Answer: The smallest structural and functional unit of an organism that can be said to be alive.
Explanation:
Answer:
B
Explanation:
A cell is the smallest unit of life so the answer is B.
48.Which is a significant environmental cost of burning fossil fuels that is not incurred with the use of the other energy resources?
A. global climate change, which is caused by the transfer of carbon to the atmosphere
B. a disruption of the water cycle, which is caused by the heating of water at power plants
C. radioactive pollutants, which may be accidentally released at power plants
D. localized warming, which is caused by the release of heat into the atmosphere
Answer:
A
Explanation:
big brain
;3
Which of these is a function of testosterone in reproduction?
A. Reducing the size of the adrenal glands
B. Reducing function of the exocrine glands
C. Promoting the development of the endocrine system
D. Promoting the development of adult male characteristics
i think its D but i'm not 100% sure
Why does energy transfer not always result in phase change?
PLZ HELP!!!
PLZ PLZ HELP!!!!
Answer:
These energy changes are mot changes into kinetic energy . They are changing in bonding energy between the molecules " If heat is coming into a substance during a phase change , then this energy is used to break the bonds between the molecules of the substance .
Explanation:
hope it helps !!
Energy transfer does not always result in phase change because ; Not all energy transfers breaks the bonds between molecules ( i.e. kinetic energy )
What is energy transferEnergy transfer is the movement/transfer of energy from one system to another usually in the form of heat , work or other form of mass transfer.
Not all Energy transfer results in the phase changes because some energy transfers are not Kinetic energies and do not breakup the bond between molecules.
Hence we can conclude that Energy transfer does not always result in phase change because ; Not all energy transfers breaks the bonds between molecules ( i.e. kinetic energy ).
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Discuss, why is rubisco the key enzyme for the production of worlds food
Answer:
Rubisco is the major enzyme used to catalyse the carbon fixation step during the Calvin cycle in photosynthesis.
During carbon fixation, RUBP undergoes a redox reaction with CO2 to form 3-phosphoglycerate (a 3 carbon compound). 3-phosphoglycerate then undergoes phosphorylation by ATP and reduction by NADPH to form glycerate 3 phosphate molecules (main product), ADP and NADP+ molecules (by product).
Some Glycerate 3 phosphate produced are used to regenerate RUBP for the Calvin cycle to continue while the rest of the Glycerate 3 Phosphate is used to synthesise monosaccharides like glucose.
Without Rubisco, carbon fixation cannot occur and RUBP will not be able to combine with C02 to form a 6 carbon unstable intermediate the breaks down to form 3-phosphoglycerate and eventually undergoing more reactions to form glycerate 3 phosphate which is the basic product of photosynthesis used to synthesise glucose and eventually starch which serves as the world's food.
Some people think hydropower should be used supply all of the electricity for the United States. Which of the following statements describes a flaw in this plan?
A. Wind power causes too much pollution
B. Wind cannot used to generate electricity
C. Wind power can be used only in certain areas
D. Wind power contributes to climate change
Wind power can be used only in certain areas.
-or-
(depending on the way it's written)
These power sources can only be used in some areas.
Some people think hydropower should be used to supply all of the electricity for the United States, and the flaw is that wind power can be used only in certain areas; that is option C, as in most urban areas it is not effective as there is not much space and wind speed.
What is hydropower?Hydropower is a renewable energy source and has many benefits, including the ability to generate large amounts of electricity without emitting greenhouse gases. However, it also has limitations. Hydropower is dependent on the availability of water resources, which can vary depending on seasonal changes, weather patterns, and other factors. In addition, hydropower can have negative environmental impacts, such as disrupting natural river ecosystems and affecting fish populations.
Hence, some people think hydropower should be used to supply all of the electricity for the United States, and the flaw is that wind power can be used only in certain areas; that is option C, as in most urban areas it is not effective as there is not much space and wind speed.
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In scientific terms, the person lifting the most weight always has the most power.
True or False
Answer:true
Explanation:
Answer:
Answer:true!!!!!!!!!!!!!!
Explanation:!!!!!!!!!!!!!
licze jako najlepsza odpoiedz!!!!!!!!!!!!!!!!
Explanation:
In an atom why don’t the electrons float away ? The float around in the electron cloud but what keeps them from floating away ?
Answer: If an electron is in the electric field of a nucleus, the electron can occupy only certain energy levels. When it is sitting on one of these energy levels, it does not radiate, it does not loose energy.
Clouds are made of water droplets and ice crystals. A cloud's individual particles are so small, Also that warm air rising from the earth's surface is able to keep them floating in the air.
Electron clouds are the energy levels where the probability of getting an electron is maximum. These float due to the small size which results into rising them from the earth's surface.
What are the electron cloud?
An electron cloud can be defined as the region which is surrounding an atomic nucleus in the atom in which there is a high probability of an electron being located.
If an electron, negatively charged particle is in the electric field of a nucleus, then the electron can occupy only certain energy levels in the atom. When it is sitting on one of these certain energy levels, then it does not radiate, and hence does not loose energy.
Electron clouds are made up of water droplets and ice crystals. A cloud's individual particles are so small in size, also that the warm air rising from the earth's surface is able to keep them floating in the air.
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3. What types of damage can
introduced species cause?
Answer: They can change an entire habitat, placing ecosystems at risk, crowd out or replace native species that are beneficial to a habitat, and damage human enterprise, such as fisheries, costing the economy millions of dollars.
Explanation:
If two genes show nearly 100 percent linkage, what does that tell us?
Select all that apply.
a) The two genes are on separate chromosomes.
b) The two genes are always inherited together.
c) The two genes are on the same chromosome.
d) The two genes are located very close to each other.
Answer:
two genes are inherited together
Explanation:
What is the possibility of the spread of chromium and its use in the future?
Chromium is already being used in the medicine industry to treat cancer (ovarian cancer in the form of chromium phosphate). So chromium may be used to build the efficiency of cancer treatment and make it more cost-efficient.
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What occurs during cytokinesis
Answer:
Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. During cytokinesis, the cytoplasm splits in two and the cell divides. ... In animal cells, the plasma membrane of the parent cell pinches inward along the cell's equator until two daughter cells form.
Explanation:
If B=bald b=hairy C=color blind c=normal vision describe the Phenotype
Can someone help me with a question
"Some plants called epiphytes, or air plants, have adapted to get nutrients from the air.
Some examples of epiphytes in rainforests are mosses, lichens, and orchids. Although
they often live on other plants, they don't take any nutrients from the other plants-they
get what they need straight from the air with special root systems.
There are also some plants called parasitic plants. They grow on other plants, their host
plants. Parasitic plants actually DO take nutrients from their host plants."
Why might the author have capitalized the word "DO"?
A. to point out a similarity
B. to make a contrast
C. to summarize a process
D. to make an argument
Answer:
B.
Explanation:
Prior to the parasite lines, he mentions that epiphytes do not take nutrients from other plants, therefore, by capitalizing the word "do" he is creating emphasis on the contrast between his two statements about plants.
Will give brainliest if u add a good explanation!
The presence of paired chromosomes makes a _____ cell, while a single member of a par of chromosomes makes a ____ cell.
For the first one the options are germ diploid gamete haploid
The second one is somatic haploid gamete diploid
Answer:
first blank - diploid
second blank - haploid
Explanation:
diploid cells have two sets of chromosomes, haploid cells have only one. a good way to remember is "haploid" reminds you of "half", and haploids have HALF of the number of chromosomes in a cell.
Answer:
Explanation:
Do shrimp follow the Carnegie stages of development?
Shrimp Eggs: The shrimp start as small almost invisible eggs and are food to zooplankton until they spawn due to becoming stimulated by temperature change and become larvae.
Nauplius Larva and Protozoea Larva: Larvae developed from fertilized eggs.
Mysis Larva: These are carried toward shore and continue to feed on zooplankton and phytoplankton.
Postlarva: These tend to be moved toward brackish waters and begin to look, forage, and graze like shrimp. They develop swimming and walking legs.
Juveniles: They can continue to interact with many species as predator and prey.
Subadult: Temperature changes stimulate growth and regulate its migration to sea.
Adult: Continues to grow on the sea bottom. Many are fed on by animals such as pinfish, silver sea trout, sharks, and redfish and snared by commercial trawlers.
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Answer:
No
Explanation:
Amy’s white cat had kittens. The father of the kittens was MOST LIKELY A) curious B) large C) orange D) white
Answer:
ANSWER: the answer is a I think
please help me!!
A student drew this model to show the flow of convection currents
on Earth.
Part A
Is the model accurate? Explain your answer.
