Answer:
having a longer life span
Explanation: you will be out of eggs by the time your 50
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:
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.
what is apple plus a banana it's really hard only big brain get it
Answer:
Panana is the answer buddy
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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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.
Based on the images taken through Stella’s microscope, which cell structures could be clearly identified using a compound microscope?
Cell structures could be clearly seen using a 400x compound microscope, you could see how it is stuctured and detailed because of the magnification, you can see the cell at 40x but not as clear as you can with 400x
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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:
Chart Identify the placement of items A – E using the drop down menus. A B C D E Which kingdoms contain organisms that are prokaryotes? Eubacteria Fungi Protista Archaebacteria
Answer:
Eubacteria and Archaebacteria
Explanation:
Prokaryotes are single-celled organisms that do not have a nucleus
Eukaryotes are typically multicellular, but definitely do have a nucleus
Eubacteria and Archaebacteria DO NOT have nuclei
Fungi (think mushrooms) and Protists do have nuclei- and belong to the Eukaryote group- which means they DO have nuclei
Answer:
Fungi are in the domain
✔ Eukarya
.
Fungi are in the kingdom
✔ Fungi
.
Explanation:
*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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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 !
I need help on this question will give brainly points must be right.
Answer:
3
Explanation:
The answer is three, I just did it
When two different alleles are dominant and determine the phenotype, this is an example of what?
co-dominance
complete dominance
incomplete dominance
None of the above
Answer:
Complete Dominance
Explanation:
This is complete dominance because both of the alleles are dominant, and there are no recessive alleles :)
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.
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]
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.
*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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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.
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.
Dr. Asfour is telling his participants before he begins the experiment that their participation is completely voluntary and that they
can stop taking part at any time. Dr. Asfour is:
a, providing peer review.
b. debriefing his participants.
c. obtaining informed consent.
d. performing random assignment.
Answer:
c. obtaining informed consent.
Explanation:
im not 100 sure tho
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 of the following structures would normally be found in a plant cell but not in an animal cell? A. cell wall B. cell membrane C. nucleus D. vacuoles
Answer: A) Cell wall
Explanation:
Please note that because it says normally not in an animal cell, the answer may be vacuole, which are rarely in animal cells. However, because cell walls are never found in animal cells, I went with that.
Hope it helps <3
Answer:
Cell Wall
Explanation:
Animals have only cell membrane due to which they move but Plants have cell wall due to which they don't move
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.
When oxygen first was released in the early seas it combined with iron to form
A)RNA
B)DNA
C)proteins
D) DNA molecules
HEEELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
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]
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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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
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 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.
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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Light-dependent reactions
Light-independent reactions
Sun's energy absorbed
Sugars produced
Answer:
The question is unclear but I suppose we're to match the stage of photosynthesis with it's description below.
Light-dependent reactions- Sun's energy absorbed
Light-independent reactions- Sugars produced
Explanation:
Photosynthetic process involves two main stages viz: light dependent stage and light-independent stage. In the light dependent stage, light energy from the sun is trapped or absorbed by the Chlorophyll pigment of green leaves. The absorbed energy is used to split water in a process called PHOTOLYSIS OF WATER.
This process (photolysis) releases protons that build up in the thylakoid membrane to produce a proton pump that generates ATP. At the end of the light dependent reactions, ATP and NADPH molecules are produced.
In the light independent stage which occurs in the stroma of the CHLOROPLAST, the ATP and NADPH molecules produced in the light stage are used to power and reduce carbondioxide (CO2) to synthesize sugar (glucose).