Answer:
option 1 and 4
Explanation:
It flows from high pressure to low pressure as air is made up of gases and gases move according to the process of diffusion.
It moves from lower density to higher density as pressure is inverse to density. As density is not what makes the air move it is pressure.
How is the endosymbiotic theory used to support the emergence of eukaryota
Answer:
It involves a cooperative relationship between two cells
Explanation:
allow both to survive—and eventually led to the development of all life on Earth.
When oxygen first was released in the early seas it combined with iron to form
A)RNA
B)DNA
C)proteins
D) DNA molecules
Which process produces human egg and sperm cells?
Answer:
Hey there! Your answer will be below.
Explanation:
The answer to your question is gametogenesis or meiosis ( which produces gametes....From meiosis it becomes or forms into gametes.)
So the answer should be gametogenesis/ meiosis....
Hope that helps!
By: xBrainly
Meiosis or gametogenesis is the process that produce human egg and sperm cell.
What is meiosis?Meiosis is a type of reproduction in which a parent cell divide into four daughter cells that are genetically different from the parent cell. The daughter cells have half number of chromosome of the parent cell.
This process produce the gametes which are the sperm cell and egg cell.
Therefore, Meiosis or gametogenesis is the process that produce human egg and sperm cell.
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What can plant fossils reveal about the area in which they are found? Question 3 options: A. The air pressure and ocean currents at the time the plant was living B. The type of animals that were present at the time the plant was living C. The types of rocks and minerals in the area at the time the plant was living D. The climate/temperature at the time the plant was living
Answer:
i think option B is correct answer because plants also gets nutrient from the animal so , there is more chance to get the information about the animals that were found in that area and time.
hope it helps..
Which pair of terms best describes a wooden table?
biotic and nonliving
biotic and living
abiotic and nonliving
abiotic and living
Answer:
Biotic and non-living
Explanation:
=> Since it can't move,respire, ingest or reproduce , it is a non-living thing.
=> It is a component derived from the living part of an ecosystem(A wooden tree), so it is a biotic component.
Drag each label to the correct location on the diagram.
Label the parts of the brain.
cerebrum
thalamus
hypothalamus
brain stem
cerebellum
medulla
oblongata
midbrain
pons
Answer:
Left side: 1-cerebellum 2-hypothalamus 3-pons 4-medulla oblongata
Right side: 1-thalamus 2-midbrain 3-cerebrum 4-brain stem
Explanation:
The correct labelling is
Left side: 1-cerebellum 2-hypothalamus 3-pons 4-medulla oblongataRight side: 1-thalamus 2-midbrain 3-cerebrum 4-brain stemWhat is a Brain?This refers to the part of the body that is responsible for the overall coordination of the body system.
Here, we can see that we need to label correctly the given answer choices according to their positions on the left and right side of the brain and they have been done above.
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Scientists often ask questions to clarify data or guide scientific research. What are two scientific questions you have that
could clarify relationships about the DNA or traits of these orchids?
Answer:What traits would orchids have if the MADS-box genes were not duplicated?
If the genetic mutation changed the shape of the flowers, would pollinators still be attracted to the orchids?
Explanation: The example given by Plato
If the genetic mutation changed the shape of the flowers, would pollinators still be attracted to the orchids.
What is Genetic mutations?The DNA sequence of a gene is altered to generate a different result, which is known as a genetic mutation. The DNA sequence of that gene is permanently altered.
For humans to develop, which is the process of change over a number of generations, genetic variances are crucial. In one person, a spontaneous genetic mutation takes place.
The genetic mutation of that person is passed down through generations (hereditary) to their offspring. If the mutation increases a person's likelihood of survival or immunity to disease, it starts to be handed down through generations and disseminated throughout the community.
Therefore, If the genetic mutation changed the shape of the flowers, would pollinators still be attracted to the orchids.
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Which element is less electronegative than barium (Ba)?
The Periodic Table
O A. Lead (Pb)
O B. Radon (Rn)
O C. Beryllium (Be)
D. Cesium (Cs)
Answer:
cesium
Explanation:
cesium has 0.79 electronegativity and barium has 0.89. All other element have electronegativity higher than that of barium
If the number of photosynthetic organisms on the earth decreased drastically, which would happen as a result? Less water would be available on the earth’s surface. Less solar energy would reach the earth’s atmosphere. More oxygen gas would be found in the atmosphere. More carbon dioxide gas would be found in the atmosphere.
Answer:
More carbon dioxide gas would be found in the atmosphere.
Explanation:
Photosynthetic organisms convert carbon dioxide in air to oxygen through photosynthesis, while other non-photosynthetic organisms only consume oxygen and release carbon dioxide through respiration, they do not undergo photosynthesis.
When the number of photosynthetic organisms on the earth decreased drastically, the carbon dioxide released from other non-photosynthetic organisms cannot be converted to oxygen, so carbon dioxide in air accumulates.
In an organ transplant, a doctor transfers a donated organ from a recently deceased person to a live patient. One of the consequences is that the patient’s immune system—the system that protects against diseases and pathogens in the body—will reject the new organ. Explain why this consequence isn’t a concern with organs grown from human stem cells.
The immune response is usually triggered by the presence of the donor's own unique set of HLA proteins, which the recipient's immune system will identify as foreign.
What is graft rejection?To prevent infection, the immune system launches an attack against foreign invaders when it comes into contact with them. The immune system must be able to distinguish between our own healthy tissues and external invaders in order to avert an attack on our own cells and tissues (autoimmunity).
When the recipient's immune system assaults the donor graft and starts killing the transplanted tissue or organ, graft rejection takes place. The presence of the donor's own distinct collection of HLA proteins, which the recipient's immune system will recognize as alien, typically initiates an immunological response.
Histocompatibility refers to the degree of resemblance among the HLA genes of the donor and recipient; the more suitable the donor and recipient are genetical, the more accepting the recipient's immune system should be of the transplant. There will always be some degree of rejection, though, unless the donor and receiver are genetically identical (such as identical twins).
Therefore, the difference in HLA proteins results in graft rejection.
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Which statement describes a parasite?
• A parasite is beneficial to its host.
O Aparasite is harmed in its relationship with the host.
A parasite only benefits when the host is alive.
A parasite always kills its host and takes all the nutrients.
What scientific knowledge about macromolecules is a direct result of Gerardus Johnannes Mulder’s 1838 discovery? All proteins contain carbon, hydrogen, oxygen, and nitrogen. All carbohydrates contain carbon, hydrogen, and oxygen. Nucleic acids are polymers with nucleotide monomers. The helical structure of DNA is essential for protein production.
Answer:
All proteins contain carbon, hydrogen, oxygen, and nitrogen.
Explanation:
edge
As per the Gerardus Johnannes Mulder’s 1838 discovery, all proteins contain carbon, hydrogen, oxygen, and nitrogen. The correct option is A.
What is Gerardus Johnannes Mulder’s 1838 discovery?Mulder used the descriptor protein in his 1838 document, "On the composition of some animal substances," after Jons Jacob Berzelius suggested it.
He also proposed in the same journal that animals get the majority of their protein from seedlings, which was known as protein.
Mulder was the very first to posit a stipulates the factors that cause distinctions in chemical and physical behavior when revealed to reagents between albumin, casein, and fibrin and other substances more or less similar to them.
All proteins, according to Gerardus Johnannes Mulder's 1838 discovery, contain carbon, hydrogen, oxygen, and nitrogen.
Thus, the correct option is A.
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*ANSWER PLS* What is one possible effect in humans of microbiological pollution? a.) heart disease b.) ecosystem destruction c.) cholera d.) eutrophication
Cholera is one possible effect in humans due to microbiological pollution. The correct option is c.
What is cholera?Cholera is a severe diarrheal condition caused by a Vibrio cholerae bacterial infestation of the intestine.
People can become ill if they consume cholera-contaminated food or water. The infection is frequently mild or without symptoms, but it can occasionally be severe and life-threatening.
Cholera is one possible effect in humans due to microbiological pollution.
Thus, the correct option is c.
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Read the passage from Darwin's journal. These two species of Amblyrhynchus agree, as I have already stated, in their general structure, and in many of their habits. Neither have that rapid movement so characteristic of the genera Lacerta and Iguana. They are both herbivorous; although, the kind of vegetation on which they feed is so very different. Mr. Bell has given the name to the genus from the shortness of the snout; indeed, the form of the mouth may almost be compared to that of the tortoise: one is led to suppose that this is an adaptation to their herbivorous appetites. It is very interesting thus to find a well-characterized genus, having its marine and terrestrial species, belonging to so confined a portion of the world. The aquatic species is by far the most remarkable because it is the only existing lizard which lives on marine vegetable productions. As I at first observed, these islands are not so remarkable for the number of the species of reptiles; as for that of the individuals, when we remember the well-beaten paths made by the thousands of huge tortoises—the many turtles—the great warrens of the terrestrial Amblyrhynchus—and the groups of the marine species basking on the coast-rocks of every island—we must admit that there is no other quarter of the world where this order replaces the herbivorous mammalia in so extraordinary a manner. What differences did Darwin find about the two species? One is fast, while the other is slow. One eats plants, while the other eats meat. One lives inland, while the other lives in the water. One has a long snout, while the other has a short snout.
