Answer:
B. As new rocks are formed along mid-ocean ridges, older rocks are pushed down deep into the Earth into ocean trenches.
Why is the Earth not getting larger if the sea floor is slowly spreading?Mainly due to the Atlantic experiencing seabed expansion. The sea bottom is subducting, or moving underground, in the Pacific. This is how the Earth's tectonic plates and geological activities function. The top side of the mantle travels to the bottom at one end and to the top at the other, similar to a conveyor belt. This explains why there are volcanoes, why continents drift, and why our planet's surface is continually changing over the span of millions of years.
Therefore, the planet is not getting bigger because its surface is constantly recycling itself.
A scientist uses material in her lab to cut a DNA sample into fragments.What process is the scientist using
The process used by the scientist who uses a material to cut DNA sample into fragments is gel electrophoresis.
What is gel electrophoresis?Gel electrophoresis is a biological method for the separation and analysis of large molecules by migrating a colloidal solution of them through a gel medium.
Gel electrophoresis separates small molecules of DNA or protein based on their charge and size.
Therefore, the process used by the scientist who uses a material to cut DNA sample into fragments is gel electrophoresis.
Learn more about gel electrophoresis at: https://brainly.com/question/9437877
#SPJ1
Ling made a study chart for science class.
Alyssa is observing two cells, X and Y. Each cell is from either a plant or an animal. She records some of her observations in a chart.
Cell Observations
Cell X Cell Y
has lysosomes lacks lysosomes
lacks a cell wall has endoplasmic reticulum
has ribosomes has a nucleus
Which additional observation will Alyssa most likely make?
Cell X has a cell membrane, and Cell Y does not.
Cell Y has a cell membrane, and Cell X does not.
Cell Y has a larger vacuole than Cell X.
Cell X has a larger vacuole than Cell Y.
Alyssa's additional observation would be cell Y having a larger vacuole than cell X. The third option is the correct one.
Plant cell vs animal cellFrom the observations, both cells are eukaryotic. This is because:
cell X has lysosomes which are only found in eukaryotic cellscell Y has a nucleus which also peculiar to eukaryotic cells onlyLysosome houses digestive enzymes and is found mostly in animal cells. Only a few plant cells have lysosomes.
Thus, the lack of a lysosome means that cell Y is a plant cell while the presence means that cell X is an animal cell.
Generally, plant cells have larger vacuoles than animal cells.
More on plant and animal cells can be found here: https://brainly.com/question/1493437
#SPJ1
When we refer to the APHOTIC ZONE of the ocean, what do we mean? A. This is the very shallow part of the ocean. B. This is the part of the ocean where there is NOT enough light to support photosynthesis. C. This is the part of the ocean where light penetrates and plants can grow.
Answer:
B
Explanation:
B. This is the part of the ocean where there is NOT enough light to support photosynthesis
Answer:b
Explanation:
Which of the following statements is most accurate about how individual atoms produce light?
Group of answer choices
Electrons can spontaneously emit a photon of light without dropping to lower energy levels.
Light is not created by atoms, it just passes through them.
Photons are emitted when an electron jumps to higher energy levels in an atom.
An electron in an excited energy level of an atom will always drop to lower energy levels, emitting very specific wavelengths of light in the process.
Answer:
An electron in an excited energy level of an atom will always drop to lower energy levels, emitting very specific wavelengths of light in the process.
Dr. Diop is the head of an academic department in a school whose teachers have all been told to teach from home for the next month. She gets them all to have weekly check-ins using web-conferencing software so that they can meet while they’re all at home. This is an example of a ________ team.
Answer:
This is an exemple os a virtual team.
Explanation:
Virtual Teams are professionals who work together remotely through the internet and other electronic communication resources, so that they can achieve their common goals. They are presented online, where team members use various tools such as video conferences, e-mails and even social networks.
Dr. Diop is the head of an academic department in a school whose teachers have all been told to teach from home for the next month. She gets them all to have weekly check-ins using web-conferencing software so that they can meet while they’re all at home. This is an example of a virtual team.
See more at: brainly.com/question/27954695
Why are peer review and replication essential to reporting scientific work?
Answer:
Within the scientific community, peer review has become an essential component of the academic writing process. It helps ensure that papers published in scientific journals answer meaningful research questions and draw accurate conclusions based on professionally executed experimentation.
¿What is the Kingdom Plantae?
[tex]\sf{\qquad\qquad\huge\underline{{\sf Answer}}}[/tex]
¿What is the Kingdom Plantae?
It is one that is composed of multicellular, eukaryotic, autotrophic, anaerobic and immobile organisms whose reproduction is sexual or asexual.
