Suppose you find a rock with a goniatite fossil and another rock with an ammonite fossil? Which rock is older? How do you know?
Final answer:
The rock containing a goniatite fossil is older than the rock with an ammonite fossil because goniatites lived from the Late Devonian to the end of the Permian, while ammonites appeared later, in the Early Jurassic. This assessment is based on stratigraphic correlation using index fossils to determine relative ages of rock layers.
Explanation:
If you find a rock with a goniatite fossil and another rock with an ammonite fossil, the rock with the goniatite fossil is generally older. The reason is based on the known geological timeframes during which these creatures lived. Goniatites thrived in the Late Devonian and were prolific until the end of the Permian period, around 252 million years ago, which corresponds to the Capitanian extinction event. Ammonites, on the other hand, first appeared in the Early Jurassic, after the Permian and lasted until the end of the Cretaceous period. Therefore, since goniatites existed before ammonites, the rock containing a goniatite fossil would be older than that with an ammonite fossil. This principle of using index fossils is critical in relative age dating and relies on the known existence spans of these fossils to determine the relative ages of rock layers.
Additionally, fossils like ammonites are very common and can be indicative of narrower spans of geologic time because they are easily recognizable, existed for a short period, and had wide geographic distribution. This makes them ideal for stratigraphic correlation, which is a method used to correlate layers of rock in different locations by matching rock layers by their contained fossils. Hence, finding these fossils can indeed help place them on a stratigraphic column given such patterns and a guide to important species for relative dating can be used.
Men and women ________ in the pleasure they receive from orgasm. pet scans have shown that ________ brain regions are active in men and women during orgasm
dont differ much, the same
Answer:
They are not really different compared to animals.
Explanation:
During the interview more favorable traits and successful life outcomes are usually ascribed to
More attractive candidates.
When plotting a 20 week old infant's weight on a standardized growth chart?
You calculate the variables in. What is the real question here?
All living organisms on earth grow, maintain homeostasis, and undergo cell division. Two types of cell division are binary fission and mitosis. Which claim most accurately describes the relationship between mitosis and binary fission?
A) Mitosis and binary fission are identical processes.
B) Mitosis is a process likely derived from binary fission, found in ancestral bacterial
C) Binary fission and mitosis likely evolved separately since they have few similarities.
D) Binary fission only occurs in yeast and fungi, mitosis only occurs in plants and animals.
the correct answer is b. i hope this helps you
Which statements describe the effects of indoor pollution? Check all that apply. Ultrafine particles cause poor health. Nose hairs and mucus catch all the particles before they reach the lungs Ultrafine particles are absorbed by the lungs when people breathe. Ultrafine particles contribute to more than 20,000 deaths per year in the United States. Most ultrafine particles can be seen with the unaided eye.What happens when the atmosphere interacts with the biosphere? Check all that apply. Winds are produced. Groundwater supplies are replenished. Carbon dioxide is cycled during plant respiration. Water vapor is available for plant photosynthesis. Volcano eruption influences the cycling of nitrogen.
The correct statements that describe indoor pollution are;
Ultrafine particles cause poor health.Ultrafine particles are absorbed by the lungs when people breatheB. The following happens when atmosphere interact with biosphere.
Carbon dioxide is cycled during plant respiration. Water vapor is available for plant photosynthesisWhat is indoor pollution?Indoor pollution is the release of toxic substances withina confinement or house or environment which make the environment unsafe for habitation.
Therefore, The correct statements that describe indoor pollution are;
Ultrafine particles cause poor health.Ultrafine particles are absorbed by the lungs when people breatheLearn more about pollution below.
https://brainly.com/question/24704410
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According to the ipats model (notice the extra letter on the end), if an ecosystem's sensitivity is low, will the environmental impact be higher or lower than an ecosystem with higher sensitivity?
Final answer:
In the IPATS model, an ecosystem with low sensitivity has a lower environmental impact than one with higher sensitivity. Highly resilient ecosystems are less vulnerable to climate change. Economic tradeoffs in environmental conferences reflect the balance of immediate economic needs versus long-term environmental goals between low-income and high-income countries.
Explanation:
According to the IPATS model, which stands for Impact = Population x Affluence x Technology x Sensitivity, the environmental impact of an action depends on these factors. When considering an ecosystem's sensitivity, a low-sensitivity ecosystem will generally have a lower environmental impact compared to an ecosystem with higher sensitivity. This is because ecosystems with low sensitivity are more resilient and able to absorb disturbances without significant changes to their structural characteristics or function. Consequently, even if the population, affluence, or technology aspects suggest a high potential impact, the actual impact is mitigated by the ecosystem's low sensitivity.
A highly resilient ecosystem is able to recover from disturbances and continue to provide ecosystem goods and services. It's less vulnerable to climate change effects like temperature rises because the flora and fauna are better adapted to handle fluctuations in their environment.
In international conferences on global environmental damage, the economic tradeoffs often involve balancing the immediate economic needs of low-income countries with the long-term environmental protection goals that are a priority for high-income countries. This can lead to disagreements on responsibilities and funds allocation for environmental protection measures.
Identify the statement that is true.
A.Passive transport does not require the cell to use energy, while active transport does. An example of passive transport is a the sodium-potassium pump.
B.Passive transport requires the cell to use energy, while active transport does not. An example of passive transport is a carrier protein involved in facilitated diffusion.
C.Passive transport does not require the cell to use energy, while active transport does. .An example of passive transport is a carrier protein involved in facilitated diffusion.
D.Passive transport requires the cell to use energy, while active transport does not. An example of passive transport is a the sodium-potassium pump.
the best answer u got here is C. Passive transportdoes not require the cell to use energy, while active transport does. An example of passive transport is a carrier protein involed in facilitated difussion.
this the best answer u got here and i reccomend this one plz mark brainliest
Final answer:
The accurate statement is C: Passive transport does not require energy, while active transport does. Facilitated diffusion with carrier proteins is a form of passive transport, whereas the sodium-potassium pump exemplifies active transport.
Explanation:
The statement that is true is: Passive transport does not require the cell to use energy, while active transport does. An example of passive transport is a carrier protein involved in facilitated diffusion. Therefore, the correct answer is C. Passive transport includes processes such as diffusion, where molecules move from an area of high concentration to an area of low concentration, and facilitated diffusion, which involves carrier or channel proteins but does not require energy.
Active transport, on the other hand, requires energy in the form of ATP because it moves substances against their concentration gradient. A prime example of active transport is the sodium-potassium pump, which exchanges sodium ions for potassium ions across the plasma membrane of animal cells, requiring energy to function.
A young woman recovering from a blow to her head finds she has great difficulty maintaining her balance and coordinating her movements. injury to which part of her brain is likely to be causing her difficulties? cerebral cortex medulla thalamus pons cerebellum
the most likely is the cerebal cortex.
Answer:
Cerebellum
Explanation:
The cerebellum is the part of the brain present posterior to medulla and pons. Its main function is to coordinate the contractions of skeletal muscles during movements to ensure smooth and skilled movements. It sends signals to motor areas of the cerebral cortex to ensure the coordinated muscular activities during several body movements.
Cerebellum also helps maintain the posture and balance of the body. Any injury to the cerebellum makes the individuals unable to maintain the correct posture and to perform coordinated skeletal muscle movement.
Although _[blank]_ makes up 78% of the Earth's atmosphere, it is not directly usable by most living organisms.
carbon dioxide
nitrogen gas
phosphorus
water vapor
Nitrogen gas is the answer.
Hope this helps.
Although Nitrogen Gas makes up 78% of the Earth's atmosphere, it is not directly usable by most living organisms.
Give an example of how a mutation can affect an organism.
Don’t know if this will help at all but,
Down syndrome is caused by a genetic mutation. This mutation also causes flat feet.
They could become immune to a certain disease or for a animal such as a rabbit they could mutate and end up with white fur which could help them adapt in an area with snow.
Which two organelles contain their own dna
What are the tough and flexible connective tissues seen in embryos?
periosteum
Haversian canals
vessels
cartilage
How does the Bicoid protein provide positional information along the anterior-posterior axis of the fly embryo?It is present at high concentration at the __________ end and low concentration at the ____________ end.
It is present at high concentration at the anterior end and low concentration at the posterior end.
Gene bicoid (and its product-bicoid protein) organizes anterior development in Drosophila.
During oogenesis, bicoid mRNA is actively localized to the anterior of the Drosophila egg.
Bicoid genes together with Hunchback genes are the maternal effect genes and that are most important for patterning of anterior parts of the Drosophila embryo such as head and thorax.
The chemical reaction that breaks the bonds between chains of monomers is called _____.
The chemical reaction that breaks the bonds between chains of monomers is called hydrolysis.
Hope this helps,
Davinia.
Explain the chemical reaction for breaking down a polymer into individual monomers. The process of splitting the bond between monomers is called hydrolysis. Hydrolysis means “to break with water”. Since a water molecule was lost during dehydration synthesis, hydrolysis brings the water back.
Bats eat insects that damage crops and mosquitoes that are vectors for disease. One million bats can eat several tons of insects per night, saving billions of dollars in pesticides yearly. Agricultural and public health scientists are concerned about the spread of white-nose syndrome (WNS). WNS is a result of a fungus that can infect cave-dwelling bats. While bats hibernate during winter months, the fungus covers the bats’ face and wings. WNS has a near 100% mortality rate, and 5.7 million bats have died since the discovery of the fungus in 2006. Many scientists are searching for ways to protect these bats. The relationship between this fungus and bats can best be defined as
The answer is; parasitism
In this type of relationship, one organism benefits while the other is harmed. Parasitism differs from predation in that the parasite is often smaller than the host and reproduces at a higher rate. It also does not kill its host directly but by reducing its fitness.
Answer:
Parasitic, because the fungus obtains nutrients and shelter from the bats
Explanation:
Hope this helps
Which of the following are common pioneer species?
Select all that apply.
dogwood trees
conifer trees
small shrubs
lichens
cyanobacteria
Final answer:
Lichens, cyanobacteria, and small shrubs are common pioneer species that initiate ecological succession by colonizing barren environments, contributing to soil formation, and paving the way for other species to follow.
Explanation:
Pioneer species are the first organisms to colonize barren environments or disturbed areas, initiating the process of ecological succession. Primary succession occurs when these species establish themselves in environments that are devoid of soil, such as newly formed volcanic islands or areas left bare after a glacier retreats. The common pioneer species that can live on bare rock and contribute to soil formation through the weathering of rock and the accumulation of organic matter include lichens and cyanobacteria. Over time, as soil quality improves thanks to these organisms, other species, such as small shrubs, may also take hold. However, dogwood trees and conifer trees are not typical pioneer species as they may require more established soil conditions to grow.
The copying mechanism of DNA is most likecarving a figure out of wood.dripping water out of a faucet.taking a picture of yourself and of your reflection in a mirror.mixing flour, sugar, and water to make bread dough.
The correct answer is: taking a picture of yourself and of your reflection
This example above can be compared to copying mechanism of DNA-replication in which one strand of DNA (e.g. 3’-5’ orientation) is used as a template to make new strand with opposite orientation (5’-3’). Picture of yourself is a template and a picture of reflection is copied strand.
A client with a history of type 1 diabetes is demonstrating fast, deep, labored breathing and has fruity odor breath. what could be the cause of the client's current serious condition
Based on the symptoms present, he could be experiencing hyperglycemia.
Answer:
Ketoacidosis
Explanation:
Kussmaul respirations (as seen from our case stydy is fast, deep, labored breathing) are usual in ketoacidosis. Acetone, that is well volatile, can be observed on the breath via its specific fruity odor.
If treatment is delayed, the aftermath of ketoacidosis is failure of the circulatory system, renal becomes non-functional, followed by death.
Ketoacidosis is a usual phenomena in people diagnosed with diabetes that can't manufacture insulin, as the case maybe in type 1 diabetes. The probable reason is ketoacidosis.
Individuals with type 2 diabetes are tends to have the hyperosmolar hyperglycemic nonketotic syndrome due to insufficient amount of insulin, which could employ adequate amount of glucose in averting ketosis without sustaining a regular blood glucose level.
The most probable reason is ketoacidosis.
Mercury is a heavy metal that occurs naturally in minerals and rocks. Release of mercury from natural sources has been relatively constant over time. However, anthropogenic release of mercury has increased significantly in recent years primarily due to increased fossil fuel mining and combustion. Mercury that is released into the air eventually ends up in soils or surface water. Once in water, microbes convert mercury into methyl mercury, which is absorbed quickly and concentrated in the tissues of predatory fish such as shark and swordfish. Large fish typically concentrate more mercury than small fish. People who eat fish with high methyl mercury concentrations can show tremors, deafness, muscle incoordination, and attention deficits. Pregnant women and children are especially sensitive to methyl mercury's toxic effects. Learning disabilities and developmental delays are common in children who have been exposed to significant levels of methyl mercury. Concentrations of methyl mercury are higher in large fish than in their prey and in the air. This is best described as ________. a synergism b biomagnification c bioaccumulation d distillation e toxification
The toxification of released increased mercury in fish is best described as:
C. Bioaccumulation
Bioaccumulation takes place within an organism when the rate of intake of a substance is greater than the rate of excretion or metabolic transformation of that substance.
The correct option is b) biomagnification.
Mercury, though a naturally occurring metal, presents significant health risks, especially when its most toxic form, methylmercury, accumulates in the food chain. This occurs through biomagnification, a process where the concentration of a substance, like mercury, increases as it moves up the trophic levels of a food chain. Mercury contamination occurs not just through natural sources but also from anthropogenic activities such as the burning of fossil fuels. Once in the environment, mercury can be converted to methylmercury by microorganisms. Long-living, predatory fish such as shark and swordfish, which are higher up the food chain, tend to accumulate higher levels of mercury in their tissues. When humans consume these fish, they are at risk of mercury poisoning, which can lead to serious health issues such as tremors, deafness, and developmental delays in children.
Carbon dioxide can be represented by the chemical formula A) C2O B) CO2 C) Ca2O D) CaO2
B.) CO2 that is the chemical formula for carbon dioxide
Answer:
CO2
Explanation:
Carbon dioxide is made by the combination of carbon and dioxide.
For the formation of carbon dioxide the reaction that takes place is as follows:
C + O2 ------> CO2
Here the valency of carbon is 4 and that of oxygen is 2.
A double bond is formed between an atom of carbon and two atoms of oxygen as shown in the image and this results in the formation of carbon dioxide, CO2.
Which of the following most accurately describes a coelom?
body structure that is located outside the ectoderm
body cavity that contains the internal organs
body part that occurs in animals that have radial symmetry
body part that exists in all animals
Body cavity that contains the internal organs.
Answer:
Body cavity that contains the internal organs.
Explain why methionine is the first amino acid
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The location of continents has no affect on their climate.
Please select the best answer from the choices provided
T
F
The answer is False. The location of the continents has a great effect on their climate. Because of their distance from the equator which is the closest point to the sun.
Answer:
False
Explanation:
The location of continents affects on their climate. The continents present near any water body have maritime climate. They have a moderate climate with almost constant temperature all over the year and no or less seasonal variations. On the other hand, the continents that do not have any water bodies in vicinity exhibit continental climate with a huge seasonal and daily temperature variations.
A radioactively labeled protein is made by cells and followed through various organelles in the secretory pathway. After six hours, all of the radioactivity is still primarily in the Golgi apparatus. This suggests that the – protein possesses a signal for localization withinthe Golgi apparatus
Answer:
The protein is targeted to Golgi apparatus.
Explanation:
Protein targeting or sorting is a process by which synthesized proteins are transported to their appropriate localizations in the cell or outside it. Proteins can be targeted to the inner space of an organelle (such as Golgi apparatus or endoplasmic reticulum) or its membrane, plasma membrane, or to exterior of the cell via secretion.
Usually, protein contains signal sequence on the N terminus that is involved in destination targeting.
6. the part of the circulatory system that brings carbon-dioxide filled blood to the lungs cell
The pulmonary circuit transports blood to the lungs. The blood is oxygenated there and then carried back to the heart. Gaseous exchange happens in the lungs:
Carbon dioxide diffuses from the blood into the air in the alveoli.
which of the following answers are inccorect and what is the correct answerFor the next 17 questions select one of the following virus structures to correctly complete each of the statements belowQuestion Selected MatchConfers greater susceptibility to disinfectantsB.The viral envelopeIs a flexible membrane composed of protein and lipidB.The viral envelopeMust enter the host cytoplasm for replication to occurA.The viral genomeIs affected by base analogs in viral inhibitionA.The viral genomeNumber is characteristic for a particular virusC.The viral capsomereIs a protein subunit of the capsidC.The viral capsomereIs similar to the host membrane except with viral componentsB.The viral envelopeContains functional projections from the lipid bilayer called spikes.D.The viral capsidmay be either DNA or RNA but not bothA.The viral genomefuses with the cell membrane in infectionB.The viral envelopeis acquired by "budding"B.The viral envelopeIs subdivided to capsomeres in some virusesD.The viral capsidis a protective covering for the genomeD.The viral capsidis responsible for the symmetry of a virusD.The viral capsidconsists of nucleic acidA.The viral genomeexists in segments in some virusesA.The viral genomemay contain enzymes to assist in penetration of the host cell.D.The viral capsid
The answer is b the viral envelopes subdivided to cap some res in some viruses
What does the presence of homologous structures in different organisms suggest?
common distribution
common ancestry
similar habitat
similar movement
The answer is “common ancestry”
Answer:
The correct answer is option 2. Common ancestry.
Explanation:
The homologous structure is the structure that has a similar anatomical structure or underlying skeleton and can perform a different function in different organisms.
Homologous structures are similar in different organisms because they diverge from a common ancestor. All organisms that have homologous structures are considered to have a common ancestry. for example, human arm, dogs forearm, bat's wing all have a similar skeleton structure
Thus, the correct answer is option 2. Common ancestry.
Why are carbohydrates important in body functions
(healthy carbohydrates) grains, fruits, veggies, are important because this is what fuels all cells to function as they should. 4 example, someone with an eating disorder, if not treated, results in a person who sleeps most of the day, lethargic, has no energy and affects the thyroid gland and eventually the whole body system
In what stage were most of the onion root tip cells? based on what you know about cell cycle division, what does this imply about the life span of a cell?
The correct answer is interphase.
Root tip cells are known cells that have a rapid division to allow the growth and lengthening of the roots
The life of the somatic cell is divided into two major phases: interphase and mitosis.
The interphase is the longest phase in a eukaryotic cell, it is in this phase that the cell must prepare for division, and this by transcribing necessary proteins, replicate and repair the DNA in case of lesions. .
Mitosis is relatively fast, it represents less than a quarter of the life of the cell.
Answer:
The correct answer is interphase.
Explanation:
Interphase is the cell cycle stage in which most of the onion root tip cells are present. Interphase is the longest part of the cell cycle as the cell grows and develops here.
It takes place before mitosis and the majority of the development takes place in this stage. The stage comprises all the three G1, G2 and S phase. Thus, it can be said that the cells go through the process of development before it actually begins to proliferate. This shows that the cells in the onion root tips generally spend the majority of their lifespan in the interphase stage.