Explanation:
The Nebular hypothesis is the most widely accepted model in the field of cosmogony to explain the formation and evolution of the Solar System (as well as other planetary systems). It suggests that the Solar System formed from gas and dust orbiting the Sun. The theory was developed by Immanuel Kant and published in his Allgemeine Naturgeschichte und Theorie des Himmels ("Universal Natural History and Theory of the Heavens"), published in 1755 and then modified in 1796 by Pierre Laplace.
The solar nebular hypothesis describes the formation of our solar system from a nebula cloud made from a collection of dust and gas. It is believed that the sun, planets, moons, and asteroids were formed around the same time around 4.5 billion years ago from a nebula.
Why are natural bee populations inadequate at pollinating our crops
Which is an example of the beneficial application of plants in human society?
Answer: They provide oxigen to the human society
Explanation:Once they have water and carbon dioxide, they can use energy from sunlight to make their food. The leftovers from making the plant food is another gas called oxygen. This oxygen is released from the leaves into the air.
Gene investigated the effect of moisture on the rate of growth of mold on bread. He put two identical slices of bread on separate plates. He made one slice moist and kept the other slice dry. He left the uncovered plates on a table for 2 hours. Then, he sealed them in plastic bags and put them in a dark, warm place. He looked at them each day for five days. After five days, he observed that 50 percent of the moist slice was moldy, and none of the dry slice was moldy. If Gene observed the slices for three more days, what would he most likely observe?
There would be less mold on the moist slice. There would be more mold on the moist slice. There would be the same amount of mold on each slice. There would be no change in the amount of mold on either slice
Answer:
More mold on the moist slice
Explanation:
Assuming that the trend continues, then after another 3 days, a higher percentage (more than the original 50%) of mold will be found on the moist slice, while the dry slice may either be unaffected or may develop very little mold.
What is one difference between the structure of DNA and RNA?
I will give BRAINILEST
A. DNA is shorter than RNA
B. DNA is a double helix and RNA is a single helix
C. DNA is made of proteins and RNA is made of lipids
D. DNA is a single helix and RNA is a double helix
Answer:
I think it's B (I'm sorry if I'm incorrect)
Explanation:
RNA and DNA differ in three main ways: RNA is single-stranded, while DNA is double-stranded. Uracil is in RNA, while thymine is in DNA. RNA contains the sugar ribose, while DNA contains the sugar deoxyribose.
One difference between the structure of DNA and RNA is DNA is a double helix and RNA is a single helix. The correct option is B.
What are DNA and RNA structure?DNA and RNA, both are the genetic material, both are made up of protein and both structure is spiral.
The major difference in DNA and RNA is DNA is double-helical and RNA is single helical. DNA is found in all animals and plants, but RNA is present in bacteria.
Thus, the correct option is B. DNA is a double helix and RNA is a single helix
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Which living animal is most closely related to Cetaceans such as whales?
answer explanation:
Hippos and whales may look different in many ways, but they are actually each others' closest living relatives—sharing a common ancestor that lived about 55 million years ago.
Hippopotamus furthermore, the DNA testing revealed that whales share a DNA sequence found only in one other animal – indicating that among all the non-whale mammals alive today, whales' closest living relatives are none other than hippopotamus!
Can someone help me
what is. a tetrad?!?!?!?!
The four spores generated following meiosis in a yeast or other Ascomycota, Chlamydomonas or another alga, or a plant are known as the tetrad. Diploids are produced when parent haploids mate. Diploids sporulate and go through meiosis when the conditions are right.
What type of tissue, present in the walls of blood vessels, allows for regulation of vessel diameter
Answer:
smooth muscle
Explanation:
what causes a continent to grow?
Answer:
Architecture and the overall ability to be good as a community. That's how I see continents positively growing today.
Architecture means designing and building things.
Pronounce:
Arc-e-tex-ture
Hope this helps have a great day! ♣
why is the composition of oxygen in the alveoli lower than the composition of oxygen in the atmosphere?
Answer/ Explanation:
The respiratory system works to humidify incoming air, thereby causing the air present in the alveoli to have a greater amount of water vapor than atmospheric air. Alveolar air contains a greater amount of carbon dioxide and less oxygen than atmospheric air.
A few other reasons are....Alveolar air is partially replaced by atmospheric air during each breath
Oxygen is constantly absorbed into the blood from alveoli
Carbon dioxide is diffused into alveoli from blood
As air enters respiratory passages it becomes humidified diluting the inspired gases' partial pressures
hope i could help!
Which of the following does not distinguish a prokaryotic cell from a eukaryotic cell
Answer:What are the difference between prokaryotic and eukaryotic cells? Eukaryotic cells have membrane-bound organelles with a nucleus, and are large, while prokaryotic cells are small and do not have membrane-bound organelles. eukaryotic cells can also reproduce asexually by mitosis, while prokaryotic cells cannot.
Explanation:hope this helps and happy halloween
Prokaryotic cells do not have a membrane-bounded nucleus, but eukaryotic cells do not have such a nucleus'.
What does not distinguish a prokaryotic cell from a eukaryotic cell?Eukaryotic cells contain membrane-bound organelles, such as the nucleus, while prokaryotic cells do not. Differences in cellular structure of prokaryotes and eukaryotes include the presence of mitochondria and chloroplasts, the cell wall, and the structure of chromosomal DNA.
Thus, Prokaryotic cells do not have a membrane-bounded nucleus, but eukaryotic cells do not have such a nucleus'.
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Would you consider table salt to be made up of only one kind of mat-
ter? Explain why or why not in a few sentences
Answer: Salt is considered to be made of one type of matter because it is a pure substance.
Explanation:
how do power plants generate electricity? this is an integrated science question
Coal fired plants produce electricity by burning coal in a boiler to produce steam. The steam produced, under tremendous pressure, flows into a turbine, which spins a generator to create electricity. The steam is then cooled, condensed back into water and returned to the boiler to start the process over.
meaning of cytoplasm protoplasm and neucleoplasm and what's their relation with one another? explain.
Answer:
Explanation:
the relations of these three
Protoplasm refers to the living contents of cell and consists of cytoplasm and a nucleus. Cytoplasm refer to the matrix present outside the nucleus in which all the cell organelles are found embedded. The nucleoplasm/karyoplasm refer to the matrix present inside the nucleus only.
what are four possible renewable resources of electric energy
wood, wind, sunshine, geothermal energy, biomass and water stored behind dams in lakes and reservoirs.
hope this helps :))
Why should scientists classify organisms
Answer:
Explanation:
Scientists classify living things in order to organize and make sense of the incredible diversity of life. Modern scientists base their classifications mainly on molecular similarities. They group together organisms that have similar proteins and DNA.
Photosynthesis takes place in the chloroplasts of plant cells.
True
False
Answer:
True.
Explanation:
The chloroplasts' function is to take energy to perform photosynthesis. That is why there are no chloroplasts in animal cells.
Answer:
True
Explanation:
Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.
In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.
How does the process of photosynthesis support the transformation of energy?.
Answer:
there are two stages of photosynthesis which is the light and dark reaction stage. In the light reaction stage light from the sun is absorbed by the chlorophyll pigments and also split water molecules through a process called photolysis, in this stage light energy is transferred to chemical energy of ATP (adenosine triphosphate) and make reduced NADP (nicotinamide adenosine dinucleotide triphosphate). This stage justifies the second law of thermodynamics which states that the process of energy transformation cannot occur spontaneously unless there is a breakdown of energy from a concentrated form into a dispersed form.
Accidents can occur in meiosis wherein members of a chromosome pair fail to separate at anaphase. This is called _____.
Answer:
Accidents can occur in meiosis wherein members of a chromosome pair fail to separate at anaphase. This is called nondisjunction.
Explanation:
Answer:
Nondisjunction
Explanation:
Nondisjunction occurs when homologous chromosomes or sister chromatids fail to separate during mitosis or meiosis. This leads to daughter cells with unequal amounts of DNA. In fetuses in particular, this type of accident can have extreme consequences, such as the birth of a child with Down's Syndrome or a premature death.
If there was nothing to pull you in (no gravity) what
direction would you be heading in space?
Answer:
forward in one direction
Please answer the question which I attached to this file
Answer:https://brainly.com/question/16020352
Explanation: hope this helps!
The capacity for _______________ protects us in daily life from being overwhelmed by all the sensory signals impinging on our receptors.
Which description justifies why the theory of evolution is a theory and not a law?
Answer:
Explains how organisms change in response to the environment
Explanation:
identify the organelles labeled
Answer:
F is mitochondria, A is nucleus
Explanation:
hope this helps xx
At which hour was the bacteria's population growing the fastest in the interactive? Question 3 options: 0-4 4-8 8-12 12-14 14-18.
The bacteria's population growing at the fastest rate when environmental conditions are suitable.
Factors affecting population growthThe bacteria's population growing at the fastest rate when all the conditions such as temperature, food availability and other factors are present in normal condition. If not then the population grows slowly so we can conclude that the bacteria's population growing at the fastest rate when environmental conditions are suitable.
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A characteristic of a dna molecule that is not characteristic of a protein molecule is that the dna molecule.
Answer:
It can replicate itself
Explanation:
A characteristic of DNA molecule that is not characteristic of a protein molecule is that the DNA molecule can replicate itself
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Which organism is an autotroph?
fox
squirrel
tree
fungus
Answer:
The tree is the autotroph.
Explanation:
First, let's define what autotrophs are.
Autotrophs are organisms that make their own food, not relying on other organisms to eat.
Now let's explain why trees are the answer.
Trees use photosynthesis to make their own foods in the form of glucose (or sugar). The plant then uses these to sustain themselves. This process makes them an autotroph.
Answer:
Pretty sure its a tree, an autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide. which would be a tree
what is the best adam
Answer:
dont you mean atom? and i have ur answer :)
Explanation:
Bohr’s atomic model
do you think you can help?
Answer:
D. Mass
Explanation:
Mass is not a state of matter, unlike the other items listed. Mass is a body of matter or how much matter is in an object.
20 POINTS, BRAINLIEST, RATING, ETC!
In 3 to 5 sentences, analyze potential impacts of oceans on human populations as the result of climate change in the current century
Answer:
Due to continuous global warming, the oceans tend to gain more heat, and hence the temperature rises. In the current century, the heated conditions of the oceans can be threatful for the human population. Also, the increase in the sea levels will have serious consequences on the health of mankind and their quality of life.
Explanation:
As the overabundance heat and energy warms the ocean, the temperature change causes unprecedented cascading effects such as ice melting, sea-level rise, marine increased temperatures, and ocean acidification.
What is ocean acidification?The massive quantity of carbon dioxide absorbed by the ocean dissolves as carbonic acid in seawater.
This is known as ocean acidification, and it is literally causing a sea change that is threatening the basic chemical balance of ocean and coastal waters from pole to pole.
Changing ocean chemistry, according to laboratory studies, will
Harm life forms that rely on carbonate-based shells and skeletons, Harm organisms which are usually sensitive to acidity.Harm organisms in higher tropic levels of the food chain that feed on these sensitive organisms.As the ocean warms due to an abundance of heat and energy, the temperature change causes unprecedented cascading effects such as ice melting, sea-level rise, increased marine temperatures, and ocean acidification.
Thus, the human population can be widely affected as a result of impacts of climate changes.
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