Answer:
Yes.
Explanation:
Yes, Schwann and Schleiden are responsible for the cell theory, both the scientists presented the cell theory in 1839. I agree with the argument of my classmate because the person who first presented cell theory was both Schwann and Schleiden. Schwann works on plant cell whereas Schleiden works on animal cell and formulate cell theory. So my classmate's argument is right about cell theory.
Schwan and Schleiden proposed the first cell theory, suggesting spontaneous generation. Virchow changed it proposing cell division. After many years and the contribution of many researchers, the modern cell theory emerged.
---------------------------------------------------
Schwann studied animal tissues. Through careful observation, he concluded that all animal tissues were made of cells.
Simultaneously, Schleiden arrives at the same conclusion when studying vegetable tissues.
Around 1830, they met and together proposed the first cell theory. The theory stated that:
1. Every living being is made of cells.
2. Cell is the basic unit of life.
3. Cells are originated from spontaneous generation.
Virchow, who studied human tissues, sow the cell in its dividing process.
He proposed that cells were not originated from spontaneous generation, as Schwann and Schleiden had stated.
Instead, he said that cells were the product of other pre-existing cells and were originated by cellular division.
Virchow rejected the third state of Schwann and Schleiden’s ideas.
According to these sequence of events, the original cell theory changed to
1. Every living being is made of cells.
2. Cell is the basic unit of life.
3. Cells are originated by cellular division.
After many years of continuous studies about cells and their functions, the modern cell theory emerged.
In general terms, the modern theory can be resumed as,
1. Every living being -unicellular or multicellular- is made of cells, which are the most basic units of life.
2. Cell control the vital functions of organisms.
3. Cells proceed from preexistant prokaryotic cells, and are originated by cellular division.
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Since the elephant’s diet consists of play material only, where would the elephant get the missing element needed to make collagen (or any protein)?
Answer:
The elephant is a herbivores animal and feeds on plant material that consist of cellulose. Collagen is a type of protein that is absent in plant material and only found in skin, tendons, bones and muscles. The elephant also requires collagen to replace or repair their skin cell in every 2 weeks.
As elephants are unable to consume meat that contains collagen, they get collagen or protein from the plant material only with the help of bacteria or enzymes present in its guts. The bacteria having enzymes that helps in the breakdown of cellulose and access the proteins, fat or sugar present in the plant cell.
Elephants get collagen and other proteins from the vegetables they consume.
We can arrive at this answer because:
Collagen is essential for the maintenance of the skin.However, collagen is found in large amounts in meat.Few vegetables have collagen and elephants only feed on vegetables.However, the demand for collagen in the elephants' body is met by feeding on vegetables rich in cellulose and vitamin C.When cellulose is digested and vitamin C is used in the body, collagen production is stimulated.
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Need Help due in a 1 hour : Earth Science
What hypothesis was validated by using paleo-magnetism?
Question 8 options:
a) subduction
b) hot spots
c) seafloor spreading
Answer:
C). Seafloor spreading.
Explanation:
Paleomagnetism is characterized as the 'study of the account of direction and strength of magnetic fields of the Earth in sediments, rocks, etc.' The hypothesis that was authenticated by using this study would be 'seafloor spreading' by displaying that magnetic reversal as strips of rotating polarity in gradually disseminating seafloor. This description of magnetic stripping by employing paleo-magnetism made the scientists believe that alternate crusts are being frequently made under ocean/sea. Thus, option C is the correct answer.
Which of the following describes a virus?
A. A virus does not have a cell wall, nucleus, and eats.
B. A virus has a cell, a nucleus, and does not eat.
C. A virus does not eat, use energy, or have cells.
D. A virus does not have a cell, produces carbon dioxide, and uses oxygen.
A virus does not eat, use energy, or have cells. The correct option is C.
What is basically a virus?A virus is an infectious microbe made up of a nucleic acid segment (either DNA or RNA) surrounded by a protein coat.
A virus cannot replicate on its own; instead, it must infect cells and use host cell components to replicate itself.
Viruses are bundles of nucleic acid DNA or RNA encased in a protein shell called a capsid.
Viruses are the most abundant life form on the planet, according to some estimates; they are 10 times more numerous than bacteria.
Viruses could have evolved from mobile genetic elements with the ability to move between cells.
Thus, the correct option is C as a virus does not consume food, generate energy, or have cells..
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scientists tried inserting the jellyfish gene that codes for luminescence into bacteria. Not all bacteria where transformed. Which bacteria were transformed?
Answer:
Explanation:
Scientists tried inserting the jellyfish gene that codes for luminescence into bacteria. Not all bacteria where transformed. Which bacteria were transformed? Only the bacteria that do not glow in the dark were transformed.
How would you classify ammonium nitrate?
Answer:
Ammonium nitrate is a class 2 oxidizer
Explanation:
PLEASE ANSWER
Which has been observed in the study of embryology?
A:Species whose embryos have similar traits rarely have a common ancestor.
B:Species whose embryos have similar traits always have similar body forms as adults.
