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Read about an early experiment that suggested one way simple cells could have emerged out of a “primordial soup” of complex molecules.
Write one to two sentences describing the environmental conditions in which the first cells likely emerged. How would these cells have survived?
Answer:
Here is the presentation I made. Good luck!
Explanation:
I won with this presentation two days ago so it is a guaranteed to be correct.
Describe the roles of light, carbon dioxide, and water in the production of foox and oxygen
Answer:
Light is absorbed in the plant's leaves. Carbon dioxide is taken in through the stomata. Water is absorbed into the xylem through the roots carried through the plant to the leaves.
Explanation: Then the plant uses all of these ingredients to produce food and oxygen. The food is carried throughout the phloem and is then used to grow and develop while the oxygen is released out of the stomata.
Describe the two types of ions
Answer:
anions and cations
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What are the properties of Carbon and what is it used for?
If a long tail is a dominant characteristic, in which case is the characteristic of a long tail definitely expressed?
when at least one parent has a long tail
when both parents have a long tail
when neither allele contains instructions for a long tail
when at least one allele contains instructions for a long tail
Answer:
When both parents have a long tail :)
Explanation:
the short tail trait is now recessive so it cant happen on its own. The offspring will most likely have a long tail just like thae parents :)
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Answer:
When at least one allele contains instructions for a long tail
Explanation:
Gregor Mendel discovered that an organism receives two forms of a gene called ALLELE for a particular trait. Each allele encodes or represent a different trait in that same gene. However, according to Mendel, one allele called DOMINANT allele is capable of masking the expression of the other allele, called RECESSIVE allele. This means that in a heterozygous state i.e. combination of the two different alleles, the dominant trait encoded by the dominant allele will always be expressed.
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Which came first? The chicken or the egg?
Answer:
i mean the chicken woulda had to come first to lay the egg in the first place
Explanation:
Answer:
According to scientists chicken CE first because chicken are developed form of dinosaur
and dinosaur also lay eggs. But technically egg came first because The oldest fossils of dinosaur eggs and embryos are about 190 million years old. Archaeopteryx fossils, which are the oldest generally accepted as birds, are around 150 million years old, which means that birds in general came after eggs in general.
1. The process many autotropbs go through to convert solar energy into chemical energy
Answer
the name of the process is photosynthesis
2.
Adaptations require a change in genes.
A.TRUE
FALSE
Answer:
The answer is True
The absorbed light energy by plants is then used to change the carbon dioxide into sugar that plants can use or store as ______.
Answer:
Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.
Explanation:
You guys are the best
Answer: Thanks
Explanation:
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Which of the following is NOT an advantage of nuclear power?
A: Large fuel supply
B: Much lower carbon dioxide emissions
C: Low probability of accidents
D: High environmental impact from accidents
Answer:
D: High environmental impact from accidents
common sense
Explanation:
What is anabolism? Give an example. What is catabolism also give an example
Answer:
Anabolism is the synthesis of complex molecules in living organisms from simpler ones together with the storage of energy.
Examples of anabolism: bone growth and mineralization, and muscle mass build-up.
Catabolism: the breakdown of complex molecules in living organisms to form simpler ones, together with the release of energy.
Examples of Catabolism: glycolysis, the citric acid cycle, the breakdown of muscle protein in order to use amino acids as substrates for gluconeogenesis, the breakdown of fat in adipose tissue to fatty acids, and oxidative deamination of neurotransmitters by monoamine oxidase.
A molecule is considered to be organic contains
A( hydrogen
B( oxygen
C( carbon
D( nitrogen
Answer:
Your answer should be C.
Explanation:
An organic molecule is a molecule that contains carbon atoms (generally bonded to other carbon atoms as well as hydrogen atoms).
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How many did you observe to be yellow
Which of these statements is true?
A. Species do not interact with each other in the course of succession.
B. During succession, new species move into an area and colonize it, and are later replaced by newer species.
C. Most ecological successions occur over 10 to 15 years.
Answer:
Opt B is the right ans....ig this is according to the charles darwins theory...survival of fittest
The true statement is "During succession, new species move into an area and colonize it, and are later replaced by newer species. Thus, the correct option is B.
What is Succession?Succession may be defined as the gradual and continuous replacement of one community by another community over time.
Succession is always taking place by the better competitor. In the bare area, new species arrive, stabilize themselves, and colonize themselves.
After a specific period of time, new species are replaced by them, and now they got stabilized in the same area. This cycle of succession gradually works in a similar manner.
Therefore, the correct option is B.
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Which of the following is NOT considered a sustainable-development strategy for management of Earth’s resources?
Answer:
what are the options...?
This is the complete question
Which of the following is not considered a sustainable development strategy for management of earths resources?A. Contour plowingB. Desertification C. Crop rotationD. Selective harvesting of tree
The following is NOT considered a sustainable-development strategy for management of Earth’s resources is Selective harvesting of trees.
What is a sustainable future?If a society wants to make use of materials which can be recycled, then it has good plans for building a sustainable future for itself as it would be self-dependent and not have to rely on other nations.
With this in mind, if a country wants to build a sustainable future for itself, then it would have to use local resources more because this would increase self-sufficiency and reduce dependency.
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When a black moth is crossed with a white moth, about 25% of their offspring are black. What is the genotypes of the parents
Answer:
Heterozygous
Explanation:
means having two different alleles of a particular gens
How did the move by the Portuguese royal family to Rio de Janeiro in 1808 diminish sentiments toward independence, and to what extent did the presence of the monarchy in Brazil lead to a break with Portugal in 1822?
The reason why the Portuguese loyal family left Portugal for Brazil was because of the invasion of the French under Napoleon I in 1807.
This arrival of the Portuguese heralded the Modernization that began to occur throughout Brazil.
Effect of the Presence of the Monarchy in BrazilThe presence of the Monarchy in Brazil was very instrumental in the political and social history of brazil. The presence of the Monarchy led to the following
Independence was gained with no significant struggle.The Portuguese crown prince becoming Emperor of Brazil in 1822. Slavery was abolished without a civil war in 1888.The Empire became a republic without a struggle in 1889.Learn more at
Question 11 of 25
How are photosynthesis and cellular respiration related?
A. Cellular respiration is the process animals use to produce glucose,
while photosynthesis is the process plants use to produce
glucose.
B. The products of photosynthesis are the reactants of cellular
respiration.
C. Photosynthesis produces water molecules, while cellular
respiration splits water molecules apart.
O D. Cellular respiration provides the energy for photosynthesis
SUBMIT
Answer:
option A is the answer for this question
3. If 98 out of 200 individuals in a population express the recessive phenotype, what percent of the population
are heterozygotes?
Answer:
Explanation:
Q:
If 98 out of 200 individuals in a population express the recessive phenotype, what percent of the population would be heterozygotes?
A:
0.42 or 42%
The recessive phenotype is the phenotype that is expressed only when the recessive condition is found in both alleles.
The percent of the population that would be heterozygous is 42%
If 98 out of 200 individual express the recessive allele = 98/200 = 0.49. This is the phenotypic frequency of the recessive allele (q²)... q = 0.7 (√0.49)
Since p + q = 1
1 - 0.7 = 0.3 = p
To find the percent of heterozygous...p² + 2pq + q² = 1
Where 2 x 0.3x0.7= 0.42
Therefore, the percent of the population that are heterozygous is 42%
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I need help with this 9th grade biology question
Answer:
what kind of a help you need?
Some members of a photosynthetic plant species are genetically resistant to an herbicide, while other members of the same species are not resistant to the herbicide. Which combination of events should cause the most effective replacement of the non-herbicide-resistant strain of plants by the resistant strain
Answer:
Formulate a solution that targets the cause of each strain of plants makeup of why the plant is resistant
Explanation:
The fossil record is best at preserving visible changes in organisms through geologic time. This visible change is referred to as
The fossil record is best at preserving visible changes in organisms through geologic time. This visible change is referred to as the evolutionary change.
The importance of fossil recordFossils are the remains or impressions of a historical organisms which are preserved as a mold or in rocks due to pressure.
Fossil records are information made concerning these historical organisms about:
the structure of the organisms, what they ate, what ate them, in what environment they lived, and the order in which they lived.When these rocks are studied, visible changes in organisms through geologic time are observed which is that simple life forms gradually evolved into more complex ones.
Therefore, evolutionary change. is that visible changes noticed in fossil records.
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What is the importance of chromosomes in the human body?
They move materials into and out of the cell.
They carry the genes that determine inherited traits,
They release the energy stored in food.
They assemble proteins needed by the body.
Answer:
B.) they carry the genes that determine inherited traits
Explanation:
To put it simply, chromosomes are important because they contain the entire (or at least the vast majority of) genetic information for an organism. The organism's DNA is contained within the chromosome as a long series of nucleotides that are organized into genes
Answer:
They carry genes that determine inherited traits. Chromosomes are the determining factor in cells that store each individuals' unique traits only found it that specific person. All humans have 23 pairs of chromosomes (a total of 46) in them.
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Select choices that result from hydrogen bonding.
Which of the following does not occur in an aquatic ecosystem as a result of nutrient loading?
a. acidification of the water
b. algae growth as a result of eutrophication
c. degraded quality of water for human and livestock consumption
d. improved water habitats for human recreation
Answer:
D
Explanation:
Overdosing on nutrients, especially nitrogen and phosphorus, can act as fertilizer and promote an excessive quantity of algae development in water bodies. Thus, option C is correct.
What is nutrient loading?Eutrophication, a process wherein water bodies get an excessive amount of inorganic nutrients, mainly N and P, promotes an excessive growth of plants and algae, is caused by nutrient enrichment in aquatic water bodies.
The calculation of annual loads involves multiplying daily flow by daily nutrient concentration and averaging throughout the course of the year.
Since samples were only taken once a week at most, daily concentration measurements are not available; therefore, daily concentration data must be entered to calculate loads.
Therefore, improved water habitats for human recreation.
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A circle with a diameter of 16cm
Explanation:
radius is 8 because radius is half of a diameter
the table below shows the role of different substance during photosynthsis.
Answer:
Chlorophyll stores chemical energy needed for photosynthesis.
Explanation:
What did the comparative study on chytridiomycosis teach scientists studying white-nose syndrome in bats?Select one:a. Humans were responsible for the spread of chytridiomycosis, but not white-nose syndrome.b. A novel fungal infection could spread to colonies and cause dramatic population crashes, as seen in the comparative study.c. Chytridiomycosis affected only certain amphibians, so the comparative study could not teach the scientists anything useful.d. White-nose syndrome affects bats but does not cause death in organisms like chytridiomycosis does in amphibians.e. It was probably not a fungal infection affecting the bats and scientists needed to look elsewhere for a cause.
Answer:. A novel fungal infection could spread to colonies and cause dramatic population crashes, as seen in the comparative study
Explanation:
fungal diseases of wildlife, amphibian chytridiomycosis and bat white-nose syndrome are diseases in bat that have emerged rapidly and unexpectedly over the past several decades.
These diseases have lead to unprecedented local and global decrease in population of amphibian and bat species the infection colonize their territory and pose serious threats to biodiversity and ecosystem stability due to loss of many of them.
Help!! ASAPP!! It’s about the journey of parts of the blood
Answer:
Explanation: the blood can flow through vesals theres a white vesal but you have at least 3 blood vesals