Population growth is defined as an increase in the number of individuals in a population. Thus, the population growth in the above example is zero.
What is Population growth?Population growth is defined as an increase in the number of people in a population or a dispersed group. Population growth is explained as an increase in the number of individuals in a population.
Population growth is defined as an increase in the number of individuals in a population where most communities with high population growth experience limited resources, for example food, while communities with low rates of population growth do not.
This formula is used to find out the population growth of a population; (Birth rate + emigration) – (death rate + emigration).
Given,
Birth rate = 4, the death rate = 3, immigration = 2, and emigration = 3.
Population growth = Birth rate + immigration - death rate -emigration
= 4 + 2 - 3 - 3
= 6 - 6
= 0.
Thus, the population growth in the above example is zero.
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A car that is moving fast at the bottom of an uphill ramp moves up the ramp, slows down and stops just for an instant, and then begins to roll back down the ramp. At which point does the car have the most potential energy and why? Help ASAP
The potential energy remains the same throughout. This is because energy is always conserved.
At the point where the car is moving the fastest at the bottom of the ramp. This is because the faster an object is moving, the larger its potential energy.
At a point directly in the middle between the bottom and when the car stops. This is because this is the perfect balance point between kinetic energy and potential energy.
At the point when the car is stopped. This is because its kinetic energy is zero at this point, which means all of its energy is in the form of potential energy.
Answer:
At a point directly in the middle between the bottom and when the car stops. This is because this is the perfect balance point between kinetic energy and potential energy.
Explanation:
When it is in the middle it has the most potential to move
Lesson Slides
2.2: Evaluating Energy Sources
Due Date
Tuesday, October 27, 2020 11:59pm
Resources
Harnessing Human Energy Glossary
Directions
Use the lesson slides as you work through each activity. These are where you will access all of the resources needed to complete this lesson guide.
Provide your responses in blue areas. Be sure to read and follow all of the directions.
Essential questions (orange) are questions we will keep trying to figure out through the lessons and will be able to answer at the end of the chapter or unit.
Key terms (blue) are important words or terms that you will become familiar with throughout the unit expected to know by the end. These can also be found in the glossary.
Activity 1
Reread the last two paragraphs of the “Energy Inventions” article below and highlight evidence that supports or goes against the claims:
Comparing Solutions
Using solar energy and capturing energy from humans are just some of the exciting ways people are using science to solve energy problems. There is no perfect solution, however. Solar energy relies on the sun and doesn’t work as well in the dark or on cloudy days. For example, if you were using your Little Sun to read at night and it ran out of energy, you would need to wait for the sun to come up so that more energy could be captured and transferred to the battery in your light. Just imagine if the next day was very cloudy! Your energy system would not be able to capture very much energy from the sun, so your light would not stay on for long.
The Little Sun lamp and the Hollow Flashlight have something in common: they get energy from somewhere else instead of making it themselves. In fact, that’s true of every object in the universe. Engineers must think about energy sources as they design their inventions. They must find an energy source that will do a good job of transferring energy to the object. The Little Sun lamp gets energy from the sun, while the Hollow Flashlight gets energy from the human body. There are many other possible energy sources to consider. For example, some devices transfer kinetic energy (energy of motion) from wind, water, or even people to power devices! There isn’t a single right way to provide energy when there’s no electrical grid available, and each source has its strengths and drawbacks. Which energy source would YOU choose?
Which claim do you think is most convincing based on the evidence you have gathered so far?
Activity 2
Ranking Energy Sources for the Rescue Team in the Doc.
Read each Energy Source Card carefully and discuss your questions and ideas about each energy source with your partner.
Next, arrange the cards in order of best to worst energy source options for the rescue team.
When you are finished sorting the cards, answer the question in your Doc.
Best Energy Source ↑
Worst Energy Source ↓
Which energy source did you rank as the best option for the rescue team? Why?
Activity 3
Complete the flashlight Energy Diagram by moving each image to match the form of energy it represents.
Potential Energy
Light Energy
Transfer- to move from one object to another or one place to another
Convert- to change from one type to another
Describe how energy moved through the system. Be sure to include your new vocabulary words where necessary.
Key Concept 4: Nothing creates energy. If something has energy, the energy must have been transferred from something else.
Key Concept 5: Energy can be transferred from one object to another, and energy can be converted from one type to another.
Activity 4- Homework
Complete each scenario by moving each image to match the form of energy it represents. Make sure to COPY (CTRL+C) and PASTE (CTRL+V). Describe how energy moved through the system in the box below the diagram. Be sure to include your new vocabulary words where necessary.
Scenario 1- Power a flashlight with a battery, using energy from the sun as the energy source
light energy
potential energy
light energy
Scenario 2- Power a flashlight with a battery, using energy from fuel (gasoline) as the energy source.
potential energy
potential energy
light energy
Scenario 3- Power a flashlight with a battery, using energy from food as the energy source.
potential energy
kinetic energy
potential energy
light energy
Go back and check that you have answered all questions (written in the blue areas). Then turn in your work on Google Classroom, by 11:59 PM on the day that it is due.
Answer:
activity 2
Explanation:
In the image below, which objects would have a greater gravitational force between them, Objects A and B, or Objects B and C? Give one supporting detail for your answer.
B and c
Its because heavier objects have a higher gravitational force
Answer:
Objects A and B
Explanation:
The Bigger the Object the more gravitational force, there is other thing that effect gravitational force but in this one it is size.
Seed Germination Investigation
The students are to investigate the process of seed germination during their summer
vacation.
They will select different types of seeds, such as beans, peas, or sunflower seeds.
Encourage students to set up a germination experiment by placing the seeds in
different conditions, such as light vs. dark, or wet vs. dry. Moreover, they need to
pot the same seed in more than one pots.
They should observe and document the changes that occur over time, including the
emergence of roots and shoots.
Answer:
Okay...In this case I suggest you use corn seed or beans seed
Explanation:
It should take about 6 weeks to see the Germination, until then continue watering it and giving it sunlight
The seed germination investigation during the students' summer vacation involves selecting various seeds (e.g., beans, peas, sunflower) and setting up an experiment. They will place the seeds in different conditions, like light vs. dark or wet vs. dry, and pot the same seed in multiple pots. Throughout the investigation, the students are expected to carefully observe and document the changes that take place over time, including the growth of roots and shoots. This hands-on approach allows them to gain practical knowledge of seed germination and develop essential scientific skills in observation, data collection, and documentation.
What is the ethical value of using a model organism, such as zebrafish for doing marine research on pathogens?
The organism can prevent diseases from being transmitted from one species to another, thereby reducing fish mortality.
The organism is immune to all diseases, so the effectiveness of new treatments can be studied over long periods of time.
The organism produces chemicals that can be extracted for use as antibiotics, so they are economically important.
The organism shares its physiology with humans, so testing of new drugs can be done without hurting people.
Answer:
The Answer is C
Explanation:
Answer: i think it c
Explanation:
After a bottleneck event, the population of rabbits in an area has significantly decreased. A decade later, the population of the rabbits recovers to its original numbers. Which statement is correct about the rabbits?
They are more likely to survive environmental changes because of the bottleneck event.
They are as likely to survive environmental changes because they survived the bottleneck event.
They are as likely to survive environmental changes because their population has recovered.
They are less likely to survive environmental changes because of the bottleneck event.
Answer: They are less likely to survive environmental changes because of the bottleneck event.
Explanation: There is a lack of genetic variation because of the bottleneck effect, making it harder for the species to adapt to an environmental change.
Lodgepole pine and quaking aspen share a large portion of their distribution ranges in the western US. In an area with both species, after a wildfire which would you expect to become the dominant species in the first 20 years after a fire? Why?
Answer:209
Explanation:becuae the need 20 bro bly
Drag the labels to identify whether each image mainly shows mechanical weathering or chemical weathering. Each label can be used more than once.
We can see here that identifying whether each image mainly shows mechanical weathering or chemical weathering, we have:
Image 1: Chemical weathering.
Image 2: Mechanical weathering.
Image 3: Chemical weathering.
Image 4: Chemical weathering.
What is chemical weathering?The breakdown and alteration of rocks and minerals by chemical reactions with water, gases, and other elements in the environment is known as chemical weathering.
Both the creation of new minerals and the disintegration of old minerals into smaller particles are possible outcomes of chemical weathering.
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Who is Vandana Shiva
Vandana Shiva is an Indian scholar, environmental activist, and author known for her work in the field of environmental sustainability, biodiversity conservation, and social justice. She was born on November 5, 1952, in Dehradun, India. Shiva has a background in physics and earned her Ph.D. in philosophy from the University of Western Ontario, Canada.
Shiva is a prominent advocate for sustainable agriculture, seed sovereignty, and the rights of small-scale farmers. She is known for her opposition to genetically modified organisms (GMOs) and the negative impacts of industrial agriculture on the environment and local communities. Shiva has been involved in grassroots movements and organizations, including Navdanya, which promotes seed conservation and organic farming practices.
Vandana Shiva has authored numerous books, including "Staying Alive: Women, Ecology, and Development," "Earth Democracy: Justice, Sustainability, and Peace," and "Making Peace with the Earth." She has received several awards for her work, including the Right Livelihood Award (Alternative Nobel Prize) in 1993. Shiva continues to be actively involved in raising awareness about sustainable agriculture, biodiversity, and social justice issues on a global scale.
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How do the nitrogen bases in the DNA model pair?
Answer:
The nitrogenous based in DNA are as follows; Adenine (A), Guanine (G), Cytosine (C) and Thymine (T).
Adenine pairs with Thymine (AT) and Cytosine pairs with Guanine (CG):
Here is my doggo also! Your Welcome!
Answer:
it can be grouped as purines adenine guanine pyrimidine cytosine and thymisine these nitrogeneois base are attached to C1' of deoxyribose through glycosibic bond
Which part of a seed acts as the food source for the seed as it grows underground?
roots
seed coat
embryo
endosperm
When the continental crust of one plate and the __________ crust of another plate collide, the denser _______ crust is forced down into the _______.
i need help reasonably defining 10 parts of a cell.
parts of the cell: cell membrane, nucleus, cytoplasm, endoplasmic reticulum, ribosomes, golgi bodies (or golgi apparatus), lysosomes, cytoskeleton, mitochondria, and vacuoles
Muscle is soft tissue. Many elastic fibers make up the muscles. The body has over 600 muscles. Different muscle types have different tasks. Some muscles help you run, jump, and perform delicate tasks like threading a needle. Other muscles enable breathing and food digestion. Your heart is a hard working muscle that beats thousands of times a day. There are three types of muscle tissue in the body. They are:
Skeleton: As part of the musculoskeletal system, these muscles work in concert with bones, tendons and ligaments. Tendons attach skeletal muscles throughout the body to bones. Together they support the weight of the body and aid movement.
You control these voluntary muscles. Some muscle fibers contract rapidly, expending short bursts of energy (fast-twitch). Others move slowly like this: B. Back muscles that help with posture.
Heart: These muscles line the walls of the heart. They help the heart pump blood through the cardiovascular system. They do not control the heart muscle. Your heart tells them when to contract.
Smooth: These muscles line organs such as the bladder, stomach, and intestines. Smooth muscle plays an important role in many body systems, including the female reproductive system, the male reproductive system, the urinary system, and the respiratory system.
These muscle types work without you thinking. They perform important tasks such as moving waste products through the intestines and helping the lungs expand when breathing.
The components of the cell are as follows:
Cell membraneCell wallCell organelles
Nucleolus
Nuclear membrane
Endoplasmic reticulum
Golgi Bodies
Ribosome
Mitochondria
Lysosomes
Chloroplast
Vacuoles
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Which statement is most accurate regarding the effect of decomposition on soil?
A.
Decomposition destroys soil.
B.
Decomposition adds nutrients to soil.
C.
Decomposition contaminates healthy soil.
D.
Decomposition removes oxygen and nitrogen from soil.
Answer: B
Explanation: It doesen't destroy, doesen't remove ooxygen and nitrogen, and it might contaminate healthy soil in some specific things but most likely not so that leaves B and we know when something dies and decomposes the nutrients from the body is spread to the ground, bugs, and other animals.
Explain how cell division is linked to cell theory.
The heart contracts twice for every heartbeat one contraction is the atrial contraction while the other is the venture true or false
Answer:
True. The heart contracts twice per heartbeat. One contraction is the ventricular and the other one is the artrial.
Label the angle of incidence and the angle of reflection in the Figure below.
In the picture, I have highlighted the angle of incidence blue and the angle of reflection red.
hope this helps :)
Angle of incidence refers to the angle between the incident ray and the normal, while angle of reflection represents the angle between the reflected ray and the normal.
Thus, angle of incidence is the angle formed by the incident ray which is the light beam flowing in and the normal which is a line perpendicular to the surface at the point of incidence. The angle of reflection, denoted by the symbol r, is the angle between the normal and the reflected ray of light (the ray of light that bounces off the surface).
The angle of incidence and angle of reflection are equal, according to the law of reflection. The angle at which light reaches a surface and the angle at which it reflects off of it are identical. This fundamental concept describes how light interacts with surfaces, such as mirrors or smooth objects.
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1. What kinds of pollution do you know? Which is the worst? Discuss in group.
2. What are fossil fuels? Give examples. Where are they used? Can they be replaced?
3. Some factories dump waste water in rivers and ocean. How can we prevent this?
4. People throw away tons of garbage everyday. How can we reduce the amount of garbage?
5. Do you drink bottled water? Why or why not? What is its effect on the environment?
pls 3-5 sentence and then explain briefly the answer. ty
Answer:
1. There's air pollution, water pollution, noise pollution, and light pollution. The worst pollution is air pollution because it can cause severe health problems like respiratory diseases or even cancer.
2. Fossil fuels are resources that are formed from the remains of dead plants and animals. An example would be coal, oil, and natural gas. These fuels are used to generate electricity, power vehicles, heat homes and buildings. Yes, there many other energy sources that can replace fossil fuels.
3. One way to prevent factories from dumping waste water in rivers and oceans is to implement stricter regulations and penalties for those who violate them.
4. One of the best ways to reduce the amount of garbage is to reduce, reuse, and recycle.
5. Yes, I drink bottled water because it's more water to drink from a bottle and its effect on the environment is recycling and being reused.
50 POINTS!
Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
How does the orientation of the North Pole change during the year?
Drag and drop the months to correctly match the descriptions.
points away from the sun, so the Northern Hemisphere gets its least sunlight
points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting longer
points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting shorter
points toward the sun, so the Northern Hemisphere gets its most sunlight
December,March,June, or September
(THIS IS SCIENCE NOT BIOLOGY)
The orientation of the North Pole changes as follows during the year:
December: points away from the sun, so the Northern Hemisphere gets its least sunlight.March: points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting longer.June: points toward the sun, so the Northern Hemisphere gets its most sunlight.September: points neither toward nor away from the sun, and the days in the Northern Hemisphere are getting shorter.How does the orientation of the North Pole change during the year?The orientation of the North Pole remains relatively fixed throughout the year. It does not change its position or direction.
The North Pole always points in the same direction in the northern sky, which is towards the North Star or Polaris.
However, the tilt of the Earth's axis in relation to its orbit around the Sun causes the amount of sunlight received by different parts of the Earth to vary throughout the year.
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At ground level, how are rain and hail similar?
They are forms of water in its liquid state.
They occur when the temperature is below freezing.
They can occur when the air is hot and moist.
They are most common in the winter.
At ground level, how are rain and hail similar such as they are
most common in the winter.
What is Precipitation?This is formed as a result of the condensation of atmospheric
water vapor which falls from clouds through gravitational pull.
Rain and Hail are forms of precipitation. Rain falls as liquid
water while hail falls as solid water. In the ground level however
they are both common during winter(cold) periods.
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Answer:
c (if i am wrong truly sorry)
Explanation:
explaintion in case some people need it:
sleet and hail are similar forms of precipitation. However, hail is generally associated with thunderstorms or summer weather conditions and precipitation in the form of sleet is more likely to occur during winter-like weather. Sleet is partly frozen rain, and precipitation in the form of hail is basically ice balls. Graupel is formed from ice-coated snow crystals that fall to the Earth's surface. After falling to the ground, graupel is generally called snow pellets.
How did the Industrial Revolution contribute to global climate change?
A. It led to an increased use of alternative fuels other than fossil fuels.
B. It led to an increased use of coal, oil, and other fossil fuels.
C. It led to the release of chemicals that destroyed the ozone layer.
D. It led to the development of nonrenewable sources of energy. (I think it's B. Please correct me if I'm wrong.)
Answer: You're right its b.
Explanation:
Human activity has rapidly increased the emission of greenhouse gases to the atmosphere. Since the start of the Industrial Revolution, in about 1750, human activities such as burning fossil fuels, including coal and oil, have increased greenhouse gas concentrations in our atmosphere.
Based on these images, what can you say about the tentacles of an octopus and the limbs of a lizard?
Answer: 4
Explanation:
pls answer these three questions: 1. In the northern part of the state of Florida, winters have colder temperatures than the south. How might a plant in the northern part of Florida respond to winter?
a. Grow buds
b. Grow the same
c. Grow less or lose leaves
d. Start to flower or produce fruit
2. When a plant slows down its growth or loses its leaves, which season is it responding to?
a. Fall
b. Spring
c. Summer
d. Winter
3. How do plants in Florida respond to spring?
a. new plants start to grow and sprout.
b. The leaves on trees start to change colors.
c. Plants go dormant, and some lose their leaves.
d. Plants grow a lot and produce flowers and fruit.
subject: sciences
pls help me, I need this rn, thank you!
Answer:
1.) DEPED: Department of Education;
Role: Improving the quality of education
2.) DENR: Department of Environment and National resources;
Role: Conservation, management, and development of the country's environment and natural resources.
3.) DOST: Department of Science and Technology
Role: The executive department of the Philippine Government responsible for the coordination of science and technology-related projects in the Philippines
4.) DSWD: Department of Social Welfare and Development
Role: Develop, implement and coordinate social protection and poverty-reduction solutions for and with the poor, vulnerable, and disadvantaged.
5.)TESDA: Technical Education and Skills Development Authority
Role: The government agency tasked to manage and supervise technical education and skills development in the Philippines.
Explanation:
VERY LATE REPLY, SORRY!!!!
These are just some of the Philippine government agencies that are involved in protecting the environment. There are many other agencies that play a role in this important task.
What are these agencies?Department of Environment and Natural Resources (DENR): The DENR is the lead agency in the formulation and implementation of environmental policies, laws, and regulations. It is also responsible for the management of natural resources, including forests, wildlife, and marine resources.
Department of Science and Technology (DOST): The DOST conducts research on environmental issues and develops technologies to address them. It also provides technical assistance to other government agencies and the private sector in the implementation of environmental programs.
Department of Social Welfare and Development (DSWD): The DSWD provides social services to people affected by environmental disasters. It also provides assistance to communities that are vulnerable to environmental hazards.
Technical Education and Skills Development Authority (TESDA): TESDA trains people in environmental-friendly technologies and practices. It also provides certification to workers in the environmental sector.
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Will mark brainliest
Q:Make a list of different weather patterns (Windy, rainy, sunny, snow, etc.) and the barometric pressure that usually accompanies each of these weather conditions.
Answer I had in answer just like this and I geussed wish could help u
Explanation:
Is an asteroid balanced or unbalanced
Answer:
should be balanced
Explanation:
which kind of soil is likely to have the HIGHEST porosity? A) Soil that is a mixture of sand and clay. B) soil that is all clay. C) soil that is a mixture of silt and clay. D) soil that is all sand.
Explanation:
Sand have the largest particle size so it has the highest porosity.
The answer is Soil that is all sand (D).
Soil that is all sand is likely to have the HIGHEST porosity. Therefore option D is correct.
Porosity refers to the amount of empty space or voids within a soil or rock. It is a measure of how much water or air can be stored in the soil. The type and arrangement of soil particles greatly influence porosity.
Sand particles are relatively large and have larger spaces between them compared to clay or silt particles. This means that sand has a higher porosity because it has more empty spaces or voids that can hold water and air.
The larger particle size allows for better drainage and easier movement of water and air through the soil.
In contrast, clay particles are much smaller and tightly packed together, resulting in smaller spaces between them. This compact arrangement reduces the porosity of clay soils, making it harder for water and air to penetrate and move through the soil.
Soil that is a mixture of sand and clay may have a moderate porosity, as the sand particles contribute to higher porosity while the clay particles reduce it to some extent. Similarly, soil that is a mixture of silt and clay may also have moderate porosity.
Therefore, if we consider the given options, soil that is all sand is likely to have the highest porosity due to the larger particle size and the resulting larger spaces or voids between the sand particles.
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Question
Why is outlining important?
How can you create a blank outline?
This is not Biology Its language arts
Which of the following minerals is the hardest and is a 10 on Mohs scale?
a
Topaz
b
Talc
c
Quartz
d
Diamond