Answer:
One lives inland, while the other lives in the water.
Explanation:
Amblyrhynchus cristatus is a marine reptile that lives in the Galápagos Islands. This species attracted the attention of Darwin because it is a marine iguana that lives exclusively in the Galapagos and, interestingly, their close relatives inhabit in land, also in the Galápagos Islands. The marine and land iguanas from Galápagos form a phylogenetic clade that is characterized by high diversification levels, which are evidenced by conspicuous phenotypic differences. These species can hybridize with each other, but the offspring are infertile. Recently, it has been shown by using phylogeographic analysis that both species diverged 8-10 million years ago.
Answer:
They both eat plants.
Explanation:
They are both herbivorous; although, the kind of vegetation on which they feed is so very different.
In an electron microscope, the sample is bombarded with a stream of electrons that are expelled from an electron gun. The electrons interact with the sample component, the result of which is transformed into an image. Why do you think electron microscopes allow for greater magnification than compound microscopes?
Answer:
It is because the electron microscope uses a shorter wavelength electron
Explanation:
In an electron microscope the sample is always bombarded with a stream of electrons. These electrons usually have shorter wavelengths.
The electrons interact with the sample component well, the result of which is transformed into an image which is always clearer and allows for greater magnification than the compound microscope as a result of the short wavelength electrons being used.
Answer:
Due to the shortened wavelength electron it causes a greater magnification than compund microscopes.
3. Because plants don’t have interior or exterior skeletons, they rely on their cell walls to give them structural support. Did you see evidence of this cell structure in plants? How was it different from the animal cells (the blood cells, cardiac muscle, and skin)? 4.The paramecium was the only unicellular organism that Stella viewed through her microscope. All the other organisms were multicellular. How was the unicellular specimen different from the multicellular organisms? 6. Why do you think electron microscopes allow for greater magnification than compound microscopes?
Answer:
3. Plant cells are arranged in tight squares due to their cell walls and are filled with water. These characteristics give the plant a structural support.
In exocytosis, the membrane package fuses with _____.
the cell membrane
the nucleus
a gap junction
a transport protein
Answer:
the cell membraneExplanation:
In exocytosis, the membrane package fuses with the cell membrane.
[tex]hope \: this \: helps[/tex]
*ANSWER ASAP TY*
Rainforests are destroyed so cash crops can be planted. What are cash crops?
a.) plants that grow slowly and are sensitive to moisture
b.) plants that are grazed by cattle
c.) plants that produce flowers that resemble money
d.) plants that grow quickly and have many uses
Rainforests are dense and canopied trees rich in biodiversity. They are destroyed to plant the cash crops that grow quickly and have various uses. Thus, option D is correct.
What are cash crops?Cash crops are plants that grow rapidly and have many uses that benefit the economy. They are planted mainly for selling purposes and to make a profit.
Cash crops like sugar cane, tomatoes, cotton, tea, coffee, etc. are planted to make a profit and earn money and differ from the agricultural crops as they are planted generally for sale purposes.
Therefore, cash crops are fast-growing crops.
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If the number of photosynthetic organisms on Earth decreased drastically, which would happen as a result? Less water would be available on Earth’s surface. Less solar energy would reach Earth’s atmosphere. More oxygen gas would be found in Earth’s atmosphere. More carbon dioxide gas would be found in Earth’s atmosphere.
If photosynthetic organisms are decreasing on Earth there is no consumption of carbon dioxide, hence option 4 is correct.
How much carbon dioxide Earth’s atmosphere?The amount of oxygen in the atmosphere will likewise decrease as the number of photosynthetic species rises.
More carbon dioxide gas would be found in the atmosphere because forests, especially rainforests, create more oxygen. The development of oxygenic photosynthesis was the most significant metabolic advancement in Earth's history.
It liberated life from the finite supply of reductants drawn from geochemistry and allowed it to create energy and reduce power directly from sunshine and water.
Therefore a decrease in photosynthetic organisms increases the carbon dioxide gas in Earth’s atmosphere.
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Sample Response: If the electron transport system did not work, electrons from PSII would not be transferred to PSI. Ferredoxin would then have no electrons to transfer to NADP+ so NADPH would not be produced. This would also affect the light-independent reaction of photosynthesis because NADPH is needed in this reaction. What did you include in your response? Check all that apply. Electrons from PSII would not be transported to PSI. PSI would have no electrons to transport to ferredoxin. Ferredoxin would have no electrons to transport to NADP+. NADPH would not be produced. The light-independent reaction of photosynthesis would be affected.
Answer:
Check all of em
Explanation:
Answer: all of them
Explanation:
(: brainlest pls
I need help on this question will give brainly points must be right.
Answer:
3
Explanation:
The answer is three, I just did it
what does the word "Cuneiform " means?
Answer:
It's an old writing system from ancient Mesopotamia.
Explanation:
If you check Wikipedia you'll see that cuneiform was a writing system from the sumerians. it comes from the Latin term that means wedge, which is kind of the tool they used back then to wedge shape clay pieces.
the advantage to a plant i’m having more than one pigment is shown by the absorption of:
A) Violet and red light by chlorophyl a and blue and orange light by chlorophyl B
B) Violet and blue light by chlorophyl a and orange, and red light by chlorophyl B
C) Violet, blue, green, and red light by carotene
D) Green, and yellow light by chlorophyl a, chlorophyl B, and carotene
Answer:
B) Violet and blue light by chlorophyl a and orange, and red light by chlorophyl B
Explanation:
Chlorophyll is the pigment present in green plants which is used in the process of photosynthesis by trapping solar energy for use. Chlorophyll comprises of two types namely: Chlorophyll A and Chlorophyll B
Chlorophyll A is known to absorb light in the blue-violet region while chlorophyll B absorbs light in red-blue region. These pigments however don’t absorb green light but they instead reflect it. This makes option C and D invalid. The closest option in their properties is however B.
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Answer:
30. L
31. R
32. R
33. L
34. L
Answer:
[tex]30)\blue{100cm = 1m}[/tex]
[tex]\boxed{\blue{ = L}}[/tex]
[tex]31)\green{1Mm = 1000000m}[/tex]
[tex]\boxed{\green{ = R}}[/tex]
[tex]32)\pink{1km = 1000000mm}[/tex]
[tex]\boxed{\pink{ = R}}[/tex]
[tex]33)\purple{1000micro \: \: \: meter} \\ \purple{ = 1mm}[/tex]
[tex]\boxed{\purple{ = L}}[/tex]
[tex]34)\red{1000000mm = 1km}[/tex]
[tex]\boxed{\red{ = L}}[/tex]
Which of these does not determine an ecosystem carrying capacity for a population?
A. Food
B. Space
C. Migration
D. Water
Please answer it’s urgent would be very helpful . Thank you so much !
what is apple plus a banana it's really hard only big brain get it
Answer:
Panana is the answer buddy
Binary fission occurs in which of the following type of organsim?
Answer:
A. Prokaryotes like bacteria
Explanation:
Binary fission is a type of asexual reproduction (requiring only one organism, as opposed to sexual reproduction, which requires two) occurs when an organism itself splits into two - hence binary (bi- means two).
Binary fission occurs most often in prokaryotes; eukaryotes like plants and animals engage more in sexual reproduction because they are more complex.
The answer is thus A.
Categorize Different Foods Categorize the food items below by selecting which macromolecule they are known to contain. apple steak celery olive oil potato avocado egg
Answer:
The correct categorization of the listed food items would be:
Carbohydrate: apple, celery, potato
Protein: Steak, egg,
Fat: Olive oil, avocado.
The four major macromolecules are carbohydrates, proteins, lipids, and nucleic acids.
Foods like apple, celery, and potato are rich in carbohydrates.
Foods like chicken, meat, eggs, et cetera are rich in proteins.
Similarly, foods like olive oil, mustard oil, butter, et cetera are rich in fats or lipids.
Explanation:
Answer: apple- carb; steak- protein; celery- carb; olive oil- lipid; potato- carb; avocado- lipid; egg- protein
Explanation:
Fruit and veggies are mainly made of carbohydrates because that is the storage and structural components they use (think glucose, cellulose, starch, etc.); Steak is a meat, and meat is technically muscle- muscle is built from protein; Olive oil and avocado are lipids because they are considered fats; Egg is protein because it is an animal by-product, and contains many amino acids, which build up proteins.
How many rounds of division are there when one cell in the testis becomes four sperm cells?
Answer:As a result of the two meiotic divisions, each primary spermatocyte produces four spermatids. During spermatogenesis there are two cellular divisions, but only one replication of DNA so that each spermatid has 23 chromosomes (haploid), one from each pair in the original primary spermatocyte
Explanation:
How do mutations occur
Answer:
Mutations can occur when a strand of DNA copies itself during cell division.
Mutations can lead to many disorders, and can be damaging.
Hope this helped! :)
Answer:
Mutations can occur when DNA replication errors are made or not made in time
Explanation: