Answer:
a is your answer
Explanation:
Atoms of A decay to atoms of B with a half-life of 200,000 years. If there are 20,000 atoms of A to begin with, how long will it take for there to be 2,500 atoms of A?
Answer:
The correct answer is: 600,000 years
Explanation:
Half-life is the time which is essential or required to decrease a specific substance to half of its initial amount of the substance. So, if a substance has a half-life of 200,000 years then it means it takes 200,000 years to decrease or change into a new substance and remain half of its initial quantity.
half-life amount
0 20000
1 10000
2 5000
3 2500
total half-life = 3 to 2500 atoms of A
so, the time will be = 3 * 200,000 years
= 6000000
name one human hormone that is produced by genetically modified bacteria
Answer:
Insulin
Explanation:
I knew the answer, but I'm not really good at explaining these so I got a little help from google. -------- Bacterial cells can be genetically modified so that they have the gene for producing human insulin. As these modified bacteria grow, they produce human insulin.
Robert Hooke discovered cells in the 18th century.
true or false
Answer:
False it is in the 17th century (1665)
Explanation:
He named the little blocks after cells (little rooms)
Calculate the force needed to cause a 6 kg bowling ball to accelerate 20 m/s2.
Answer:
120N
Explanation:
F=ma
120N=6kg(20m/s^2)
Which is biotic?
soil
leaf
water
snow
Answer:
leaf
Explanation:
it is a living thing
Biotic is leaf.
What is Biotic?
Biotic describe the living or once living components of an ecosystem
like animals and plants.
The biotic and abiotic components interact with each other in an ecosystem
What are abiotic?
abiotic describe the non living components of an ecosystem like soil, water, snow.
Hence, B) option is correct.
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outline the process of biogas production
Answer:
The production of biogas is the easiest way of extracting the energy from residues, under various factors.
Explanation:
It is produced from the organic residue – carbon, which degrades with the help of bacterias.
It can be produced using the anaerobic digesters and in this process biomass waste transforms into methane and this way produces the energy that is renewable and used for energy and heating.
What affect do glass panels have on temperature google doc
Answer:
wdym
Explanation:
Which phase of the Moon rises in the east as the Sun rises in the east
Answer:
Rise, Transit and Set time
Explanation:
The first organisms to appear on Earth did not need?
a. oxygen.
cells.
b. nitrogen
d chemicals
C
Please select the best answer from the choices provided
Ο Α
B
C
Answer:
ANS IS DDDDDDDDDDDDDDDDDDDDDDDDDDDDDdd
Explanation:
The creation of different breeds of dog by humans is an example of...
A) stabilizing selection
B) disruptive selection
C) artificial selection
D) sexual selection
Answer:
I believe it is artificial selection
Explanation:
i learned about this a little while ago lol
Which of the following statements correctly describes a difference between plant cells and animal cells?
2 points
A. Plant cells have an envelope surrounding the nucleus. Animal cells do not.
B. Animal cells contain mitochondria. Plant cells do not.
C. Animal cells contain chloroplasts. Plant cells do not.
D. Plant cells are surrounded by a cell wall. Animal cells are not.
Answer:
D
Explanation:
plant cells are the only kind of cell to have cell walls
The statement 'plant cells are surrounded by a cell wall, while animal cells are not' correctly describes the difference between plant cells and animal cells (Option D).
Both plants and animals are eukaryotic organisms, which means that their cells have nuclei and contain membrane-bound organelles.Plant cells contain an organelle known as chloroplast, which is used by these organisms during photosynthesis. Moreover, the plasma membrane of plant cells is surrounded by a cell wall that provides structural support to their cells.In conclusion, the statement 'plant cells are surrounded by a cell wall, while animal cells are not' correctly describes the difference between plant cells and animal cells (Option D).
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Melanin is a that is produced in organelles called in specialized cells called ________.
Answer:
Melanocytes
Explanation:
Melanocytes produce the protective skin-darkening pigment melanin. Melanocyte, specialized skin cell that produces the protective skin-darkening pigment melanin. Birds and mammals possess these pigment cells, which are found mainly in the epidermis, though they occur elsewhere like in the matrix of the hair.
Melanin is a that is produced in organelles called in specialized cells called
MelanosomesMelanin is a dark pigment that is found in the skin of a human. This factor affects the color of the eyes, hair, etc in people as the more melanin available in the body, the darker these parts of the body are.
A specialized cell is responsible for the production of melanin called melanosomes and this is in varying quantities in different people.
Melanosomes are those cell nucleus that are responsible for the production, storage and transfer of melanin to the parts of the body.
Therefore, the correct answer is melanosomes
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SOMEONE HELP ME PLZ!!!!!!!!!!!!
Which of the following statements about meiosis is true?
Meiosis creates unique cells.
Meiosis creates identical cells.
Meiosis creates cells such as skin and muscle cells
Meiosis creates glucose in plant cells
Answer:3
Explanation:
Which of the following is an example of evolution that can be studied firsthand by
scientists while it happens (meaning that scientists have opportunities to perform
experiments and to measure the outcome)?
A) The gradual decent of whales from tetrapod (four-legged) land mammal
ancestors
B) A dog shedding its thick winter fur so that it can stay cooler in the summer
C) The acclimation of a person's body to the low oxygen atmosphere at high
altitudes
D) The development of antibiotic resistance in bacteria
Answer:
c.
Explanation:
The acclimation of a persons body to the low oxygen atmosphere at high altitudes
Put the boxes in the correct order
Answer:
This was the question you asked earlier and you deleted it after i wrote a whole essay so here. I hope its still of some use.
Explanation:
I believe the most useful ap to use for people of age is Faceb00k. Faceb00k is a safe and friendly app where people can share what there doing or pictures.
So many parents and grandparents use this today to share photos of younger family members, and others can like and comment on there posts. Although their are some who receive hate, most of the people are quite rather friendly.
People like to share there appreciation for l0ved ones by letting the whole world see them through Faceb00k. Most elderly people do this so there younger ones can look back at all the memories they had together. Yes, its true they can just not post it and still look back at memories, but they post it because if it gets deleted and you posted the photos online there will always be a way to recover them.
In conclusion, this is why I believe Faceb00k is the best ap for the more elderly people. Firstly, they can show there memories to the world by showing appreciation. And lastly, whenever you post something online it can always be recovered, so those valuable moments will not be forever lost.
please help me with this question:)
Answer:
It is a cell wall
Explanation:
Which categories of amino acid would you expect to find on the surface of a soluble protein, and which would you expect to find in the interior? What distribution of amino acids would you expect to find in a protein embedded in a lipid bilayer?
Answer:
Polar and charged amino acid residues (the remainder after peptide bond formation) are more likely to be found on the surface of soluble proteins where they can interact with water, and nonpolar (e.g., amino acid side chains) are more likely to be found in the interior where they are sequestered from water.
Explanation:
The amino acids with POLAR and CHARGED side chains are expected to be observed on the membrane surface, whereas amino acids with NON-POLAR and HYDROPHOBIC side chains are expected to be found inside the lipid bilayer.
The lipidic bilayer is mainly composed of phospholipids.Phospholipids have hydrophilic, polar phosphate heads facing out on each surface to interact with water and hydrophobic fatty acid tails facing each other inside the lipid bilayer.The polar and charged side chains of amino acids are expected to be observed on the surface of membrane proteins because they can interact with water (H2O) molecules.On the other hand, nonpolar side chains of specific amino acids are expected to be observed inside the lipid bilayer to interact with the hydrophobic fatty acid tails of phospholipids.The polar amino acids include glutamine, glutamic acid, arginine, asparagine, aspartic acid, histidine, lysine, serine, and threonine.Moreover, amino acids with hydrophobic side chains include leucine, isoleucine, glycine, alanine, valine and proline.In conclusion, amino acid residues with POLAR and CHARGED side chains are expected to be observed on the membrane surface, whereas amino acids with NON-POLAR and HYDROPHOBIC chains are expected to be found inside the lipid bilayer.
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This model shows how cold winter air is warmed in the Great Lakes Basin, which creates ideal temperatures for year-round
fruit farming, which statement best describes this interaction?
A)
B)
The biosphere and hydrosphere interact, which affects the
atmosphere
The geosphere and atmosphere interact, which affects the
hydrosphere.
The hydrosphere and atmosphere interact, which affects the
biosphere.
The geosphere and hydrosphere interact, which affects the
atmosphere
C)
D)
Answer: C aka “the hydrosphere and the atmosphere interacts which affects the biosphere“
Explanation:
Hydro means water right... your welcome babes!!!
Spheres are the division of the air, land, water and living organism and their interactions. Interaction of hydrosphere with atmosphere affects the biosphere.
What are the types of the spheres and their relation?The spheres of the air and the constituents of the gases in the planet's surface is called the atmosphere and the water environment and its constituents are called hydrosphere. The sphere where the living organisms resides is called the biosphere.
The air and the air movement of the atmosphere along with the lake conditions or the hydrosphere affects the lives of the organism of the biosphere.
The fruits and the other vegetation is part of the biosphere and gets affected by the air from the atmosphere and the water cycle of the lake from the hydrosphere.
Therefore, option C. interaction of the hydrosphere and atmosphere affects the biosphere.
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Write the equation of a line that is parallel to y = 0.62 + 3 and that passes through the point (-3,-5).
Answer is y=0.6x-3.2
Answer:
y = 0.6.x - 3.2
Explanation:
The slope-intercept form:
y = mx + b
m - slope
b - y-intercept
We have
y + 0.6x + 3
Parallel lines have the same slope. Therefore we have the equation:
y + 0.6x + b
The line passes through the point (-3, -5). Put the coordinates of the point to the equation and solve it for b:
-5 = 0.6(-3) + b
-5 = - 1.8 + b
-3.2 = b
add 1.8 to both sides
Finally we have:
y = 0.6.x - 3.2
{Not mine :(}
Consider the food chain grasshopper mouse snakes hawks. If snakes go extinct what will happen to the food chain
Answer:
This can actually cause a major problem if the number of grasshoppers were to increase out of control. They eat plants and the number of plants,which are the basis of the food chain, could severely decrease which would impact all of the levels operating above this trophic level.
Answer:
Lack of mice
Explanation:
If the grasshopper where to go extinct the mice population would decrease. Which would lead to it being harder for snakes to find food or they would begin to rely on a different food source. But the hawks would be able to find less snakes but would overall be fine.
Veterinarians who specialize in birds are often referred to as herp veterinarians.
(True)
(False)
Answer:
false
Explanation:
quizlet said so
Answer:
FALSE
Explanation:
please help me with this question:)
That is the nucleus!
Hope this helpeddd
Answer:nucleus :)
Explanation:
ALOT OF POINTS MARKING POEPLE AS BRAINLIST
Look at the graph. Explain how the two population are related to each other
which enzyme attaches the ozaki fragments?
Answer:
DNA ligase,joins the okazaki fragments together into a single DNA molecule
Answer:
DNA ligase attaches the ozaki fragments.
Explanation:
In my thought it's the answer.
How is the energy produced by respiration stored? (Googled answers will be reported) (actual answers please)
Answer: Energy is produced by respiration because its stored within the cells in the form of ATP (Adenosine Triphosphate) .
Explanation:
I'm pretty sure that's it.
- Sorry if I'm wrong :<
Which choice below is an example of humans modifying the physical environment?
Farmers clearing land to plant
Transportation improvements
Commercial development
Industrial development
which process in photosynthesis uses energy from the sun
Answer:
splitting water into hydrogen and oxygen
Explanation:
because
The light-dependent reaction
The light-dependent reaction, as its name implies, occurs inside the thylakoid membrane and necessitates a constant supply of sunshine. The light waves' energy is captured by the chlorophyll and transformed into chemical energy in the form of the molecules ATP and NADPH.
What is Photosynthesis ?
Plants and other living things employ a process called photosynthesis to transform light energy into chemical energy that can then be released through cellular respiration to power the organism's activities. Despite the fact that various species undertake photosynthesis in different ways, the process always starts when proteins called reaction centres that contain green chlorophyll absorb energy from light. Unlike bacteria, which have these proteins incorporated in the plasma membrane, plants store these proteins in organelles called chloroplasts, which are most prevalent in leaf cells.
When the cell needs energy, ATP can be taken out and used to fuel processes or stored for use in later ones. Animals use ATP to retain the energy released during meal digestion. Similar to this, plants use ATP molecules to store the energy they obtain from light during photosynthesis.
In addition to converting ADP to ATP, photosynthetic processes are used by plants to absorb, process, and store solar energy. Animals convert ADP to ATP, which can subsequently be utilised to drive essential development and cell maintenance, using the energy supplied from the breakdown of glucose and other molecules.
Plants absorb water (H2O) and carbon dioxide (CO2) from the soil and atmosphere during photosynthesis. Water is oxidised, which means it loses electrons, while carbon dioxide is reduced, which means it receives electrons, inside the plant cell. Water is converted into oxygen and carbon dioxide into glucose as a result.
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If you multiply six positive numbers, the product sign will be
Answer:
Positive
Explanation:
Because there is no negative numbers in your equation and a positive times a positive equals a positive.
If a mutation occurred resulting in a single nucleotide addition to the below DNA sequence, what do you suspect would happen?