They are classified in :-
Angiosperms Gymnosperms.I hope I've helped : )
Answer:
It is one that is composed of multicellular, eukaryotic, autotrophic, anaerobic and immobile organisms whose reproduction is sexual or asexual.
b. Describe how DNA and proteins influence the traits that are passed from generation to generation. You
must list and define the words "allele", "genotype" and "phenotype" in your explanation.
DNA and proteins influence the traits that are passed from generation to generation through the process known as meiosis.
What is Meiosis?This is a cell division which involves the parent cells giving rise to four unique daughter cells.
DNA contains the genetic instruction and is gotten from both parents which is copied through proteins which gives rise to allele being formed. The genetic constituent is referred to as genotype while the physical traits observed is the phenotype.
Read more about DNA here https://brainly.com/question/16099437
#SPJ1
What process occurs as a zygote becomes a blastocyst? meiosis cleavage division fertilization ovulation
The zygote is split into the blastula after fertilization. The three germ layers develop in the blastula, which in some species is a hollow ball of cells, during a process known as gastrulation.
Fertilization :
The majority of animal reproduction is comparable to human reproduction. Additionally, animals create gametes for fusion. Gamete fusion, however, can happen inside or outside of the body.
Type of fertilization :
internal and external fertilization.
How does fertilization work, for insinstance ?
A reproductive technique that involved joining a male and a female germ cell—each with a single, haploid pair of chromosomes—to produce a diploid cell known as a zygote.
Pre-embryo is a collection of blastomeres formed by cleavage divisions.
To learn more about Fertilization refer : https://brainly.com/question/17120789
#SPJ4
Answer:
the correct answer is b. cleavage division
Explanation:
Which type of archaebacteria lives in environments where there are extremely high temperatures?
Answer:
I hope this helps.
Explanation:
How do convention currents work
Answer:
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
Explanation:
Convection currents are movement of fluid as a result of differential heating or convection. In the case of the Earth, convection currents refer to the motion of molten rock in the mantle as radioactive decay heats up magma, causing it to rise and driving the global-scale flow of magma. The density of a liquid reduces as it is heated. If the liquid is heated far from the surface, such as at or near the bottom of the container, its reduced density is displaced by colder, denser liquid, and the lighter liquid rises to the top where it meets the cooler liquid. The end consequence is that the heat transfer creates a circulation effect up until the boiling point, or the temperature at which all of the liquid is the same. The lesson to be learned from convective heating is to avoid heating liquids traditionally from the surface because doing so will not result in convection currents. The electromagnetic energy from microwaves typically heats from the top down, penetrating just a few millimeters. The movement (agitation) of the water container and the turbulence caused by the boiling surface water turning into steam are what enable heat transmission. It is typical to see superheating with explosive results due to the localized energy absorption by the surface portion of the water, especially if a powdered substance is introduced to the microwaved water. When the powder is mixed with hot water, nucleation sites are created, which might result in a quick ebullition of boiling water.
The glucose-making part of photosynthesis takes place in the.
grana
thylakoids
stroma
Answer:
The glucose making part of photosynthesis takes place in the stroma
explanation:
Stroma is the colorless liquid that surrounds the grana in the chloroplast inside plant cells. The stroma contains grana, and stacks of thylakoids in which photosynthesis is started before the chemical changes are completed in the stroma itself. The stroma functions by synthesizing organic molecules from water and carbon dioxide. In the stroma, an enzyme removes the carbon from carbon dioxide, and then combines it with hydrogen and oxygen and to form a simple carbohydrate molecule (glucose).
PLEASE PLEASE HURRY
Which causes a drop in female hormone levels?
the onset of the menstrual flow
the release of an egg from the ovary
the thickening of the uterine wall
the failure of an egg to be fertilised
Explanation:
the release of an egg from the ovary
I need help pleaseeee
Answer:
Explanation:
1. The genotype is Ff for both
2 The phenotype is having freckles
3. FF, Ff, Ff, ff
4. 75% freckles 25% no freckles
Answer:
1.) Genotype = Ff
2.) Phenotype = having freckles
3.) Possible Genotypes = FF, Ff, ff
Probability of each Genotype = 25% FF, 50% Ff, and 25% ff
4.) Possible Phenotypes = Freckles and no freckles
Probability of each Phenotype = 75% freckles and 25% no freckles
Explanation:
1.) A genotype is the specific combination of alleles which give rise to a trait. Alleles are represented by the letters (F and f).
Heterozygous individuals have one of each type of allele. Therefore, the genotype of the couple is Ff.
