Answers
Answer:
Sedimentary rocks contain rounded grains in layers. The oldest layers are at the bottom and the youngest layers are at the top. Sedimentary rocks may contain fossils of animals and plants trapped in the sediments as the rock was formed.
Explanation:
Sedimentary rocks are formed by the accumulation and lithification of sediment, which can include sand, mud, and organic matter.
What are sedimentary rocks?Sedimentary rocks are a type of rock that is formed by the accumulation and lithification of sediment, such as sand, mud, and organic matter. They often have layers, or strata, and may contain fossils and other clues about the environment in which they were formed.
They typically have the following characteristics:
Stratification: Sedimentary rocks often have distinct layers, or strata, which can indicate the environment in which they were formed and the sequence of events that occurred during their formation.Clasts: Many sedimentary rocks contain clasts, which are pieces of other rocks or minerals that have been incorporated into the sediment. These clasts can provide information about the source materials from which the sedimentary rock was formed.
Fossils: Sedimentary rocks are often rich in fossils, which are the remains or traces of plants or animals that were preserved in the sediment. Fossils can provide information about the ancient organisms that lived in the area where the sedimentary rock formed.
Cementation: Most sedimentary rocks are held together by some type of cement, which can be a mineral such as calcite or quartz, or a chemical bond. The type of cement can affect the physical and chemical properties of the sedimentary rock.
Porosity and permeability: Many sedimentary rocks are porous and permeable, which means they have spaces between the grains and can allow fluids to pass through them. The porosity and permeability of a sedimentary rock can depend on the size, shape, and arrangement of the grains, as well as the type of cement present.
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Related Questions
Plants can reproduce both sexually and asexually. What are some examples of sexual reproduction in plants? Select ALL that apply. Responses
Answers
Sexual reproduction in plants involves the fusion of male and female gametes to produce offspring with genetic diversity.
Mechanisms that facilitate sexual reproduction in plants are examples:
1)Pollination and Fertilization: Many plants rely on pollinators, such as bees, butterflies, or birds, to transfer pollen from the male reproductive structures (anthers) to the female reproductive structures (stigma) of flowers.
This process enables the fusion of sperm cells within the pollen with egg cells in the ovules, leading to fertilization.
Examples include flowering plants like roses, sunflowers, and apple trees.
2)Seed Production: After fertilization, the ovule develops into a seed. Seeds contain an embryo, formed by the fertilized egg, enclosed within a protective seed coat.
The mature seeds can disperse and germinate to give rise to new plants.
Various plant groups, including angiosperms (flowering plants) and gymnosperms (conifers and cycads), reproduce sexually through seed production.
3)Alternation of Generations: In plants with a complex life cycle, such as ferns, mosses, and liverworts, sexual reproduction involves an alternation between two distinct generations: the gametophyte and the sporophyte.
The gametophyte generation produces gametes (sperm and eggs) through specialized structures, while the fusion of gametes gives rise to the sporophyte generation, which produces spores.
4)Self-fertilization: Some plants have the ability to self-fertilize, where the pollen from the anther of a flower is transferred to the stigma of the same flower or another flower on the same plant.
This allows for sexual reproduction without the need for external pollinators. Self-fertilization can be seen in plants like tomatoes, peas, and certain grass species.
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The Human population is currently:
A: increasing at an increasing rate
B:increasing at a steady rate
C: increasing at a slowing rate
D: Decreasing
Answers
Answer:
A is the best answer for now I think. Because the world population grew by 100 million over the past year
7. Are there any mammalian cells that would be a good source for dividing cells? What types of cells
would most likely NOT have cells undergoing division?
Vie
Answers
Answer:
good luck with your new job and your job is to get the best 3rd grade teacher
4. The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell would be: which option is correct a) 1 mole of ATP b) 2 moles of ATP c) 3 moles of ATP d) 4 moles of ATP e) 6 moles of ATP
Answers
The ATP yield from 2 moles of mitochondrial NADH under aerobic conditions in a eukaryotic cell is approximately 4 moles of ATP.
During oxidative phosphorylation, each mole of NADH can generate around 2.5 to 3 moles of ATP. Therefore, for 2 moles of NADH, the total ATP production would be in the range of 4 to 6 moles of ATP. While the more precise estimate falls within the 4 to 6 moles range, the closest option provided is 4 moles of ATP. It is important to note that the exact ATP yield can vary depending on factors such as the efficiency of the electron transport chain and the specific conditions within the cell.Since there are 2 moles of mitochondrial NADH, the total ATP yield would be around 4 to 6 moles of ATP. However, the most accurate option among the given choices is 4 moles of ATP.
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In what ways is the structure of mRNA similar to the DNA
Answers
Answer:
Explanation:
1) Both have pentose sugar (sugar is slightly different in DNA being a deoxyribose but still a pentose sugar)
2) Both mRNA and DNA have sugar and phosphate backbones, and nitrogenous bases.
3) mRNA and DNA have Adenine, Guanine, and Cytosine as similar nitrogenous bases.
4) Both are crucial in central dogma of life (this is the process of DNA-->mRNA--> protein) or you could say both are crucial to produce an enzyme or protein...
the list goes on and on
"Pitcher plants are carnivorous." Is it true or false?
Answers
Yes, it is true that pitcher plants are carnivorous. Pitcher plants are a type of carnivorous plant that have evolved to obtain essential nutrients from insects and other small organisms.
The answer in True.
These plants typically grow in nutrient-poor soil conditions and have adapted to capture and digest insects as a way to supplement their nutrient intake.
The main feature of pitcher plants is their modified leaves, which form a pitcher-like structure. This structure is filled with a liquid that contains enzymes and other substances that can break down the captured prey. The rim of the pitcher, called the peristome, is slippery, causing insects to fall into the trap. Once trapped, the insects are digested, and the nutrients are absorbed by the plant.
There are several types of pitcher plants, including the North American Sarracenia, the tropical Nepenthes, and the Cephalotus from Australia. Each species has unique adaptations and trapping mechanisms that help them capture different types of prey.
In summary, pitcher plants are indeed carnivorous, as they have adapted to obtain essential nutrients from insects and other small organisms. They do so through their unique pitcher-like structures, which are designed to trap and digest prey. This adaptation allows them to thrive in nutrient-poor soil conditions.
The answer in True.
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What do a Salamander and a Tuna have in common? *
Answers
Answer:
DNA structure
Explanation:
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make an informational sign to display at the nasa educational exhibt explaining punnett squares and probabilty to the public your sign should show the genotypes and phenotypes of the parents it should also explain why this pair was selected also be sure to include the appriote punnett squares to show the predictions for the possible offspring
Answers
Welcome to the NASA Educational Exhibit! Today we'll be discussing Punnett squares and probability.
What is Genetics ?Genetics is the study of how traits are passed from parents to their offspring. Punnett squares are used to predict the probability of inheriting certain traits. For this exhibit, we've selected a pair of parents, one with straight hair and one with curly hair.
The genotypes of the parents are:
Straight hair parent: SS (homozygous dominant)
Curly hair parent: ss (homozygous recessive)
The phenotype of the parents are:
Straight hair parent: Straight hair
Curly hair parent: Curly hair
We selected this pair because they both have very different hair types, and hair type is a trait that is easy to see and identify.
Let's use a Punnett square to predict the possible offspring of these parents. The Punnett square below shows the possible combinations of alleles that could result from their mating .
As you can see from the Punnett square, there is a 50% chance that the offspring will have straight hair (genotype: Ss), and a 50% chance that the offspring will have curly hair (genotype: ss).
In summary, Punnett squares can help us predict the probability of inheriting certain traits. By understanding genetics and probability, we can learn more about the world around us and make informed decisions about breeding and genetic disorders.
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_____ is work done to keep equipment in good working order.
Answers
This question is incomplete; here is the complete question:
_____ is work done to keep equipment in good working order.
A. Defragmentation
B. Preventive maintenance
C. Virus protection
D. A maintenance schedule
The correct answer is B. Preventive maintenance
Explanation:
Maintenance refers to the processes done on machinery or equipment to preserve its proper functioning. Moreover, this maintenance is preventive if it is done to prevent equipment from breaking down or having any malfunctioning. Besides this, preventive maintenance is globally recommended because in this way equipment used at home or in business works properly. According to this, the correct answer is preventive maintenance.
In guinea pigs, rough coat (R) is dominant to smooth coat (r). What is the expected percentage of smooth-coated guinea
pigs when a heterozygous rough-coated guinea pig is crossed with a smooth-coated guinea pig?
A. 0%
B. 25%
C. 50%
D. 75%
Answers
So the ans is C
which of the following is not a factor that contributes to variation in a population? natural selection changes in chromosome number or structure independent assortment in meiosis
Answers
Among the given options, Natural selection is not a factor that contributes to variation in a population.
Genetic diversity among members of the same species refers to naturally occurring genetic variances. A population can adapt to changing environmental conditions and survive thanks to this variety. Thus, genetic variety is frequently viewed as a benefit since it serves as a kind of contingency planning.
Because one organism chooses to mate with another based on particular qualities, nonrandom mating can occasionally happen when a population interbreeds. In this instance, people in the population make particular behavioral decisions, and these decisions influence the genetic patterns that manifest in succeeding generations.
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Explain how carbon, hydrogen and oxygen from sugars combine to make amino acids/larger carbon-based molecules. Use word metabolism in your explanation
Answers
Answer:
Explanation:
when water and carbon dioxide joined together they form food and oxygen this food is sugar if this sugar goes to our body on that time it convert into glucose. when glucose carried by blood the mitochondria in the cell respire and form acid these acid is amino acid. when these is happened our body produce a heat.
Describe the role of GA in a-amylase production and in germination. Provide evidence for your claim
Answers
Gibberellic acid (GA) plays a crucial role in a-amylase production and germination. GA stimulates the synthesis and release of a-amylase enzymes, which hydrolyze starch into sugars during germination. Experimental studies have demonstrated that the application of GA accelerates a-amylase production and enhances germination in various plant species
In terms of a-amylase production, GA stimulates the synthesis and release of this enzyme. a-amylase is responsible for breaking down starch into simpler sugars, which are then utilized by the plant for growth and development.
Studies have shown that applying GA to plant tissues or seeds results in an increased production of a-amylase, facilitating the conversion of stored starch into energy-rich sugars.
Regarding germination, GA is involved in breaking seed dormancy and promoting the growth of the embryonic plant.
It stimulates the production of hydrolytic enzymes like a-amylase, which enable the hydrolysis of starch reserves in the endosperm, providing the energy needed for germination and seedling establishment.
Additionally, GA helps in cell elongation and division, promoting the growth of the embryo and the emergence of the radicle.
Evidence for GA's role in both processes includes studies where the exogenous application of GA to seeds or plant tissues has been shown to enhance a-amylase production and promote germination.
Conversely, inhibiting GA synthesis or action results in reduced a-amylase activity and impaired germination. These findings support the critical involvement of GA in both a-amylase production and germination processes in plants.
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#1 The subatomic particle that is neutral is the _____.
#2 A (An) _____ is a negatively charged particle
#3 According to modern atomic theory, _____ can't move from one energy
level to another.
Answers
The subatomic particle that is neutral is the Neutron. (An) electron is a negatively charged particle
According to modern atomic theory, the proton can't move from one energy level to another
With the work of the English chemist John Dalton, the current atomic theory, which has continuously undergone refining, started to blossom at the beginning of the 19th century.
The modern atomic theory holds that atoms are no longer indestructible and now contain electrons, protons, neutrons, and other sub-particles. Isotopes are variations of an element's atoms that can exist.
The concepts of atoms and how they create matter are established by current atomic theory. Atoms are composed of negatively charged electrons revolving around a core nucleus made up of electrically neutral neutrons and more massive positively charged protons.
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In asexual reproduction, there is only one
Answers
ASAP PLS HELP!!! WILL MARK AS BRAINLIEST + 50 points!
I need this chart filled out, attached the chart and my species i created.
PLS PLS PLS HELP!!! ASAP
Answers
The three traits and the possible phenotypes are:
eye color; blue, brownhair color; blonde, red, blackheight; tall, average, shortWhat are traits and phenotypes?An observable characteristic is simply referred to as a phenotype.
The term "pheno" and "phenomenon" share a common root, and "pheno" simply means "observe".
It can therefore refer to anything from a common trait like height or hair color, to the presence or absence of a disease. It is also an observable type of an organism.
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Why might farmers and herders have selectively bred their animals and plants?
Answers
Answer:
Farmers and herders can derive a surplus of animals and plants with desireable traits. (ex: larger crops, bigger animals, sweeter fruits etc.)
Explanation:
By selectively breeding animals (breeding those with desirable traits), farmers increased the size and productivity of their livestock. Same thing goes for plants. Farmers can selectively breed them so they can become more favorable for their consumers.
Hope that helps!
State one substance that leaves the blood as it flows through the tissues of the small intestine.
Answers
Answer:
Superior mesenteric artery.
The primary source of energy for the body is a form of sugar called glucose. It travels to cells all throughout the body after being absorbed into circulation from the small intestine.
Other chemicals that enter the circulation through the small intestine include the following:
Proteins' building components are amino acids.
The lipids' building components are fatty acids.
minerals and vitamins
Water
In an adult, the small intestine is a muscular tube that is roughly 20 feet long. It is situated in the belly, above the large intestine, and below the stomach. The bulk of digestion and nutritional absorption from meals occurs in the small intestine.
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What is photosystem 1 and photosystem 2 and what do they do? What are the steps ?
Answers
P I and PII are proteic compounds present in the thylakoid membrane that contain about 300 chlorophyll molecules each.
Step IFirst of all light with a wavelength of 690nm is absorbed by P II. The light excites an electron that leads to the photolysis of water(H2O--->2H+ +2e- + 1/2O2). The two electrons released go into the electron transport chain. The second compound in electron transport chain is plastoquinone that is reduced when it accepts electrons then oxidised when it loses them to P I. The next two compounds are cytocromes that make hydrogen protons go inside the thylakoid when they recieve the electrons.(I will mention what happens to the H+ in the second step). The next compound in the electron transport chain is a compound that contains Fe and S. The electrons finally reach the last step: Reduction of NADP+ to NADPH+H+.
Step IIIn the second step is ATP synthesis. Hydrogen protons accumulate inside the thylakoid membrane. An electrochemical gradient is formed. The protons can leave the thylakoid according to this gradient through an enzyme.
When the protons flow through , it turns ADP into ATP.
To sumarize: the role of P II is O2 production through photolysis and ATP synthesis(indirectly) The role of P I is NADPH+H+ synthesis.
amino acids tend to be localized either in the interior or on the exterior of a globular protein molecule, depending on their relative affinities for water. for the following pair of amino acids, choose the one that is more likely to be found in the interior of a protein molecule.
Answers
The protein that is most likely to be found in the interior of protein molecules is Alanine and Glycine. Cysteine residues with free sulfhydryl groups tend to be localized on the exterior of a protein molecule because the sulfhydryl group can form hydrogen bonds with water, making it hydrophilic.
What proteins are found in interior and exterior of protein molecules?Alanine and Glycine: Alanine is more likely to be found in the interior of a protein molecule because it is hydrophobic (non-polar), while Glycine is more likely to be found on the exterior of a protein molecule because it is the smallest amino acid and has a low molecular weight, making it more likely to be in contact with water.
Tyrosine and Phenylalanine: Tyrosine is more likely to be found on the exterior of a protein molecule because it contains a hydroxyl (OH) group which makes it hydrophilic, while Phenylalanine is more likely to be found in the interior of a protein molecule because it is hydrophobic (non-polar).
On the other hand, cysteine residues involved in disulfide bonds are more likely to be buried in the interior of the molecule because the disulfide bond stabilizes the protein structure by forming a covalent bond between the two cysteine residues. This covalent bond is not soluble in water and therefore the residues are protected from the hydrophilic environment and are more likely to be found in the interior of the protein molecule.
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The complete question is:
Amino Acid Localization in Proteins. Amino acids tend to be localized either in the interior or on the exterior of a globular protein molecule, depending on their relative affinities for water. (a) For each of the following pairs of amino acids, choose the one that is more likely to be found in the interior of a protein molecule, and explain why: alanine; glycine glutamate; aspartate tyrosine; phenylalanine methionine; cysteine (b) Explain why cysteine residues with free sulfhydryl groups tend to be localized on the exterior of a protein molecule, whereas those involved in disulfide bonds are more likely to be buried in the interior of the molecule.
why should damage be repaired before a cell enters mitosis
Answers
Answer:
Cells do not repair damage to DNA during mitosis because telomeres could fuse together. ... Throughout a cell's life, corrective mechanisms act to repair DNA strand breaks. The exception is during the critical moment of cell division, when chromosomes are most vulnerable.
Explanation:
Explain the importance of the central nervous system in the
human body.
Answers
Answer: it controls intelligence, memory, personality, emotion, speech, and ability to feel and move
Explanation: controls the way your brain and body functions throughout life
sexually produced offspring are indentical to their parent . true or false ?
Answers
Elements which have their outmost layer of electrons filled are elements which are very ___________ in their behavior.
Elements which have their outermost layers incompletely filled are elements which are very ___________ in their behavior.
Answers
Answer:
were - were
Explanation:
Why does almost everything made with water
Answers
Answer:
because water is important for life
Explanation:
Without water no one can survive in this world especially humans and animals they all need water to survive their lives.
18. How many elements do not end with the traditional element
suffix of - "ium"?
?
Answers
Answer:
38
Explanation:
There are 118 elements and 80 end in ium, meaning 38 do not
Do you believe that Andrew joy should have punished the rebel states why or why not
Answers
Answer:
Yes , the death of many inocent souls proclaimed by the confederates we're all pardoned on behalf that they just obey the UNION and obeyed the laws against slavery , In my opinion that is a slap on the wrist. I believe in a life for a life most of these men we're rampant killers and we're pardoned with no 2nd judgement.
Explanation:
For the people that dont know he had demanded strong action against them when the war ended. "The time has come," Johnson had said, "when the American people should understand what crime is. And that it should be punished." ... Johnson declared a pardon for all former confederates who promised to support the Union and obey laws against slavery.
Offer a possible evolutionary explanation for how the bones of animal limbs can have a similar
structure, but very different functions.
Answers
The bones of animal limbs that are similar in structure but have different functions are called homologous structures and are explained through divergent evolution.
What are homologous structures?
Homologous is a word derived from the Greek words - 'Homo' and 'logos' meaning 'same ratio or proportion'. Homologous structures are ones that have similar structures, features, traits, and/or characteristics. In animals, this refers to mostly the body parts such as bones and limb structures.
When it comes to evolutionary biology, homologous structures help map back the ancestors and form possible connections to other animals across species.
When it comes to homologous structures it is referred to as divergent evolution. Divergent evolution involves organisms that seem to have come from the same ancestor but evolved to adapt to their surroundings changing the functions of their similar body structures.
Common examples of homologous structures are the structures of the limbs of humans and a cat.
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Plz help me with these questions
Answers
Answer:
HII BEDCGUITDDF
Explanation:
HIII
Which statement is true?
As evidence changes, scientific theories can also change.
Scientific theories only involve finding evidence to explain phenomena.
Scientific theories describe natural phenomena, whereas scientific laws explain natural phenomena.
If a single study or inference is wrong, a scientific theory can be invalidated.
Answers
The statement that as evidence changes, scientific theories can also change is true. The correct option is A.
What is a scientific theory?A scientific theory is a formalized explanation that accommodates a scientific hypothesis and scientific laws to explain a group of facts or phenomena in the natural world.
The scientific definition of a theory differs from the definition most people use in everyday conversation.
As new evidence and perspectives emerge, accepted theories may be modified or overturned.
Scientists are more likely to accept a new or revised theory if it explains everything the previous theory did and more.
Thus, the correct option is A.
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Answer:
The statement that as evidence changes, scientific theories can also change is true. The correct option is A.
Explanation: