Take a subject of origins or a question you have and write a minimum of 500 words as a research project. Be sure to list all references and resources as part of your bibliography. Other information can be found at a library or other reference source. (It has to be the creation theory because I go to a christian school.)
Answer:
Life on Earth began more than 3 billion years ago, evolving from the most basic of microbes into a dazzling array of complexity over time. But how did the first organisms on the only known home to life in the universe develop from the primordial soup? One theory involved a "shocking" start. Another idea is utterly chilling. And one theory is out of this world! Inside you'll learn just how mysterious this all is, as we reveal the different scientific theories on the origins of life on Earth.Electric sparks can generate amino acids and sugars from an atmosphere loaded with water, methane, ammonia and hydrogen, as was shown in the famous Miller-Urey experiment reported in 1953, suggesting that lightning might have helped create the key building blocks of life on Earth in its early days. Over millions of years, larger and more complex molecules could form. Although research since then has revealed the early atmosphere of Earth was actually hydrogen-poor, scientists have suggested that volcanic clouds in the early atmosphere might have held methane, ammonia and hydrogen and been filled with lightning as well. The first molecules of life might have met on clay, according to an idea elaborated by organic chemist Alexander Graham Cairns-Smith at the University of Glasgow in Scotland. These surfaces might not only have concentrated these organic compounds together, but also helped organize them into patterns much like our genes do now. The main role of DNA is to store information on how other molecules should be arranged. Genetic sequences in DNA are essentially instructions on how amino acids should be arranged in proteins. Cairns-Smith suggests that mineral crystals in clay could have arranged organic molecules into organized patterns. After a while, organic molecules took over this job and organized themselves.
Explanation:
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Answer: D
Almost completely sure it is D
Explanation:
Since the rats are the main source of food, then there will be a decrease in all the species the base off of that one source of food.
What happens in the cytoplasm?
Answer:
see below :)
Explanation:
The cytoplasm functions to support cellular molecules and organelles. Many cellular functions such as protein synthesis and mitosis.
Answer:
hello
Explanation:
The cytoplasm functions to support cellular molecules and organelles. Many cellular functions such as protein synthesis and mitosis.
Jayden wants to model the hydrological cycle. He puts some water in a small plastic cup, draws a line on the cup at the water level, and places the cup upright on a window sill. After three days of being undisturbed, the amount of water in the cup is below the line Jayden drew. This is an example of:
A. Transpiration
B. Evaporation
C. Condensation
D. Precipitation
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Answer:
cc
Explanation:
When you do something anaerobic, your body makes a natural chemical called __________ that is like emergency energy for your muscles.
Group of answer choices
lactic acid
oxygen
testosterone
sweat
Answer:
Sweat?
Explanation:
Answers:
lactic acid
Explanation:
In anaerobic respiration, glucose breaks down without oxygen. The chemical reaction transfers energy from glucose to the cell. Anaerobic respiration produces lactic acid, rather than carbon dioxide and water. Unfortunately this can lead to painful muscle cramps.
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Answer:
Answer below!
Explanation:
1. Genotypic ratio: 1 : 1 ( GG = 50%, Gg = 50% )
Phenotypic ratio: 1 : 0 ( Since the dominant trait always shows, the plant would only exhibit trait G, green pods = 100 % )
2. Genotypic ratio: 1 : 1 ( Rr = 50%, rr = 50% )
Phenotypic ratio: 1 : 1 ( Oval shell = 50%, round shell = 50% )
3. Genotypic ratio: 1 : 0 ( ss = 100% )
Phenotypic ratio: 1 : 0 ( short tooth = 100% )
4. Genotypic ratio: 1 : 0 ( Bb = 100% )
Phenotypic ratio: 1 : 0 ( brown eyed = 100% )
Hope this helps, good luck!
PLEASE HELP!!
What government entity was created to set industry standards for water quality?
Department of Agriculture
National Oceanic and Atmospheric Administration
Environmental Protection Agency
Answer: Environmental Protection Agency
Explanation:
v-FLIPs are viral proteins that were first identified as modulators of apoptosis; they contain two death effector domains, which are also found in some initiator caspases such as procaspase-8. These v-FLIP proteins can be recruited to the DISC through the binding of the death effector domain to similar domains in the adaptor proteins but are otherwise catalytically inactive. What do you think is the effect of v-FLIP expression in the host cell?A. It promotes apoptosis mainly via the extrinsic pathway.B. It inhibits the extrinsic pathway of apoptosis.C. It activates only the mitochondrial pathway of apoptosis.D. It inhibits the intrinsic pathway of apoptosis.E. It enhances the caspase cascades in both the intrinsic and extrinsic pathways.
Answer:
B. It inhibits the extrinsic pathway of apoptosis
Explanation:
Apoptosis is a cellular pathway that leads to programmed cell death. Viral FLICE-inhibitory proteins (FLIPs) bind to the adaptor proteins and block the interaction between the DISC complex with the caspase-8 protease enzyme, which triggers apoptotic cell death. In consequence, cells become resistant to Fas-mediated apoptosis, a pathway initiated by the FADD protein which is known to recruit caspase-8.
Identify, analyze, and relate the internal (Earth) and external (astronomical) conditions that contribute to global climate change. Include ultraviolet rays, ozone layer, CO2 in the atmosphere etc PLZZZZZZ HELP
Answer:
Carbondioxide gas is responsible for global warming and climate change.
Explanation:
The climate change mostly occur due to increase in the concentration of carbondioxide gas in the atmosphere. The CFCs gases causes depletion of ozone layer in the atmosphere which is responsible for prevention of ultraviolet rays coming to the earth. The burning of fossil fuels in the vehicles and industries produces huge amount of carbondioxide gas that is released in the atmosphere that allows the sunlight to the earth but block its way after reflection which remain suspended in the lower surface causes increase in temperature which leads to global warming.
