Answer:
1. False
2. True
3. True
Explanation:
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i need help asap please!!
Answer:
commensalism
an association between organisms in which one benefits and the other derives nor harm
What is marine habitat and its characteristics
Refer to the attachment
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Answer:
Melanin is responsible for black colour of hair.
Explanation:
Hair is black in colour because it is determined by the amount of a pigment present in hair is called melanin. If eumelanin which is a type of melanin, present in hair, it gives people black or brown hair. If the receptor is not activated or is blocked in the hair, then melanocytes make pheomelanin instead of eumelanin and then the black or brown hair colour did not occurs so we can conclude that melanin is responsible for black colour of hair.
What I Have Learned
Directions: Complete the statements in the paragraph by writing the appropriate
words in the box. Refer to the word box below. Write your answers in your science
activity notebook.
the part where no. 13 is isn't shown so I'll just type it.
Pollution in air, water and soil is the result of these changes, Eventually, causing harm and (13) ______ to living things.
please kindly answer these.
Answer:
Air pollution can significantly hurt the quality of soil and water resources. When we pollute our air, we are also polluting the precipitation that falls into water bodies and soils.
Identify the two main gases that are exchanged between the respiratory
and circulatory systems.
Answer:
Oxygen and Carbon Dioxide
Explanation:
Some of the organic material manufactured in the estuarine communities is exported to other ecosystems. What type of ecosystems receive this material
Answer:
Coastal and open-water ecosystems
Explanation:
Organic material manufactured in estuarine communities is exported to coastal and open water ecosystems. This organic material is very beneficial to these ecosystems as it allows many nutrients to float in the changing tides. These nutrients are a very rich food source for coral reefs and kelp forests. Furthermore, these nutrients arrive in the ecosystem in the form of debris that can serve as breeding grounds for very important organisms in the region and that serve to maintain the food chain.
list 10 uses of radiation
Answer:
Security
Space Exploration
Measurement
Sterilization/Irradiation
Carbon Dating
Promoting Genetic Mutation
Clean Air
Smoke Detectors
nuclear medication
x-rays
Explanation:
MEU NOME E ADRIELLY akskdkkdkdkdkddoififejdifkfkek
Answer:
brainliest!?
Explanation:
PLZ HELP ME
electromagnetism is the interaction between _______ and ________
A) Kinetic energy and thermal energy
B) electricity and magnetism
C) North pole and south pole
D) Magnets and light waves
Answer:
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles. ... At high energy, the weak force and electromagnetic force are unified as a single electroweak force.
Explanation:
Are chicken nuggets more like a taco or a hamburger?!?!?! I NEED TO KNOW!!!!!!!!!!!!!
Answer:
HAMBURGER???
Explanation:
Answer:
hamburger
Explanation:
¿Cuál es la función principal de la membrana plasmática?
a) Protección
b) Transporte de sustancias
c) Da forma a la célula
d) Síntesis de proteínas
It takes 100 N to move a box 10 meters in 5 seconds. How much power is
required?
O A 200 W
O B. 5,000 W
C. 1.000 W
O D. 20 W
Role of liver in carbohydrate metabolism.
Answer:
In the metabolism of carbohydrates, the liver helps to ensure that the level of sugar in your blood (blood glucose) stays constant. If your blood sugar levels increase, for example after a meal, the liver removes sugar from blood supplied by the portal vein and stores it in the form of glycogen.
Explanation:
Why is it helpful that fungi attack and kill other parasitic organisms?
Answer:
it benefits the thing or area it lives on?
When killing other parasitic organisms, that parasite is no longer feeding on it's host.
Explain the concept of natural selection using moths as an example.
Neptune
?
It is sometimes farther
from the sun than Pluto.
Jupiter
?
It has seasons that last 20
years.
Uranus
?
It has the "Shepherd
Moons."
Saturn
?
It is the largest gas giant.
Answer:
Neptune is sometimes farther
Uranus has seasons that last 20 years
Saturn has shepherd moons
Jupiter is the largest gas giant
Explanation:
They're probably correct but check
The organized set of rules to sign names to chemical compounds is alles
A Binary compounds
B. Elemental nomendaure
C. Chemical nomendature
D. Stock system
Answer:
B. chemical nomenclature is your answer
A scientist helps a colleague do a better experiment by:
Answer:
Have a nice day
Explanation:
A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful.
Which geologic structure will most likely take the longest time to form?
1. A fault
2. A sinkhole
3. A river meander
4. A mountain range
it should be a river mender
Which of the following best describes the producers in a terrestrial food web?
a- They convert energy from the sun to chemical energy.
b- They are at the top of the energy pyramid.
c- They are unaffected by decomposers.
d- They obtain their energy from consumers.
