Section 10.3
How does a cell control the process of cell division?
In cell division, the cell that is dividing is called the "parent" cell. Cells regulate their division by communicating with each other using chemical signals from special proteins called cyclins. These signals act like switches to tell cells when to start dividing and later when to stop dividing.
Cells control their division by communicating with each other using chemical signals from special proteins which is known as cyclins.
What is Cell division?Cell division is defined as the process by which a parent cell divides into two daughter cells usually as part of a larger cell cycle in which the cell grows and changes its chromosomes before dividing.
A single cell divides to give rise to two cells where these two cells then divide to form four cells, and so on. This process is called "cell division" and "cell reproduction" because new cells are formed when old cells divide. This plays an important role in all living organisms which is essential for growth, repair and reproduction.
This process helps in:
Renewing of damaged cells. Production of new cells from older ones.Thus, cells control their division by communicating with each other using chemical signals from special proteins which is known as cyclins.
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The researchers set up experimental and control microcosms, or small artificial ecosystems, to measure the release of minerals from rocks. First, they placed rock fragments of volcanic origin, either granite or andesite, into small glass containers. Then they made a suspension of water and macerated (chopped and crushed) moss of the species Physcomitrella patens. They added this mixture of water and moss to the experimental microcosms. For the control microcosms, they filtered out the moss and just added the water. After 130 days, they measured the amounts of various minerals found in the water in the control microcosms and in the water and moss in the experimental microcosms. How did the setup of the control and experimental microcosms differ
Answer:
The correct answer is - Control microcosms did not contain living moss, while experimental microcosms did contain living moss.
Explanation:
The difference between the control microcosms and experiment Microcosms is, the presence of the living moss in the experimental group whereas the control group does not contain living moss.
The independent variable in this research setting is the presence or absence of the living moss and for the control group, the mosses are filtered out and only added the water.
what happens with abnormal cells in our body
Answer: Cells become abnormal if their DNA which carries the instructions they need becomes damaged.
Explanation:
i took the test
If the diploid number in a liver cell is 52, how many chromosomes are there in the egg of this organism? _________
☁️ Answer ☁️
annyeonghaseyo
Your answer is:
26.
Hope it helps.
Have a nice day noona/hyung!~￣▽￣❤️
Answer:
26
Explanation:
Hope this will help
What part of the endocrine system is most likely being affected?
Answer:
i think its
Pituitary Gland<
Explanation:
The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.
Which of the following correctly compares the oxygen isotopes 16O and 18O?
PLEASE HELP I DIDN'T STUDY
Answer:
The PH at which an enzyme will function best is;
In the optimal range
Explanation:
Every enzyme has an optimal pH value which is specific for the enzyme, and where their maximum activity of the enzyme is observed, which is known as its optimal pH
When the enzyme is placed in a different pH, the enzyme activity is observed to be diminishing until the effect of the enzyme stops
This is so because, as the pH of the environment changes, the shape of the active site on the substrate to which the enzyme binds to have an effect changes and the enzyme is no longer able to effectively interact with the substrate
The enzymes in the stomach work best in the acidic environment of the stomach and have an optimal pH of 2, while the enzymes of the small intestine have an optimal pH of 7.5
when an organism reproduces through asexual reproduction, how many parent organisms contribute DNA to the offspring?
Answer:
Asexual reproduction produces offspring from just one parent. These offspring are genetically identical to that one parent.
Explanation:
Since sun can filter to the bottom of a pond because it is shallower than a lake, what would you find at the bottom of a pond that you won't find at the bottom of a lake? A. Rocks B. Fish C. Plants D.Mud
Answer:
The correct answer is - C. Plants.
Explanation:
As we know and also given that the pond is usually smaller and shallower than a lake. Due to this reason, ponds have plants growing on the bottom of them from one side to the other as they get enough light as there is only the photic zone in ponds.
In lakes, there are various zones present and the lakes are deep and big to the ponds and the bottom of the lakes did not get sunlight. Plants require sunlight to grow and lakes are usually too deep to get the sunlight for plants to grow on the bottom.
Through these fossilized artifacts, scientists can make conclusions. Some hominid trends include a flatter face as hominids modernized. Refer to diagram M. According to Hominid trends, which of the three jaws would most likely b that of a modern hominid?
Answer:
The first and second hominids have a more recent common ancestor than the first and third hominids.
Explanation:
The similarity in DNA can definitely reveal us about common ancestry but it does not guarantee that the two species must be mating and reproducing. The best example to support this statement is that humans and chimpanzees share a common ancestor and both have so much similarity in their DNA. The DNA of humans and chimpanzees is around 99% similar but still humans and chimpanzees cannot mate to produce off springs. Several attempts have been made in past to obtain fertile off springs by mating humans and chimpanzees but so far their mating has not produced any fertile off spring.
lDK What this would be in but...
I have vertigo what are some phobias you have?
Answer:
Well, I have many...
Explanation:
acrophobia, astraphobia, autophobia, hemophobia (don't judge on that one T^T), cryophobia, Achluophobia, Algophobia, and... Aphenphosmphobia
Have a good day ^^
describe everything made or modified by humans.
Question: How does carbon move between the atmosphere, hydrosphere, biosphere, and geosphere?
1. Explore: Use the Gizmo to create a path for carbon that begins and ends in the atmosphere. Fill in the
steps in the path below. Then, label each location with the system it represents. Finally, summarize very
briefly how the carbon atom got to that location.
Answer:
Yes.
Explanation:
Yes, everything made or modified by humans with the help of knowledge and education. Without knowledge it is impossible to made new things or modify it. Carbon move from atmosphere to the biosphere by the process of photosynthesis done by plants in order to produce their own food so for that reason the plants take carbondioxide from the atmosphere and change into food whereas in the breathing of organisms this carbon moves again to the atmosphere. Carbon also moves from atmosphere to hydrosphere by dissolved in ocean water and lakes and the volcanic eruption and acid rain causes exchange of carbon between atmosphere and geosphere.
Which of these best explains why mosquito populations show an exponential increase followed by a die off on a seasonal basis with a regular pattern?
Answer:
B) Mosquitoes are limited by temperature, with reproduction levels high in the spring and summer and low in the fall and winter.
Explanation:
Mosquitoes are limited by temperature, with reproduction levels high in the spring and summer and low in the fall and winter.
Answer:
B. Mosquitoes are limited by temperature, with reproduction levels high in the spring and summer and low in the fall and winter.
-Explanation:
Since mosquitoes reproduce when the temperatures are warm, their populations undergo a predictable increase in the warmer months. The first frost will kill many of the larvae and decrease the reproduction of these short-lived individuals.
Why is the population of different deciduous tree species limited during winter time?
Answer:
Because trees don't produce food during the winter, they don't have the energy that it takes to maintain their leaves. ... This chemical triggers the tree to shed its leaves and to halt all growth to save energy.
Explanation:
Why don’t rivers run straight?
Answer:
Rivers don't run straight because water flows in the least path of resistance
Explanation:
It is small disturbances in topography that set off reactions that alter the path of a river Any kind of weakening of the sediment on one side of a river due to animal activity it could also be because of soil erosion, or human activity can draw the motion of the water towards that side.
What is the omnivore(s)
Answer:
omnivores are animals that eat plants and animals
Explanation:
Answer:
Kit fox
Explanation:
Omnivores means the predator eats both plants and animals.
Please help!! Giving 15 pointsto best answer!!. What is the purpose of cell division?
A. Growth of new cells
B. Replacement of older, worn out cells
C. Used for reproduction
D. All of the above
Answer:
D
Explanation:
I'm sorry for that other answers I hate when people do that good luck! :)
What three organelles work together to prevent a plant cell from bursting
when it has too much water
The contractile vacuole and the cell wall work together to prevent a plant cell from bursting.
What is turgor pressure?
The pressure exerted by the presence of excess water on the insides of the plant cell is called the turgor pressure. It is maintained with the help of two organelles. These are the cell wall and the contractile vacuole.
The cell wall is the outermost covering of the plant cells. It provides structure and rigidity to the plant cell. When a plant cell is kept in a hypotonic solution, it swells by taking up water by osmosis. The cell wall is an enclosed structure which prevents it from bursting. This condition of the plant cell is called turgidity.
Also, the contractile vacuoles of the plant cell are able to pump out excess water from the water when it has become extremely turgid.
Therefore, the cell wall and contractile vacuoles work together to prevent the plant cell from bursting.
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Describe the borders of Israel after the 1948 War?
Answer:
Israel borders Egypt, Jordan, Lebanon, Syria, and the Palestinian territories of West Bank and the Gaza Strip; it shares maritime borders with Cyprus.
Explanation:
yayy boom
During which stage of interphase does the cell grow to nearly its full size? (3 points)
a
First gap
b
Second gap
c
Prophase
d
Synthesis
Answer:
A. First gap
Explanation:
Which is the BIGGER (less specific) group? *
A. Phylum
B. Kingdom
C. Species
Answer:
C
Explanation:
These groups, from largest to smallest are Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.
How many chromosomes foes the nucleus of sperm cell contain?
Answer:
23 chromosomes
Explanation:
All normal cells have 46 chromosomes but sperm have half that number or, 23. If and when the sperm joins ups with the female's, egg (ovum) which also has 23 chromosomes, together they add up to 46 chromosomes.
Most water enters the atmosphere through surface runoff.5. Water vapor warms as it rises. True or False
help help help help helppppp
Answer:
true
Explanation:
this is because as a gas, it needs to cool down, and cool air and humid air is lower than warmer air.
The statements "Most water enters the atmosphere through surface runoff" and "Water vapor warms as it rises" are false.
Evaporation occurs when water is converted to vapor, the amount of evaporation is controlled by the energy available at the surface and the ease with which water vapor can diffuse into the atmosphere.
From the Earth's surface, water is transferred to the atmosphere through evaporation, from surfaces of free water, snow or ice, the ground or vegetation.
Most of water comes from through evaporation of oceans, while the remaining 20% comes from water from continental regions and the transpiration of vegetation.
Condensation occurs in the atmosphere when hot air rises, cools, and its ability to store water vapor decreases.
The hot air, as it rises, cools down for two reasons:.
The air gives up heat to the surrounding masses that are at a lower temperature.As it rises, it supports less and less pressure and expands, this expansion causes its temperature to drop: it cools.In this air mass and on dust particles, the condensation of water vapor begins and the "water droplets" of the cloud are formed.
Therefore, we can conclude that the statements "Most water enters the atmosphere through surface runoff" and "Water vapor warms as it rises" are false.
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Why is life dynamic? (This is the question for my science thesis and I'm stuck) the chapter was on: fossils, age of rocks/fossils, evolution, classification of organisms, 6 kingdoms of organisms, and dichotomous keys....
Answer:
life is dynamic because without life we can not do anything .we will be like non living things.by the life we are able to move here and there .
Based on the cladogram shown in the
image, which group has a common
trait that all the other groups share?
Answer: I put Mammals, The victim was not stubbed.
Explanation: im not really sure about but the final answer for the presentation/assignment is "Professor Astro used a cougar attack in the kitchen"
Help me please!!!!! :((
Answer:
the answer seems to be A
Deonte’s family sees a solar panel display and considers using solar power for their home. Deonte knows that solar energy is a natural energy resource.
How do the two main kinds of natural resources compare?
A. Renewable resources cannot be replaced, while nonrenewable resources
can be replaced.
B. Renewable resources are unlimited, while nonrenewable resources are
limited.
C. Both renewable and nonrenewable resources are sustainable.
D. Renewable resources are man-made, while nonrenewable resources are
naturally occurring.
Answer:
C
Explanation:
can someone help me asap it’s effects of mutations!!!!
Answer:
Because you can also get minor things like double joints, crooked bones, crowding teeth,ect
read the articles, "Groundwater Use and Overuse" and "Hudson River"
1. In the simulation, what happened to the stream as the water table dropped? What will happen to the groundwater if a pollutant is added to the stream? ~
2. Predict long-term changes to the surface landscape of the area if too much water is drawn from the ground and the water table drops further. ~
Guys answer please Guys I need help in biology in DNAnalyse