Answer:
D. Several cells are in the process of dividing into two new cells
Explanation:
The universal cell theory which was proposed in 1838 and contributed by three scientists namely: Theodor Schwann, Rudolf Virchow, and Mathias Schleiden, consists of three components namely:
1) Cell is the basic and functional unit of life
2) All living organisms are made up of one or more cells.
3) All existing cells arise from pre-existing cells.
Hence, in this question involving a scientist who is observing living Cells in a Petri Dish under a Compound Light Microscope, the observation that "Several cells are in the process of dividing into two new cells" provides evidence to support one of the three components of the cell theory ( all living cells arise from preexisting cells).
Organisms which must survive by taking food from other plants or animals are called?
Answer:
Parasite
Explanation:
or a parasitic relationship
Answer:
theives
Explanation:
what is the average human body temperature?
Answer: average oral temperature is 97.5˚ or stated as 36.5–37.5 °C
Explanation:
Answer:
98.6 degrees Fahrenheit.
Explanation:
Why is mitochondria regarded as power House of the cell.
Why is chromosome responsible for transmission of traits.
Answer:
Mitochondria are known as the powerhouse of the cell because it is responsible for the extracting energy from food through cellular respiration. The energy is released in the form of adenosine triphosphate (ATP) it is an energy currency of the cell.
Explanation:
Fasttttttttttttttttttttttttttttttt 15 points
Answer:
thanks
Explanation:
b is helpin
Answer:
b
Explanation:
A __________
mutation occurs when a base in the DNA sequence is replaced by a different
base.
Answer:
Substitution Mutations
Explanation: A substitution mutation occurs when specific bases (A, T, C or G) in a gene are swapped for different ones. This type of mutation doesn't cause a difference in the number of bases like insertion or deletion mutations do. Substitution mutations just switch out one or more bases for different ones.
Hope this helps :3
A substitution mutation occurs when a base in the DNA sequence is replaced by a different base.
What do you mean by substitution mutations?Substitution is a type of mutation in which one nucleotide is replaced by a different nucleotide. The term can also refer to the replacement of one amino acid in a protein with a different amino acid.
Base substitutions are the simplest type of gene-level mutation, and they involve the swapping of one nucleotide for another during DNA replication. For example, during replication, a thymine nucleotide might be inserted in place of a guanine nucleotide.
Substitution mutations can be good, bad, or have no effect. They cause three specific types of point mutation: silent, missense, and nonsense mutations.
Learn more about substitution mutations:
https://brainly.com/question/26486518
#SPJ6
◘HURRY PLEASE◘
↓↓↓↓↓↓↓↓↓↓↓↓↓↓
Answer:
Carbonhydrates
Explanation:
Answer:
Lipids
Explanation:
It's in the name : Phospholipid
Any lipids encompass molecules like fatty acids.
Need help please?????
Answer:
Only 10% of the energy is transferred to the next level.
Explanation:
The pyramid base contains producers (make their food through inorganic substances like photosynthesis), they're called producers.. this is then passed through other organisms by consuming. Keep in mind 90 percent of the energy is lost as heat.
1. A rabbit can cover a distance of 80 min 5 s. What is the speed of the rabbit?
Answer:
[tex]\boxed {\tt 16 \ m/s}[/tex]
Explanation:
Speed can be found by dividing distance by time.
[tex]s=\frac{d}{t}[/tex]
The rabbit travels 80 meters in 5 seconds.
The distance is 80 meters and the time is 5 seconds.
[tex]d= 80 \ m \\t- 5 \ s[/tex]
Substitute the values into the formula.
[tex]s=\frac{80 \ m }{5 \ s}[/tex]
Divide.
[tex]s= 16 \ m/s[/tex]
The rabbit's speed is 16 meters per second.
What is the name of the enzyme that breaks down:
a. Protein?
b. Carbohydrate?
c. Fat/oil?
Answer:
b. Carbohydrate
Explanation:
_______ laws of motion explained Kepler's proposal of elliptical orbits.
Answer:
newtons
Explanation:
Answer:
True
Explanation:
It's correct
Type of RNA that brings specific amino acids to the ribosomes
People's choices can have a positive or negative effect on their health. Describe one positive choice and one negative health choice a person could make. Be sure to explain how each could impact an individual's health and, if applicable, the health of others.
Answer: One positive is they can eat whatever they want, whenever they want. (If they have money) a negative also since people have the freedom to choose what they eat it can impact on their health.
Explanation: Positive Explanation: if someone wanted to have a good cake every once in awhile they can, because no one is telling them not to(unless they don't have money, or is dietbet/on a diet.)
