4 Compare the composition of the rock sample with other rock samples of know age
The method below would a scientist most likely use to determine the absolute age of a rock layer is Compare the composition of the rock sample with other rock samples of known age.
What is Petrified fossils?Petrified fossils are formed when minerals replace all or some part of once-living matter.
Petrified fossils result from a process known as permineralization which occurs when ground water solutions containing iron, carbonates, silicates or other minerals seeps through the remains of buried organisms (plants or animals).
When the water evaporates, the minerals remain and replace the organic matter to form a petrified fossil. This method preserves the most detail of an organism because it greatly retains the appearance of organisms.
Thus, option "4" is correct. .Compare the composition of the rock sample with other rock samples of known age.
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Use the table to answer the following question.
Gravity and inertia are the two forces that keep Earth in its orbit as it travels around the Sun. What would happen if the force of inertia disappeared?
A.
Earth would break apart.
B.
Earth would be pulled into the sun.
C.
Earth would leave the solar system.
D.
There would be no changes in Earth's orbital path
Answer:
D.
Explanation:
if the force of inertia disappeared there would be no changes in earth's orbital path.
the reasons is that earth would stop moving as soon as there was no longer any force being applied
What makes a species successful in an ecosystem?
Answer:
Beside the intensive loss of forest cover [2], fragmentation of the pristine remnants further affects species [3] and limits their ability to move into adequate areas. Thus the ability to cope with altered landscapes is crucial for the persistence of a species, especially in the face of climate change.
Which air mass would produce warm, humid weather in the summer?
Answer: maritime tropical air mass
Explanation: The oceanic tropical air mass regularly creates a warm, muggy climate in the mid-year. The air mass begins from over the warm water of the jungles and Gulf of Mexico, where warmth and dampness ordinarily move to the air above from the water beneath.
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Answer:
Typically, the nucleus of a cancer cell is larger and darker than that of a normal cell and its size can vary greatly. Another feature of the nucleus of a cancer cell is that after being stained with certain dyes, it looks darker when seen under a microscope
Explanation:
In contrast to normal cells, cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells, however not all changes cause cancer, they may be a result of it.
3. Synthesize in your own words, explain why scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity Refer to the Case Study.
Explanation:
Scientists give three reasons. First, amphibians are sensitive biological indicators of changes in environmental conditions such as habitat loss, air and water pollution, ultraviolet (UV) radiation, and climate change.Amphibians are sensitive biological indicators of environmental circumstances such as habitat loss, pollution of the air and water, ultraviolet (UV) radiation, and temperature change.
What is biodiversity?The variety and variability of life on Earth is referred to as biodiversity or biological diversity. A measure of variation at the genetic, species, and ecosystem levels is called biodiversity.
Biodiversity refers to the variety of all the diverse species of organisms that dwell on our planet, including the plants, animals, insects, and microorganisms.
Each of these things exists in a delicate balance and coexists with the others in ecosystems that nourish and sustain life on earth.
Amphibians are sensitive biological markers of changes in environmental conditions like temperature, UV radiation, habitat loss, and air and water pollution.
Thus, scientists believe that threats to amphibians present a warning about a number of environmental threats to Earth's biodiversity.
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There is a species of frog on an island that puzzles scientists. The proportion of frogs with no stripes is greater than the proportion of frogs with
stripes. This is puzzling because the unstriped trait is recessive (s), and the striped patterns are due to dominant alleles (S). Also, natural selection
seems to support the striped trait.
How do genetic factors most likely account for the proportion of traits in the frog population?
A. Most of striped frogs and unstriped frogs have the genotype ss.
OB. Most of striped frogs have the genotype SS and the unstriped frogs have the genotype ss.
C. Most of striped frogs have the genotype SS and the unstriped frogs have the genotype Ss.
OD. Most of striped frogs have the genotype Ss and the unstriped frogs have the genotype ss.
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The diving bell spider stores air underwater in a net of silk explain how this could be more advantageous than having gills
Answer:
Explanation:
Using its web as a gill, the diving-bell spider can live underwater with only occasional visits to the surface. The arachnid (Argyroneta aquatica) breathes air from a bubble that it grabs from the surface of water using fine hairs on its abdomen.
Last month, Sarah documented how her city suffered from acid rain. What type of pollution should the people in Sarah’s city try to control?
Answer: I need more information to answer.
Explanation:
25 POINTSSSS!!!!!
In which system of plant do the tissues xylem and phloem work?
In vascular system of plant do the tissues xylem and phloem work
What is the purpose of mitosis for our bodies?
Answer:
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells
Explanation:
What is the main relationship among archosauria, diapsida, and reptilia clases?
Answer:
Archosauria (the "ruling reptiles") is a major group of diapsids, differentiated from the other diapsids by the presence of single openings in each side of the skull, in front of the eyes (antorbital fenestrae), among other characteristics. This continues the tetrapod trend of the reduction of skull bones by the fusion of multiple bones and the opening of fenestrae in the skull. This helps to lighten the skull, provides more room for muscles and other tissues, and allows more skull flexibility (kinesis) when eating. Other typical archosaurian characteristics include another opening in the lower jaw (the mandibular fenestra), a high narrow skull with a pointed snout, teeth set in sockets (called thecodont tooth implantation), and a modified ankle joint.
Diapsids ("two arches") are a group of amniote tetrapods that developed two holes (temporal fenestra) in each side of their skulls about 300 million years ago during the late Carboniferous period.[1] The diapsids are extremely diverse, and include all crocodilians, lizards, snakes, tuatara, turtles, and birds.[2] Although some diapsids have lost either one hole (lizards), or both holes (snakes and turtles), or have a heavily restructured skull (modern birds), they are still classified as diapsids based on their ancestry. At least 7,925 species of diapsid reptiles[3] exist in environments around the world today (nearly 18,000 when birds are included).
Reptilia, presented as a Class in our classification, includes turtles (Testudines), snakes and lizards (Lepidosauria), crocodiles and their relatives (Crocodilia), and birds (Aves), as well as a number of extinct groups.
Explanation:
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True or False: An Inoculation Loop is a tool used when transferring/culturing bacteria. *
Answer:
Yes this fact is true
Explanation:
I hope this helps
Mutated codons code for what in silent mutations?
Answer:
Code for the same amino acid as the original codon
Explanation:
Mutation, which is any alteration in the nucleotide sequence of a gene, can occur when there is a replacement of base nucleotides. This is called SUBSTITUTION MUTATION. Substitution mutation can either lead to missense, nonsense or silent mutations.
As stated in this question, SILENT mutation is the one in which there is no change in the amino acid sequence after translation of the mutated mRNA. In other words, the mutation leads to an alteration of codon but the MUTATED CODONS CODE FOR THE SAME AMINO ACID as the original codon, hence, no effect on the protein produced or individual, in general.
3. What is the definition of recessive and dominant?
4. What is the difference between genotype and phenotype? Write a 5 sentence
paragraph describing the difference between the two.
Answer:
Recessive: relating to or denoting heritable characteristics controlled by genes which are expressed in offspring only when inherited from both parents.
Dominant: Refers to a trait that appears more frequently than another trait, resulting from interactions between gene alleles.
Explanation:
Genotype and phenotype differences
Genotype Phenotype
The hereditary information of the organism in the form of gene in the DNA and remains the same throughout the life. The characters of an organism which are visible are known as phenotypes.
Same genotype produces same phenotype. Same phenotype may or may not belong to same genotype.
Present inside the body as genetic material. Expression of genes as the external appearence.
The genotype is inherited from the parent to the offspring. The phenotype is not inherited from the parent.
It can be determined by scientific methods such as the polymerase chain reaction. It can be determined by observing the organism.
It is affected by genes. It is affected by genotype and environmental conditions.
For eg., Blood group, eye colour, height, genetic diseases. For eg., Weight, physique, beak of birds
17.
Why is it important to conserve the biodiversity of Earth?
A. to decrease the amount of global predator populations
B. to decrease the stability of major global ocean currents
C. to increase the stability of ecosystems during environmental
changes
D. to increase the amount of nonrenewable resources located in the
lithosphere
Put these in order NO LINKS NO LINKS
Drag the structures to the appropriate boxes in order that oxygen would travel from the outside of your body to the blood stream
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
IF YOU DON'T KNOW THE ANSWER, DON'T ANSWER THIS QUESTION
Answer:
Nasal Caviry
Trachea
Pharynx
Bronchi
Bronchioles
Aveoli
Capillaries
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Answer:
Yes; When the cell grows larger,, it needs more cell membraine to prepair for mitosis. Without this process, the cell would rupture.
Yes; The cell would not be able to grow if the surface area stayed the same.
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What are the three involved elements in Photosynthesis?
Answer:
Carbon dioxide , water and water
The range of waves that includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays and gamma rays is called-
Answer:
The range of waves that includes radio waves, microwaves, infrared, visible light, ultraviolet light, X-rays and gamma rays is called
electromagnetic energy/spectrum.
Please match the correct term to it definition
Answer:
Explanation:
1: Is symbiosis
2: is eutrophication
3: Predation
4: Trophic efficiency
5: Greenhouse effect
6: Nutrient cycling
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how do tortoises differ among the galapagos islands? what causes these differences?
Answer:
How did tortoises and birds differ among the islands of the Galapagos? The tortoises on the Galapagos Islands all had different shaped shells; therefore they were different species of the same category of tortoises. ... Darwin found several types of small, ordinary brown birds.
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Explanation:
Compare how ectotherms and endothermic maintain body temperature
Answer: Ectotherms depend on external heat sources. Their body temperature changes with the temperature of the environment. Endotherms generated heat internally to maintain body temperature.
Explanation:
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Based on this graph
What is the approximate age of the dust sample?
A. Between 4 and 5 billion years old
B. Between 6 and 7 billion
years old
C. Between 24 and 25 years old
D. Between 32 and 33 billion years old
Answer:
B
Explanation:
Answer:
b
Explanation:
True or false: Yeast is a bacteria cell.
True or False: An Inoculation Loop is a tool used when transferring/culturing bacteria.
True or False: A BSC focuses on limiting the chance of a liquid contaminating a worker.
false
Explanation:
its a living organism
Carbon cycles through the biosphere in all of the following processes EXCEPT
a. photosynthesis
b. burning of fossil fuels
c. transpiration
d. decomposition of plants and animals
What are 2 things that two male polar bears might compete for in an ecosystem?
Answer:
Food and habitat resources
Explanation:
Ecosystems are communities that animals and organisms fight and survive in.
Answer:
bro ide man i can't even tell you man iExplanation:
There are 300 falcons living in a forest at the beginning of 2013. Every year, there are 50 falcons born and 30 falcons that die.
What is the the population growth rate?
Answer:
The growth rate is 20+ Falcons are born per year.
Explanation:
Hope this helps!
Answer:
Population in the world is currently (2020) growing at a rate of around 1.05% per year (down from 1.08% in 2019, 1.10% in 2018, and 1.12% in 2017). The current average population increase is estimated at 81 million people per year. Annual growth rate reached its peak in the late 1960s, when it was at around 2%.
Explanation:
Discuss 3 different types of mutations that can happen
Answer:
Explanation:
Un cambio en la secuencia de bases en el ADN o ARN se conoce como mutación . ¿La palabra mutación te hace pensar en ciencia ficción y monstruos con ojos de insecto? Piensa de nuevo. Todos tienen mutaciones. De hecho, la mayoría de las personas tienen decenas o hasta cientos de mutaciones en su ADN. Las mutaciones son esenciales para que ocurra la evolución. Son la fuente principal de todo el material genético nuevo -nuevos alelos - en una especie. Aunque la mayoría de las mutaciones no tienen efectos en los organismos en que ocurren, algunas mutaciones son beneficiosas. Incluso las mutaciones dañinas rara vez causan cambios drásticos en los organismos.
What are the seven taxon characteristics of a human again?
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Answer:
I believe they are Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
Explanation: