Answer: False
Blood does change color somewhat as oxygen is absorbed and replenished. But it doesn't change from red to blue. It changes from red to dark red. It is true that veins, which are sometimes visible through the skin, may look bluish.
Answer:
B. False
Explanation:
Blood is not blue in your body. It doesn't turns red outside your body. Your blood is red, both outside and inside your body.
Assertion: The body of paramoecium is flexible.
Reason: They have specialized cells called heterocysts. 1
a. Both assertion and reason are true, and the reason is the correct explanation
of the assertion.
b. Both assertion and reason are true, but the reason is not the correct explanation
of the assertion .
c. Assertion is true but reason is false.
d. Both assertion and reason are false
Which statements best explain how students would know if a chemical reaction occurred during the steel wool demonstration? Select TWO correct answers from the choices below.
Answer:
When the heat energy releases and formation of iron oxide.
Explanation:
When the heat energy releases and formation of iron oxide are the indications that chemical reaction takes place. during the steel wool demonstration. During the steel wool demonstration, heat energy released when the iron combine with oxygen forming solid iron oxide. So we can conclude that release of heat energy and formation of iron oxide tells us that the chemical reaction takes place.
Why is capillary action useful in nature?
it allows water to climb the vessels in plants
it allows water to cool down or heat up slowly
it helps water dissolve substances
it assists in forming surface tension on bodies of water
Answer:
D
Explanation:
Answer:
D
Explanation:
The light reactions can only occur in the absence of light.
A. True
B. False
Answer:
false
Explanation:
the light reactant needs light
Pls help me will give points
Answer:
D
Explanation:
D is my best bet because most have cilia and flagella to help move them around their environment.
A is for multicellular organisms, B occurs only in some unicellular but not all, C is for multicellular mostly (some unicellular can have it), but D applies to majority of unicellular (almost all have some sort of mechanism for movement)
what is the process of transformation?
infecting bacteria with bacteriophages
adding foreign DNA to a bacterial cell
copying foreign DNA into RNA
causing mutations in viral genetic material
please answer this for me
Answer:
I think the answer would Be B
*WILL GIVE BRAINLIEST+100 POINTS* i need a Model describing the carbon cycle
Which number is labeling the part of the digestive system that releases acid and mixes the food to break it down?
Answer:
D
Explanation:
the stomach releases strong acid to digest and break down the food
A benefit of a diet high in carbohydrates is Group of answer choices increasing muscle glycogen storage to prevent muscle fatigue. changing carbohydrates into fat in the muscle to prevent muscle fatigue. decreasing lactic acid build-up to prevent muscle fatigue. changing carbohydrates into protein in the muscle to spare muscle protein. changing carbohydrates into fat in the muscle to spare muscle glycogen.
Answer:
what is the question
A benefit of a diet high in carbohydrates is increasing muscle glycogen storage to prevent muscle fatigue.
What are carbohydrates?Carbohydrates are a type of macronutrient composed of one or more subunits called monosaccharides (eg. glucose).
Glycogen is a polysaccharide composed of many subunits of glucose monosaccharides.This polysaccharide (glycogen) serves as a storage of energy in different species of animals.In conclusion, a benefit of a diet high in carbohydrates is increasing muscle glycogen storage to prevent muscle fatigue.
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Which is an example of an ecosystem change that resulted from human activity?
Answer:
Your welcome! :)
Explanation:
An example is:
Deforestation occurs when a forest or stand of trees is removed, converting the land to a nonforest use. This changes the ecosystem drastically and results in a dramatic loss of biodiversity.
♡♡♡
Answer:
chaparral shrublands turning to grass due to frequent fires
Explanation:
I just took the quiz and it's right
What are the three things the plant needs in order to do photosynthesis?
A. sunlight, oxygen, and carbon dioxide
B. sunlight, carbon dioxide, and water
C. sunlight, oxygen, and water
Answer:
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight
so, B
it's sunlight carbon dioxide and water
A major difference between eukaryotes and prokaryotes is that __________. A major difference between eukaryotes and prokaryotes is that __________. some eukaryotic cells live in areas of temperature extremes whereas prokaryotic cells cannot prokaryotic cell structure is much more complex than eukaryotic cell structure eukaryotes were the first cell type on Earth eukaryotic cells contain the genetic material DNA whereas prokaryotic cells contain RNA eukaryotes' survival is limited to a few environments whereas prokaryotes have adapted to a variety of environments
Answer:
All life on Earth consists of either eukaryotic cells or prokaryotic cells. Prokaryotes were the first form of life. Scientists believe that eukaryotes evolved from prokaryotes around 2.7 billion years ago.
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information. In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus.
The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure. Eukaryote DNA consists of multiple molecules of double-stranded linear DNA, while that of prokaryotes is double-stranded and circular.
Explanation:
What is the main function of the endocrine system?
A. secrete hormones
B. send nerve impulses
C. produce blood cells
D. produce DNA
Answer:
A. secrete hormones
Explanation:
Endocrine glands release hormones into the flowing bloodstream, which lets them travel to cells in other body parts. These endocrine hormones help control mood, growth & development, the way our organs work, metabolism, and reproduction.
Answer:
A secrete hormones
Explanation:
Endocrine glands release hormones into the bloodstream. This lets the hormones travel to cells in other parts of the body. The endocrine hormones help control mood, growth and development, the way our organs work, metabolism , and reproduction.
hope it helps
Escribe las diferencias entre los dos tipos de sinapsis.
Tissue working together makes an-
A. Organism
B. Organ
helpppppppppppppppp plzzzzzzzzz
Answer:
C would be the answer to your answer
Hope this helps :)
Explanation:
helpppppppppppppppp plzzzzzzzzz
Heh- no worries i gotchu XDHomologous: Similar in position, structure, and evolutionary origin but not necessarily in function.
With this being said the answer is: "B" A bird's wing bone!, it's similar to a human's arm bone but it doesn't do the same thing as a human's arm bone! I apologize if i'm wrong//You're welcome if i'm correct((-Side Note-)): If you don't mind if my answer is correct can you pls mark my answer brainliest? Thank you ^v^
I hope you have a great day ^v^"A population of beach mice have been
introduced to a new disease. This
disease has killed off most of the
population. Some mice in the
population were better suited and
survived the disease, living to
reproduce. The population over time
has grown resistant to the disease.
This is an example of?
(1 Point)
*
Artificial Selection
Natural Selection
Selective Breeding
Item 5 What is the role of a generator in producing electricity? The generator stores electrical energy for later use in homes and businesses. The generator spins the turbine to create mechanical energy. The generator transforms the mechanical energy of the turbine into electrical energy. The generator reverses the turbine to create electrical energy.
Answer:
The generator transforms the mechanical energy of the turbine into electrical energy
Explanation:
Electricity generator is a device that is used in generating power supply which can be used in industries, homes and for commercial and private purposes.
It operates by converting mechanical energy into electrical energy for the use in an external circuit. mechanical energy can be obtained from steam turbines, internal combusting energy, gas and water turbines and it can be obtained through the rotating shaft.
The capacity of each generator determines the amount of energy it can supply to a given place.
The body obtains sugar from food. Which system most directly affects blood sugar levels?
ton
Digestive system
Explanation:
The sugar goes straight from the digestive system into the bloodstream after an individual consumes and digests food.
However, glucose can only enter cells if enough insulin is also circulating in the bloodstream. Insulin is a protein that makes cells ready to receive glucose
What is an atom trying to do
when it combines with other
atoms?
A. produce a reaction Ting
B. change state of matter
C. become less stable
D. become stable
Answer:
D. become stable
Explanation:
Atoms like to be stable. The primary reason why atom combines with another atom is to get in a lower energy state. This is why octet rule (where atoms have 8 electrons in outer shell) or duet rule (where atoms need two electrons in their outermost shell) are so crucial because they allow atom to be in the lowest energy form.
An example has been included below:
When an atom is trying to bind with the other atom then it is trying to become stable that is they are trying to come in a stable state. Option D is the correct answer.
It is the gaseous atoms that bind together very fastly and they make the bonds quickly.
In an tom when it is a state of the atom where an atom in its single state is not that stable but when it reaches the correct bonding atom which can stable is electronic configuration and can make stable bonds are called to be in their stable state.
For example oxygen atom in its nascent state that is O state is very unstable and is very reactive in nature that is tryting to form the bonds such that the reactive nature of the atom gets resolved along with the stable state can be achieved.
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helppppppppp plzzzzzzzzzzz
PLS HURRY AND NO LINKS PLEASE
If a long tail is a dominant characteristic, in which case is the characteristic of a long tail definitely expressed?
A when both parents have a long tail
B when neither allele contains instructions for a long tail
C when at least one parent has a long tail
D when at least one allele contains instructions for a long tail
Answer:
b
Explanation:
Answer:
the correct answer is d i took the test.
Explanation:
how can you separate iron filings from sand through which process
Answer:
Process called magnetic separation
Explanation:
The magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using magnetic force.
This method is also used to separate the mixture of sand and iron fillings as iron is attracted by magnet.
Answer:
Use a magnet to separate the iron filings from sand since iron is magnetic
When investigating a crime scene to determine if a suspect is possibly guilty, police often collect DNA evidence from the scene, such as DNA round in hair. What can police do with this DNA evidence?
Answer:
the physical sample of Subject's DNA profile will be destroyed immediately, and in no circumstances held any longer than 30 days; any and all data about Subject's genetic profile derived from that physical sample will be deleted immediately, and in no circumstances held any longer than 30 days. they can use the DNA sample to identify a suspect or use it in a court of law.
Explanation:
All of living and noliving things in a particular area
Any reaction that is not intended is called
How is the atmosphere a system, include components, inputs, outputs & flow.
Answer:
the flow in systems besides the flow.
Explanation:
Answer:
When studying Earth as a whole, our primary input is energy from the sun and from space. Earth outputs heat and light to space, maintaining an approximate overall steady-state with respect to energy.
Explanation:
Individual bones are organs.
A. True
B. False
Answer:
a
Explanation:
Answer:
True
Explanation:
Because they are made out of tissues
How do electronegativity, polarity, and ph all relate and effect each other? I know moderators, you will be reported if you give a link or wasteful answer.
Answer:Electrons in a polar covalent bond are shifted toward the more electronegative atom; thus, the more electronegative atom is the one with the partial negative charge. The greater the difference in electronegativity, the more polarized the electron distribution and the larger the partial charges of the atoms.
Explanation:
