Answer:
Carbon dioxide , Sunlight , and water.
Explanation:
HELP PLS AND THANK YOU IM GETTING TIMED BRAINLIEST!!!
Awnser: When water freezes, thaws, and breaks up rocks.
HELP PLEASE! Why might a scientist repeat experiment if she did not make a mistake in the first one
A) scientist therapy experiment to make the most money
B)it helps ensure the results are consistent and repeatable
C) repeating ensures the expect the results match the hypothesis
D) helps fine portions I can be skipped with the same results
Answer:
i believe its B but i might be mistaken.
Explanation:
Which microscope is often used to view metal surfaces?
scanning electron microscope
scanning tunneling microscope
transmission electron microscope
compound light microscope
Answer:
scanning tunneling microscope
Explanation:
Microscopes used to view metal surfaces.
In vesicular transport, __________ transport materials into and out of the cell using _______.
Endocytosis and exocytosis transport materials into and out of the cell using vesicles.
Endocytosis is called the process by which cells incorporate into them molecules, large or small, which are covered by the formation of a vesicle that detaches into the cell, forming phagocytic vesicles.In exocytosis, the proteins or molecules produced in the endoplasmic reticulum are wrapped in a vesicle towards the Golgi apparatus, where they are released to be used by other cells or by the body in different processes.Therefore, we can conclude that exocytosis and endocytosis are the biological processes responsible for the transport of particles and substances into and out of the cell.
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Answer:
Vesicles, Energy
Explanation:
what is the income source obtained from silk worm?
Answer:
silk
Explanation:
How does the ozone layer affect life on Earth?
a.
causes respiratory illness
b.
increases photosynthesis in plants
c.
causes damage to living tissue
d.
filters out harmful ultraviolet radiation
(30 points!)
Answer:
(D) filters out harmful ultraviolet radiation
Explanation:
edg 2020
3. What variables of your test subjects were necessary to input into the calculator?
Which variables seem to have the LEAST effect on a person's vital capacity?
Answer:
????????????????????????
True or false Angiosperms are flowering plants will mark brainlest
Answer:
True, angiosperms are plants that have flowers and produce seeds within a fruiting body or carpel. Example: The humble tomato plant starts off with bright yellow or orange flowers that (after pollination) will swell into a plump, red fruit, chock-full of seeds waiting to be planted.
why leaves are falling when they are matured?
Answer:
bcs in plant there's two types of tissue one is meristematic tissue and another is permanent tissue which are basically dead tissues so when meristematic tissue get matured they are converted into permanent one n leaves becomes dead
what are products of the krebs cycle
Answer:
GTP.
3 NADH.
FADH2, which is converted to UQH2 in the presence of coenzyme Q (ubiquinone)
2 CO2 (carbon dioxide)
Explain how an imbalanced ecosystem be beneficial
Answer:
Ecological balance is a term used to describe the equilibrium between living organisms such as human being, plants, and animals as well as their environment. ... Therefore, this balance is very important because it ensures survival, existence and stability of the environment
Explanation:
If one species is lost the entire ecosystem can stop working. ... If something happens in an ecosystem, it can shift from a state of balance to a state of imbalance. Ecological imbalance is when a natural or human-caused disturbance disrupts the natural balance of an ecosystem.
which type of solution is ideal for carrying out cell functions in the body
Answer:
Blood Cells
Explanation:
The isotonic solution allow the cells to move water and nutrients in and out of the cells. This is necessary for blood cells to perform their function of delivering oxygen and other nutrients to other parts of the body.
Answer: Blood cells
Explanation: The isotonic solution allow the cells to move water and nutrients in and out of the cells. This is necessary for blood cells to perform their function of delivering oxygen and other nutrients to other parts of the body.
Which structures shown in the Figure make up the ADP molecule?
А
B
с
D
A, B and C
C and D
A, B, C, and D
A and B
someone help pleaseee
Answer:
option b i think so i think its correct
Does mitosis or meiosis occur more frequently in your body? Explain your answer
Answer:
Mitosis
Explanation:
Meiosis is the splitting of sex cells which happens during reproduction. Mitosis is the splitting of body cells in order to make more body cells. Mitosis is how your body grows, therefore it occurs more frequently because the body is not constantly reproducing.
In the human body, mitosis occurs more frequently than meiosis. Mitosis is a type of cell division that happens in somatic cells, which are non-reproductive cells.
It is responsible for growth, repair, and maintenance of tissues in the body. On the other hand, meiosis occurs only in reproductive cells, such as sperm and egg cells, and is involved in the formation of gametes for sexual reproduction.
Here is a step-by-step explanation:
1. Mitosis: Mitosis is a process where a single cell divides into two identical daughter cells. It consists of several stages: interphase, prophase, metaphase, anaphase, and telophase. During interphase, the cell grows, replicates its DNA, and prepares for division.
Then, in prophase, the DNA condenses into chromosomes, and the nuclear membrane breaks down. In metaphase, the chromosomes align in the middle of the cell. Next, in anaphase, the chromosomes separate and move to opposite ends of the cell. Finally, in telophase, two nuclei form, and the cell divides into two daughter cells.
2. Meiosis: Meiosis is a specialized type of cell division that produces gametes with half the number of chromosomes as the parent cell. It involves two rounds of division, resulting in the formation of four haploid cells. Meiosis consists of two main stages: meiosis I and meiosis II.
In meiosis I, the homologous chromosomes pair up, exchange genetic material in a process called crossing over, and then separate, reducing the chromosome number by half. Meiosis II is similar to mitosis, as the sister chromatids separate and move to opposite ends of the cell. The end result is the formation of four genetically unique haploid cells.
Although both mitosis and meiosis are essential for different purposes, mitosis occurs more frequently in the body because it is involved in the growth, repair, and maintenance of tissues.
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There are four mechanisms that can cause changes in the frequencies of genes in populations: mutation, migration, genetic drift, and natural selection. All four are mechanisms of evolutionary change. What is genetic drift? A) In a population, it is the changes in allelic frequencies of a gene that are due to chance. B) A random error/change in the DNA sequence. These may be inherited or occur in cells during the lifetime of the organism. C) Also known as gene flow. It is any movement of individuals and/or the genetic material they carry, from one population to another. D) There is variation in any population; differential reproduction occurs and over time a more
Answer:
There is variation in any population; differential reproduction occurs and over time a more
Explanation:
WILL VOTE BRAINLIEST FOR THE BEST ANSWER
What do you know about deserts, grasslands, or tundra biomes?
Answer:
this is what i do when i bored :P
Explanation:
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to the processes of denudation. Grasslands are areas where the vegetation is dominated by grasses. However, sedge and rush can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. In physical geography, tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons. The term tundra comes through Russian тундра from the Kildin Sámi word тӯндар meaning "uplands", "treeless mountain tract".
What do the three nucleotide bases on an mRNA molecule (called a codon) provide a code for?
six amino acids
two amino acids
three amino acids
one amino acid
Answer:
c. three amino acids
Explanation:
i know this from my exam in fifth grade. your welcome ;)
An mRNA is made up of the 4 nitrogenous bases A,U,C and G where the thymine is replaced by U for uracil. An mRNA molecule is made up by a codon of three amino acids.
What is amino acid ?An amino acid is made up by the acidic as well as basic group where the acidic group is carboxylic acid and the basic group is amine group.
A codon is made up by the three amino acids where the three of the amino acids together called as codon makes up a nucleotide together and the molecule it codes for makes a long chain of proteins together making up the structure of the desired machinery as per signals and the mechanisms that are assigned to it.
A codon makes up the together the amino acid and then the chain and together it makes up the protein where the long polypeptide makes up the structure that is tertiary in nature.
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A cell membrane is a rigid structure that can prevent a cell from bursting due to increased internal water pressure.
True
False
Answer:
False
Explanation:
A cell membrane is not rigid a cell wall is rigid.
After a substrate binds to an enzyme,
Answer: The induced fit model states an substrate binds to an active site and both change shape slightly, creating an ideal fit for catalysis. When an enzyme binds its substrate it forms an enzyme-substrate complex. ... The enzyme will always return to its original state at the completion of the reaction.
HElp I Know it’s Late At nigHt but this is due soon
Remember I NEDD TWO NOT ONE TWO AnSWErS
Answer:
pretty sure it's a and b
**Answer all 3 for brainliest**
Can you explain the atomic reactions that occur in nuclear fusion?
Can you explain what a photon is and how it is made?
How does this impact life on Earth?
Answer:
Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles (neutrons or protons). The difference in mass between the reactants and products is manifested as either the release or the absorption of energy.
The photon is a type of elementary particle. It is the quantum of the electromagnetic field including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force. Photons are massless, so they always move at the speed of light in vacuum,
photons are in light so yeah
when you cut an onion, what happens to your eyes? what role do you think the onions' central vacuoles have in your reaction?
Answer:
They start to water because of the acid.
How do cells with the same set of DNA become a wide variety of specialized cells?
Answer:
Cellular differentiation
Explanation:
I think this is it. In cellular differentiation a cell changes from one cell to another so this might have something to do with this
Va deaner tish cleans another big fish of ns parasites, when type of symbiotic
relationship is this?
death
Paraitism
Commensalism
Mutualism
Which of the following is not a natural cause of extinction?
a.competition due to overpopulation
b.introduction of non-native species
c.catastrophic events
d.disease
Answer:
Introduction of Non-native species would be the answer. ( B )
Explanation:
Now let's break it down.
A. Competition due to overpopulation
Competition due to overpopulation, as competition of resources rises, species will fight among each other, and slowly, population will go down. But I don't see the reason of why it would cause an extinction... perhaps a decrease of population. See, once populations starts decreasing, resources will increase. And ONCE resources increase, populations starts increasing, and there goes competition. Resources decreases, populations decreases, and the whole process repeats. So I'm not quite sure whether it will cause extinction of a species.
B. Introduction of Non- native species.
So what does it mean by Non-native species?
It means that species that have no effect and doesn't exist in the ecosystem. So that will definitely not affect the population whatsoever.
C. Catastrophic Events
Well, common sense. Many people died of tsunamis, tornado and other natural disasters every year. Too many disasters can cause the population to cease.
D. Disease
This we can relate, especially the Coronavirus. Many humans died of the deadly virus. Same goes to animals. If a disease gets too deadly, population will decrease and drive the species to extinction.
So, the Answer would be B.
HOPE THIS ANSWER HELPED :)Among the given options, the one that is a natural cause of extinction would be:
b). Introduction of non-native species.
'Non-native species' are described as the species that are introduced to an ecosystem different from its native habitat.
These species are severe threat to the existing ecosystem of the new habitat including plants, animals, aquatic life, etc. where they've been shifted.
Thus, it is not a natural cause as these species are not naturally introduced but the humans introduce them.
They turn so dominating to get their food and other things that it lead not only harmful but also lead to the extinction of the native species.
Hence, option b is the correct answer.
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Are enzymes reactants? Explain your answer.
which of the following happens to a cell in hypotonic solution
A- The cell gains water and expands
B- The cell stays the same
C- The cell loses water and shrivels
D- Water moves out of the cell
Answer:
In a hypotonic solution, the solute concentration is lower than inside the cell. If the water continues to move into the cell, it can stretch the cell membrane to the point the cell bursts (lyses) and dies
Hypotonic solutions have lower solute concentrations than cells. If water keeps entering the cell, it can strain the membrane until the cell bursts and dies. Therefore, option (A) is correct.
What is hypotonic solution?In comparison to another solution, a hypotonic solution will have a lower solute concentration because of its composition. Without another solution to compare it to, it is impossible to determine whether a solution is hypotonic, isotonic, or hypertonic. A solution is said to be hypotonic when it has a relatively low concentration of solutes in comparison to another solution.
As a consequence of this, the solute concentration is lower in a hypotonic solution than it is inside of the cell. If the water continues to enter the cell, it has the potential to stretch the cell membrane to the point where the cell lyses and dies as a result of the rupture.
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What is the slope of 2/3
Answer:
Using the slope-intercept form, the slope is 0 .
Explanation:
Hope this helps!! :)
Which of the following is NOT a monomer?
A. an amino acid
B. a monosaccharide
C. a protein
D. a nucleotide