Answer:
One reason cells age is because every time they divide, they lose a little bit of DNA from the ends of their chromosomes. This eventually leads to a loss of important DNA, and they die. The solution to this problem is the telomere.
Explanation:
Different types of cells have different lifespans because it depends on the differences in the cellular metabolic rate of the body.
What is a cell?A cell may be defined as the basic structural and functional unit of life in living organisms. It controls and coordinates all the processes which are required for the proper development and maintenance of the body.
One reason behind the unequal life span of the cell is that cells undergo division multiple times in their life, where they lose a little bit of DNA from the ends of their chromosomes.
Ultimately this leads to complete loss of DNA and other factors and eventually, death occurs.
It may be estimated that neutrophil cells might last for only two days, while the cells in the middle of your eye lenses will last for your entire life.
Therefore, it is well described above.
To learn more about the Lifespan of cells, refer to the link:
https://brainly.com/question/19733528
#SPJ2
Glycolysis is the first step in cellular respiration. Which option best summarizes the process?
A. aerobic; 6-carbon glucose forms four 3-carbon pyruvates; forms a net total of 3 ATP
B. anaerobic; 6-carbon glucose forms two 3-carbon pyruvates; forms a net total of 2 ATP
C. aerobic; 6-carbon glucose forms three 2-carbon pyruvates; forms a net total of 2 ATP
D. anaerobic; 6-carbon glucose forms two 3-carbon pyruvates; forms a net total of 4 ATP
Glycolysis is anaerobic and it involves 6-carbon glucose forming two 3-carbon pyruvate and a net production of 2 ATP.
WHAT IS GLYCOLYSIS?
Glycolysis is the first step of cellular respiration in all living organisms. It involves the breaking down of glucose molecule to form pyruvate molecules and 2 ATP molecules. Glycolysis is an anaerobic process, hence, it does not require oxygen to occur. This is why every living organism can undergo glycolysis.In summary of the process of glycolysis, it is an anaerobic process involving the formation of 3-carbon pyruvate from 6-carbon glucose and a net production of 2 ATP molecules.
Learn more at: https://brainly.com/question/14076989
Which ONE of the following tunica forms the innermost layer of the eye?
O vascular tunic
O fibrous tunic
O neural tunic
Please help ASAP please it’s urgent
Answer:
I believe it's "chewed up food". I hope this helps.
Answer:
3rd
Explanation:
Which genes are turned on or off In a nerve cell?
When both alleles are equally strong and both visible, it is called ___________.
Answer:
Codominance
Explanation:
You're welcome!
codominance.
it happens when two heterozygous alleles are strong enough in the phenotype a being.
10 Points! Please help! What would a sample adaptation for a plant and animal be for a persistent drought, river changing course, and air pollution?
Answer:
ok i said for the first box: they need little water and for animals: they are reptiles or like a lot of sun. for the next 2 im stuck!!!
Explanation:
Adaptation is the process of adjustment to new conditions in order to survive and thrive.
What is adaptation?Adaptation is the process of adjustment to new conditions in order to survive and thrive. Here are some possible adaptations that plants and animals could develop in response to persistent drought, river changing course, and air pollution:
Persistent drought:
A plant could develop a deep taproot system that can reach water sources deeper underground.An animal could develop the ability to conserve water, such as through the production of highly concentrated urine or feces.River changing course:
A plant could develop the ability to disperse seeds over longer distances, allowing it to establish itself in new areas as the river changes course.An animal could develop the ability to swim or navigate through new waterways created by the changing river course.Air pollution:
A plant could develop leaves that are better adapted to filtering out pollutants, such as thicker and hairier leaves or specialized pores that can trap and remove pollutants.An animal could develop stronger lungs or respiratory systems that can filter out pollutants, or the ability to move to areas with cleaner air.These are just a few examples of the types of adaptations that plants and animals could develop in response to these challenges. In reality, the specific adaptations that evolve will depend on a variety of factors, including the specific species, the severity and duration of the challenge, and the available resources and genetic variability.
Learn more about adaptation, here:
https://brainly.com/question/27667761
#SPJ3
what structure is used by ribosomes as the instructions for making proteins ?
board
7
2 point
A study was conducted on the population size of primary consumers observed in the Great
Plains of the United States. The graph below shows changes in their population numbers over
a 7 year period
ndar
300-
OK
3
250-
200
sory
150
100-
dio
50-
slp
year
ОООО
Which statements most likely explains the changes in carrying capacity over this 7 year period?
