Answer:
organisms create the food from which all other subsequent levels of the food chain get their food, and because they generate the food by the direct conversions of solar energy they are considered the primary food producers for a biosystem. Therefore, plants are considered the primary producers. Approved by eNotes Editorial Team
Explanation:
Answer:
Primary producers make their own food. Examples are organisms like plants and algae. Primary producers serve as food sources for primary consumers, which are organisms that eat producers, such as cows.
Plz help I need help
Answer:
cell wall is absent in
human
butterfly
shark
What did Louis Pasteur's experiment contribute to cell theory?
Answer:
D) The proof that cells only come from other cells
Explanation:
I took the test and got 100%
Developing and using models, making observations, and using mathematics apply to
a. science only.
b. engineering only.
c. both science and engineering.
d. neither science nor engineering.
Which term describes a type of organism whose cells contain a nucleus and specialized membrane-bound organelles?
Answer:
A eukaryote is any organism whose cells have a cell nucleus and other organelles enclosed within membranes. any of a number of organized or specialized structures within a living cell.
Explanation:
Oxygen's atomic number is 8 and it's mass number is 16. How many protons, neutrons, and electrons does oxygen have?
Answer:
Protons: 8
Neutrons: 8
Electrons: 8
Explanation:
Atomic number is the amount of protons
Mass - Atomic number = Neutrons
Same amount of electrons and protons to balance charges
Explain the term “soil profile” (needs to be a paragraph)
Answer:
A soil profile is a vertical section of soil
Explanation:
Why are surfaces for muscle attachment rough?
Answer:
rough surfaces provides greater surface area for attachment
I need help pin this question
Answer:
negative feed back
Explanation:
it gives sweat and causes bad acne
4. What is population density?
Answer:
The amount of living organisms in a set area, usually humans. Like the maps that show purple is no people red is lots of people.
Answer:
Population density is the number of individuals per unit geographic area, for example, number per square meter, per hectare, or per square kilometer.
Explanation:
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What is the significance of extra atmospheric carbon dioxide in the earths earth's atmosphere
Answer:
Extra Carbon Dioxide in the atmosphere increases the temperature on Earth.
Explanation:
Carbon Dioxide is a greenhouse gas so when there is increasing Carbon Dioxide we see the greenhouse effect.
In the picture down below is my question
Answer:
The answer is Telophase
Note on chemical communication in insects in general
Answer:
Chemical communication plays an important part in the lives of insects, and particularly in lives of those that live in groups or social organizations. Aggregation pheromones are designed to bring individuals together into groups which may be temporary in sub-social insects, or permanent in social insects.
Explanation:
HURRY PLS
A student observes a plant cell and an animal cell under a microscope. he records the following observations.
Answer:
I think it's A.
Explanation:
If you look at the chart, responses to water loss or gain doesn't change the plant cell at all. But if you look at the animal cell, if it gains or loses water, it shrinks or increases in size depending on what happened. Plus, I think it's really the only answer choice that makes sense given the whole table and then looking at the other answers that don't really fit in with the descriptions.
Answer: its a
Explanation:
7-What is the dire prediction for the Cavendish banana in the future?
Answer: It's very vulnerable
Explanation:
The Cavendish is susceptible to a deadly fungus called Tropical Race 4/Panama Disease, they are sterile (so that means they are all clones of each other), and clones are especially susceptible to disease.
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Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?
The shape of the coal changes.
Oxygen is present.
A new substance is produced.
Coal is made up of more than one element.
Question
Cocaine, amphetamine, and MDMA are all central nervous ________ that agonize dopamine neurotransmission.
Cocaine, amphetamine, and MDMA are all central nervous stimulants that agonize dopamine neurotransmission.
How do these stimulants affect the central nervous system?Cocaine, amphetamines, caffeine, nicotine, and MDMA (ecstasy) all cause the nervous system to become more active.
In biology and medicine, chemicals that hasten the transmission of messages between nerve cells are referred to as stimulant drugs. These chemicals include caffeine, nicotine, cocaine, and ecstasy.
Dopamine accumulates excessively between nerve cells as a result of cocaine's ability to stop it from being recycled. The high from cocaine is eventually brought on by this dopamine overflow, which interferes with regular brain activity.
Therefore, stimulant medicines have the ability to speed up the rate at which messages are transferred inside the nervous system.
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How do enzymes affect the reactions in living cells?
Answer:
enzymes speed up the reaction
Explanation:
Enzymes increase the rate of biochemical reactions by reducing the amount of activation energy needed for reactants to start reacting.
Answer:
Activation energy decreases.
Explanation:
The way enzymes work is by lowering the activation energy required for reactions to take place within living cells.
When cells divide they make two ____ cells.
A- daughter
B- son
C- dad
D- mom
Answer:
A.) daughter cells
Explanation:
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Answer:
the correct answer would actually be mom or parent cell
Explanation:
mitosis is a process of nuclear division in eukaryotic cell that occurs when a parent cell divides to produce two identical daughter cells during cell division mitosis refers specifically to the separation of the duplicated genetic material carried in the nucleus
what is the difference between primary and secondary active trnsport
Answer:
In primary active transport, the energy is gotten directly from the breakdown of ATP. In the secondary active transport, the energy is gotten secondarily from energy that has been stored in the form of ionic concentration differences between the two sides of a membrane
Select all that is true about the ocean floor.
A)We know more about Mars and the Moon that we do about the ocean floor.
B)The ocean floor is relatively flat and featureless. C)The goal is to have the entire ocean floor mapped by 2030.
D)We use sonar and satellites to map the ocean floor.
E) Although there are mountain ranges underwater, they are not as tall as ones in the United States.
Answer:
A,B and D
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Recall that matter is neither created nor destroyed; but it can
Answer:
transform or changed
Explanation:
you can change matter from one stay to the next but you cant actually create it or completely destroy it
a hydrogen atom shares electrons with an oxygen atom in water molecule forming a strong
Answer: Covalent Bond
Explanation: A covalent bond occurs when electrons are shared between two atoms, in this case the hydrogen atom is sharing an electron with the oxygen atom, creating a strong covalent bond.
I hope this helps!
Carbon dioxide is released as a byproduct of cellular respiration. Which one of these products is also formed during the metabolic reaction of cellular respiration? (B.9B)
Question 16 options:
Water
Glucose
Sucrose
Oxygen
The product that is also formed apart from the carbon dioxide during the cellular respiration process is water. The correct option is A.
What is cellular respiration?Cellular respiration is the process by which biological fuels are oxidized in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy, which is then used to drive ATP production.
Cellular respiration is the process by which cells in plants and animals convert sugar into energy, which is then used to perform cellular work.
The goal of cellular respiration is straightforward is that it provides cells with the energy they require to function.
Carbon dioxide and water are the byproducts of cellular respiration. Carbon dioxide is exhaled from your lungs after being transported from your mitochondria to your red blood cells. ATP is produced during the process.
Thus, the correct option is A.
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match each muscle of the arm with the correct label
Answer: 1 - Brachialis 2 - Brachioradialis 3- Pronator teres 4 - Palmaris Longus 5 - Extensor carpi radialis 6 - Extensor digitorum
Explanation:
The correct match of the muscles has been stated below and these are as follows:
1 - Brachialis, 2 - Brachioradialis, 3- Pronator teres, 4 - Palmaris Longus, 5 - Extensor carpi radialis, 6 - Extensor digitorum.
What is muscle?Muscle is defined as the group of the tissue and contraction has been defined as an action potential travels along the nerves to the muscle. The beginning of the muscle contraction which has been occurs with the signal generated from the nervous system.There are generally two types of the muscle contraction and the situation occur when the muscle contracts and the change in the size takes place.
Isotonic concentric contraction h been known as the type of muscle contraction in which muscle has been shortening takes place. Isotonic eccentric contraction has been the type of the muscle contraction in which the muscle lengthening whilst it is under tension.
Therefore, 1 - Brachialis, 2 - Brachioradialis, 3- Pronator teres, 4 - Palmaris Longus, 5 - Extensor carpi radialis, 6 - Extensor digitorum.
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How does anesthesia work?
The cactus wren bird
build its nests in the
cholla cactus to help
keep its babies away
from harm. This gids
the cactus wren but
does not harm the
cactus plant.
Which symbiotic relationship is described above?
Parasitism
Mutualism
Commensalism
Coevolution
Answer:
Commensalism
Explanation:
the wren bird is benefiting but the cactus not benefiting and it isn't being harmed at all
Which of these is the smallest?
cells
atoms
molecules
cell membranes
Answer:
The correct answer is atoms :)
Explanation:
atoms are most likely the correct answer considering that they are so small that they will never touch anything.
What types of organisms do alcohol fermentation ? Summarize this process,
Answer:Two kinds of organisms can do alcohol fermentation: bacteria and yeast (yeast, by the way, are fungi). Humans “use” alcohol fermentation in another way, co-opting it to make bread, beer, and wine.
Explanation: i took the test
*80 POINTS PLEASE HELP
The unit discusses and defines hydrostatic pressure. Explain what hydrostatic pressure is and how this term relates to Néry’s talk.
Explain what the term “blood shift” means and how it works.
Describe what happens when Néry falls below 80 meters in depth. How must Néry react in order to survive, and even enjoy, falling to such depths?
Néry describes many aspects of the entire experience of free diving that he finds appealing. What aspect of the free-diving experience that Néry describes appeals to you most? Why?
Answer:
Answer: Raymond Wang: How germs travel on planes – and how we can stop them
1. After completing the unit and watching the video, explain how the unit about oceans and the video about germs on a plane relate?
In his video Raymond explains how the diseases are transmitted through planes from one country to another and the difficulties faced to prevent the spread of diseases due to the air circulation in the planes. It is always difficult to screen the person with disease and prevent them from getting into the plane since the air circulates in the conventional cabins. When a person sneezes, the air will get swirled multiple times and spread the disease.
2. Using examples from the video, explain why it is difficult to keep people who are sick off of planes.
It’s difficult to pre-screen for diseases. When someone goes on a plane, they could be sick and actually be in this latency period in which they could have the disease but not exhibit any symptoms and could possibly spread the disease to many other people.
3. How does Wang illustrate what happens in a conventional airplane cabin when someone sneezes?
He illustrates how the air is just being circulated throughout the plane. When someone sneezes, the air is just being circulated into the air. This means that everyone on that plane has breathed in that person’s sneeze because it’s such a compact place.
Answer:
4.
Explanation:
Describe Wang’s solution for easily preventing the spread of disease on airplanes? What does “flow,” a word seen in the unit, have to do with his solution? The thing he made to prevent people from getting sneezes in their face is by making the bacteria flow straight towards the filters, so no one gets the bacteria in their faces.