Oceanic crust is younger than continental crust because it undergoes continuous formation and destruction through seafloor spreading and subduction.
The age difference between oceanic crust and continental crust is primarily due to the process of plate tectonics. Oceanic crust is constantly forming at mid-oceanic ridges through a process called seafloor spreading. This occurs when molten material from the mantle rises to the surface and creates new crust. As new crust forms, older crust is pushed away from the ridges, gradually moving away from the spreading center.
In contrast, continental crust is older because it is not continuously formed or destroyed like oceanic crust. Continental crust is composed of various rocks, including granite, and is typically thicker and less dense than oceanic crust. It is primarily formed through the collision and accretion of tectonic plates over long periods of time.
Additionally, oceanic crust is also subject to subduction, where denser oceanic plates are forced beneath less dense continental plates. This process occurs at convergent plate boundaries. When oceanic crust subducts, it is eventually recycled back into the mantle, which contributes to the overall young age of the oceanic crust.
In summary, the continuous formation of new oceanic crust at mid-oceanic ridges, along with the subduction of older oceanic crust, results in the relatively young age of oceanic crust compared to the older continental crust.
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What type of human activity would most likely cause an overgrowth of duckweed in a pond?
Answer:
fertilizing nearby farm fields
Bees, which are known for aiding in pollination, help with which process?
A. enabling pollen to grow fruit to encase the sperm and egg
B. enabling pollen to grow a tube to transfer sperm to the egg
C.transferring pollen from the anther to the pistil
D. transferring pollen from the ovule to the ovary
Please hurry and answer for me plz!
Bees, which are known for aiding in pollination, help with transferring pollen from the anther to the pistil. The correct option is C.
What is pollination?Transferring pollen grains from a flower's male anther to its female stigma is the process of pollination.
Every living thing, including plants, strives to produce progeny for the following generation. Making seeds is one method through which plants can create progeny.
Bees are necessary for the growth of plants and flowers. They use the pollination process, in which they move microscopic pollen grains from one blossom of one sort of plant to another flower of the same kind.
The transfer of this pollen aids in the growth of the blooms which will ensures that a plant will produce full-bodied fruit and a full set of viable seeds.
Thus, the correct option is C.
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Answer:
c
Explanation:
it was expert verified
Where does the waste material in the body come from and why does the body need to get rid of these waste materials? Please help me!
Answer:
These waste materials are excreted out by the process of diffusion through general body surface. The removal of waste will help prevent the body from becoming ill, it will help clean the body inside and out, and will protect the body from infections.
Explanation:
what cells have peroxosomes?
Answer:
Peroxisome, membrane-bound organelle occurring in the cytoplasm of eukaryotic cells. Peroxisomes play a key role in the oxidation of specific biomolecules. They also contribute to the biosynthesis of membrane lipids known as plasmalogens
Explanation:
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The nucleus is surrounded by a membrane. This membrane has pores that enable the nucleus to carry out one of its functions. What do these pores allow to happen?
A) nutrients that are stored in the nucleus to enter the cytoplasm
B) proteins that are made in the nucleus to pass into the cytoplasm
C) waste substances to enter the nucleus
D) genetic information to pass from the nucleus to the cytoplasm
Answer:
D
Explanation:
The nucleus contains the genetic information of the cell. When the cell needs instruction to make protiens, Rna carries those instructions out of the cell because DNA is too large to fit through the pores. Proteins are made in the ribosomes.
Explain the primary, secondary, and tertiary structures of proteins.
Answer:
yes it is b
Explanation:
Explain the primary, secondary, and tertiary structures of proteins.
1. A study was created to test the effects of jazz on people's sleep patterns. The hypothesis of the
experiment was that if people listened to jazz music as they fall asleep, they will sleep for longer
periods of time. For the experiment, 2 groups of people were created. One group was placed in a
quiet room where they went to sleep and they were timed on how long they slept. The other
group was placed in a room where jazz music played softly as they began to sleep and played
throughout the night. As each group awoke, their sleep times were monitored.
What is the dependent variable in this experiment?
Answer:
The correct answer is -
The dependent variable - Sleeping time or amount of both test groups.
Explanation:
In this experiment where the effect of jazz music on the sleeping pattern of people is being tested. For this study, there are two test groups, a control group with a quiet room and an experiment group with slow jazz music during their sleeping and monitored the time when both groups of people sleep.
So, the independent variable is slow jazz music here which is affecting the sleeping amount of time people sleeping, so the dependent variable is the time people sleep
How is a hybrid different from its originating crops?
A hybrid crop is different from the original crops as they contain genes from other crops that are beneficial for them.
A hybrid has the genetic makeup of both of its parent crops but may have completely distinct external characteristics. This is due to the fact that two recessive genes from both parent crops can be fused together to create an outward visible impact in the hybrid.
Hybrid plants are the result of the cross-pollination of two plant varieties and the propagation of the seed resulting from the mix. The plant that emerges from this seed combination is known as a hybrid plant.
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What are the 3 parts of the earths biosphere
Answer:
lithosphere, hydrosphere, and atmosphere
Explanation:
Answer:
lithosphere, hydrosphere, and atmosphere
thermal energy transfer by conduction happens when heat moves from one object to another by
Answer:
Touching
Explanation:
Conduction is when you transfer energy by touching or direct
Answer:
touching
Explanation:
how does proper waste management help prevent pollution
Answer:
When waste is properly managed by recylcling, it does not end up in mills or habitats. Therefore it does not pollute the environment.
What is gas exchange
Answer
Gas exchange is the delivery of oxygen from the lungs to the bloodstream
Explanation:
It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
write it in your own words, also can i have brainliest
Answer:
XD....
Explanation:
Gas exchange is the physical process by which gases move passively by diffusion across a surface.
How are your coping mechanisms for feeling stressed
related to cellular homeostasis?
When a cell has too much of one thing, homeostasis gets rid of some of it and balances the cell out. Just like when you have too much stress, you find ways (coping mechanisms) to get rid of some of it.
Explanation:
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What types of RNA are produced from
transcription?
Answer:
The end product of transcription is an RNA molecule. Hence, copying the information of genes in the genome into an RNA occurs during the transcription. The three main types of RNA produced by transcription are mRNA, tRNA, and rRNA. Further, t ranscription is the first step of protein synthesis.
Explanation:
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can anyone help me with number 2
Answer:
Tokyo
Explanation:
It is near a fault line.
PLEASE HELPPP I WILL GIVE BRAINLIEST What effect does starvation or suffocation have on the process of cellular respiration and how would this affect the organism as a whole. include these words: carbon dioxide, glucose, oxygen, water, ATP, reactant, product, food, fermentation, and anaerobic respiration. Please helppp
Answer:
Explanation:
This question seeks to test the knowledge of anaerobic respiration during the process of glycolysis. During intense exercise (or suffocation) the energy/ATP produced (for the short period of about 2 minutes) is as a result of the breakdown of glucose in the absence of oxygen (known as anaerobic glycolysis).
When an individual is fasting or experiencing starvation, the glycogen storage is quickly converted to glucose and then released into the body for cellular breakdown or respiration for the production of energy or ATP. Glycolysis leads to the formation of pyruvate; during suffocation/exercise, the pyruvate (serves as reactant) undergoes fermentation to either produce lactate in humans or ethanol and carbon dioxide in yeast cells (where lactate, ethanol and carbon dioxide serve as products).
Hence, starvation can be said to deplete glycogen storage while suffocation or anaerobic respiration (breathing in the absence of oxygen) causes the cellular breakdown of glucose (glycolysis) to be anaerobic. However, when the glycogen storage starts getting depleted, stored lipids starts getting converted to energy also in the presence of water in body.
It should be noted that the glucose (which is stored as glycogen) is synthesized/obtained from the food we eat.
a food web is a diagram of feeding relationships that includes multiple intersecting food___. (blank)
Answer:
chains
Explanation:
a food web is a diagram of feeding relationships that includes many intersecting food chains.
What are the subunits (monomers) of DNA and their function? O Monosaccharides that provide quick energy for the cell. O Lipids that store energy and provide insulation. O Proteins that provide the building blocks for the structures of organisms. O Nucleotides that store information.
Answer:
Nucleotides that store information
Explanation:
Deoxyribonucleic acid, commonly known as DNA, is one of the two nucleic acid biomolecules found in living systems. DNA is a polymer made up of long chains of monomeric units called NUCLEOTIDES. Nucleotides consists of three major subunits or parts namely: phosphate group, nitrogenous base (A,T, G, C) and a five-carbon sugar (deoxyribose).
Nucleotides are responsible for the functional and structural characteristics of DNA, which is to store GENETIC INFORMATION in living cells.
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identify the biotic and abiotic factors is figure 11
illustrate how these figures interact in this ecosystem
Answer:
biotic would be things like the grass and that reindeer while abotic things would be like the snow on the ground
Explanation:
Please Help me find 5 safety violations or more
Answer:
no goggles, smelling the substance and not wafting it, there is liquid on the ground, not being careful of surrounding (the person holding the box), and someone is on the ground during an active experiment
Explanation:
whats the difference from products and reactants
The apartment was so cool but there is no bus stop within miles and I don’t have a car rent or not rent
Answer:
um it depends on how much money you have at that point
Answer:
what??...
Explanation:
How far does a runner travel if they maintain a speed of 8.5 m/s for 240 s?
Which is a characteristic of the part of the atom marked
"A"?
It contains most of the mass.
It is negatively charged
It is mostly empty space.
It is composed of electrons.
Answer:
It contains mostof the mass.
Explanation:
I just took the assignment.
When an atom loses an electron, it becomes a?
GIVING , ⓉⒽⒶⓃⓀⓈ and
1. The spores on a fern are found:
in the fruit
in the roots
under the leaves
inside the flowers
2. Fern spores usually form during:
spring
winter
summer
fall
3. Why must the plant which grows directly from the fern spore be wet?
in order to produce a seed
so that the egg can be fertilized
so that it can grow
4. Spores are formed in:
ovaries
spore cases
anthers
5. Ferns grow by:
photosynthesis
reproduction
mitosis
6. How do spores help sustain the population of ferns?
Spores do not have any natural predators.
There are million of spores that are made by a single plant to help keep its population.
Spores can hide under rocks for long time before maturing into an adult plant.
Spores can live for a long time without maturing into an adult plant.
7. Choose all the right answers.
When the leaf of a fern touches the ground, it may produce a new plant:
by planting a spore
by vegetative reproduction
by growing roots at the point of contact
by budding from its stem
Answer:
1: C. They are found contained in a casing, called sporangia, and grouped into bunches, called sori, on the underside of the leaves.
2: C. The sporophyte generally releases spores in the summer. Spores must land on a suitable surface, such as a moist protected area to germinate and grow into gametophytes.
3: B: Moisture is needed for germination, growth and fertilization and high humidity for prothalli and young developing ferns after fertilization.
4: B. In ferns, spores are contained within cases called sporangia that are located on the underside of leaves.
5: C. Each spore grows into a photosynthetic prothallus (gametophyte) via mitosis. Because mitosis maintains the number of chromosomes, each cell in the prothallus is haploid.
6: D. the reason why that's the answer is because I read a national geographic paper and it said that spores can live for over a million years without maturing into an adult plant .
7: A and B. Walking fern also has another, asexual, way of reproducing. If the long extended leaf tip touches soil, a new plantlet can form at the tip, produce roots, and become a new plant. The new plant can then grow a long leaf which touches the ground and sprouts another plantlet. In this way the colony gets larger and larger.
I hope this helped, have a great day! :)
8
An ocean food chain is shown below. Which organisms represent the trophic level
containing approximately 1% of the initial amount of solar energy (1000Kcal) acquired by
the phytoplankton?
2
Humans
Copepods!
Herring
Phytoplankton
Sand eels
OOOO
herring
humans
sand eels
copepods
Answer:
copepoda show the initial 1% amount of solar energy acquired by the phytoplankton
Help me please first one who answer it i will give the brainliest
Answer:
1. About 40 degrees
2. 60 degrees
3. Enzyme A
Explanation:
Hope this helps you
Answer:
Imagine a science fiction movie in which a scientist creates a new species of organism. The scientist generates a whole population of the organism entirely through cloning of the males and females and then leaves them on an island. Explain why the population of clones would struggle to evolve if there was a major environmental change on the island?
Explanation:
⚠️⚠️which of the following statements is true for exocytosis⚠️⚠️
A) it does not require energy
B) it helps the cell take in large molecules
C) it occurs without the help of any cell organelle
D) it is a form of active transport
Answer:
A it does not require energy
Explanation:
beacause i said so
Compare the role of tumor suppressor genes to proto-oncogenes.