Answer:
Yes the model is correct
Explanation:
Transfer of heat energy takes place usually any of these three processes namely; Conduction, Convection and Radiation. In conduction, transfer of heat energy takes place by microscopic collisions of particles within a body. In radiation, heat, light and energy through any source is sent out from something and moves through space without a material medium of propagation. In Convection, heat transfer happens because of the movement of the bulk of molecules within fluids.
We can define convection currents as a natural process of heat transfer involving the movement of energy and heat from one place to another.
The equator is the part on Earth that is nearest to the sun hence it receives much heat. As a result of this, the air near the equator rises upwards as it becomes less dense and later spreads out and again descends towards the equator. This process is responsible for the continual circulation of air which is called wind. It is due to the process of atmospheric convection currents that the clouds are kept aloft.
From the foregoing, the model shown in the image has been validated as a correct model of convection current in nature.
Answer:The model accurately shows convection. However, these large convection currents would occur only if Earth did not rotate. Because Earth rotates, smaller convection cells form.
Explanation:
Plato answer (it's the exact answer if you can reword it.
Caddisfly larvae prefer to live in clean, clear water. Thus, the presence of these larvae can be used to determine the stream's... A. flow rate. B. water quality. C. concentration of dissolved oxygen. D. biodiversity.
Answer:
water quality
Explanation:
because it made sense and i already did it
Which scatterplot shows a lack of a trend between the x-axis data and y-axis data?
Answer:
the answer was D
Explanation:
i got a 100 finally
Answer:
D
Explanation:
The dots are all over the place
Which of these best describes incomplete dominance?
When the dominant allele does NOT completely cover up the recessive allele and they MIX creating a third phenotype.
When the dominant allele covers up the recessive allele.
When both the dominant and recessive allele express a phenotype (like spots).
Answer:
Incomplete Dominance is when they mix.
Explanation:
white flower + red flower = pink flower
What is the best classification of the stimuli described in the following scenario?
You are quietly reading a book on the beach. Unexpectedly, the person next to you lights a large firework. You
jump up and throw your book in the sand.
Wilting and Turgor
o Geotropism
Photoropism
Fight or Flight
which of these is an effect of an algal bloom?
A. The mercury contained in fish build up in animals that eat the fish
B. An increased growth in microorganisms result in oxygen depletion
C. Materials containing metal are toxic to organisms that live in them
D. Bacteria are introduced to break down hydrocarbons in an oil spill
the answer is B. an increased growth in microorganisms results in oxygen depletion
Gravity is a force.
O True
O False
Answer:
True
Explanation:
Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Gravity is not just the attraction between objects and the Earth. It is an attraction that exists between all objects, everywhere in the universe.
Plsss I need help answer all the questions I need this before 2:00pm
Answer:
3 is b variable
4 is c the results
5 is b make a model
Answer: number 3 would be variable and number five would be to ask a meteorolgist. idk what number four is
Explanation:
What is the carbon/oxygen cycle?
How does oxygen enters the atmosphere?
How does carbon dioxide enters the atmosphere?
What are 3 ways oxygen is released into the environment?
Answer:
Explanation:
*Plants use carbon dioxide in a process known as photosynthesis. During photosynthesis, plants give off oxygen as a waste product. Carbon dioxide moves from the air into the leaves of plants through tiny openings in the plant's leaves.
*Plants use sunlight and carbon dioxide to produce oxygen through the process of photosynthesis.
*Carbon dioxide is added to the atmosphere naturally when organisms respire
*Plants
Which statements describe a host organism? Check all that apply.
A host shares nutrients with a parasite.
A host loses nutrients to a parasite.
A host obtains nutrients from a parasite.
A host is dead when nutrients are taken.
A host is alive when nutrients are taken.
Answer:
A host loses nutrients to a parasite.
A host is alive when nutrients are taken.
Explanation:
Answer:
A host is alive when nutrients are taken
A host lose nutrients to a parasite
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URGENT!!!!!
Gene expression in prokaryotes is regulated at which stage?
A. Translation
B. Transcription
C. Post-transcriptional modification
Answer:
B. transcription
Explanation:
Prokaryotic transcription and translation occur simultaneously in the cytoplasm, and regulation occurs at the transcriptional level. Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm.
what eventually happens to be a species when the environment changes and the organisms do not adapt?
A: classification
B: development
C: extinction
D: regulation
Answer:
C
Explanation:
What kind of gas exchange takes place in the lungs?
Your blood picks up blank and expels blank.
Answer:
carbon dioxide
Explanation:
you can collect me when am wromg
Answer:
carbon dioxide
Explanation: