Darwin's observations of fossils and landscape changes provided evidence supporting Lyell's theory of an ancient Earth shaped by gradual geological processes, thereby giving credence to the sufficient time needed for evolution by natural selection.
Explanation:Charles Darwin's observations during his voyage on the HMS Beagle provided support for Charles Lyell's theory of an ancient Earth undergoing continual geologic change. Lyell proposed that geological change occurred gradually over long periods of time through processes still operating today, as opposed to sudden, catastrophic events. In light of Lyell's concepts, Darwin's discovery of sea life fossils high in the mountains indicated that the Earth's landscape had been reshaped over millions of years, which was compatible with his theory of evolution through natural selection. This slow and continuous change in geology suggested by Lyell allowed Darwin to consider that similarly gradual biological processes could lead to the evolution of species.
Darwin's reasoning, influenced by Lyell, was threefold: he recognized that species could change over time; he acknowledged the ancient Earth allowing sufficient time for evolution, given the diversity of life; and he saw the implication of a 'struggle for existence' from population pressures. Lyell's ideas, alongside the likes of Lamarck and Malthus, provided key frameworks for Darwin to propel his own evolutionary theories forward.
Darwin's observations of fossils, geological formations, and coral reefs supported Lyell's theory of gradual, uniformitarian geological change over immense periods.
Here are a few key points on how Darwin's observations supported Lyell's theory:
1. Geological Formations:
Darwin observed various geological formations during his voyage, such as sedimentary rocks, volcanic islands, and coral atolls. These formations suggested to him that the Earth had undergone extensive changes over vast stretches of time rather than through sudden cataclysmic events.2. Fossils and Succession:
Darwin collected numerous fossils, particularly in South America, which indicated a sequential order of species over time. This supported Lyell's idea that current geological processes, such as sedimentation and erosion, have been acting consistently and gradually over millions of years, leading to the deposition and preservation of fossils in layers.3. Coral Reefs:
Darwin's study of coral reefs, especially the subsidence theory he proposed to explain their formation, reflected his understanding of gradual geological processes shaping the Earth's surface. This fit well with Lyell's perspective that geological changes are continuous and occur at a steady pace.4. Volcanic Activity:
Witnessing volcanic eruptions and studying the geological impact of volcanic islands like the Galápagos further reinforced Darwin's belief in gradual change over time. It aligned with Lyell's argument that volcanic activity, though episodic and dramatic in appearance, contributes to long-term geological evolution when considered over vast time spans.List and describe the four parts of a hen eggs. Where is the fat located in an egg?
A hen's egg consists of the shell, egg white or albumen, yolk, and chalaza, with the yolk containing most of the egg's fat.
Explanation:There are four main parts to a hen's egg:
The shell provides protection and is mostly made of calcium carbonate.The egg white, or albumen, contains water and proteins and serves to protect the yolk and provide additional nutrients.The yolk contains the majority of the egg's fat and is rich in proteins, fat-soluble vitamins, and essential fatty acids.The chalaza, which are cord-like structures that hold the yolk in the center of the egg white.The majority of the fat in an egg is located in the yolk.
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Viruses, although not considered to be alive, attack host cells and cause disease. The attack of a host cell is necessary for the
virus to survive for all of the reasons listed EXCEPT one. That is
they cannot synthesize proteins because they lack ribosomes and must use
the ribosomes of their host cells to translate viral messenger RNA into new Eminate
proteins
they cannot produce or store energy in the form of ATP and have to get
their energy from the host cell
they parasitize the host cell for basic molecules like amino acids,
nucleotides, and lipids,
they lack DNA/RNA so they must use the DNA of the host cell
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Answer:
The correct answer is : They lack DNA/RNA so they must use the DNA of the host cell.