2.) Phenotypes are the trait which the genotypes are expressing. When an allele is said to be dominant (like the F allele), it means that individuals with at least one of these alleles will express the associated trait. Remember, heterozygous individuals have one dominant allele (F) and one recessive allele (f). Because there is at least one dominant allele, the phenotype of the couple is to have freckles.
what roles can human beings play to balance nature
Hello!
Roles humans can play to balance nature :
Plant more trees to account for the loss of trees caused by deforestationConserve energy so we don't overuse our natural resourcesCause less pollution by contributing to more eco-friendly activitiesAnswer:
Human can play the following roles to balance nature:
We can decrease the burning of fossil fuels so that less pollution is produced.Family planning will reduce overpopulation to some extent.We should try not to cut trees so that the trees are safe and the habitats of animals aren't destroyed.There should be certain organizations set up that encourage people to plant more trees.The water that is not drinkable should be converted to drinkable water by several means.[tex]\rule[225]{225}{2}[/tex]
The main steps of photosystem 2 include which of the following
Incomplete Question options not given
Photosystem II is the first protein complex in oxygenic photosynthesis's light-dependent processes. It is found in plants, algae, and cyanobacteria's thylakoid membrane.
The thylakoid membrane, which is a part of the chloroplast in plant cells, is where Photosystem I and Photosystem II are found.The products of the light dependent processes are delivered to the light independent reactions as ATP and NADPH.Water molecules are divided into oxygen atoms and hydrogen ions when photosystem II pulls replacement electrons from them.The thylakoid compartment retains the hydrogen ions from the water.High energy electrons are transferred from Photosystem II to Photosystem I in the electron transfer chain.The high-energy electrons in the photosystem received energy from sunlight while they were there.Photosystem I releases high-energy electrons into the atmosphere.The high energy electrons join NADP+ and a hydrogen ion after going via an electron transfer chain.ADP and Pi are combined to create ATP with the help of hydrogen ions passing via the ATP synthases.
So to conclude with we can say that the initial protein complex in the light dependent processes of oxygenic photosynthesis is called photosystem II. It may be found in plants, algae, and cyanobacteria's thylakoid membrane.
Learn more about photosystem II here:
https://brainly.com/question/14427520
#SPJ10
Solve for c
a ( c + b ) = d help me
How does elevation affect climate?
A. It determines whether winds will blow inland bringing moist air, or towards the ocean bringing dry air.
B. It determines how much solar energy an area receives and thus how hot it will be.
C. It determines how dense the air is, and how much heat energy the air can hold.
D. It determines whether winds will blow inland bringing moist air, or towards the ocean bringing dry air.
Altitude affects weather determines how dense the air is and how much heat energy the air can hold.
Option C is the correct one.
What is the relationship between authority and climate?The relationship between climate and altitude is manifested through variations in atmospheric pressure and temperature. Although higher locations are closer to the sun, they tend to receive less heat, becoming colder, in addition to having a smaller thermal amplitude (temperature variation).
With this information, we can conclude that Higher elevations cause temperatures to drop because the higher up in the atmosphere you go the colder it gets due to air pressure in turn causing precipitation to freeze creating snow.
Learn more about altitude in brainly.com/question/18530806
#SPJ1
is there any solution on plant kingdom
Answer:
Bryophytes are found in moist places, fertilization occurs with the help of water. For example, Marchantia, Riccia, etc. Hence bryophytes are called amphibians of the plant kingdom.
Changes in water temperature affect the density of the water. Water density is important for deep ocean currents that move water around the oceans. With increasing greenhouse gases in the atmosphere, the ocean is absorbing more and more heat. The Beaufort Gyre is a circular current in the Arctic. Which of the following is the most reasonable hypothesis as to what would happen to the Beaufort Gyre if the oceans keep warming?
The water would get warmer and would not sink to the bottom, and therefore disrupt the worldwide currents.
The water would get colder and sink to the bottom, then take longer to warm up disrupting currents.
The water would change temperature and begin to circulate in the opposite direction.
The water would get much warmer and cause part of any nearby continental ice sheet to melt.
Answer:
The water would get warmer and would not sink to the bottom, and therefore disrupt the worldwide currents
Explanation:
the warmer water is less dense than the colder water and would not sink, which would interrupt the natural currents with extra external heat added by global warming
in what way does translation change information?
According to the research, translation changes the information of the RNA read to form a polypeptide chain, which is a protein with a linear structure.
What is translation?It is the process by which, from the reading of the genetic code in the mRNA, a protein is created.
It occurs in all living beings and takes place in the cytoplasm, where the ribosomes are found, which play a fundamental role in the process.
Therefore, we can conclude that according to the research, translation changes the information of the RNA read to form a polypeptide chain, which is a protein with a linear structure.