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Pick one organism that lives in a savanna and explain why it has adapted to this environment.
Answer:
let's use Zebra's as an example of an Animal living in the Africa Savannah, these animals have adapted to their environment for survival, during shortage of water and food they migrate (moving to another area) and hibernating (to conserve power) until the season is over.
Explanation: sorry to much
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What is a climax community?
A.When succession is complete and biodiverse sustainability has been reached.
B.When limiting factors and interactions of organisms create balance within a community.
C.When the maximum capacity of organisms is reached within a community.
D.All of the above are correct.
Answer:
B. When limiting factors and interactions of organisms create balance within a community.
why is cell division of prokaryotic cells less complicated than in eukaryotic cells
Answer:
The sexual organisms to develop from single cell.
Explanation:
A ________ can contain many ecosystems?
A. habitat
B. ecosystem
C. biome
D. population
Answer:
C. Biome
Explanation:
Hope this helps!
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Answer:
I think that the answer is B let me know if I'm wrong
brainiest PLS
Explanation:
An adaptation is:
A) a physical characteristic that an organism develops during its life in response to
environmental change.
B) the Way that an organism acts when under high selective pressures.
C) an inherited trait that helps an organism to survive and reproduce in its environment.
D) a chemical change in the DNA of an organism that produces variation of genes.
Answer:
C
Explanation:
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The table shows which mRNA codons code for various amino acids.
Which amino acid sequence will be produced by translation of the
mRNA sequence UAC UCU ACC?
Select one:
a. Tyr - Ser - Thr
b. Thr - Ser - Tyr
c. Asn - Pro - Thr
d. Thr - Pro - Asn
Answer: A
Explanation:
UAC = Tyr
UCU = Ser
ACC = Thr
So the polypeptide chain corresponds to A
what kind of nucleic acid is found in retroviruses?
Answer:
A retrovirus is an RNA virus that is duplicated in a host cell using the reverse transcriptase enzyme to produce DNA from its RNA genome. The DNA is then incorporated into the host's genome by an integrase enzyme. The virus thereafter replicates as part of the host cell's DNA.
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The rock pocket mouse is found mainly in rocky areas of the deserts of the southwestern United States. Most of these mice have light brown fur that allows them to blend in with the desert rocks where they live. However, there is an area of New Mexico with black rock left over from old volcanic eruptions. Scientists discovered that many of the rock pocket mice living on the black volcanic rock have dark fur. What is the best explanation for this phenomenon
Answer:
I don't know ghlkfaa fdhcaaacvi gaadgjo
Hummingbirds need large amounts of energy to flap their wings between 60 and 200 times per second. Their wings beat so rapidly that it is difficult to see them move. They often appear suspended in air for extended periods of time without changing their location. Hummingbirds have long bills and grooved tongues to reach into flowers to feed on flower nectar. They also feed on insects.
The body system most directly interacting with the skeletal system to enable hummingbirds to beat their wings between 60 and 200 times per second is the-
F.
muscular system.
G.
integumentary system.
H.
endocrine system.
J.
circulatory system.
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why do animals in cold countries have thick fur
How does the circulatory system work as a defense system?
Answer: It provides protection of the body by white blood cells, antibodies, and complement proteins that circulate in the blood and defend the body against foreign microbes and toxins. Clotting mechanisms are also present that protect the body from blood loss after injuries.
Answer:
The human circulatory system has a complex network of blood vessels that reach all parts of the body. This extensive network supplies the cells, tissues, and organs with oxygen and nutrients, and removes carbon dioxide and waste compounds.
hope this helps!
Explanation:
What are the chances of a child with a pink body?
Answer:
very high
Explanation:
Which phrase best describes the nucleus? a. The site of lipid and steroid production b. The site of protein production c. The organelle that produces ATP d. The organelle that houses DNA
Answer: D
Explanation:
The nucleus is the organelle that houses DNA
A describes the smooth ER. B is a protein. C is the mitochondria.
A big-toed elephant with long eyelashes has children with a small-toed elephant with short eyelashes. All of the
children have big toes and long eyelashes.
1. What are the genotypes of the parents?
2. If two children mate, what phenotypic ratios are expected in the grandchildren?
Answer:
the big toed elephant and long eyelash is TT (t being toes), and EE (eyelashes), and the other parent is tt, ee.
part 2, the gran kids will have 3/4 chance to be big eyelash and big toenail and 1/4 to be small eyelashes and small toenails.
Explanation:
posidon spreding the sea legend and the real sience behind it with titonic plates
Answer:
YA
Explanation:
What are the three types of forests age and structure?
Answer:
Tropical rain forests grow around the equator in South America, Africa, and Southeast Asia, The temperature is stable year-round, around 27°C (60° Fahrenheit). As you can tell from the name, it rains a lot in these forests. Most tropical forests receive at least 200 cm (80 inches) of rain in a year. Tropical forests generally have a rainy and dry season. Temperate forests occur in the next latitude ring, in North America, northeastern Asia, and Europe, temperature ranges from -30 to 30°C (-22 to 86 F) and the forests receive 75-150 cm (30-60 in) of precipitation per year,
Explanation:
3. What is the general pattern of current flow and temperature within the Atlantic basin?
Answer:
Have both clockwise and anticlockwise directions and warmer temperature.
Explanation:
Atlantic oceans have a circular pattern of surface currents that moves in the clockwise direction in the Northern Hemisphere and counterclockwise direction in the Southern Hemisphere while on the other hand, the temperature of the Atlantic basin is warm and having high salinity in the water. The Atlantic Ocean has about 9 degrees Celsius more warmer than the water of Pacific Ocean that leads to the warmer climate of Atlantic basins.