I need help with this one question!

Answer:

Mass is gained.

Explanation:

When you put together baking soda and vinegar, a chemical reaction occurs that fills the balloon with gas (CO2 maybe? don't quote me on it its been a while)

no link need right answer

science no chemistry

Describe in your own words, the different energy transformations that occur in a power plant.

Pretty pretty please help me with this

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.

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

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.

water is wet. true or false? Why?

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.

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?

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

-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

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

NO LINKS!!!!!!
IF EVERYTHING IS RIGHT I WILL GIVE YOU BRAINLIEST
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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

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?

-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

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.

Information obtained from experiments must be:
Recorded
Previously known
Memorized

-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.

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.

Please help, Force, Acceleration, and Mass. Thank you!!

i need help! fake answers will be reported!!!!

How to fungi get their food? What are some examples of fungi?

What are the different levels in the Linnaean classification system? Which is the broadest? Which is the most specific?

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

plz answer (8th grade science but don't have on here)

. Deltas form mainly due to

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

How can living things be classified? What are the criteria?

If the gas begins at the conditions described in Trial 1, determine the volume of the gas at STP.

ANSWER ASAP GIVING BRAINLIEST AND OTHER THINGS!
Answer the following with 5 or more sentences:
What is the function of the permanent magnet in a speaker?