Learn more about translation here: https://brainly.com/question/21757337
#SPJ1
compare and contrast sexual and asexual reporduction
Difference:
The biological process of sexual reproduction requires the input of genetic material from many people. When a flower self-pollinates, for example, the term "individual" might refer to gamete cells developing as a single physical or even genetic organism. I don't want to substitute the word "cell" for "person," either, as that would eliminate instances of acellular biologic entities that reproduce, like viruses. When a piece of a chromosome from one bacterium is injected into another, it recombines and reproduces there, with or without sporulation, which is one instance of what I consider sexual reproduction but which not all viewers would. My notion just requires some genetic material, even in the form of an episome, not gametes. Asexual phases are included in nearly all forms of reproduction, but I regard all of them to be a part of sexual reproduction when they take place throughout a life cycle that also contains an obligatory sexual phase. Brewer's yeast serves as an illustration of the distinction I make because either the diploid or haploid stage, which could be classified as a gametophyte or sporophyte, can be maintained through an infinite number of mitoses. As a result, I consider vegetative propagation to be asexual reproduction.
Now that you have the difference compare the similarties.
Why are chloroplasts more on one side of a cell than the other
You would be referring to the plant cell.
Answer:
Chloroplasts may be seen on all six sides of a plant cell, which is a three-dimensional entity with typically moderately rounded corners (not in the centre because a big central vacuole fills a very large part of the volume). Chloroplasts are constantly being rearranged by the cell since they are not set in place. Chloroplasts are typically located close to so-called periclinal cell walls, which are oriented in the same 2D orientation as the leaf surface under low light. Chloroplasts seem to "escape" to the anticlinal walls in bright light. Better light harvesting in low light by exposing every chloroplast to light and photoprotection by mutual shading in strong light are likely the fitness benefits provided by this behavior. In the dark, chloroplasts also gravitate toward the anticlinal walls. Thin leaves of submerged aquatic plants like Elodea can be used as microscope specimens to observe chloroplast motions. One can gauge how much light gets through a leaf in land plants. What I just said concerning the top layer(s) of leaves' "palisade parenchyma cells" is accurate. Most of the chloroplasts are found in these cells. Numerous cells in the spongy parenchyma under the palisade layer lack well marked peri and anticlinal walls.
How did plant cells incorporate chloroplasts in their DNA?
Chloroplasts must reproduce in a manner akin to that of some bacterial species, in which the chloroplast DNA is duplicated first, followed by binary fission of the organelle (a kind of protein band that constricts so that two daughter organelles bud off). As a result of some chloroplast DNA actually being integrated into the plant genome (a process known as endosymbiotic gene transfer), it is now controlled in the nucleus of the plant cell itself.
Caulerpa is an invasive alga that grows in the sea. It is native to the Caribbean Sea and the Indian Ocean, but was accidently introduced into the Mediterranean Sea in waste water. Caulerpa has now spread over large areas of seabed in the Mediterranean. Populations of native species in these areas have decreased or been wiped out. Suggest how Caulerpa can cause a decrease in the number of species living in ecosystems.
Answer:
A strain of the species bred for use in aquariums has established non-native populations in waters of the Mediterranean Sea, the United States, and Australia. It is one of two species of algae listed in 100 of the World's Worst Invasive Alien Species compiled by the IUCN Invasive Species Specialist Group.8. Which of the following organisms can be heterotrophic and/or autotrophic? a. Volvox b. Euglena c. Oscillatoria d. a, b, and c e. a and b only
Answer:
D
Explanation:
Volvox, Euglena, and Oscillatoria are all autotrophic
Pls solve this fast
Choose the appearance of a liquid in the kettle that is heated to simmer.
Answer:
The liquid in the kettle will be simmering if it is just below the boiling point. The liquid will be hot, but not boiling, and there will be bubbles rising to the surface.
Explanation:
What is the expected phenotypic ratio for a cross between two individuals that are heterozygous for a given trait? Use one of Mendel's pea plant traits as an example.
The expected phenotypic ratio for a cross between two individuals that are heterozygous for a given trait is 3:1.
What is Phenotype?This is referred to the physical characteristics of an organism such as the size, shape etc.
When two heterozygous traits are crossed:
Rr × Rr ⇒ RR Rr Rr rr
The ratio is therefore 3:1 of the dominant to recessive phenotype.
Read more about Phenotype here https://brainly.com/question/22117
#SPJ1
Which best describes the scientists who contributed to our body of knowledge
Answer: you didn't give the options to choose from.. comment on this with the options to choose from so i can help you please
Explanation:
During which period did mammals first appear? a. pleistocene b. carboniferous c. cretaceous d. jurassic please select the best answer from the choices provided a b c d