Answer:
test tube holder is used to hold test tubes. It is used for holding a test tube in place when the tube is hot or should not be touched. For example, a test tube holder can be used to hold a test tube while it is being heated.
How much water would have to be displaced for the Lucia to float?
Living things obtain matter from their environment and release waste back into it. This matter moves in a cycle. Plants use air, water, nutrients, and sunlight to make food and grow. Some animals eat the plants and use their matter to grow. When those animals die, decomposers will grow using the matter from the animals' bodies. The decomposers release this digested matter back into the air and soil. The matter in an ecosystem is recycled. Gases are a type of matter that moves through an ecosystem. For example, oxygen and carbon dioxide are cycled between organisms and the air. The producer in the diagram takes carbon dioxide from the air. It uses this gas and water to make sugar, releasing oxygen as waste. Then the consumer breathes in the oxygen and uses it in its body. It also eats the producer for food, represented as carbon in the diagram. The decomposer takes oxygen from the air and food from the consumer or producer. The consumer and decomposer make carbon dioxide, putting it into the air. When producers use it again, the matter is recycled. Describe in words how carbon and oxygen move through an ecosystem. (my little bro needs help and I am to lazy to do it)
Answer:
"living things obtain matter from their environment and release waste back". plants use carbon dioxide, then let out oxygen for us to use. When animals die, decomposers release the digested matter back into the air and soil. Different types of gases move throughout a ecosystem and is recycled between organisms and air. (again going back to the air recycled between a plant and a human).
Answer:
the decomposers release carbon dioxide that help plans grow then they can do photosynthesis then the oxygen is given to animals then they die then decompose and that's a cycle
Explanation:
What causes the phases of the Moon?
The moon's light and its rotation on its axis.
The moon's revolution and its projected light.
The reflected light of the sun and the moon's revolution around Earth.
The revolution of the Earth around the Sun.
Are all animals that share a food source classified in the same trophic level
ANSWER QUICK PLEASE!!!
Answer:
it depends on the food web that the animal is on but they can sometimes
Explanation:
Answer:
An organism may not always occupy the same trophic level, depending on the food web. Assigning organisms to trophic levels isn't always clear-cut. For instance, humans are omnivores, meaning they can eat both plants and animals. So they may be considered both primary and secondary (or even higher!)
Explanation:
What helped Mendel with his ability to keep detailed and accurate data in his experiments?
-He was a monk and had very little distractions.
-He was a scientist and understood how to keep god records.
-He had an extensive mathematical background and was very good at statistical data.
-He was a good writer and keep accurate records of his experiments.
Answer:
C
Explanation:
I believe he was very good at mathematics
How does energy transfer happen?
How would extra carbon dioxide
in a lake be removed?

Answer:
Carbon dioxide in a lake can be removed by chemical treatment using liming agents such as sodium carbonate or hydrated lime and quicklime. These liming agents react with carbon dioxide and reduces carbon dioxide and increases the pH and alkanity of the lake
Explanation:
Plants exchange carbon dioxide, water, and oxygen with their surrounding environment through openings in their called O A. leaves, stomata B. stems, sori OC leaves, xylem D. roots, guard cells
To fell things you need energy True or false
Answer:
false
Explanation:
Answer:
Yes, you use energy to feel things becasue you move your muscles
Explanation:
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In recent scientific history, the classification of the protist kingdom has changed several times. They are now grouped to consider their development over time instead of simply by what they look like or how they move. Which statement best describes the reason for these classification changes?
A. Traditional scientists did not have enough information about protists to attempt to clasify them.
B. Originally, scientists drew inaccurate conclusions about the classification of protists based on flawed data.
C. Changes in classification of this kingdom are made each time modern scientists discover a new species of protists.
D. The classification of protists changes as scientists learn more about how these organisms are related to each other and to members of other kingdoms.
Answer:
D
Explanation:
The statement that best describes the reason for these classification changes is the classification of protists changes as scientists learn more about how these organisms are related to each other and to members of other kingdoms. The correct option is D.
What are the characters of the protist kingdom?All eukaryotes that are not fungi, animals, or plants are collectively referred to as protozoa. It is a tremendously diverse group of species as a result.
Beyond a rather straightforward organizational structure, the eukaryotes that make up this kingdom, Kingdom Protista, do not share many characteristics.
Therefore, the correct option is D. The classification of protists changes as scientists learn more about how these organisms are related to each other and to members of other kingdoms.
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Where are chromosomes located during metaphase?
A
outside the cell membrane
B
on opposite sides of the cell
C
lined up along the center of the cell
D
spread around the edges of the cell
Answer:
C
Explanation:
In metaphase, the chromosomes are lined up along the center, or equatorial plate, of the cell and each sister chromatid faces opposite poles.
If purple flowers are dominant in a plant and white flowers are recessive in that plant, then when purple-flowered
plants with two dominant genes are mated with white-flowered plants with two recessive genes, the first
generation of offspring should have
A
100% white flowers
B
75% purple flowers and 25% white flowers
с
50% purple flowers and 50% white flowers
D
100% purple flowers
im pretty sure it would be c
If purple-flowered plants with two dominant genes are mated with white-flowered plants with two recessive genes, the first generation of offspring should have 100% purple flowers.
Genes are defined as units of inheritance that occur in the chromosomes. Usually, genes occur in pairs called alleles and these alleles control the expressed traits (phenotype) of an organism.
In this case, we have a flowering plant having a dominant gene for purple flowers (R) and a recessive gene for white flowers (r). Using a punnet square, we can see that the first generation will have all purple flowers since it is the dominant gene as shown.
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Fill in the blank with the correct word.
A substance that is produced by a plant that affects how it grows and develops is called a
.
Answer:
A substance that is produced by a plant that affects how it grows and develops is called a hormone.
have a nice day ;)
A substance that is produced by a plant that affects how it grows and develops is called a hormone.
What is a hormone?Hormones are your body's chemical messengers. They travel in your bloodstream to tissues or organs.
They work slowly, over time, and affect many different processes, including growth and development, metabolism, maintaining body temperature, and regulating mood and cognitive functions.
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what is the S.I unit of speed , time
Answer:
Second!
Explanation:
speed and velocity are both measured using the same units.The S.I unit of distance and displacement is the meter. The S.I unit of time is the second. The S.I unit of speed and velocity is the ratio of two-the meter per second!
I hope it's helpful!
Answer:
metre per second
Speed has the dimensions of distance divided by time. The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour or, in the US and the UK, miles per hour.
Explanation:
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How important do you think it is for you personally to avoid coronavirus infection? EXPLAIN YOUR ANSWER PLS .
Answer:
I think it is extremely important to avoid personally getting the virus
Explanation:
I love visiting my grandparents, and while I have a huge chance of fighting it off, it could take my grandparents lives. As well as anybody else I meet. Its not about me. its about everyone.
Describe the difference between codominance and incomplete dominance. Give 1 example of each.
What part of speech is the word mission in the sentence below?
My mission was to get the cat out of the tree safely.
noun
verb
adverb
adjective
Which atoms have a higher electronegativity?
is it true The more I interact with someone the more likely it is I’ll like that person?
Answer: it depends
Explanation:
if you interact with them more, you get to know them. If you find them annoying or mean, then you will dislike them. But if the person yo are interacting is bery friendly and nice, you will most likely like that person. If thenperson you are interacting is hot and cute, then will have a crush on that person.
Ocean salinity varies from place to place due to differing conditions in the environment
-true
-false
Ocean salinity varies from place to place due to differing conditions in the environment is a true statement.
How ocean salinity varies?It is not evenly distributed, but it does change temporarily and spatially with the oceans and seas.
This variation is both horizontally and vertically distributed; horizontal distribution refers to salinity changes at the ocean's surface level and vertical distribution, to salinity changes as the ocean's depth.
Several variables influence ocean salinity. They are global warming, evaporation, rainfall, river water input, ocean currents, atmospheric pressure, and wind direction. Oceans and seas have a 35 average salinity.
Therefore, It is not evenly distributed, although it does change momentarily and spatially with the oceans and seas.
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If humans replace the forest with a factory, how will this affect the carbon cycle in the
area?
The forest is defined as a carbon sink, and with its removal, there will be less carbon
released into the atmosphere.
The forest is defined as a carbon source, and with its removal, there will be less carbon
released into the geosphere.
The forest is defined as a carbon sink, and with its removal, there will be more carbon
released into the atmosphere.
The forest is defined as a carbon sourceand with its removal, there will be more carbon
released into the hydrosphere.
Answer:
The forest is defined as a carbon sink, and with its removal, there will be more carbon
released into the atmosphere.
Explanation:
What sugars can plants produce?
Answer:
glucose
fructose
Sucrose ( this is made with the combination of glucose and fructose)
Explanation:
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hope it helps u
Different cell organelles perform different functions. Which cells would
most likely have the largest vacuoles?
Which of the following is NOT a cartilage we find in the body?
Dense cartilage
Hyaline cartilage
Fibrocartilage
Elastie cartilage
Monitoring a population's age structure plays an important role in successful wildlife management. Which of the following scenarios can be an indicator of overexploitation in fish?
A)
fish catch not reaching older ages
B)
decline in fish catch
C)
both a and b
D)
none of the above
Answer:
d none of the above
Explanation:
because the answer is not one of the a,b,c,d
Answer:
C) both a and b
Explanation:
You're exploiting fish by catching them at a young age. A decline in fish catch can be a consequence of fish exploitation.
What makes stars produce enrgy
Answer:
Stars produce energy from nuclear reactions
the reaction occurs when hydrogen and helium fuse toghther.
Explanation:
Answer:
Stars make energy through nuclear fusion
Explanation:
Which of the following patterns in the fossil record would be an example of an organism evolving through punctuated equilibrium?
A. dorsal fins appearing, disappearing, and reappearing in species of ancient aquatic reptiles, mammals, and fish
B. a species of flower changing in shape, followed by a change in the beak shape in its preferred species of pollinator
C. the shell shape of a species of snail remaining unchanged for millennia until it changes to an entirely different shape
D, whale species gradually changing from land-dwelling mammals that walked on four legs to marine mammals without legs
Whale species gradually changing from land-dwelling mammals that walk on four legs to marine mammals without legs would be an example of an organism evolving through punctuated equilibrium. So, the correct option is (D).
What is Punctuated equilibrium?Punctuated equilibrium is defined as the theory that proposes that once a species appears in the fossil record, the population will be stable, showing little evolutionary change for most of its geological history, with little or no morphological change. The condition is called statis.
This balance is the idea that evolution is rapid rather than following the slow, but steady path Darwin suggested. Long periods of stagnation with little activity are interrupted by intermittent bursts of activity in the case of extinction or emergence of new species.
Thus, Whale species gradually changing from land-dwelling mammals that walk on four legs to marine mammals without legs would be an example of an organism evolving through punctuated equilibrium. So, the correct option is (D).
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please help ASAP i’ll give brain
Answer:
27. f 28. d 29. b 30. a 31. g 32. h
Explanation:
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many pathogenic bacteria species are bcoming resistant to antibiotics. explain how such adaptions can develop through the process of natrual selection
Answer:
Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. ... The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce.
Explanation:
Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. ... The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce.
Answer:
Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. ... The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce.
Explanation:
Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. ... The antibiotic action is an environmental pressure; those bacteria which have a mutation allowing them to survive will live on to reproduce.
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