Answer:
According to big bang model, the universe was born during a period of inflation that began about 13.8 billions years ago. Like a rapidly expanding balloon, it swelled from a size smaller than an electron to nearly its current size.
Initially the universe was permeated only by energy, some of the energy congealed into particles, which assembled into light atoms like hydrogen and helium.
At first the atoms turned into galaxies, then stars and then other elements were forged.
Explanation:
These are what happened when the universe was forming.
Hope it helps.
What is the process of meiosis 2
Answer:
During meiosis II, the sister chromatids within the two daughter cells separate, forming four new haploid gametes. The mechanics of meiosis II is similar to mitosis, except that each dividing cell has only one set of homologous chromosomes.
Explanation:
When water freezes, it expands/contracts ???
Answer:
expands
Explanation:
when water freezes is expands, that's why if you put a full glass in the freezer it will shatter.
What effect would overfishing most likely have on a population of fish in a lake?
___________________ competition occurs between two different species. _____________ competition occurs between organism of the same species.
a.Interspecific; Symbiotic
b.Parasitic; Commensalism
c.Predation; Mutualistic
d.Interspecific; Intraspecific
Answer:
c again
Explanation:
If there was a power outage in a movie theater and only a few dim
emergency lights were lit,which cells in the eye would be most important
for seeing your way to the exit ?
Answer:Light-sensitive cells in the retina at the back of our eye allow us to see. The human eye has two types: cones and rods. Rods are extremely efficient; a tiny amount of light can trigger them. They are responsible for our night vision
Explanation:
Light-sensitive cells in the retina at the back of our eye allow us to see. The human eye has two types: cones and rods. Rods are extremely efficient; a tiny amount of light can trigger them. They are responsible for our night vision
A neutral atom has the same number of protons as it does electrons.
True or false
Answer:
true
Explanation:
if it is neutral it has no charge
What kind of cells does HIV target? How does this targeting affect the hosts body process
Answer:
The white bloods cells, it takes control of the DNA.
Explanation:
If 15% of a DNA double helix is the base adenine what are the percentages for the following bases?
Thymine _____
Guanine _____
Cytosine _____
Answer:
Thymine 15%
Guanine 30%
Cytosine 30%
Explanation:
Remember Chargaff's rules: C=G, T=A.
A = T
.15 = T
Now we've got .30 A and T, so we know 1 - .3 = .7 of the DNA should be guanine and cytosine.
.7 / 2 = .35
.35 = G
.35 = C
brainliest to right answer Describe how proteins are used in active and passive transport. How do they differ?
Answer:
Active transport works against the concentration gradient, moving substances from areas of low concentration to areas of high concentration. While passive transport moves from areas of high concentration to areas of low concentration. The protein is used as a channel for active transport.
Explanation:
what is the..............
.....part of the living material
Answer:
hey! hope this helps love!
The cell is the smallest unit of living material capable of carrying on all activities necessary for life. ... Only animal cells are without a cell wall. Protoplast is the living part of the cell inside the cell wall and includes the cell membrane and the protoplasm.
You are standing close to a tall tree when you suddenly see lightning and hear thunder. Should you take shelter under the tree, run across the field to the nearest building, or do something else? Explain why
Answer:
You should never take shelter under a tree when lightening. You should get away from the tree and get as low down to the ground as possible. You do not always have enough time to get to a building so it depends on your surroundings/situation.
Explanation:
Hope this helps!
Which organelle makes proteins that are needed by the cell
Answer:
ribosomes
Explanation:
Ribosomes can be described as large biomolecular complexes that are composed of RNA (particularly ribosomal RNA) and proteins.
They act as site for the synthesis of protien in both prokaryotes as well as eukaryotes.
mRNA (messenger RNA) arrives at ribosome after it gets transcribed from DNA.
mRNA gets converted to particular protein (through assembly of amino acids that are carried by specific tRNA molecules according to codons in the mRNA) that is needed by the cell.
This process is known as translation and it takes place at the site called ribosome.
hope i helped
-lvr
Answer:
Ribosomes
Explanation:
they make protein for the cell, hope this helps
one similarity between natural and biological disasters
they both impact people and animal life
Explanation:
8 What does the sample space represent?
Answer:
In probability theory, the sample space (also called sample description space[1] or possibility space[2]) of an experiment or random trial is the set of all possible outcomes or results of that experiment.[3] A sample space is usually denoted using set notation, and the possible ordered outcomes are listed as elements in the set. It is common to refer to a sample space by the labels S, Ω, or U (for "universal set"). The elements of a sample space may be numbers, words, letters, or symbols. They can also be finite, countably infinite, or uncountably infinite.[4]
For example, if the experiment is tossing a coin, the sample space is typically the set {head, tail}, commonly written {H, T}.[5] For tossing two coins, the corresponding sample space would be {(head,head), (head,tail), (tail,head), (tail,tail)}, commonly written {HH, HT, TH, TT}.[6] If the sample space is unordered, it becomes {{head,head}, {head,tail}, {tail,tail}}.
For tossing a single six-sided die, the typical sample space is {1, 2, 3, 4, 5, 6} (in which the result of interest is the number of pips facing up).[7]
A subset of the sample space is an event, denoted by E. Referring to the experiment of tossing the coin, the possible events include E={H} and E={T}.[6]
A well-defined sample space is one of three basic elements in a probabilistic model (a probability space); the other two are a well-defined set of possible events (a sigma-algebra) and a probability assigned to each event (a probability measure function).
Another way to look as a sample space is visually. The sample space is typically represented by a rectangle, and the outcomes of the sample space denoted by points within the rectangle. The events are represented by ovals, and the points enclosed within the oval make up the event.[8]
Which is the best description of photophosphorylation?
the absorption of light energy by chlorophyll
the conversion of light energy to chemical energy
the removal of a phosphate group from a molecule
the conversion of ADP to ATP using light energ
Answer:
(D) . the conversion of ADP to ATP using light energy
3. Nowadays many people are using sunscreen lotions as per doctor's advice to protect
themselves from cancer of skin. When asked, the teacher told the class about a protective
cover of earth which is fast depleting due to a human activity. Name this cover and which
activity is the teacher referring to? Discuss in detail.
Answer:
Ozone layer... pollution
Explanation:
The ozone layer is a layer in the atmosphere which provides a barrier between harmful UV rays and the Earth. However, pollution is quickly depleting the layer which in turn creates a higher risk of skin cancers and other conditions caused by harmful UV rays.
look at the image which statement explains what would most likely happen if the moon were closer to earth ?
Answer:The tides would be higher
Answer:
3rd one
Explanation:
yw
Is biomass in the rainforest an energy source or energy sink
Answer:
Is biomass in the rainforest an energy source or energy sink
Explanation:
how many alleles controlled flowers color in mendel’s experiments
Answer:
two alleles
Explanation:
Mendelian inheritance refers to the inheritance of traits controlled by a single gene with two alleles, one of which may be dominant to the other. Not many human traits are controlled by a single gene with two alleles, but they are a good starting point for understanding human heredity
where is most glucose absorbed into the blood
Witch of the following states why one of the models is better for moving more nutrients in and out of the cell?
Answer:
option C
Explanation:
B has smaller cells but more surface area.
If the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. Small cells, therefore, accumulate more nutrients.What is the mechanism through which nutrients pass through cells?Circulatory system, which consists of heart, blood and blood vessels, are responsible for transporting nutrients to the cells of the body. Specifically, nutrients are transported throughout body through blood via capillaries, tiny blood vessels that connect arteries to veins.
To know more about blood vessels here
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Was it beneficial or harmful for the Balanus barnacle to add the Chthamalus barnacle? Explain
Answer:
harmful. (more info below)
Explanation:
Balanus may compete with Chthamalus through crowding or smothering, but Chthamalus can inhabit higher tide levels than Balanus since it is more immune to desiccation. Lower on the sea, the barnacles of acorn combine with the Endoclades (Turfweed) assemblage, and are also abundant on the shells of acorn. To conclude, it was a bad idea is add the balanus barnacle to the Chthamalus barnacle becuase balanus barnacles can crowd Chthamalus barnacle.
hope this helped!
The data type that contains recorded measurements is called
Answer:
The data type that contains recorded measurements is called [X] data. Quantitative.
Explanation:
Answer:
Quantitative Data
Explanation:
Qualitative measurement focuses on collecting information that is not numerical. You can remember this by thinking of the word 'quality. ' Quality is not something that you measure with numbers. You don't say that dinner was 3 qualities, or that park bench is only 1 quality.
Quantitative data is data expressing a certain quantity, amount or range. Usually, there are measurement units associated with the data, e.g. metres, in the case of the height of a person. It makes sense to set boundary limits to such data, and it is also meaningful to apply arithmetic operations to the data.
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Read the following claim.
The energy animals need to survive was once energy from the sun.
What evidence from the article supports this claim? Think about energy pyramids, then explain how the evidence from the article supports this claim.
Answer: The energy from the sun is the only source of energy which has the ability to sustain life on earth.
The energy pyramid states that the transfer of energy is unidirectional and it flows from the producers to the consumers.
There are different trophic levels at which the organism are found say herbivores, carnivores and top predators.
All of the organism are dependent on the producers for their source of energy.
hence, the sunlight helps autotrophs to make food and herbivores feed on them and then the carnivores animals feed on herbivores and then the top predators feed on the carnivores animals.
So, ultimate source of energy on earth is sun, which directly or indirectly provides energy to the producers and other animals.
What the walls of small intestine produces?
Answer:Mucous
Explanation:
Consider this animal cell. The organelles in an animal cell are labeled. Part D are stacked tubular structures. Which organelles are labeled D, and what is one feature that distinguishes them from the other labeled organelles? chloroplasts; the only organelles that produce sugars from sunlight ribosomes; only found in animal and bacterial cells centrioles; found in animal cells but not plant cells mitochondria; the only energy-generating structures found in cells
Answer:
The image of the animal cell was not included in the question, the image has been added as an attachment.
The answer is centrioles; found in animal cells but not plant cells
Explanation:
According to the question, the image in the attachment section is an animal cell with labelled organnelles. An animal cell does not possess a Chloroplast, which is unique to only plant cells. Hence, organnelles D cannot be Chloroplast.
Ribosomes are organnelles made up of a complex of RNA and proteins. They are the site of protein synthesis, which occurs in all living cells. Hence, all cells including plant and animal cells contain Ribosome organnelles. Therefore, it is a wrong choice.
Centrioles are cylindrical tube-like structures made up of microtubules arranged in a specific pattern. Centrioles are present only in animal cells and play a major part in cell division, where they organize microtubules that separate chromosomes. As seen in the image, the two centrioles are perpendicular to one another, forming a CENTROSOME. A plant cell does not possess centrioles instead they contain microtubules organizing centres (MTOC).
Mitochondrion are present in both animal and plant cells as energy-generating organnelles but they are not stacked tubular structures as described in the question.
Answer:
its b on edge 2022
Explanation:
how does the size of a hydrocarbon molecule affect the volatility of crude oil?
Answer:
Longer hydrocarbon molecules have a stronger intermolecular force. More energy is needed to move them apart so they have higher boiling points . This makes them less volatile and therefore less flammable .
How does the amount of carbon the us emits compare to the other countries
The U.S emitted 5.1 billion metric tons of energy-related carbon dioxide, while the global emissions of energy-related carbon dioxide totaled 32.5 billion metric tons.
Cures and medicines for diseases, such as diabetes, can be credited to the study of _____.
these are studies of BIOLOGY
Which of the following situations would be followed by primary succession? (Choose all that apply) severe landslides overgrazing lava flows earthquake
Answer: lava flows, earthquakes
Explanation:
The primary succession begins in an area, where no life sustains initially. Such regions have no soil thus incapable of sustaining life. The land is considered primitive or underdeveloped.
The lava flow, retreating glaciers, sand dunes, earthquakes are the factors which are responsible for primary succession.
The lava will flow over a surface and will solidify into rocks. The rocks undergo withering. The earthquakes are responsible for disturbing the land.
earthquake, lava flows, severe landslides
Primary succession begins on a bare area, such as rock, without vegetation or soil.