Explanation:
In general, Viruses are composed of two major parts, a genetic material - DNA or RNA (depending upon the type of virus) and a capsid protein coat that encloses and protects the genetic material.Without a genetic material no matter can be considered as living as there will be no multiplication and replication possible.Viruses need the host for its metabolism, replication and multiplication process.After infection, they hijack the cells protein-synthesising machinery, the ribosomes, and utilise the host cell's energy (ATP) for synthesising their own proteins encoded in their genetic material.They utilise the basic components of the host cell like amino acids, nucleotides and lipids for synthesising their own proteins, replicating and producing multiple copies of their genetic material and also producing their coat proteins and lipids.This way the infection-causing virus produces multiple virion particles that exit the infected host in search for new host and repeating this life-cycle.polysaccharides such as starch, cellulose and glycogen are all composed of?
sucrose
glucose
fructose
Answer:
Poly-saccharines such as starch, cellulose and glycogen are all composed of glucose.
Explanation:
Polysaccharides are made of simple sugars like glucose called Monosaccharide’s . The smaller sugar are binded together by glycosidic bonds with the help of special enzymes creating a polysaccharides which is also called as glycan. Starch is polysaccharides formed by connecting glucose monomers of glucose together and is prepared from the excess of glucose produced in green plants during photosynthesis process.
Cellulose is the common materials that line along the cell wall of the pant which comprises of more than 3000 glucose units. The glycogen is the predominant form storage of glucose and carbohydrates in animals and humans. The glycogen is formed from the glucose in the food that the humans and animals consume.
Which is an example of a scientific hypothesis?
Answer:
When you have "if" and "then" in the assumptions
Explanation:
example: "If I give a plant an unlimited amount of sunlight, then the plant will grow to its largest possible size."
A good scientific hypothesis gives a relationship between the variables. An example will be "a certain type of mango has a gene for orange pigment, that mango will be orange coloured". This is then proved by experiments.
What is a scientific hypothesis?A defined idea whose validity or applicability can be tested using defined scientific experiments is called a scientific hypothesis. The scientific hypothesis has always undergone several processes of test and evaluation. It is always presented in such a way that it can be proven to be wrong. That means it must be falsifiable.
Science is a continuous process of using data to understand the various phenomena of the world. Nothing in the world of science can be considered absolute.
A scientific hypothesis is just a carefully worded statement of an idea that has to then undergo various experiments, and tests and face scientific argumentation in order to be proven valid.
Therefore, a good scientific hypothesis example will be "a certain type of mango has a gene for orange pigment, that mango will be orange coloured".
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For an offspring to what a recessive trait, both parents must have at least one what allele in their genotype
Answer:
For an offspring to have a recessive trait, both parents must have at least one recessive allele in their genotype
Explanation:
When an organism contains a pair of dissimilar alleles for a given trait it is said to be heterozygous. A heterozygous state contains one dominant allele and a recessive allele. When two parents are heterozygous, the offspring will have a recessive trait. For example a cross between heterozygous tall plants.
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Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species. Match each field of study to its description. embryology developmental biology molecular biology comparative anatomy the study of the anatomy of an organism to explain evolutionary similarity arrowRight the study of similarities in embryos of organisms to find common connections arrowRight the analysis and comparison of DNA to better understand relationships between species arrowRight the study of life cycles of organisms to find common stages arrowRight
Answer:
the study of the anatomy of an organism
to explain evolutionary similarity- comparative anatomy
the study of similarities in embryos of
organisms to find common connections- embryology
the analysis and comparison of DNA to better
understand relationships between species- molecular biology
the study of life cycles of organisms to find
common stages- developmental biology
Explanation:
I got it right on the test :)
Advances in technology have revolutionized the study of evolutionary relationships between species by facilitating various scientific disciplines. Comparative anatomy involves scrutinizing the anatomical structures of organisms to decipher evolutionary connections based on shared features.
Embryology explores the developmental similarities among embryos of different species to unveil ancestral relationships and common origins. Molecular biology employs DNA analysis and comparison to unveil genetic similarities, enabling researchers to delineate intricate evolutionary lineages. Lastly, developmental biology delves into the life cycles of organisms, seeking common stages across species that offer insights into evolutionary patterns.
The correct match for each field of study to its description:
Comparative Anatomy: the study of the anatomy of an organism to explain evolutionary similarity
Embryology: the study of similarities in embryos of organisms to find common connections
Molecular Biology: the analysis and comparison of DNA to better understand relationships between species
Developmental Biology: the study of life cycles of organisms to find common stages.
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Which region in the United States has the fewest thunderstorms per year
Answer: The West coast region has the fewest thunderstorms per year
Explanation: Oregon, Washington, California, Alaska and Hawaii are all examples of states in the west coast region of the United States.
The west coast region having the fewest thunderstorms is due to two main factors which are; coldness of the pacific ocean and the dryness of air in the region (Low humidity). These two conditions doesn't give room for the formation of any thunderstorm activity.
The Pacific Coast of the Pacific Northwest in the United States experiences the fewest thunderstorms per year due to its stable marine environment and the rain shadow effect created by mountain ranges.
Explanation:The region in the United States with the fewest thunderstorms per year is the Pacific Coast of the Pacific Northwest. This area generally experiences less thunderstorm activity due to its proximity to the cool waters of the Pacific Ocean and the stabilizing influence of the marine environment. While the western United States experiences a rain shadow effect due to the presence of mountain ranges, which causes arid and semi-arid lands to the east of the mountains, it is the Pacific Coast itself that is known for milder weather and less frequent thunderstorm events. Of note, areas like the Great Basin and regions east of the Sierra Nevada are also among those with less frequent thunderstorm activity due to their geographic characteristics and prevailing climatic patterns.
The number of covalent bonds that an atom tends to form is equal to:
A: the number of valence electrons.
B: the number of unbalanced neutrons.
C: the number of unpaired electrons.
D: the atomic number.
E: the number of nearby atoms.
Number of covalent bonds by an atom is equal to number of unpaired electrons.
Explanation:Valency of an atom is defined as the combining capacity of an atom. Valence electrons are defined as the number of electrons in the outermost shell of an atom.
Now for an atom, when more than one electrons are present, then they often forms a pair. Like for example, if there are 7 valence electrons, 6 get as pairs and only one electron is unpaired. So this is why the halogens like fluorine, chlorine etc has the Valency of 1. For oxygen, 4 valence electrons become paired. And rest 2 electrons form 2 covalent bonds.
What is the 5th moon phase
Answer:
The waxing gibbous phase exist between the first quarter and full moon phases
Explanation:
reasons why teachers should take me on a feild trip (many reasons)
Answer:
There are many reasons why teachers should take children on a field trip. Some of them are:
1) The children tend to learn more form field trips.
2) Planning to visit cultural areas allow students to learn and visualize the cultural heritage of a city.
3) The children are better able to communicate with one another.
4) The teachers can get a better understanding about any child from a field trip.
5) Once in a while, some fun must be added to the schedule of the children and what better way other than a field trip.
Which of the following observations is true concerning the effect of body mass on demographics?
a. The higher the body mass, the higher the population density
b. The lower the body mass, the higher the population density
c. The higher the body mass, the higher the population size
d. The lower the body mass, the higher the population size
Answer: D
Explanation: If the body mass is low that means there will be higher the population size. It's the law of nature the species which have lower body mass are more in number and vice-versa. So the answer is the Delta option.
Final answer:
The correct answer is b. The lower the body mass, the higher the population density, due to smaller organisms' lower per-individual resource needs and ability to live closer together.
Explanation:
The question concerns the relationship between body mass and population demographics, specifically population density. Based on the information provided, which repeatedly indicates that population density typically decreases with increasing body mass, the correct answer is b. The lower the body mass, the higher the population density. This phenomenon occurs because smaller organisms often require fewer resources per individual and can live in closer proximity to one another than larger organisms. Thus, areas can support a higher number of smaller individuals than larger ones, leading to a higher population density among species with smaller body mass. Examples include how insects can have very high population densities in a given area compared to larger mammals.
Energy constantly flows into the biosphere as sunlight.
This energy flows through organisms and the environment and eventually flows out of the biosphere as _____.
nitrogen
water
heat
oxygen
A doctor diagnoses a patients liver cells as being 3 times their normal size. Describe 2 ways this would affect the function of these cells
Answer:
Enlarge liver cells may leads to a disease called hepatomegaly, is a condition where the size of liver is increased. Some times, spleen may also enlarge along with liver cells.
Explanation:
Enlarge liver can cause several symptoms like-
DiarrheaBleeding gum Disbalance in hunger.VomitingNauseaAffects the digestive tractAbnormal swellingSwollen abdomenFeverHallucinationsThis disease is mainly caused by excessive consumption of alcohol, congestive heart fatigue,liver cancer, fat in liver,disease cause by glycogen storage.
In a family with two brothers, one brother's thumbs are straight while the
other's thumbs are bent. The most likely reason for this difference is that the
brothers:
Answer:
The brothers have different alleles.
Explanation:
do guys produce sperm better in warm or cold conditions
Answer:
Apparently, cold conditions.
Explanation:
I was curious so I went and googled it and found the following: "Sperm thrive in lower temperatures. Ideally, they should only be exposed to 4° F below body temp (roughly 94°) or cooler. This means that even small sources of heat can start to add up and damage your sperm count." Quick google search would do you the same but for the sake of it, the answer is cold conditions
Answer:
warm.
because cremaster have becomes dialleted.
what caused the population of eagles to drop dramatically
Answer:
Bald eagle populations declined dramatically in the last century, attributed mostly to the accumulation of the pesticide DDT in fish, The pesticides gradually poisoned females, causing them to produce thinly-shelled eggs that broke easily, preventing the embryos from growing.
Over time, animals have developed adaptations to help them thrive in the environment in which they live. Read the description below and based on
the adaptations determine the biome for which the organisms are adapted.
Description 1:Some of the plants that live in this biome have drip tips to help shed extra water. To provide extra support, some plants have extra thick roots
Buttress and stilt roots are common. Finally, this this biome you are likely to find a large array of epiphytes.
Description 2: Many of the mammals that live in this biomes have furto protect them from insects and keep them warm. Reptiles and insects that live here tend
to have bright colors. While others are famous for their ability to camouflage
Answer:
Description 1: Tropical Rain Forest:
The plants of this biome have large sized leaves to enhance the process of photosynthesis. Drip tip of leaves allows the water to drip off easily for the plants and trees of this biome. Epiphytes are known to grow on top of trees in this biome.
Description No 2: Taiga
The animals of this biome have the ability to camouflage. Mammals have fur to prevent heat loss.
Question 3 :
What is the term that correctly identifies this part of a dermal (skin) cell?
Answer and Explanation:
What is the term that correctly identifies this part of a dermal (skin) cell?
cytoplasm. The interior of a cell consists of a jelly-like substance called cytoplasm. It is here that most of the chemical reactions essential for life takes place. Within the cytoplasm are scattered several organelles.
The correct term is D. cytoplasm because it includes all the cellular material within the cell membrane, apart from the nucleus, which applies to dermal skin cells.
To determine which term correctly identifies a part of a dermal skin cell, let's consider each option:
Chromatin: This term refers to the material that makes up chromosomes, which contain the genetic code within the cell's nucleus. Since the nucleus is a part of many cells, this option is not specific to dermal cells.Cytoskeleton: This refers to the network of protein filaments that provides the cell with structure and support. While important, it is not unique to dermal skin cells.Center Vacuole: This is typically a large vacuole found in plant cells that stores water, nutrients, and waste products. Dermal skin cells in humans do not have a central vacuole, making this option incorrect.Cytoplasm: This term describes the gel-like substance inside the cell membrane that holds all cellular organelles except the nucleus. It is found in all types of cells, including dermal skin cells.Therefore, the correct answer is D. Cytoplasm because it encompasses all the cellular material excluding the nucleus within the dermal skin cell, providing a matrix where all cellular processes occur.
Complete question:
Which term correctly identifies this part of dermal skin cell
A. Chromatin
B. Cytoskeleton
C. Center Vacuole
D. Cytoplasm
3. Which is not a particle within an atom?
Answer:
an ion
Ion is smaller then all them and doesn't belong here.
The ultimate reason governments have made stricter laws concerning refuse disposal is that
O refuse attracts vermin
refuse is unsightly
refuse breeds disease
refuse smells terrible
Answer:
The correct option is C) refuse breeds disease
Explanation:
Refuse Disposal can be described as the act of disposing or discarding waste or recycling the waste. If the waste is not discarded properly and remains on streets or in lakes, then it stimulates the growth of infectious microorganisms. A wide number of diseases can be caused due to these infectious agents. Hence, the government of a country tends to make strict loss concerning refuse disposals. These laws maintain cleanliness and proper waste disposal in the country.
refuse breeds disease
Explanation:
Look at the diagram of the cell membrane. Would a cell membrane be able to function in the same
way if it was composed of saturated fatty acids? Explain. (4 points)
Explanation:
The membrane would be too rigid. The unsaturated fatty acids allow the membrane components to maintain their fluid mosaic structure-the components slip past each other freely and adjust to changes in osmotic pressure within the cell.
Further Explanation:
Lipids consist of fatty acids forming the hydrophobic tail and glycerol forming the hydrophilic head; glycerol is a 3-carbon alcohol that is water-soluble, while the fatty acid tail is a long chain hydrocarbon (carbon-backed hydrogen) of up to 36 carbohydrates.
Their polarity or arrangement can confer hydrophilic and hydrophobic properties on these non-polar macromolecules. Small water molecules can pass through the phospholipid bilayer through diffusion into the extracellular fluid or cytoplasm as a semi-permeable membrane, both of which are hydrophilic and contain large concentrations of polar water molecules or other water soluble compounds. The heads of the bilayer are hydrophilic the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water to diffuse across the membrane along the concentration gradient.
Other components include:
Cholesterol: The comparatively rigid cholesterol anchors other molecules attached to the membrane, maintains membrane stability or structural integrity, and helps to separate some lipids, helping with membrane fluidity at low ambient temperatures. Transmembrane proteins are embedded from the extracellular fluid into the cytoplasm within the membrane, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) that function as cell surface marker.Learn more about membrane components at https://brainly.com/question/1971706
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How do glycoproteins help the mucus to trap substances
Answer:
The sugar in glycoprotein mix with water in order to form a "smooth mucus." This mucus is responsible for trapping the substances in order to protect the body.
Explanation:
"Glycoprotein" was named according to its composition because it is a simple protein consisting of simple sugar. It can be found in cell's membrane, thus it is directly related to the organs in the body.
Glycoproteins mainly function in the body's "immunology" and "protection." When it comes to immunology, glycoproteins assist the body in blood clot formation. When it comes to protection, they provide a "smooth mucus" that protects the cell linings from agents (e.g. bacteria or harsh acids) such as those in the lungs, stomach and small intestines.
Why is Big Bang a theory and not a fact ?
What information on a pedigree can tell you whether a gene is a autosome or a sex chromosome ???
Answer:
What information on a pedigree can tell you whether a gene is on a autosome or not a sex chromosome? If in a pedigree, the occurrence of the disorder is 50/50 between females and males, then it shows that it is autosomal. If the disorder is mostly shown in males then it is a sex-linked trait.
Explanation:
Question 2 of 10
2 Points
What is it called when scientists explore the world around them?
Answer:
Scientific method I'm pretty sure
Explanation:
A scientific method is a process which is used by the researchers or scientists so as to explore or study the world around them. It can be used to check whether a scientific statement or hypothesis is correct.
~Google~
Answer: The scientific method
Explanation:The scientific method can be used to check whether a scientific statement or hypothesis is correct.
which did scientists know about molecular genetics in the early 1900s?
Answer:
Chromosomes, Mutation, and the Birth of Modern Genetics: Thomas Hunt Morgan. In 1900 several scientists across Europe came to the same realization about heredity that Mendel had some 40 years before. But they arrived at the discovery from a very different direction.
Explanation:
Answer:
A. Chromosomes carry genetic information.
Explanation:
Evolution over the millennia has resulted in the great variety of life on Earth. Yet scientists hypothesize all life has descended from an ancestral one-celled organism. What provides the most compelling evidence from this statement?
The genetic code shared across all known organisms, the fossil record showing a progression from simple to complex life, and comparative anatomy and embryology pointing to a common ancestry all provide compelling evidence for evolution from a single-celled organism.
Explanation:One of the most compelling pieces of evidence for the hypothesis that all life on Earth has descended from an ancestral one-celled organism is the genetic code. All known living organisms share the same basic genetic materials - DNA or RNA - which encode the instructions for their structure and function. This commonality suggests that all life forms evolved from a shared ancestor that had this genetic system.
Another form of evidence comes from the fossil record, which shows a gradual transition from simple to complex organisms, tracing back the lineage of various species to their simpler ancestors. Moreover, advancements in technology are giving scientists the ability to study previously unknown prokaryotes, which dominate life on Earth and offer insights into the early forms of life.
Additionally, comparative anatomy and embryology show similarities among different organisms, suggesting a common origin. For instance, the presence of analogous structures like the bones in the wings of bats and the arms of humans indicate a divergent evolutionary path from a common forelimb structure. The process of evolution by natural selection, or survival of the fittest, explains how simple life forms diversified into the vast array of species we see today.
Why do you think the public was more accepting of trans fat than of animal fats ?
Trans fat is cheap and can withstand multiple heating without breaking down.
Explanation:
Trans fat is made by adding hydrogen to unsaturated fats, that is hydrogen is introduced to vegetable oils .Big oil companies also spread that it is easily digestible, can be used. multiple times, etc Trans fat was cheap compared to animal fats in the market .Using trans fat instead of butter made a lot of sense to them.
the nature versus nurture question asks:
The nature versus nurture question is a topic that explores the extent to which human behavior is influenced by genetics or environmental factors. Supporters of nature argue for innate traits, while supporters of nurture emphasize socialization and experiences. The question prompts consideration of the complex interaction between genes and the environment.
Explanation:The nature versus nurture question is a topic within the field of Social Studies that explores the extent to which human behavior is influenced by genetics (nature) or by environmental factors (nurture). Supporters of the nature side argue that certain traits are innate and biologically determined, while supporters of the nurture side emphasize the role of socialization and experiences in shaping behavior.
Example: In the study of aggression, the nature perspective would suggest that some individuals may have a genetic predisposition towards violent behavior, while the nurture perspective would focus on how environmental factors such as upbringing, peer influence, and exposure to violence may contribute to aggressive tendencies.
Ultimately, the nature versus nurture question encourages us to consider the complex interaction between our genes and the environment, and how both factors contribute to our development and behavior.
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What is the relationship between changes in air pressure and wind speeds?
A: When a high- and a low-pressure air mass are far apart, air moves quickly from low to high pressure.
B: When a high- and a low-pressure air mass are far apart, air moves quickly from high to low pressure.
C: When a high- and a low-pressure air mass are close together, air moves slowly from high to low pressure.
D: When a high- and a low-pressure air mass are far apart, air moves slowly from high to low pressure.
Complete Question:
Which of these best describes the relationship between changes in air pressure and wind speeds?
A: When a high- and a low-pressure air mass are far apart, air moves quickly from low to high pressure.
B: When a high- and a low-pressure air mass are far apart, air moves quickly from high to low pressure.
C: When a high- and a low-pressure air mass are close together, air moves slowly from high to low pressure.
D: When a high- and a low-pressure air mass are far apart, air moves slowly from high to low pressure.
E: The greater the difference in pressure, the faster the winds.
Answer: is Option E and Option D.
D: When a high and a low pressure air mass are far apart, air moves slowly from high to low pressure.
E: The greater the difference in pressure, the faster the winds.
The rules in the movement of the air masses is quite easy and simple. The air masses with high pressure always move towards the air masses with lower pressure. The wind speed is lower when the difference in the air pressure is very small. Similarly the wind is speed is faster when the difference in the air pressure is larger.
When air pressures are far apart with different pressures (low and high), there will be no movement of air, or a gradual slow movement occur resulting in slower wind speed.
Answer:
DD-D-D-D-DD-D-D-
Explanation:
IT IS D