Answer:
The correct answer is - a- They convert energy from the sun to chemical energy.
Explanation:
Producers in any food web or ecosystem are the organism that can produce the food and energy on their own. Normally these organisms are green plants that can perform photosynthesis in order to produce chemical energy from light energy that comes from the sun.
Producers not only provide food and energy to themselves but also provide food and energy to each trophic level directly or indirectly. Producers are present at the base of the energy pyramid.
Super saturated solutions are used to make rock candy. Please describe how the crystals are formed, be sure to use the terms Solute and Solvent.
Answer:
Once the solution cools, it now has more solute than it normally could have, and this is called a supersaturated solution. Once a solution becomes supersaturated, it wants to crystallize the excess solute. The solute will form crystals on any surface. In our case the surface is a string, and we are using a lifesaver candy as our “seed.”
Explanation:
Rock candy is a type of candy made by growing sugar crystals on a string or stick.
Why are Super saturated solutions used?Super saturated solutions are often used to make rock candy because they contain more solute (sugar) than the solvent (water) can normally dissolve at a given temperature.
The first step in making rock candy is to heat water in a saucepan and add sugar to it. The sugar dissolves and forms a solution as the water heats up. After that, the solution is heated until it is completely saturated.
This occurs because the super saturated solution is unstable, and the excess solute (sugar) in the solution wants to escape and form crystals.
As time passes, more sugar dissolves from the solution and adheres to the crystals on the string or stick, causing them to grow larger.
The process is repeated until the crystals reach the desired size or until all of the excess solute has been removed from the solution.
Thus, preparing a super saturated solution of sugar and water, then dipping a string or stick into the solution and allowing the excess solute to come out of the solution and form crystals on the string or stick, is the process of making rock candy.
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please explain why the gastric glands secret pepsinogen and not pepsin
Answer:
The correct answer is - to protect the cells of these secretory glands from pepsin.
Explanation:
Pepsinogen is an inactive form of enzyme pepsin that is released by specific cells called chief cells within the gastric lining Releasing the inactive form of pepsin in preventing the auto-digestion of protective proteins and the cells of these secretory glands in the lining of the digestive tract.
Pepsinogen is activated by acidic pH to pepsin of the stomach lumen and the cell lining of the stomach is protected by mucus lining.
Which of the following statements about the energy needs of cells is false?
1. The most usable energy for cells comes from the rapid combustion of glucose
2. Many cellular reactions have an associated activation energy
3. The laws of thermodynamics force cells to acquire energy
4. Without a continuous input of energy, cell disorder will increase
Answer:
A the most usable energy for cells comes from the rapid combustion of glucose
The statement 'the most usable energy for cells comes from the rapid combustion of glucose' is FALSE (Option 1).
Glucose is a simple carbohydrate that provides a rapid energy source to the cells.In animals, glucose is used to produce glycogen, which is a complex carbohydrate that provides a long-term source of energy.All metabolic reactions in a cell depend on the presence of activation energy, which generally is provided by ATP, the energy coin of the cell.In conclusion, the statement 'the most usable energy for cells comes from the rapid combustion of glucose' is FALSE (Option 1).
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Which two formulas represent compounds?
O A. H2
O B. HCI
O C. Ag
O D. Naci
Answer:
B and D
A.its a gas not a compound
C.silver is an element
a compound is made up of two elements
Which statement best provides evidence that the substance is a mutagen
Answer:
The cells change after being exposed to the chemical, and this change is passed to the next generation of cells.
Need help please and thanks
Answer:
B
Explanation:
Hope this helpful for you
which stable element is used to determine the age of volcano rock
Select the correct anter
Which set of proteins assist in the process of adding amino acids one by one to the growingamine and chain during transfer
Initiation factors
B. Elongation factors
C. Release factors
Answer:
b
Explanation:
Which layers form Earth’s rigid, mobile tectonic plates?
crust and uppermost mantle
inner and outer core
crust and lower mantle
upper and lower mantle
Which of the following is an organism whose cells each contain a membrane
bound nucleus?
Answer:
D. Eukaryote
Explanation:
An organism that has membrane-bound organelles will have more complex organelles like mitochondria, Golgi apparatus, and ER. These are known as Eukaryotes. Additionally, they will have a nucleus that has the DNA coiled inside. Prokaryotes do not have membrane-bound organelle and the DNA floats in the cytoplasm. Most plants and animals are eukaryotes and all multicellular organisms are too.