why is cell division important for unicellular and multicellular organisms

Answers

Answer 1

Multicellular organisms need cell division to grow and to replace dead or damaged cells and unicellular cell division is the only way single-celled organisms can reproduce. It means the same as cells died.


Related Questions

Scientists have inserted a gene that codes for resistance to a biodegradable weed killer into a certain plant. Which of the following is the most likely benefit of the gene?
O The plant is more likely to survive when exposed to the weed killer
O The plant will be able to convert the weed killer into fertilizer.
O The plant will be able to produce chemicals to kill weeds around it.
O The plant is more likely to die when exposed to the weed killer.

QUICK PLEASE​

Answers

Answer:

The plant is more likely to survive when exposed to the weed killer

Explanation:

since it has a gene that is resistant to the weed killer, it wont be affected by it.

resistant means it can defend itself from something

which of the following is not an example of symbiosis? A. red blood cells containing malaria B. vines using a tree for support C. nitrogen-fixing bacteria and roots of legumes D. pigs feeding at a trough

Answers

Answer:

A. red blood cells containing malaria

Explanation:

Also, just as a heads up. I saw the previous person posted a link. Remember not to click any links that lead to domains which are unknown to you. They could hold a virus.

Answer:

A

Explanation:

What are MAD (mitotic arrest deficient) proteins and when are they important in the cell cycle?

Answers

Answer:

The mitotic arrest deficient protein MAD2B (MAD2L2) is a member of a MAD family of proteins and shows 48% similarity to MAD2 (MAD2L1) [1], [2]. Both MAD2 and MAD2B can bind to the anaphase promoting complex or cyclosome (APC/C), which is a downstream target of the mitotic spindle checkpoint.

MAD (mitotic arrest deficient) are proteins related to spindle cell cycle checkpoint and it is important since they prevent the segregation of sister chromatids until all have bound to the spindle.

The cell cycle ensures the duplication of the genome and its distribution in daughter cells by passing through a coordinated and regulated sequence of events.

A series of checkpoints guarantee the orderly progression of the phases of cell division and the correct distribution of the duplicated genetic material in the daughter cells.

The checkpoints during mitosis are:

At the end of stage G1 and before S.

Before anaphase in mitosis.

DNA damage checkpoints in G1, S or G2.

The checkpoint before anaphase in mitosis guarantees the separation of chromosomes, and operates by activating the Mad2 protein that prevents the degradation of segurin, until the conditions are appropriate.

That is, the Mad2 protein prevents the segregation of sister chromatids until they have all bound to the spindle.

Therefore, we can conclude that MAD (mitotic arrest deficient) are proteins related to spindle cell cycle checkpoint and it is important since they prevent the segregation of sister chromatids until all have bound to the spindle.

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In an energy pyramid only about
of energy is transferred from one level to the next
get the most energy, while
consumers get
the least. This is because organisms use the energy during growth, metabolism, and cellular processes, much of the energy is lost in in the form of

Answers

Answer:

Heat

Explanation:

Energy that is not use in an ecosystem is eventually lost as heat. Energy and nutrient are passed around through the food chain, when one organism eat another organism any energy remaining in a dead organism is consumed by decomposes.

What are the two principle forms of ossification that occur in the development of the skeletal system

Answers

Answer:

Ossification is a process in which the mesenchymal cells and cartilages convert to bone during development. it is has two types: Membranous and endochondral ossifications. It occurs in mesenchyme which has formed a membranous sheath (figure 4) .

When more than two species are interacting, and evolutionary change in one causes change in one or more of the others, it is known as:

Answers

Answer:

coevolution, the process of reciprocal evolutionary change that occurs between pairs of species or among groups of species as they interact with one another. The activity of each species that participates in the interaction applies selection pressure on the others.

Explanation:

Hope I could help.

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how many feet of intestines does the average person have

Answers

Research suggest that the combined length of the small and large intestines is at least 15 ft in length. The small intestine can measure about 9-16 ft while the large intestine is roughly 5ft long.

In sexual reproduction, will an offspring show a recessive trait if just one of its parents has recessive alleles for that trait? Explain your answer.

Answers

Answer:

No, they will not

Explanation:

In this question, we assume that the parents have genotypes of rr and RR (I use "r" out of convenience). If we cross both of these parents, it is impossible for any of the offspring to be rr like the one parent. They would all be heterozygous. If the other parent had a single recessive allele, then it would be possible.  

Hope this helps!

The sympathetic nervous system's stimulation response is balanced by the parasympathetic nervous system's ________ response.

Answers

Answer: akinesia

Explanation:because it’s a nervous system

The sympathetic nervous system stimulation response is balanced by the parasympathetic REST and DIGEST response.

The autonomic nervous system (ANS) is divided into the parasympathetic nervous system and the sympathetic nervous system.

The parasympathetic nervous system is responsible for normal body functioning and homeostasis, whereas the sympathetic nervous system deals with the fight, flight, or freeze responses.

The parasympathetic system promotes rest-and-digest activities when the body is at rest.

In conclusion, the sympathetic nervous system stimulation response is balanced by the parasympathetic REST and DIGEST response.

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Water reacts with sodium metal to produce sodium hydroxide and hydrogen
gas, along with heat and light. What are the reactants in this chemical
reaction?

Answers

Reactants: sodium metal, water

Products: sodium hydroxide, hydrogen gas

A body was found at 12:22am on April 19. The temperature of the
body when found was 94 degrees. What was the approximate time of death?

Answers

343883822828827382829

how does acyl coa get across the inner mitochondrial membrane?

Answers

Answer:

Explanation:

Heres where to get your answer

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(LO 1.6) Assume a person just drank a glucose solution and is sitting quietly.
Injecting insulin would cause compared to when there was no insulin
injected.
m

Answers

Answer:

more glucose to move into cells in muscles

Explanation:

Enzymes transferring electrons at the start of the ETS are referred to as ________, whereas enzymes transferring electrons to the terminal electron acceptor are designated as ________.Question 40 options:a) sulfatases; nitrogenasesb) lyases; hydrolasesc) permeases; proton pumpsd) dehydrogenases; oxidasese) oxidases; dehydrogenases

Answers

Answer:

dehydrogenases; oxidases

Explanation:

What is the name of the play that Hamlet presents to King Claudius?

Answers

Answer:

The Mousetrap

Explanation:

In act 3, scene 2 of William Shakespeare's Hamlet, Claudius asks Hamlet for the play's title, to which Hamlet replies, The Mousetrap. He says that the play presents the true story of a murder carried out in Vienna.

which molecule is needed for photosynthesis to occur?

Answers

Answer:

Carbon dioxide and water

Explanation:

plants prepare their food in presence of these molecules to produce sugar and oxygen which we required for survive

If two organisms of different species share more similar DNA sequences with each other than with other species, we can conclude that ________.

Answers

If two organisms of different species share more similar DNA sequences with each other than with other species, we can conclude that these two species are very closely related.

Anatomy and embryology, molecular biology, biogeography, and fossils all provide evidence for large-scale evolution (macroevolution).Different species with comparable architecture may be homologous (shared by ancestry) or analogous (shared due to similar selective pressures).The similarity of life's molecules is evidence that it shared an ancestor. The connections between different species can be discovered by comparing DNA sequences.Biogeography, the study of the geographical distribution of organisms, provides information on the origin and evolution of potential species.The presence of extinct species in the past and evidence of long-term evolutionary changes are both shown by fossils.

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Insect are classified into how many main group ?​

Answers

Answer: 3 Sub classes wingless insects known as apterygota and winged insects known as pterygota

Explanation:

is SARS a common virus?

Answers

Answer: SARS is not a common virus,  it is a viral respiratory illness that was recognized as a global threat. it is spread through close contact. Although it is a very serious illness, it is rare to get. only eight persons were laboratory-confirmed as SARS cases.

Explanation:

Define terrestrial animal.write any five characteristics of terrestrial animal

Answers

Answer:

- living on land or on the ground.

-rather than in water and trees or in the air

-a terrestrial life

-a terrestrial habitat

- and a terrestrial species

what is neuro immune dysfunction syndrome? can it be cured?

Answers

Answer:

it can be partially cured

Explanation:

its like cancer u can cure it to stop spreading kinda but you can still have a high high risk or getting it agaian and theres a process

fundamental similarity due to descent from a common ancestor is called

Answers

Answer:

fundamental similarity due to descent from a common ancestor is called homology.

2. What is a gene? ________________________________________________________
3. What is the difference between gametes and body cells? ____________________________________________________________________________
4. Each person’s DNA is unique except for who?________________________________________________________________________
5. How does each gene code for a protein?__________________________________________________________________________________________________________________________________________________
6. Look at the picture of the nucleus, chromosome, and gene and infer what the relationship is of the three things? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Answers

Answer:

2).a gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein

how environmental factors can affect genetics

Answers

Answer:

Situational Genetics

Explanation:

The envirnment can control and manipulate species' genes through adaptation. An example of this is horse's teeth building resielnce to grind grass. In order to eat comfortably, horse prefer smushing their food. Over time, they have adapted to the environment by strengthening their teeth.

Within the cell, vacuoles can be thought
of as which of the following?

Answers

Answer:

B. warehouses

Explanation:

i just paid attention in class. Is that a good enough explanation?

Which statement is true about water molecules?
a) The hydrogen atoms do not share electrons
b) Water molecules move randomly around each other
c) Water molecules cannot dissolve many substances
d) The oxygen atom has a negative charge

Answers

Answer:

B

Explanation:

i asked my Alexa... it was a good question

most of the surface area of a plasma membrane consists of

Answers

Answer:

50% liquid and 50% protien by wieght

Research endangered marine mammals of ocean and polar ecosystem. Write a 100or more words on the factors that have caused this mammals to become endangered.

Answers

Answer: hunting and capture by humans

Explanation: Principal anthropogenic threats to the survival of marine species include fisheries interactions (entanglement in nets and lines), hunting and capture by humans, ship strikes, pollution and habitat degradation, and climate change.

When protons are actively transported across the cristae membrane in mitochondria to set up a proton gradient between the inter-membrane space and the mitochondrial matrix, this is referred to as___________________

Answers

Answer:

Explanation:

Heres where to get your answer

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Factors
Increase or Decrease
in Carrying Capacity?

Answers

Answer:

Carrying capacity, or the greatest number of people that an environment can support over time without harming or degrading it, is controlled by a few basic factors: food supply, water availability, and space. Carrying capacity, or the greatest number of people that an environment can support over time without harming or degrading it, is controlled by a few basic factors: food supply, water availability, and space.

Explanation:

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