A new source of prey was introduced between years 3 and 4
The primary consumer populations were depleted between years 0 and 2
A new population of primary consumers emigrated between years 0 and 2
The introduction of a new species of primary consumer occurred between years 3 and 4
9
10
Answer:
A new source of prey was introduced between years 3 and 4
Explanation:
The correct answer would be that a new source of prey was introduced between years 3 and 4.
The carrying capacity of an environment is defined as the maximum number of individuals of a species the environment can support based on the resources it has.
The population of the primary consumers grew between year 0 and 2 before stabilizing between year 2 and 4. There was a sharp decrease in the population between year 4 and 5 and this can best be explained to be due to the effects of a newly introduced prey in the environment between the years 3 and 4.
The energy needed for the changes in the water cycle to take place comes from _____.
Answer:
the SUNNNNN
Explanation:
Which is a cofactor?
A. NAD
B. H2O
C. ATP
D. CO2
Answer:
Atp
Explanation:
What is the best explanation for species diversifying to fill each new niche? A. The plants chose the niche that they "liked" best. B. Ln each niche, the fittest plants were able to leave more offspring than other plants. C. Successive generations of plants adapted to each new niche. D. Only some plants could get nutrients from the soils.
Answer:
C. Successive generations of plants adapted to each new niche.
Explanation:
The process by which species with diverse ecological and morphological variations specialized for various niches arise from a common ancestor is known as adaptive radiation.
Due to variety in habitat and diet, species diversify in order to fill the various niches within the same environment. For example, in the Finches observed by Darwin in the Galapagos islands, adaptive radiation is seen in how their beaks have changed in size and structure so that they now became adapted to different diets. Some species eat mostly animals such as insects, whereas others became adapted to feeding on seeds or plants.
In the case of the plants, adaptive radiation would also play a role in how the species diversified to fill each new niche.
Answer: Succesive generations of plants adapted to each new linche
Explanation:
what is cellular respiration.
Answer:
Explanation: Durante la respiración celular, una molécula de glucosa se degrada poco a poco en dióxido de carbono y agua. Al mismo tiempo, se produce directamente un poco de ATP en las reacciones que transforman a la glucosa. No obstante, más tarde se produce mucho más ATP en un proceso llamado fosforilación oxidativa.
Which enzyme is used to break down bacteria, yeast, and other microorganisms?
a. cellulases
b. oxidoreductase
c. proteases
Answer:
a
Explanation:
Choose the best answer.
1) Using a compound microscope, a person can view the specimen on stage magnified up to ____ times.
A. 1,000
B. 50
C. 100
D. 10
E. 10,000
2) Choose the best answer.
What is the magnification range for an electron microscope?
A. 1,000 times
B. 2,000 times
C. 200 times
D. 100 times
E. 100,000 times
Answer:
1)10,000 times
2)100,000 times
Pick one biotic and abiotic factor and describe how each factor would limit a
population
Type of facter Example factor
How it would limit a population
Abiotic
Biotic
Answer: Abiotic - sun
Biotic- Plants
Explanation:
Abiotic means non living so the sun is non living. The sun gives us warmth and the ability to survive
Biotic means alive or living- plants are living and give off oxygen and take in carbon to help us live
Hope this helps :)
Answer: Abiotic - sun
Biotic- Plants
Explanation:
Abiotic means non living so the sun is non living. The sun gives us warmth and the ability to survive
Biotic means alive or living- plants are living and give off oxygen and take in carbon to help us live
Hope this helps :)
What is the scientific name for the wildflower plant?
Answer:
There is no scientific name.
Explanation:
Wildflowers are a group of flowers that are common in the wild. It is not a specific species, so it does not have a scientific name. Did you mean to insert an image to show a certain species of wildflower?
All are parts of an ATP molecule except for?
Answer:
chlorophyll
Explanation:
What are the three parts of an ATP molecule?
adenine, ribose, and three phosphate groups
Okay so I need the steps of photosynthesis in the right order, I'm taking a test on Mgraw Hill and it is a huge emergency. Screenshot added for clarity. I ordered it from what I remember, But I'm super unsure.
