Answer:
An ecosystem consists of a community of organisms together with their physical environment. In ecosystems, both matter and energy are conserved. Energy flows through the system usually from light to heat while matter is recycled.
Explanation:
8.All of the following are simple machines except one. Please select the choice that is NOT a simple machine. A.Wheel and axel B.Screw C.Dish Washer D.Bike
9. We use simple matchines in our daily life.If i use a knife to cut my sandwitch for lunch,_ _ _ _ _ . A. I've used less force and done less work.
B. I've used more force and done more work.
C.I've used less force and done the same amount of work.
D.A knife is not an example of a simple machine.
Answer: Dish Washer
Explanation:
The Yersinia pestis bacteria cause what disease?
O Hantavirus
O Rabies
Plague
Ringworm
Answer:
Plague
Explanation:
The Yersinia Pestis bacteria causes Plague.
Please helppp
due soon!!
I am confusion can someone help?
The recommendation is that 9 year-old children get 11 hours sleep a night.
A telomere from a child that gets 11 hours sleep a night is 8,000 nucleotides long.
How long would you expect a telomere to be in a child that gets 9 hours sleep a night?
Answer:
I believe it would be 6,000
Which of the following does not have an effect on enzyme activity?
Temperature
Amount of oxygen
Number of substrates
Shape of active site
Enzyme activity is based on various factors. Some of these factors are temperature, number of substrates and shape of active site.
What is enzyme activity?Enzyme is a molecule or a chemical that alters the rate of reaction. It can either increase or decrease the reaction rate.
The part of enzyme which binds to the substrate is called active site.
There are many factors that affect the enzyme activity, these are:
Temperature. pH.concentration.Number of the substrate.Shape of the active site.Thus the correct option is b.
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Volcanic eruptions, breathing, decaying dead matter, burning fossil fuels, and warm bodies of water are all carbon examples of which of the following?
A) sources
B) sinks
C) reservoirs
D) all the above
Answer:
the answer is a
Explanation:
Volcanic eruptions, breathing, decaying dead matter, burning fossil fuels, and warm bodies of water are all carbon examples of sources. Therefore, option (A) is correct.
What are sources of carbon?Carbon is one of the most important elements for life on Earth, and it can be found in a variety of sources. Some of the most common sources of carbon include:
Fossil fuels: coal, oil, and natural gas are all made from carbon-based materials that have been buried and transformed over millions of years.Plants: Plants take in carbon dioxide from the atmosphere during photosynthesis and use it to build their tissues.Animals: Animals obtain carbon by eating plants or other animals.The ocean: The ocean contains dissolved carbon dioxide, which can be absorbed by marine organisms and transformed into calcium carbonate, a key component of shells and other structures.Soil: Carbon is stored in soil as organic matter, such as decaying plant and animal material.The atmosphere: Carbon is present in the form of carbon dioxide, methane, and other gases in the atmosphereLearn more about carbon sources, here:
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In fission, how does the DNA of the daughter cells compare to the DNA of the parent cells?
It is exactly the same
It is different due to meiosis
It it mostly the same with slight changes
It is better than the parent DNA
Answer: It is exactly the same!
In fission, the DNA of the daughter cells compared to the DNA of the parent cells will be exactly the same. The correct option is A.
What do you mean by a parent cell and a daughter cell?The cell that divides to produce two daughter cells is known as the mother or parent cell in the process of cell division. Mitosis produces two offspring cells that are genetically identical to the mother cell. We are all alive now due to a process known as mitosis.
Mitosis is the process through which a single cell divides into two new, identical cells. The initial cell is known as the parent cell, while the newly created cells are known as the daughter cells.
The daughter cell is exactly identical to the mother cell, that's why the DNA will also be the same in both cells.
Therefore, the correct option is A. It is exactly the same.
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1 p
Which organelle is paired with its correct function? *
Chloroplast - holds genetic information in the cell
O
Mitochondria - creates energy for use by the cell
Nucleus - allows certain substances to enter the cell, and keeps other substances
out
Ribosome - removes waste from the cell
What will most likely happen if a sound wave moves from the air through a solid?
It will increase in wavelength.
It will decrease in speed
It will increase in speed
It will decrease in wavelength.
lark this and not
Answer:
decrease in speed is the answer
Look at sucrose, a disaccharide, and cellulose, a polysaccharide, on the carbohydrate page. How do you think these two molecules were formed?
help please
Explanation:
Glucose and fructose are joined to form sucrose.
Cellulose is a polymer of glucose.
Monomers of sucrose and cellulose are joined by glycosidic bond to form disaccharides and polysaccharides respectively.
What statement is true about vines in the rainforest biome?
A) They grab onto several trees to gain access to sunlight.
B) They keep the structure of the canopy intact.
C) They can grow up to 3,000 ft long.
D) All of the above
PLS HELP ASAP
Answer:
D
Explanation:
Hope this helps you complete your question :)
6 ways of expressing standard atmospheric pressure(physical science)
6 ways of expressing standard atmospheric pressure include: millimetres (or inches) of mercury, pounds per square inch (psi), dynes per square centimetre, millibars (mb), standard atmospheres, and kilopascals.
Which of these is not true for the crust?
Group of answer choices
You can dig through it
It's split into plates
It's the thinnest layer of the earth
It's made of granite and basalt
pls i need help it’s a test!
Answer:
I guess the answer is d ......
which characteristic of a living organisms is responsible for the production of oxygen in the leaf of plant exposed to sunlight
Answer: i got a better question
Explanation: how about asking why are cheating here lol:)
Why is energy transformed from one form to others?
Answer:
Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy. While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation.
A lake has very deep water at the bottom, in the benthic zone. Why is it more difficult for plants to live in the benthic zone of this lake than in the limnetic zone
Answer:
See the answer below
Explanation:
It is quite difficult for plants to survive in the benthic zone due to the limited penetration of light in the zone when compared to the limnetic zone. The limnetic zone is a well-lit area of a lake or pond while the benthic zone represents an area around the bottom of any water body - marine or freshwater.
Light is an important factor for plants because the light is necessary for photosynthesis - a process through which plants get their foods. Hence, due to limited light in the benthic zone as opposed to the limnetic zone, plants would find it easier to survive in the latter compared to the former.
____ are unicellular organisms with no nucleus that can cause diseases and pain with toxins.
word bank: protists, antibiotics, infectious, bacteria, pathogen, viruses, fungi, vector, vaccine.
NEED ANSWER ASAP. Individuals with advantageous traits for their environment have a better chance of surviving
than those with less helpful traits. Explain how this is demonstrated in the moth information
above. Use specific information and examples.
Answer:
The moth with camoflauged skin will have a better chance of surviving because it will be harder for predators to see them.
Explanation:
Sorry but I can't quote anything because I don't have the book.
Entomologists are scientists who Study insects and their life cycles in a systematic manner to
helps us better understand their impact on the world.
TRUE
FALSE
The small size of cells _____.
1.allows for fewer cell organelles
2.causes food to be broken down slowly
3.allows for efficient transport of materials
50 years ago people were much more willing to get vaccines for diseases like polio, measles, and pertussis. Why are people more afraid to get them today?
People are more afraid to get them today because of the side affects they might cause.
how do you improve your mental health
Answer:
Talk about your feelings. Talking about your feelings can help you stay in good mental health and deal with times when you feel troubled.
Keep active.
Eat well.
Drink sensibly.
Keep in touch.
Ask for help.
Take a break.
Do something you're good at.
Explanation:
4. I need help with this question
Answer:
F
Explanation:
Moving ridges of water on the surface of the ocean caused by wind and constantly cause weathering along the shoreline. *
Answer:
Waves
Explanation:
Waves are moving bodies of water that crash against the shore and cause erosion.
What waste (gas) does the repiratory system remove from the body?
A. Oxygen
B. Water
C. Carbon Dioxide
i’ll mark brainliest
how do organisms with many cell types develop from a single cell
Answer:
A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs.During development, cells use both intrinsic, or inherited, information and extrinsic signals from neighbors to "decide on" their behavior and identity.
define thigmotropism, phototropism, and gravitropism and give an example of each
Answer:
a) Thigmotropism
b) Phototropism
c) Gravitropism
Explanation:
A) the turning or bending of a plant or other organism in response to a touch stimulus. example: the folding movement of the Mimosa pudica leaflets, can be considered as an example of thigmonastism.
B) the orientation of a plant or other organism in response to light, either towards the source of light ( positive phototropism ) or away from it ( negative phototropism ).example: Sunflower is a highly phototropic plant. They grow towards the sun and are also seen tracking the movement of the sun throughout the day. That is, the flower keeps changing its direction with the movement of the sun. Sunflower requires more light for its growth and survival.
C) The gravity-directed growth process, called gravitropism, dictates upward shoot growth to ensure a proper positioning of the leaves for efficient photosynthesis and gas exchange. example: tree has fallen over and due to gravitropism exhibits this arched growth.
Mendel came up with two principles? True False
Give an example of exaptation in humans.
Answer:
As an example of an exaptation, Gould (1991) used the large size of the human brain and its function of enabling humans to produce speech. The large brain size, according to his argument, originally arose as an adaptation for some (unspecified) functions in humans' ancestral past ( Gould, 1991 ).
Explanation:
Many weeds that never previously existed in Canada were brought over by early European settlers who started wheat farming in the prairies. This is an example of
Answer: Introduced species or exotic species
Explanation:
The introduced species is also called as an exotic species. The exotic species is a species which is not native to a particular location or area but is introduced by humans either accidentally or with the desired species. Such species can be invasive means, it can compete with the native species for resources and can reduce the population of native species.
The given situation is an example of introduction of new species. The weeds are introduced exotic species which could have come along with the desired variety of wheat required for farming in the prairies.