C:All traits present in early embryos remain throughout development.
D:Some traits in certain embryos disappear as the embryo develops.
Is it A,B,C, or D
Answer:
D: Some traits in certain embryos disappear as the embryo develops.
Explanation:
Please tell me if I'm wrong
Answer:
D
Explanation:
Edge 2022
ApH of 6 is how many times more acidic than a pH of 9?
Answer:
by 1.5
Explanation:
Which of the following correctly lists the Earth’s structural (physical) layers from outer most to inner most? (listed left (outer most) to right(inner most))
A. Asthenosphere, Lithosphere, Mesosphere, Outer core, Inner core
B. Inner core, Outer core, Mesosphere, Asthenosphere, Lithosphere
C.Lithosphere, Asthenosphere, Mesosphere, Outer core, Inner core
D. Lithosphere, Mesosphere, Asthenosphere, Outer core, Inner core
Answer:
its d :)
Explanation:
3. Evaluate Information Sodium is an example of an alkali metal. The alkoli metals are
found in the leftmost column of the periodic table, known as Group 1. Use the interactive
periodic table to explore the properties of the following alkali metals: lithium (Li), sodium
(No), potassium (K), rubidium (Rb), and cesium (Cs). The animations demonstrate a chemical
property common to alkali metals: they react with water. How does the reactivity vary
among this group of elements? Why might patterns like this be useful to scientists?
Answer: This might be helpful because t is a good basis for organizing elements because each element has a unique number of protons and atomic mass is an indirect way of organizing elements by number of protons.
Rabbits normally eat some grass as a food source. In a habitat, a new species of grass is introduced that out-competes most of the original species of grass. The new species of grass contains a chemical that is usually toxic and fatal to most rabbits. Assuming that all rabbits in this habitat will eat some of the new species of grass, how will the presence of the new grass most likely decrease the diversity of the rabbit population in this habitat?
Answer:
Well The Diversity will decrease.
Explanation:
If the Grass Is Toxic to the Rabbit than the rabbits will either die from eating the grass, or they will stop eating it and need to find a new food source. this will lead to the to the rabbits that are resistant to the toxic grass being able to reproduce more and therefor becoming more abundant.
The water cycle involves the constant movement of water from the ground to the atmosphere. Which of these
shows the correct order of the movement of water during this cycle?
Answer:
Evaporation, Condensation, Precipitation and Collection
Explanation:
I just referred to water cycle on the internet.
Which of the following is a way that the hummingbird shown is adapted to its environment and way of life?
A. Hummingbirds are related to all other organisms on Earth.
B. Hummingbirds have the ability to hover while drinking nectar.
C. Hummingbirds have ancestors who were larger than they are.
D. Hummingbirds are more closely related to other birds than to humans.
Answer:
b hummingbirds have the ability to hover while drinking nectar
Explanation:
because this allows for power in both the upward and downward beats of the hummingbirds wings
1 point
2. Two main differences between mitosis and meiosis are
A. Mitosis creates body cells with 46 chromosomes each, and Meiosis creates sex
cells with 23 chromosomes each.
B. Meiosis creates body cells with 46 chromosomes each, and Mitosis creates sex
cells with 23 chromosomes each.
C. Mitosis - crossing over occurs, and matching pairs of chromosomes (homologous
pairs) separate
D. Meiosis, two new cells are produced, and they have the total number of
chromosomes (46).
Answer:
mitosis: 1.is cell division
2. daughter cells are identical to the mother cell in terms of the number of chromosomes
3. passes through several phases
meiosis
1. The zygote is the most concrete example of division
2. daughter cells are not the same as the mother cell in terms of the number of chromosomes
3. can be divided into more than two
Muscle cells need more energy than other cells in the human body. Which
cell organelle would you expect to find in abundance in these cells? *
Nucleus
O Chloroplasts
O Mitochondria
O Lysosomes
What is the physical environment where an organism lives?
Answer:
Its A Habitat//Ecosystem
An ecosystem is just all the organisms that live in a place, together with their physical environment. Habitat is the natural environment of an organism.
Variation is caused by what two factors....????
Answer:
mutation,recombination of genes
how are proteins important for the body
Answer:
Your body uses protein to build and repair tissues. You also use protein to make enzymes, hormones, and other body chemicals. Protein is an important building block of bones, muscles, cartilage, skin, and blood.
Explanation:
Osmosis is the diffusion of what across a membrane?
A glucose
B. protein
C. Naci
D. water
Answer:
Water
Explanation:
hope it helps
Explain what would happen to germination speeds if one seed was buried 10 cm deep into the soil, another seed
at 5 cm deep and another seed sitting on the top of the soil. Explain why. (2-3 complete sentences)
WILL GIVE BRAINLIEST TO BEST ONE
Answer:
The seed which is buried deep in the soil won't germinate
because
it won't get sufficient oxygen / airit won't get sufficient sunlight and etc...Answer:
Seed that had been planted 10cm deep won't get enough sunlight and adding water to make it grow just makes the condition even worse.
Seed that had been planted 5cm deep might not get sufficient sunlight because the rays of the sun cannot pass through the soil.
Seed that is on the top of the soil might get carried away by the wind, or dried due to extreme sunlight, or might get carried away by a predator.
can someone help please
Answer:
the balloon would grow in size
temperature
Explanation:
The picture shows fruit produced by two parents and fruit
produced by one of their offspring.
Which of these best describes this inheritance pattern?
х
O codominance because he fruit color of the offspring is
an intermediate form of the parents' fruit color
O codominance because both parents' colors are
expressed in the offspring
O incomplete dominance because both parents' colors
are both visible in the offspring
O incomplete dominance because the fruit color of the
offspring is an intermediate form of the parents' fruit
color
Answer:
incomplete dominance because the fruit color of the offspring is an intermediate form of the parents' fruit color
Sry if I'm wrong, have a nice day.
The given image shows incomplete dominance because the fruit color of the offspring is an intermediate form of the parents' fruit color. The correct option is D.
What is incomplete dominance?When both alleles of a gene are only partially expressed at a locus, it is known as incomplete dominance.
This sort of gene interaction frequently produces an intermediate or distinct phenotype. Additionally called partial dominance.
Two other types of genetic inheritance are codominance and incomplete dominance. It basically means that no allele can prevent or stifle the production of the other allele through codominance.
Incomplete dominance, on the other hand, occurs when a dominant gene does not entirely block the effects of a recessive allele.
Fruit produced by two parents and fruit produced by one of their children are shown in the photo.
Because the fruit color of the offspring is an intermediate version of the fruit color of the parents, it is incomplete dominance.
Thus, the correct option is D.
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oxygen is carried from your lungs through your blood to all your cells by a molecule called
A chlorine
B hemoglobin
C reactants
D active metal
Answer:
B.Hemogoblin
Explanation:
these are the cells cariesd by the molecule
Answer:
b: hemoglobin ..........
Arrange the stages of embryonic development in the correct order.
Answer:
1. egg fertilized to form a zygote
2. cell division in a zygote to form a morula
3. cell division to form a blastocyst
4. differentiation of cells in the blastocyst
5. development of tissues
6. development of organs
Explanation:
Hope that helps!
Answer:
egg fertilized to form a zygote
cell division in a zygote to form a morula
cell division to form a blastocyst
differentiation of cells in the blastocyst
development of tissues
development of organs
A student puts drops of Lugol's iodine solution into the water in the beaker shown. The water turned red. After a short time, the starch solution inside the dialysis tubing turned black. Which function of the cell membrane was the student demonstrating?
Answer:
Cell membrane as a semi permeable membrane.
Explanation
A semi permeable membrane is the one that would only allow water,ions and certain molecules to pass through it by diffusion while restricting other large molecules from passing through.
Details in the attachment.
What is the answer for
34
Answer:
Explanation:
d
Tonya is modeling the discovery of electromagnetic induction. Which procedure should she use?
O moving a magnet into a coil of wire in a closed circuit
O moving a magnet into a coil of wire in an open circuit
O bringing a compass near a wire that has no electric current
O bringing a compass near a wire that has an electric current
Answer:
Moving the MAGNET to a CLOSED circuit
Explanation:
Answer:
A
Explanation:
What force will a cannonball have if it has a mass of 4 kg and accelerates it to 110 m/s²?
Does anyone know why plants need carbon dioxide from the air?????????
Answer:
For plants to perform photosynthesis they require light energy from the sun, water and carbon dioxide.
Answer:
yes plants require sunlight , water and carbondioxide for photosynthesis. So they are important for plants
The air pressure at City A is 1,018 mb, and the air pressure at City B is 980 mb. What will most likely occur due to the pressure gradient present between City A and City B?
Answer:
There are three main causes of change in population: births, deaths and imigration flow. The Coronavirus has affected two of these three factors. The death rate has increased substantially since the pandemic hit. In under 6 months, more than 200,000 people have died. This drastic number of deaths in such a short amount of time is bound to decrease the population of the United States by a considerable margin. Immigration flow has also halted since the beginning of the pandemic. Travel bans and the close monitoring of borders has ensured that the number of immigrants entering the United States has decresed greatly.
Most likely the pressure gradient present between City A and City B that is City A is 1,018 mb, and City B is 980 mb, will - The high-pressure system at City A will create winds that blow toward the low-pressure system at City B.
A force exerted on a surface by the air above it as gravity pulls it to Earth is called air pressure or atmospheric pressure. Atmospheric pressure is commonly measured with a barometer.
it determines wind and weather patterns across the globewinds move from high air pressure to low air pressureIt leads directly to wind and influences the speed and direction of that wind.Pressure differences or gradients also affect larger weather systems like storms.Thus, Most likely the pressure gradient present between City A and City B that is City A is 1,018 mb, and City B is 980 mb, will - The high-pressure system at City A will create winds that blow toward the low-pressure system at City B.
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What must be found in each of the two daughter cell in order for them to be functional??? 15 POINTS!!!