Where can the following organelle be found: Mitochondria. Also if it a multiple choice.
a: Prokaryotic cells
b: Animal cells
C: Plant cells
Answer:
all of them
Explanation:
Mitochondria are found in the cells of nearly every eukaryotic organism, including plants and animals. Cells that require a lot of energy, such as muscle cells, can contain hundreds or thousands of mitochondria.
BUT EACH CELL HAS A DEFINING TRAIT ABOUT THEM
-PROKARYOTIC-no nucleus
-PLANTS- cell wall. large central vacuole
-ANIMALS-multicellular might have more than one mitochondria
mitosis is just one small part of the cell cycle desirbe what occurs if cels were in mitosis more than they were in interphase
Answer:
They would grow and duplicate too rapidly.
Explanation:
According to the cell theory, which statement is correct?
Answer:
According to the cell theory all organisms (unicellular or multicellular) are formed of cells. It also states that all cells arise from pre-existing cells by cell division and do not originate spontaneously. Bacteria and other organisms therefore cannot arise spontaneously.
Explanation:
hope this is correct
i feel like its b or a
As per the cell theory, the correct statement is that cell arises from pre-existing cells. The correct option is D.
What is cell theory?Cell theory is a biological theory first proposed in the mid-nineteenth century that states that living organisms are made up of cells, that cells are the basic systemic unit of all life forms, and that all cells originate from pre-existing cells.
The cell theory is significant because it explains the concept of cell and includes the following postulates:
The cell is the basic component of life. All cells develop from pre-existing ones. Cells are the building blocks of all living organisms on Earth.According to the unified cell theory, all living things are made up of one or more cells; the cell is the basic unit of life.
Thus, the correct option is D.
For more details regarding cell theory, visit:
https://brainly.com/question/1468725
#SPJ2
Your question seems incomplete, the missing options are:
A) Viruses are true cells.
B) Cells are basically unlike in structure.
C) Mitochondria are found only in plant cells.
D) Cells come from preexisting cells.
1. The pressure in the deepest trench on earth is equivalent to ____________________ placed on top of a person.
a. 50 barbells
b. 50 elephants
c. 50 jumbo jets
d. 50 semi-trucks
Answer:
d 50 semi-trucks
Explanation:
barbells are to light elephants are to hevy along with jumbo jets so it would most likely be semi-truck
18. Dr. Milosz electrically stimulates the lateral hypothalamus of a well-fed laboratory rat. This procedure is likely to
A) cause the rat to begin eating.
B) decrease the rat's basal metabolic rate.
C) facilitate conversion of the rat's blood glucose to fat.
D) permanently lower the rat's set point.
E) increase the incentives for food but decrease motivation to eat.
What are disadvantages of sexual reproduction?
What is the effect of an enzyme on the energy of a chemical reaction
Answer:
Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Explanation:
Write a short note on the activities that cause Air pollution.?
Explanation:
fumes from vehicles is the most common cause of air pollution
Answer:
The burning of fossil fuel
wildfires
transportation
burning of garbage
pollutants emitted from factories
carbon monoxide from factories
Agricultural Activities
Construction and demolition
the burning of wood
spray products
Explanation:
a bird is flying 10 miles per hours east is it speed velocity or acceleration?
a car is travelling at 50 mph, then slowe down to 20 mps. speed, velocity, or acceleration?
thanks!
(extra)
A duck is swimming at 2 feet per second. speed, velocity or acceraleration?
Explanation:
Speed is the distance traveled per unit of time.
Velocity is the displacement divide by time. It is speed reported with a specific direction. Velocity is a vector quantity.
Acceleration is the rate of change of velocity with time.
A bird is flying 10 miles per hours east is it speed velocity or acceleration?
Velocity
a car is travelling at 50 mph, then slowed down to 20 mps. speed, velocity, or acceleration?
Acceleration
A duck is swimming at 2 feet per second.
Speed
when it's time to divide a cell organizes its DNA into ____
Answer:
During interphase
The cell grows and makes a copy of its DNA ( DNA is copied and there's a complete extra set of all the genetic material).
The cell moves to the second stage. It ;
Organizes and condenses the genetic material Prepares to divide.Explanation:
why do I exist? (IMPORTANT ANSWER NOW)
I exist because I am lucky that I exist. tricky question have a nice day:)
What types of erosion help create V-shaped valleys?