4. What is a Biotic factor that can contribute to an ecosystem?
02
O H20
Fish
CO2
Answer:
fish
Explanation:
Biotic describes a living component of an ecosystem
What percentage of the entire reef did the scientist sample
Answer:
As a result, over 50 percent of the world's coral reefs have died in the last 30 years and up to 90 percent may die within the next century—very few pristine coral reefs still exist.
Explanation:
As a result, over 50 percent of the world's coral reefs have died in the last 30 years and up to 90 percent may die within the next century—very few pristine coral reefs still exist.
What are coral reefs?A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
Coral reefs are massive structures made of limestone deposited by coral polyps. Often referred to as the “rainforests of the sea,” coral reefs support approximately 25 percent of all known marine species.
Coral reefs protect coastlines from storms and erosion, provide jobs for local communities, and offer opportunities for recreation. They are also are a source of food and new medicines. Over half a billion people depend on reefs for food, income, and protection.
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Which scientist was a Navy Officer in World War 2 and used sonar on his battleship to map the ocean floor?
Harry Hess
Abraham Ortelius
Arthur Holmes
Alfred Wegener
Rewrite this sentence to make it true:
Physical changes happen when the molecules and atoms in matter change.
Answer:
Chemical changes happen when the molecules and atoms in matter change
Explanation:
Chemical changes occur when molecules or atoms' bonds are broken or formed
how many parents are involved in asexual reproduction
Answer:
1
Explanation:
Only one parent is needed in asexual reproduction.
Which term best describe the ability of a living system to be restored through secondary ecological succession after a severe disturbance?
resilience
constancy
diversity
inertia
persistence
Answer:
resilience
Explanation:
Ecological resilience is the ability of an ecosystem to be restored through secondary ecological succession after a severe disturbance. i.e. Grassland can burn easily but recover quickly.
Answer:
Resilience: the ability to withstand adversity, destruction and to bounce back, to recover.
Explanation:
I need help with this
Answer:
could you please post a bigger picture of that so i can see the questions
Explanation:
the presence of ___________ chemically distinguishes protein from carbohydrate and fat.
Answer:
Nitrogen
Explanation:
The presence of Nitrogen chemically distinguishes protein from carbohydrate and fat.
what replaces the electrons excited by sunlight in photosystem?
Answer:
To replace the electron in the reaction center, a molecule of water is split. This splitting releases an electron and results in the formation of oxygen (O2) and hydrogen ions (H+) in the thylakoid space.
Explanation:
why is sustainable use of natural resources important? to ensure that natural resources are available for future generations to help make daily life simpler by providing what every person needs to encourage scientists to make new and elaborate discoveries to prevent the exchange of resources from one region to another
Answer:
The correct answer is (a) to ensure that natural resources are available for future generations.
Sustainable development means optimized use of natural resources to meet the demand of people in the present and future scenario. The main aim of sustainable development is to balance our economic, environmental and social needs which allows the prosperity for now and future generations. Sustainability can only be maintained when the resources are used in a way that it meets the need of people, not the greed of people.This is done to ensure that natural resources are available for future generations.
Explanation:
Hope this helps...
The sustainable use is important as it ensure that the natural resources are available for future generations. So, the correct option is A.
What is Sustainable development?Sustainable development is defined as an organizational principle which aims to meet the human development goals while also enabling natural systems to provide essential natural resources and ecosystem services to humans.
The main objective of sustainable development is to balance our economic, environmental and social needs in a way which allows prosperity for present and future generations. The sustainable use is important as it ensure that the natural resources are available for future generations.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Why is sustainable use important?
to ensure that natural resources are available for future generationsto help make daily life simpler by providing what every person needsto encourage scientists to make new and elaborate discoveriesto prevent the exchange of resources from one region to anotherHELP PLS!
What are the nitrogenous bases in RNA? Which pair together?
Answer:
he four bases that make up this code are adenine (A), thymine (T), guanine (G) and cytosine (C). Bases pair off together in a double helix structure, these pairs being A and T, and C and G. RNA doesn't contain thymine bases, replacing them with uracil bases (U), which pair to [tex] {adenine}^{1} [/tex].
Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed
Why does sugar take time to diffuse?
Answer:
A given quantity of solute dissolves faster when it is ground into small particles than if it is in the form of a large chunk because more surface area is exposed.
Answer:
more surface area is exposed
Explanation:
Summarize active transport In your answer consider the direction of transport and any external
energy or special structures that are needed in the process .
Answer:
an area of lower concentration to an area of higher concentration.
ATP
Primary active transport directly uses a source of chemical energy (e.g., ATP) to move molecules across a membrane against their gradient.
the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plant
membrane pumps (such as the sodium-potassium pump) and vesicle transport.
Primary Active Transport.
The Cycle of the Sodium-Potassium Pump.
Generation of a Membrane Potential from the Sodium-Potassium Pump.
Secondary Active Transport.
Sodium Potassium Pump.
Endocytosis.
Exocytosis.
Active Transport.
Explanation:
Moving substances across a cell membrane against their concentration gradient, from an area of lower concentration to a region of greater concentration, is a process known as active transport in cells.
Thus, Active transport uses external energy—typically in the form of ATP (adenosine triphosphate)—to move materials against the concentration gradient as opposed to passive transport, which depends on the natural movement of particles.
Active transport involves the movement of materials across the cell membrane by means of specific membrane proteins called carrier proteins or pumps.
Thus, Moving substances across a cell membrane against their concentration gradient, from an area of lower concentration to a region of greater concentration, is a process known as active transport in cells.
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Which of the following allows an exchange of nutrients and waste material between blood and tissue?
Answer:
b
Explanation:
Nitrogen and phosphorus are referred to as macronutrients because ________. A. they are larger than other nutrients needed by plants B. they are needed by large organisms C. they are required in large amounts for organisms to survive D. they are needed to manufacture large biomolecules E. their cycles have larger reservoirs than those of micronutrients
Macronutrients are all substances that provide energy to the metabolism for optimal functioning, nitrogen and phosphorus are required in large amounts for organisms to survive.
What are macronutrients?It refers to those elements that provide energy to the body, these are proteins, carbohydrates and lipids.
Nitrogen and phosphorus, meanwhile, allow the development of metabolic processes, prevent infections and contribute to growth.
Therefore, we can conclude that the body requires a greater amount of macronutrients than micronutrients, nitrogen and phosphorus are required in large amounts for organisms to survive.
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B. What structures are missing from the root hair cells?
Answer:
The function of root hairs is to collect water and mineral nutrients that are present in the soil and take this solution up through the roots to the rest of the plant. As root hair cells do not carry out photosynthesis, they do not contain chloroplasts.
Explanation:
Mitochondria are missing from root hair cells.
Root hair cells are specialized plant cells found in the roots of plants. Their primary function is to absorb water and minerals from the soil. To achieve efficient absorption, root hair cells have evolved specific structural adaptations.
Root hair cells are elongated and have a large surface area due to their elongated projections called root hairs. This increased surface area enhances their ability to come into contact with the soil, maximizing water and nutrient absorption. However, due to their focus on absorption and their short lifespan, root hair cells exhibit some structural simplifications, such as the absence of certain organelles.
One notable organelle missing from root hair cells is the mitochondria. Mitochondria are the "powerhouses" of cells, responsible for generating energy in the form of ATP through cellular respiration. Since root hair cells are mainly involved in absorption rather than energy production, they have a reduced need for extensive energy generation. As a result, they don't require as many mitochondria as other cells that are highly metabolically active.
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if a star is contracting which force is greater?
Answer:
Before a star reaches the main sequence, the star is contracting and its core is not ... When that happens, the star can no longer hold up against gravity.
: )
How do the
terms polymer and
monomer apply to the structure of
protein molecules?
Tell me an operational definition for each underlined idea. You can do one, but the more you do the more points you get. Thank you!!!
Answer:
Dial Antibacterial Bar Soap.
(first one)
Energizer Ultimate Lithium: The longest-lasting AA battery.
(second one)
Bounty
(third one)
Explanation:
Did I do it right?...
Why is there a limit on the number of trophic levels that can exist within an ecosystem?
What is the name of a species that is the first species to colonize an
area?
Select one:
a. Frontier species
b. Pioneer species
c. Explorer species
d. Pilgrim species
Answer:The answer is b. Pioneer species
Step-by-step explanation; The first species to colonize an area after a major disturbance are called pioneer species; they help to form the new environment. Secondary succession occurs after a disturbance such as a forest fire, where there is still some organic matter to allow new plants to grow.
Describe what part of the virus affects a body system but not all the body systems
Answer:
Explanation:
no
Your first assignment is to find an article talking about a scientific topic. This article can be from a source of your choosing (such as a newspaper or an internet article). You will need to include the article with your assignment. Once you have your article, you will write a short paper identifying two inferences made in this article and the facts the writer used to make these inferences. Then, elaborate on whether the two inferences made by the author are valid or more opinion-based. Be sure to include your reasoning of why you came to this conclusion. Some examples of where you can find articles about scientific topics are:
Answer:
Mahal kitang labis kahit titi mo is to short kantutan tyu Maya aylab u mharr
what part of the brain is responsible for thirst and hunger
Hi there! The part of brain responsible for thirst, hunger, and sleep patterns is known as the hypothalamus.
Have a great day!
approximately how many nucleosomes are required to organize this region of dna into the 10nm fiber structure?
Answer:
Answer is 512 nucleosomes.
Explanation:
DNA is the genetic material that is compressed and stored in the nucleus of the cell. Approximately 512 nucleosomes would be required to organize 92,672 base pairs long region.
What are nucleosomes?Nucleosomes are the packaging units of the genetic material that comprises the DNA segments wrapped along with the histone proteins in a compacted manner. This allows the genetic material to be condensed into smaller volumes.
Given,
Genome size = 92,672 base pairs
Linker DNA = 35 bp
The total number of base pairs = number of base pairs in nucleosome core + linker DNA
= 146 + 35
= 181
The number of nucleosomes can be calculated as:
Nucleosomes = Genome size ÷ total number of base pair
= 92,672 ÷ 181
= 512
Therefore, there are 512 nucleosomes are present in the Drosophila.
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Your question is incomplete, but most probably your full question was, A large gene-containing region of DNA in the fruit fly Drosophila melanogaster is 92,672 base pairs long. The length of linker DNA in Drosophila is 35 base pairs. Approximately how many nucleosomes are required to organize this region of DNA into the 10nm fiber structure?
what are the abiotic and biotic factors for a wolf population living in northern Minnesota
Answer:
hii there
A biotic factor for a grey wolf could be disease or predation, parasites, as long as there is a living thing interacting with your wolves, Abiotic is going to be nonliving things: weather, habitat destruction, wind, the prey cut off by a physical barrier
hope it helps
have a nice day : )
Answer:
The Abiotic factors would be rocks, soil, water, etc. The biotic factors would be the wolf, plants, trees, grass, and other predators and prey.
Explanation:
I hope this helped. Next time, if you could please put a picture, that would be awesome. I hope you make a 100 on whatever you are doing.
PLEASE HELP ASAP I REALLY NEED HELP PLEASEEE 02.08 What's Your Big Idea?
You have previously written the introduction to your compare and contrast article. Now you will write the two body paragraphs to continue your compare and contrast article.
Note: One body paragraph is to compare similar features of both of your two chosen articles, and the other body paragraph is to contrast different features of both of your chosen articles. The body paragraphs are not summaries of each article.
View the grading rubric as you complete your assignment. This is your guide to a super submission.
You have previously written the introduction to your compare and contrast article. Now you will write the two body paragraphs to continue your compare and contrast article.
Be sure to use the information you previously wrote in your Compare and Contrast Organizer.
In your body paragraphs, remember to include:
Topic sentence for each body paragraph that relates to thesis
Support for your topic sentence with facts from your research
Signal phrases to identify ideas that are not your own
One direct quote, correctly punctuated
Transition phrases at the beginning of each paragraph
Technical language to show your understanding of the topic
Body paragraphs that compare and contrast two helpers
Write three or more complete sentences in each paragraph
Write in formal style using the third person point of view.
Use correct grammar, punctuation and spelling.
Add your introduction to the body.
Save your work to your computer or drive.
Submit your work in 02.08 What's Your Big Idea?
If needed, review your chosen articles.
Read the articles.
Article 1-Minutes That Matter
Article 2-Defeating Dragons
Article 3-Food That Fuels
Answer:
To start off, let's discuss how these two heroes are similar. First, these heroes we are talking about are teens. Yes, you heard it here folks these people are in between the age of 14 - 18. They also both help others. For example, Brittany Bergquist and her brother Robbie take time out of their day to provide more talk time for soldiers. On the other hand, team made up of girls and boys help people that need medical assistance 24 hours a day. But most importantly they both enjoy, love, and are amazed by what they are doing.
thats paragraph one youre going to do paragraph 2 yourself because im still working on paragraph 2
Explanation:
The distinguishable between Food that fuels and minutes that matter is one's to benefit soldiers to help communicate with his family while they fight for our country.
On the other hand is to help keep their families warm during the winter for the parents working to make ends meet.
First similarity of these two are that they both used recycled items to solve their problem within their families and meet the needs in their community.
But don't forget about the smart kids that came up with the idea to recycle their belongings to solve the problem and let nothing go to waste.
Another difference is that the solution to the obstacle affected the families and households different because the circumstances were totally opposite and now a family warm while a solider can call home to his family but all with smiles on their faces.
What is Food?Food is a substance consisting essentially of protein, carbohydrate, fat, and other nutrients used in the body of an organism to sustain growth and vital processes and to furnish energy.
The absorption and utilization of food by the body is fundamental to nutrition and is facilitated by digestion.
Plants, which convert solar energy to food by photosynthesis, are the primary food source.
Animals that feed on plants often serve as sources of food for other animals.
What is Fuel?Fuel is a substance that is burned to provide nuclear energy, heat or power.
Materials like coal, wood, oil, or gas can provide heat when burned. Methanol, Gasoline, Diesel, Propane, Natural gas, Hydrogen are types of fuel. Nuclear energy is produced by burning plutonium.
From fuel efficiency or fuel economy, we can measure how long any vehicle could travel, which is the opposite of fuel consumption.
Fuel consumption is the amount of fuel vehicle uses to travel a particular distance.
Fuel efficiency can be measured in kilometers per liter. The efficiency with which the fuel does a conversion of energy is known as fuel efficiency.
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.
how are saturated and unsaturated fatty acids different
Answer:
They are distinct because saturated fatty acids have hydrocarbon chains connected by single bonds solely. Unsaturated fatty acids have one or more double bonds. Each double bond may be in a cis or trans configeration.
Explanation:
are all fungi eukariotic?