Negative: Since people are eating whatever they want they can CAUSE SERIOUS HEALTH PROBLEMS, causing you to be diabetic, have cancer, poor exercise also can lead to not be able to walk everyday, being unable to walk, can lead to early death. It could affect others because they'll be worried about you, maybe even have to pay for your house bill because you can't work. problems can lead up to more problems.
One positive choice someone can make would be drinking more water. One negative choice someone can make would be smoking too many cigarettes. Drinking more water can boost your health by decreasing chances of digestive problems and increasing blood pressure. Also, smoking too many cigarettes can lead to heart diseases, lung diseases, and diabetes.
A student used a microscope to observe Elodea submerged in a solution. The student observed the cell cytoplasm pull away from the cell wall and clump together in the center of the cell. Which statement best explains why this occurred? A-The cell was submerged in a hypertonic solution. B-The cell was submerged in a hypotonic solution. C-The cell was submerged in a pure solution. D-The cell was submerged in an isotonic solution.
Answer:
A
Explanation:
The correct answer would be that the cell was submerged in a hypertonic solution.
A hypertonic solution is a solution with a higher concentration of solutes than that of the cytosol of a cell suspended in it. When a cell is suspended in a hypertonic solution, water moves osmotically from the cytosol to the hypertonic solution. This causes the cytoplasm to collapse and the cell becomes flaccid.
The correct option is A.
Answer:
D. The cell was submerged in a hypertonic solution.
Explanation:
Plant cells have two organelles that animal cells do not contain. Name the two organelles that can be found only in plant cells and describe what each of those organelles do. Please answer soon
Evan's nightly chores include washing dishes. His mother cooks everything she prepares a bit too long. Because of this, Evan spends a lot of sweat, effort, and time washing dishes. He sees a commercial on television that claims a new dishwashing detergent, called Brand X, cuts through grease better than its competitor, called Brand Y. They back up their claim with testimonials from people who say they've used this new detergent.
What is a possible testable question (in correct format) that Evan might ask for in this scenario?
IV:
DV:
Answer:
product X and Y need to be in a controlled test to make see how they do undergoing the same things.
hope this helps :)
Explanation:
Which step is the beginning of photosynthesis?
Answer:
light dependant reactions
Explanation:
Photosynthesis is carried out by green plants. The initial step of photosynthesis is the photolysis of water. This is a part of the light reaction.
What is photosynthesis?Photosynthesis is completed in two steps: the light-dependent reaction and the light-independent reaction. The sun is required for the light-dependent reaction. Two photosystems are involved in the light reaction. Light reaction starts from photolysis of water.
The reaction starts at photosystem II (PSII). At this site, the photolysis of water takes place. As a result, sunlight causes the water to break and electrons to be released. This electron moves to plastoquinone. During the electron movement, protons are pumped to the thylakoid lumen.
From the plastoquinone, an electron moves to the cytochrome complex and then to the PSI complex through plastocyanin. From the PSI complex, the electron moves to NADP reductase to form NADPH. All the protons present in the lumen move through the ATP synthase complex, and ATP is produced. The journey of electrons starts with the photolysis of water.
Hence, photosynthesis starts with the breakdown of water molecules.
To learn more about photosynthesis, refer to the following link:
https://brainly.com/question/1757345
#SPJ6
Which of these are the most common in a cell? sugar? protein? fat? or water? also im stupid and dont know what class it would be in- all i know is that its in science
Answer:
i would say protein and fat
Explanation:
What do you still wonder about why the fossils of Mesosaurus that once lived together are found in different locations on Earth now?
Answer:I got You guys yall are like family here is the answer
Explanation: What I still wonder about the Mesosarurus that once lived together are found on different locations of the world. One question is what if the animals did swim across the mid ocean ridge? Another question I have is why would the plate boundaries separate for example what caused the divergent plate to suddenly start moving. My last question is why would the plate boundary not suddenly move apart but move gradually over time apart from one another.
The fossils of Mesosaurus that once lived together are found in different locations on Earth now due to a variety of reasons like a mid-ocean ridge, movement of plate boundaries, and continental drift.
What do you mean by Fossils?Fossils may be defined as the dead and organic remains of past living organisms including plants and animals that were buried and preserved deep in the soil millions of years ago.
According to the context of this question, the fossils that once lived together are found in different locations on Earth now itself due to numerous reasons which are described above. These reasons are responsible for some fragmentation of the earth's surface and these fossils were shifted to the part where they are hard or impossible to find.
But in this modern era of science and technology, each and everything is possible to search out. So, this might be the possible reason for the appearance of fossils of Mesosaurus that once lived together are found in different locations on Earth now.
To learn more about Fossils, refer to the link:
https://brainly.com/question/11829803
#SPJ2
Question 1
Stephen predicted that seeds would start to grow faster if an electric current traveled
through the soil in which they were planted.
a.Draw Conclusion
b.Test the hypothesis with an experiment
c.Recognize a problem
d.Form a hypothesis
10 points
Answer:
This question is asking to identify which step of scientific method the statement depicts. The answer is:
d.Form a hypothesis
Explanation:
Scientific method is the series of sequential steps that aims at solving a problem. These sequential steps include:
- Asking a question/make an observation
- Form a hypothesis
- Test the hypothesis via an experiment
- Analyze the result
- Draw conclusion
According to this question, Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted. The problem of this investigation, which has already been identified, is whether seeds will grow faster if an electric current is applied to the soil.
However, the next step is to form an hypothesis, which is a testable prediction given to answer a question or solve an observed problem. In this case when Stephen predicted the outcome of the investigation, he was FORMULATING A HYPOTHESIS.
guys can u please ASAP
1. Which of the following is provided directly by the sun to plants for photosynthesis?
A. Energy
B. Carbon dioxide
C. Oxygen
Answer:
energy is provided by the sun
3. What do you notice about the negatively charged atom of one atom in one molecule and the positively
charged atom of another water atom when they touch?
Answer:
i believe it is they create a chemical compound
Explanation:
When the negative atom within one water molecule "touches" a positively charged atom of another water molecule, they form a hydrogen bond.
The chemical formula for water is H2O. What this means is that a single water molecule is made up of:
a Single Oxegen atomtwo Hydrogen atomsThe negative pole of the water molecule is the oxygen atom, which is attracted to the positive pole of neighboring water molecules that are formed by their respective hydrogen atoms.
The electronegativity of the atoms involved causes the oxygen atom of one molecule of water, and the hydrogen atoms of another, to share electrons with it, thus forming a covalent bond.
For more information on covalent bonds see:
https://brainly.com/question/10863848?referrer=searchResults
Which of the following hazards can severely harm a worker's lungs?
heat exposure
vehicle hazards
bins and silos
excessive noise
Which of the following hazards can severely harm a worker's lungs?
A). Heat Exposure.
Explanation:
In terms of weather/overall Heat: Inhaling hot air, induces airway constriction making it difficult to breathe. This can be especially so with people with lung conditions. It's also found that this can cause COPD and many respiratory air conditions.
In terms of fire: Of course, it's known that smoke from fire can have a terrible effect on your lungs. It can restrict oxygen flow, which can and most likely be deadly.
Why it's not the other options:
b). Vehicle Hazards: This one would most likely have no or little correlation with lung health. Also, it's not specific enough.
C). Bins and silos don't have as much effect on the lungs as Heat exposure does.
D). Excessive noise would effect mainly the ears, not lungs.
Answer:
bins and silos
Explanation:
In areas with extremely high population density, which of the following is true?
Answer:
i cant see the following
Explanation:
What is its primary function of the structure of a plant cell?
Answer:Chloroplasts are organelles that are crucial for plant cell function. These are the structures that carry out photosynthesis, using the energy from the sun to produce glucose. In doing so, the cells use carbon dioxide, and they release oxygen.
Explanation:hope this helps
In all organisms, the cell is the fundamental unit of life. Plants, like animals and humans, are made up of multiple cells. The cell wall of the plant cell gives the cell its shape and covers the cell. Other organelles, in addition to the cell wall, are associated with various cellular activities.
What organelles are present in cell ?
Plant cells are eukaryotic cells that differ from other eukaryotic organisms in several fundamental ways. There is a nucleus and similar organelles in animal and plant cells. The absence of a cell wall outside of the cell membrane is one of the plant cell's distinguishing characteristics.The building blocks of plants are called plant cells. The primary function that plant cells perform is photosynthesis.The chloroplasts of a plant cell are where photosynthesis takes place. It is the way that plants use sunlight, carbon dioxide, and water to prepare food. During the process, ATP is produced as energy.Water and nutrients are transported from the roots and leaves to various parts of the plant by a few plant cells.A mature, higher plant's cells become specialized to carry out particular vital functions that are necessary for their survival. Some plant cells are responsible for storing food, while others transport water and nutrients.Parenchyma cells, sclerenchyma cells, collenchyma cells, xylem cells, and phloem cells are the specialized plant cells.To know more about cell check this:
brainly.com/question/25815882
#SPJ2
Drag the tiles to the correct boxes to complete the pairs.
Match the correct methods of irrigation.
involves distributing water over the
surface of the soil
involves use of pressurized nozzles
to spray water in a shower
involves use of advanced version of
sprinkler irrigation
involves use of emitters to control the
flow of water
involves the use of perforated pipes
sprinkler irrigation
arrowRight
sub-irrigation
arrowRight
surface irrigation
arrowRight
variable flow irrigation
arrowRight
trickle irrigation
arrowRight
Answer:
Surface Irrigation involves distributing water over the surface of the soil
Sprinkler Irrigation involves use of pressurized nozzles to spray water in a shower
Variable flow irrigation involves use of advanced version of sprinkler irrigation
Trickle Irrigation involves use of emitters to control the flow of water
Sub-irrigation involves the use of perforated pipes
Explanation:
Surface Irrigation involves distributing water over the surface of the soil by allowing water to flow into the farm from irrigation channels.
Sprinkler Irrigation involves use of pressurized nozzles to spray water in a shower on the plants.
Variable flow irrigation involves use of advanced version of sprinkler irrigation. It has a variable-flow control knob on it to vary the output and flow of water. It also ensures uniform water distribution.
Trickle Irrigation involves dripping water onto the soil at very low rates through a system of tiny pipes fitted with outlets called emitters or drippers in order to control the flow of water.
Sub-irrigation involves the use of perforated pipes to apply water below the soil surface in order to raise the water-table near the plant root zone as well as to remove excess water.
Answer:
Surface Irrigation involves distributing water over the surface of the soil
Sprinkler Irrigation involves use of pressurized nozzles to spray water in a shower
Variable flow irrigation involves use of advanced version of sprinkler irrigation
Trickle Irrigation involves use of emitters to control the flow of water
Sub-irrigation involves the use of perforated pipes
Explanation:
What happens during the S phase of Interphase?
a
cell growth
b
DNA synthesis
c
the organelles are copied
d
the nucleus divides
Answer:
I am pretty sure that the answer is D
Explanation:
The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
Answer:
d
Explanation:
took the quiz
Which of the following is NOT found in the cell membrane:
Nucleic acids
Cholesterol
Proteins
Galactose
Phospholipids
Answer:
nucleic acid are not found in the the cell membrane.
Explanation:
They are only found in ribosomes and the nucleus as either DNA or RNA
Answer:
[tex]\boxed {\tt Nucleic \ Acids}[/tex]
Explanation:
Nucleic acids are the monomers of genetic material, such as DNA and RNA. These structures are found in the nucleus and ribosomes because DNA is stored in the nucleus, RNA is made in the nucleus, and RNA is used to make proteins in the ribosome.
Cholesterol, proteins, galactose, and phospholipids are all cell membrane components. Nucleic acids are not. We know they are in the nucleus and ribosomes. Therefore, the correct answer is nucleic acids.
Which of these events happens immediately before cell division occurs?
A. The cell's DNA is distributed evenly throughout the cell.
B. The cell's surface-area-to-volume ratio increases.
C. The cell's volume decreases more than its surface area.
D. The cell's genetic material is copied.
Answer:D. The cell's genetic material is copied.
Explanation:because is right !:}--->:)>
Need help asap!!
Two organisms mate and produce infertile offspring. Which is a true statement about why it is not able to reproduce?
A. The parents are a different genus and species
B. The parents are a different species, but the same genus
Answer:
a
Explanation:
a is the correct answer
The statement which is true about why it is not able to reproduce is that the parents are a different genus and species. Thus, the correct option for this question is A.
What is Species?Species may be defined as the collection of organisms that can significantly reproduce with one another in nature and produce fertile offspring.
According to the context of this question, the process of speciation takes place when the members of similar populations no longer interbreed with one another in order to produce fertile offspring within their natural environment. So, the mating of two organisms can not produce fertile offspring until they belong to the same genus and species.
Therefore, the statement which is true about why it is not able to reproduce is that the parents are a different genus and species. Thus, the correct option for this question is A.
To learn more about Speciation, refer to the link:
https://brainly.com/question/2113835
#SPJ2
Identify the process in which the cell strives to maintain dynamic equilibrium:
homeostasis
turgor pressure
cytolysis
plasmolysis
Answer:
homeostasis
Explanation:
Homeostasis refers to the ability of the cell to keep a constant and stable environment. This includes chemical, physical, and biological components.
Cells need to regulate their environment despite the conditions outside of the cell. They need to be able to quickly adapt to changes to avoid harm to the cell.