https://brainly.com/question/28809520
#SPJ2
The gamete of a red fox has 19 chromosomes in it. How many chromosomes are in the red foxes DIPLOID skin cells?
Answer:
38 chromosomes are in the red foxes DIPLOID skin cells
Explanation:
There are two principal types of cells in the organism:
Diploid cells (2n) Somatic diploid cells (2n) reproduce by the process of mitosis and produce two diploid cells.Germ diploid reproductive cells (2n) also reproduce by mitosis and produce two diploid cells. But can also reproduce by the process of meiosis, suffering a reduction in the number of chromosomes and producing four haploid cells (n). Haploid cells (n)Gametes are the product of germ cell division by meiosis, and they have only one set of chromosomes, n (19 in this example). Their destiny is to merge in the process of fecundation, during which a new diploid cell called the zygote emerges through fertilization. The zygote is a complete diploid cell that suffers successive mitosis and forms a new organism (a new fox in this case).
- So, through meiosis, the diploid germ cell (2n) produces four haploid cells (n) that are the gametes.
- Through fecundation or fertilization, two gametes (n) merge and produce a diploid cell (2n) that is the zygote.
If the red fox gamete has 19 chromosomes (haploid number n, the single set of chromosomes), it must merge with another gamete (coming from the other parent) with 19 chromosomes to form the zygote. The zygote is a diploid cell. The zygote will suffer many mitosis divisions to become a new fox.
To know the number of chromosomes in a skin cell, we need to duplicate the number of chromosomes in the gamete (19).
N = 19 = Haploid number2N = 2 x 19 = 38 = Diploid numberMatch the cave type with its example
Column A.
1.____formed by solution
2.____formed by erosion
3.____formed by pressure/flow
Column B.
A. Limestone caves
B. Lava tubes
C.sea caves
What is carbon emissions responsible for?
Answer:
Carbon dioxide (CO2) makes up the vast majority of greenhouse gas emissions from the sector, but smaller amounts of methane (CH4) and nitrous oxide (N2O) are also emitted. These gases are released during the combustion of fossil fuels, such as coal, oil, and natural gas, to produce electricity.
Explanation:
What can Carbon do?
Carbon emissions affect the planet significantly, as they are the greenhouse gas with the highest levels of emissions in the atmosphere. This, of course, causes global warming and ultimately, climate change. Carbon dioxide is released into the atmosphere when fossil fuels — coal, natural gas, and oil — are burned.
of the ozone depleting gases restricted by the Montreal Protocol, NOAA measurements show that atmospheric concentrations of
nearly all these gases were decreasing in the atmosphere by 2018. The graph depicts data collected in the stratosphere over
Antarctica. Which ozone depleting gas has almost been eliminated from the stratosphere?
Answer: C
Explanation: I took the test
Which of these is a large reservoir of nitrogen that is unusable by most organisms?
soil
atmosphere
ocean
outer space
3.
How does mass extinction affect species that survive?
There are no surviving species if a mass extinction occurs.
They fill new roles in the changed environment.
They will soon become extinct.
They combine gene pools.
Answer:
They fill new roles in changed environment
Explanation:
(Choose the correct word)
In a DNA molecule, the [nitrogen bases/phosphates] of each chain form bonds that hold the halves of the molecule together.
What a water pollution
plz hurry
the contamination of bodies water with things such as plastic, oil spills, and many other things. pollution usually happens due to human activity
a family does on a walk beside a river what would most likely happen to the river if the oceans did not exist
Answer:
The river would get larger because it would snow and hail more often.
Answer:
The river would get larger because it would snow and hail more often.
Explanation:
13. Which statement is true about the process of mitosis? *
A. The process occurs only in plants.
B. The process occurs only in animals.
C. The process occurs in every type of organism.
D. The process occurs only in multicellular organisms.
Answer:
D. The process occurs only in multicellular organisms.
In the process of natural selection, organisms with variations that are ____suited to their environment have___ chance of surviving and living longer and will therefore produce____ offspring with the favorable trait.
PLZ HELP ME FILL IN THESE BLANKS ASAP!!!! IN RETURN YOU GET 12 POINTS
Answer:
1) Best, 2) higher, 3) more
Explanation:
help please I’m currently failing biology and need to get my grade up :((
how do variations lead to adaptations?
Answer:
Favorable variations may allow an organism to be better adapted to its environment and survive to reproduce. Beneficial traits are favored in a population so that they may become better represented. Changes in the genetic makeup of a species may result in a new species; this is biological evolution.
If the code on the template DNA strand is TACGCA the RNA built from that template during transcription would have the sequence type your answer..
Answer:
AUGCGU
Explanation:
According to the base-pairing rule, Thymine (T) always pairs with Adenine (A), and Cytosine (C) always pairs with Guanine (G). In addition, RNA has Uracil (U) in the place of Thymine. Following these two rules, TACGCA is transcribed as follows:
T A C G C A
A U G C G U
Hence, the transcription product of TACGCA is AUGCGU.
the hyphae of bread mould that creep along the substrate?
Answer:
Ibdfjfvfjfb
Bbbndb
Explanation:
Nnx fjd dkd wkskss
The ONLY way a new allele can enter a population is
Answer:
D. Mutations
Explanation:
using the particulate model of matter explain why gases can be compressed easily?
Explanation:
Use the particle model of matter to explain why solids have a fixed shape, but gases fill the shape of the container they are in. ... The particles in a gas have very large spaces between them, so the particles can be 'squashed' closer together, meaning the gas can easily be compressed to take up a smaller volume.
How does the product of cell division with meiosis differ from the product of cell division with
mitosis?
The difference is that mitosis produces two diploid (2n) somatic cells that are genetically identical, but meiosis produces four haploid (n) gametes that are genetically unique from each other.
why is a keystone species' role in the ecosystem compared to the keystone brick's role in the arch?
Question 1 of 10 Match each term with its best description.
1.Parent rock
The original rock before it metamorphoses. 2.Burial metamorphism
Parallel alignment of platy grains. 3.Metamorphic rock ?
A rock changed by heat, pressure, and fluids.
4.Foliation
A process that changes rock because of pressure with equal intensity from all directions
Bees can pollinate all types of flowers.
Answer:
Yes,it's clear that bees play a vital role in food production. They are excellent pollinators! Most food crops—including fruits, vegetables, nuts, and seeds—must go through pollination. That's the process of moving tiny pollen cells between plants to help them make seeds.
Hope it helps
Please mark me as the brainliest
Thank you
Which diagram best illustrates the flow of energy in an ecosystem?
Answer:
The correct answer is - option B.
Explanation:
The diagram or pyramid for the energy flow of an ecosystem represents the flow of energy from one end to the other end according to the food chain. It starts with the ultimate energy source the sun which is used by the producers to produce energy and this is the trophic level that carries the highest energy.
In the food chain, when primary consumers eat the producers they get 10% of the total energy producers carries due to loss of energy and 10% energy of primary consumer have transferred to secondary consumer and so on.
why do some scientists think the "origins" question cannot be answered scientifically?
I personally think because of the intelligent design vs. evolution theories. what do you think?
Answer:
agreed
Explanation:
for certain things like how humans were created and everything like that I totally agree because you can't really do research if something that over the years is probably either hidden or gone so if there wasn't any evidence of how any of this came to be by now it would be gone. some things you just can't put a logical explanation on
answer this question and I will give you a reward of 10 points so here is the question:
what is the national animal of the USA
what is the national tree of the USA
what is the national bird of the USA
what is the national flower of the USA
(look I made this question so id give it to challenge yourselves so if you are not interested please you don't have to do it)
Answer:
What is the national animal of the USA - American Bison
What is the national tree of the USA - Mighty Oak Tree
What is the national bird of the USA - Bald Eagle
What is the national flower of the USA - Rose
I liked your questions...!!
Seeya soon!! :) ;)
13. Which of the following is a bacterial disease?
(a) Polimyelitis (b) Filariasis (c) Tetanus (d) Malaria
Answer:
TetanusHope it helps
Have a good day
which of the following is not a function of the skeleton
Answer:
The answer is B
Explanation:
HELP PLEASEEEEEEE guys
Answer:
Explanation:
VE RAPIDO ES LA RESPUESTA B
The chart lists some common types of plants. Which best completes the chart? sporophytes seaweeds hornworts gametophytes
Answer:
I don';t see a chart
Explanation:
Answer all 20 and I can give you brainliest
Answer:
1.(D)
2.(D)
3.(C)
4.(B)
5.(B)
6.(C)
7.(B)
8.(D)
9.(A)
10.(africa)
11.(D)
12(B)
13(?)Convergent boundaries
14(C)
15(A0
16(Sturdy Desks and Tables. The safest place to perform the 'duck, cover, and hold' action is under a sturdy desk or table. ...
Bed or Closet. When you are in bed during an earthquake, stay there. ...
A Room with No Windows. Stay away from glass windows during an earthquake. ...
Door Frame. ...
Outside your Home.
So C?
17(C)
18(D)
19(B or A)
20(B)
Extra credit question
Earth is special because it is an ocean planet. Water covers 70 percent of Earth's surface. Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe.There are multiple reasons for earth to be a special planet. Reasons are as follows
1.Earth is the only planet known where intelligent life exist.
2.It lies in the circumstellar habitable zone (CHZ). CHZ is defined in the image given below.
3. Earth has a unique magnetic field which protects the earth from the harmful solar winds. These solar winds played a role in transforming venus into hell.
4. Earth has Van Allen radiation belts which protects it from cosmic rays.
5. Our large neighbour Jupiter protects is from many comets and asteroids that come from the keiper belt and Oort cloud.
6. Earth's atmosphere is favorable to support life on earth. This atmosphere consists of different gases in adequate amount. If the percentage of gases would differ then life on earth may face serious consequences.
7. Tectonic plates of earth differentiates it from most other planets.
8. Earth has a solid crust unlike the gaseous planets.
9. Earth has been gifted with a medium sized star which release solar winds and protect us from the harmful radiation of outer space.
Brainliest?
Explanation: