Answer:
2.3 L
Explanation:
when you have this eqaution you use P1V1T2=P2V2T1.
since you are looking for volume of gas cylinder that means you are looking for V2.
so you have your given P= 1.0 atm, V=2.5L, T=298K.
They ask you to use STP or standard pressure and temperature.
STP P= 1atm, STP T=273 K
so you are looking for V2 meaning you are going to get V alone so your new equation is P1*V1*TS/ P2* T1= V2
so you now substitue so its now 1*273*2.5/ 1* 298= V
682.5/ 298= V
Lastly V= 2.2902 and you round to tenths so now you have
V= 2.3 L
The volume of the gas in the cylinder at STP is 2.3 L
Data obtained from the question Initial volume (V₁) = 2.5 LInitial pressure (P₁) = 1 atmInitial temperature (T₁) = 298 KFinal temperature (T₂) = STP = 273 KFinal pressure (P₂) = STP = 1 atmFinal volume (V₂) =?Since the pressure is constant, we shall determine the final volume of the gas by using the Charles' law equation as shown below:
V₁ / T₁ = V₂ / T₂
2.5 / 298 = V₂ / 273
Cross multiply
298 × V₂ = 2.5 × 273
298 × V₂ = 682.5
Divide both side by 298
V₂ = 682.5 / 298
V₂ = 2.3 L
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The table shows the food choices for two species of birds. Bird Food Questor small seeds, flying insects Wood Plaxar large berries, beetles Which will most likely happen to the Questors as a result of the Wood Plaxers migrating to their habitat? A. the Questors will be forced to fly to a different habitat B. the Questors will compete with the Wood Plaxars for food resources C. the two species will coexist with no competition D. the two species will be come extinct
Answer: A.
Explanation:
Describe in your own words, the different energy transformations that occur in a power plant.
1. A trait is a set characteristic. They are passed down from parents to offspring. Describe two examples of a trait.
2. Elaborate on how traits are passed down.
3. Do identical twins have the same DNA? Explain your ideas.
Answer:
Alleles, genotype & phenotype. Alleles and genotypes are important foundations of genetics. An allele is a particular form of a gene and they are passed from parents to their offspring. A genotype is the combination of two alleles, one received from each parent.
Explanation:
sorry if im wrong
Answer:
Say one parents dominate trait is blue eyes then most likely the kid will have blue eyes and so will the kid's kid's and so on, And yes I think twines have the same DNA because most time when one get super sick the other one can donate body parts because they have the same DNA.
Explanation:
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True or False State the correct answer and provide your reasoning
6. Gravity is a force that can be changed. T/F
7. The bigger an object is, the smaller the force of gravity. T/F
8. As one object gets closer to another object, the force of gravity will increase. T/F
9. The Sun has a greater gravitational force than Jupiter. T/F
plsss helppppppp will give you alot of pointss
A. The sound is being absorbed around the corners of the doorway.
B.
The sound is being diffracted around the corners of the doorway.
C.
The sound is being refracted around the corners of the doorway.
D.
The sound is being reflected around the corners of the doorway.
Animal Reproduction Interactivity
Can you describe how an aquarium moon jellyfish population will change over time?
Record Data and Observations
Part 1 Explore the Life Cycle
For each transition in the jellyfish life cycle, indicate whether it is the result of growth, sexual reproduction, or asexual reproduction. Provide the evidence that supports your choice for each.
Adult medusas to larvae
Larva to polyp
Polyp to reproducing polyp
Reproducing polyp to juvenile medusas
Juvenile medusas to adult medusas
Analyze and Conclude
1. Draw Conclusions Once polyps have been established and are producing juvenile medusas, is sexual reproduction required to provide adult medusas for the exhibit? Explain why or why not.
2. Scientific Writing The museum has asked you to make a sign for the exhibit. Visitors will read the sign when guides and volunteers are not available to talk about the exhibit. Using the information gathered in this interactivity, write a paragraph that describes what visitors may see in the tank and explains the reproductive cycle of jellyfish.
Step 1
Jellyfish do not give birth to their young because they expel undeveloped eggs in the form of zygote or embryo from their bodies and deposit them on the ocean floor before moving on. They don't even care about the eggs that have been laid.
Step 2
Jellyfish have two distinct body types during their lives: medusa and polyps. Polyps reproduce by budding while medusa reproduce as by spawning eggs and sperm.
Jellyfish can reproduce in the adult, or medusa, stage by releasing sperm and eggs into the water, forming a planula. Polyps clone themselves and bud, or strobilate, into ephyra, a different stage of jellyfish life. The adult medusa jellyfish develops from his form.
Only a few jellyfish species obtain sperm through their mouths in order to fertilise eggs within their bodies, but the majority of jellyfish simply release sperm or eggs into the water. They will do this once a day, normally at dawn or dusk, if conditions are favorable.
Please help, Force, Acceleration, and Mass. Thank you!!
nHow would that temperature change affect the density of the air above the land or water being heated, and what direction would the air move?
Answer:
Water has a high specific heat, which means it absorbs more energy than air to raise its temperature
hoped this helped
. Deltas form mainly due to
Answer:
A river delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot carry away the supplied sediment.
Explanation:
have a good day /night
may i please have a branlliest
Answer:
A river delta is a landform created by deposition of sediment that is carried by a river as the flow leaves its mouth and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot carry away the supplied sediment.
Deltas form where rivers meet the ocean, and are naturally shaped by river, wave and tidal processes. Deltas are preferred locales of human habitat ion due to their high productivity, rich biodiversity, and easy transport along abundant waterways.
Explanation:
please mark brainlest
-QUESTION 4-
Why are limiting factors helpful in an ecosystem?
A.They are not helpful only harmful
B.They make it so the population won't get too large
C.They make it so the population can grow quickly
Answer:
B
Explanation:
because if a population gets to large it can mess up the whole eco system
What would happen if producers were removed from the food chain?
2. How would you describe an ecosystem?
3. What describes the relationship between a food chain and a food web?
4. What would most likely be the result of an invasive species entering an ecosystem?
5. Why are humans responsible for many invasive species?
6. What are the three main roles of an ecosystem?
7. What is the purpose of a decomposer in an ecosystem?
Answer the following questions with a pictures.
1. What is the main source of energy for ecosystems?
2. What are some natural things that can disturb ecosystems?
Write a paragraph (5-8 complete sentences) using the prompt below in purple:
An ecosystem has many living and nonliving things. Choose one producer, one consumer, and one decomposer. Explain how they work together.
An ecosystem is made up of all the living and nonliving things in an area. The living parts include plants, animals and insects. The nonliving parts include water, rocks, soil and sand. Swamps,prairies, oceans and forests are all examples of ecosystems.There are usually many different kinds of life in a single ecosystem. A grassland ecosystem, for example, contains much more than just grass. It includes other plants, mammals, insects and earthworms. It also includes many tiny living things in the soil.Three Roles For Living Things Each living thing in an ecosystem has a role to play. The three main roles are producer, consumer and decomposer. Green plants are producers. They make their own food through a process called photosynthesis. Animals, including humans, are consumers. They eat, or consume, plants or other animals. By Encyclopaedia Britannica,
Bacteria and other living things that cause decay are decomposers. Decomposers break down the waste products and dead tissue of plants and animals. They return nutrients to the soil. These nutrients help new plants grow. Producers, consumers and decomposers depend on one another and provide nutrients for one another.This is called a food chain.Feeding Levels A food chain describes the order in which matter and energy move through the feeding levels of an ecosystem. The levels of a food chain are basically the same across all ecosystems. The first level is the producers. After that is the consumers. Sometimes consumers are further divided into primary consumers, secondary consumers and tertiary consumers. The final link in all food chains is the decomposers. The decomposers break down dead organisms and natural waste.The consumers at the top feeding level of a food chain are called top predators. They have no predators hunting and trying to eat them. Instead, their population size is controlled through competition. They have to compete with one another for food and other resources.Energy FlowThe main source of energy in almost all ecosystems is the sun's energy. As energy moves through the ecosystem, much of it is lost at each feeding level. Itescapes as heat. That is the main reason why few food chains have more than five feeding levels. Diagrams called energy pyramids are used to show the flow of energy from one feeding level to the next in a food chain. Most ecosystems have more than one food chain. Food chains overlap. They connect to form a food web.Recycling Nutrients Many nutrients are constantly cycling through an ecosystem. These include water, carbon and nitrogen. A nutrient is something that helps living things grow.Nutrients from soil enter into plant tissues. When consumers eat the plants, the nutrients enter the consumers' tissues. Consumers that are eaten transfer the nutrients on to the predator at the next feeding level. Consumers that are not eaten die and transfer nutrients in their decaying tissues to the decomposers that feed on them. The decomposers recycle these nutrients back into the ecosystem. They transfer the nutrients back into the soil and air, where the nutrients become available to producers.A Delicate Balance
an ecosystem's health depends on a delicate balance. This balance must exist between all of the members of the ecosystem, and their surrounding environment. If something disturbs the balance,the ecosystem and all its members might suffer. Natural things that can disturb ecosystems include a changing climate and natural disasters.Human activities that can disturb ecosystems include polluting and clearing land for farms or buildings.Humans also are responsible for many invasive species. An invasive species is a living thing that spreads through an ecosystem where it did not exist before. Invasive species can threaten the plants and animals that originally made up the ecosystem. For example, Burmese pythons were brought to Florida as pets. Some pythons escaped and began reproducing in the wild. Their skill at hunting has decreased the number of wood rats and storks in the area. This upset the balance of the natural ecosystem.
Answer:
hdgghgkjhkklf
Explanation:
3 im pretty sure! Hope u get it right
What are the different levels in the Linnaean classification system? Which is the broadest? Which is the most specific?
Answer:Linnaeus developed the following levels of classification, from the broadest category to the most specific: kingdom, class, order, family, genus, species.
Explanation:
1.Which description matches the histogram of the population 50 generations ago?
A.Most of the newts had low-poison level traits; very few had high-poison level traits.
B.Most of the newts had high-poison level traits; very few had low-poison level traits.
C.All of the individuals in the population had high-poison-level traits.
D.None of the individuals in the population had high-poison level traits.
2.
Which description matches the histogram of the population today?
A.Most of the newts have low-poison level traits; very few have high-poison level traits.
B.Most of the newts have high-poison level traits; very few have low-poison level traits.
C.All of the individuals in the population have high-poison level traits
D.None of the individuals in the population have high-poison level traits
Answer:
B for the first answer
Explanation:
The histogram of the population 50 generations ago showed that the majority of newts had low-poison level traits and very few had high-poison level traits. Now, the histogram of the population shows that the majority of newts have high-poison level traits and very few have low-poison level traits. So, the correct option for 1 and 2 are A and B.
What is Histogram?A histogram is a graphic depiction of a frequency distribution with continuous classes that has been grouped. A series of rectangles with bases equal to the distances between class boundaries and areas proportional to frequencies in the associated classes make up the area diagram.
Since the base in such representations spans the spaces between class boundaries, every rectangle is neighboring. For above given example, The population's histogram from 50 generations ago revealed that most newts possessed low-poison level features, while just a small number possessed high-poison level traits. Now, the population's histogram reveals that most newts exhibit features associated with high poison levels, whereas relatively few exhibit traits associated with low poison levels.
So, the correct option for 1 and 2 are A and B.
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QUESTION 1.... Please help!!
Competition between two organisms for resources is a limiting factor because...
A. There is only a limited amount of food and living
space available in any ecosystem.
B.Predator-prey populations often increase and decrease in cycles.
C.Abiotic factors such as light, water, and temperature are present.
D.Cities, highways, campgrounds, and orchards provide alternate environments for
animals and plants.
How can living things be classified? What are the criteria?
Answer: Scientists classify living things at eight different levels: domain, kingdom, phylum, class, order, family, genus, and species. In order to do this, they look at characteristics, such as their appearance, reproduction, and movement, to name a few. hope this helps can u give me brainliest
Explanation:
Answer:
All living organisms are classified into groups based on very basic, shared characteristics. organisms within each group are then further divided into smaller groups. the classification of living things includes seven levels. kingdom, phylum, classes, order, family, genus, and characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. these specialized groups are collectively called the classification of living things.
Explanation:
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Annual precipitation amounts in centimeters are shown in the table for four environments. Which environment experiences the least humidity? (2 points)
Environment A 80–120 cm
Environment B 20–50 cm
Environment C 150–200 cm
Environment D 40–60 cm
The environment that experiences the least humidity is Environment C 150–200 cm. The correct option is C.
What is humidity?Humidity is the presence of water vapor in the atmosphere. If the water vapor in the atmosphere is high, then the high is humidity, when the vapor in the atmosphere is low, it is called low humidity.
Precipitation is the presence of condensation in the atmosphere. It creates hail, snow, or haze. It happened due to the gravitational pull of the clouds.
Here, the humidity is given 150–200 cm. of the environment C. The higher the precipitation, the lower will be the humidity. When the rain is high, there will be more humidity due to water in the atmosphere. So, Annual precipitation will be higher.
Thus, the correct option is C. Environment C 150–200 cm.
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-Question 2 please help me! -ASAP-
Between years 1975-1980, did wolves or moose have a higher population growth?
(Choose your answer below)
(They are both equal)
(Wolves)
(moose)
What might have caused the spike (increase) of moose population in 1995?
(Choose your answer below)
(An increase in the wolf population)
(A Decrease in the wolf population)
(Slower birth rates)
What caused the moose population to decrease so quickly after 1995?
(The moose and the wolves where)
competing for the same food.
(Moose population reached)
its carrying capacity.
(Wolf population completely)
died out.
plz answer (8th grade science but don't have on here)
water is wet. true or false? Why?
Answer:
True water is wet because when something is wet in this case it's water it has water on it at a molecular level. Water molecules are bonded on top of each other so it's wet.
Question 3 (please help)
When a population grows past the ecosystems carrying capacity, what happens to the population?
A.Continues to grow
B. The population starts to die off
C.The population grows then finds a new carrying capacity
Answer:
the Answer is B
Explanation:
If resources are being used faster than they are being replenished, then the species has exceeded its carrying capacity. If this occurs, the population will then decrease in size. Every stable population has one or more factors that limit its growth. A limiting factor determines the carrying capacity for a species.
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Information obtained from experiments must be:
Recorded
Previously known
Memorized
Answer:
Recorded
Explanation:
If you don't record your information you may need to prove your work and you might forget it!
-QUESTION 6-
A population of coyotes lives in a habitat with plentiful food and no predators. Analyze the graph and interpret what is happening to their population size at the one year mark.
A.The population size is increasing
B.The population size is decreasing
C.The population size is remaining the same.
D.The population size cannot be inferred from the graph
Answer:
A. The population size is increasing
Explanation:
Looking at the graph upon the x-axis we see the blue line at an increasing direction to the right. That means the population is increasing at the 1 year mark.
In an ecosystem , where there are no predators which can prey upon coyotes and they have plentiful food their population size is expected to increase which can be inferred from the given graph.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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How to fungi get their food? What are some examples of fungi?
Answer:
Mold and mushrooms are both examples of fungi.
Explanation:
Fungi feeds off of nonliving things.
Pretty pretty please help me with this
Through which of the following would sound waves travel the fastest?
A.
Earth's atmosphere
B.
a railroad track
C.
a vacuum
D.
a pool of water
If the gas begins at the conditions described in Trial 1, determine the volume of the gas at STP.
i need help! fake answers will be reported!!!!
Answer:
B. Continental shelf It has been stated in the question that the shelf of undersea land reaches 200 meter
no link need right answer
science no chemistry
Answer:
nuclear energy is correct
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Answer the following with 5 or more sentences:
What is the function of the permanent magnet in a speaker?
A student created a diagram to help to explain why the value on the balance changed as MAGNET 2 was lowered towards MAGNET 1. Magnet 1 was placed on the balance with the NORTH pole facing upwards. Which diagram accurately shows the orientation of magnet 2 as it was lowered?