What is nucleus meaning

Answers

Answer 1

Answer:

A nucleus is a membrane-bound organelle that contains the cell's chromosomes.


Related Questions

True Or False?
Organic materials are the remains of once-living organisms

Answers

Explanation:

trueeeeeeeeeeeeeeeeeeeeee

5. Juan’s cell phone company charges $35 a month for the phone service plus $0.50 for each text message. How many text messages does Juan send in a month if his bill was $52?

Answers

Answer:

34

Explanation:

Total Cost = Fixed Charge + 0.50 * number of text messages

Total Cost = 52 dollars.

text Messages = x

Fixed charge = 35 dollars.

Equation

Total Cost = Fixed Charge + number of text message * 0.50

Solution

52 = 35 + 0.50 * x                  Subtract 35 from both sides

52 - 35 = 35-35 + 0.50x        Combine

17 = 0.50x                               Divide by 0.50

17/0,50 = 0.50*x/0.50

x = 34 text messages

what three elements are found in chlorofluorocarbons

Answers

Answer:

Carbon, chlorine, and fluorine.

Explanation:

Which description best explains Watson and Crick's DNA model?

A. DNA is a single–stranded molecule that has nitrogenous bases toward its exterior.
B. DNA is a double helix made of two strands linked together with hydrogen bonds.
C. DNA is a double helix that contains nitrogenous bases toward its exterior.

Answers

Answer:

A . ..............,.................

Answer:

DNA is your saliva

Explanation:

IN YOUR CLASS

Bears are known to hibernate during the winter and give birth to their cubs 1 point

in the spring. This is made possible because bears mate in the spring and

after a brief moment of embryo development, the embryo stops

development for several months. If the mother has enough stored energy

to last her and her babies through the winter, the embryo will implant and

continue to develop into a baby. What organic molecule would allow the

mother to have energy to allow the embryo to grow through the winter?

Water molecules because it is used during osmosis

Monomers because they are smaller units that makes up polymers

Proteins because it gives the body support

Lipids because lipids stores energy

Answers

Answer:

ufuddsiodpfofiffopOI

Explanation:

Which group of organisms obtains energy by breaking down waste and dead organisms?

consumers
decomposers
predators
producers

Answers

decomposers is the right naswer aoldkdmdkd

right answer: decomposers

QUESTION: What are the building blocks of all organisms?
ANSWER:

Answers

Answer:

Cells

Explanation:

Answer:

Cells

Explanation:

Organisms are created by different types of tissues. These are composed of cells. Animals are made of animal cells which are round, and plants are made of plant cells which are rectangular and have cell walls.

Colony collapse disorder is a natural phenomenon in which the majority of worker honeybees—bees that collect food for the hive—die at the same time. If several hives in a region experience this phenomenon, how could it affect the life cycle of flowering plants in the region?

Answers

The plants might die out because there is no one to pollinate them

Answer:

A decrease in honeybees can lead to fewer bees pollinating flowers, which could decrease the chances of flowering plants producing offspring.

Explanation:

Edmentum

An idea that has been tested Widely,  is supported by extensive evidence, and is accepted by most scientist in a particular field of study, is called a(n)?
A. Hypothesis
B. Scientific law
C. Scientific variable
D. Theory

Answers

Answer:

D. Theory

Explanation:

Neurons communicate with other neurons in 3 phases: What are the 3 phases?

Answers

The central nervous system (CNS) goes through a three-step process when it functions: sensory input, neural processing, and motor output. The sensory input stage is when the neurons (or excitable nerve cells) of the sensory organs are excited electrically.

you’re welcome ;)

Michelle was curious about her mother's blood type. Michelle knew that her own blood type was o,
her father's blood type was A, and her two sisters and one brother both also had type A blood. How
could Michelle have type o when everyone else around her seems to have type A blood? Michelle is
really frustrated. Please help her out by making a possible Punnett square showing how this could
happen.

Answers

Blood type is determined by the I gene. IAIA and IAi determines A blood type. IBIB and IBi determines B blood type. ii determines 0 blood type. Michelle's mother must at least carry one recessive allele i.

--------------------------------

The blood type is determined by a gene, which is triallelic.

IA dominant over i. The person presents A type of antigens.

IB dominant over i. The person presents B type of antigens.

IA and IB are codominant. The person presents both types of antigens, A and B.

i is the recessive allele. The person does not present any antigen.

⇒  H0m0zyg0us dominant individuals IAIA, or heter0zyg0us Individuals IAi, will express the A blood type.

⇒  H0m0zyg0us dominant individuals IBIB, or heter0zyg0us Individuals IBi, will express the B blood type.

⇒ Individuals with h0m0zyg0us recessive genotype, ii will express the 0 blood type.

⇒ Individuals carrying IA and IB alleles will express the AB blood type.

To solve the problem, we will use this information.

We know that

Michelle is blood type 0

Father is blood type A

Brother and sister are blood type A

Mother??

⇒ If Michelle is blood type 0, then her genotype is ii. She must have received one recessive allele from her father and one from her mother.

⇒ This suggests that Michelle's father, who is blood type A, is heter0zyg0us IAi. He must have at least one dominant allele IA that determines his phenotype, and one i allele.

⇒ Michelle's brother and sisters are also type A. They might be either h0m0zyg0us dominant IAIA or heter0zyg0us IAi.

⇒ Michelle's mother should have at least one recessive allele i. She could be either IAi or IBi, or ii. There are three possible option for her genotype.

Let us make the Punnet squares to understand it better. We know the genotype of the father, but there are three options for the mother.

Option 1

Cross)   father x mother

Parentals)  IAi     x     IAi

Gametes)  IA    i      IA     i

Punnett square)      IA       i

                       IA    IAIA    IAi

                        i     IAi       ii

F1) 25% of the progeny is expected to be h0m0zyg0us dominant IAIA

     50% of the progeny is expected to be heter0zygus IAi

     25% of the progeny is expected to be h0m0zyg0us recessive ii

75% of the progeny is expected to be blood type A ⇒ IAIA and IAi ⇒ Sisters and brother

25% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle

Option 2

Cross)   father x mother

Parentals)  IAi     x     IBi

Gametes)  IA    i      IB     i

Punnett square)      IA       i

                       IB    IBIA    IBi

                        i     IAi       ii

F1)  25% of the progeny is expected to be IAIB

     25% of the progeny is expected to be heter0zygus IAi

     25% of the progeny is expected to be heter0zygus IBi

     25% of the progeny is expected to be h0m0zyg0us recessive ii

25% of the progeny is expected to be blood type AB ⇒ IAIB

25% of the progeny is expected to be blood type A ⇒ IAi ⇒ Sisters and brother

25% of the progeny is expected to be blood type B ⇒ IBi

25% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle

Option 3

Cross)   father x mother

Parentals)  IAi     x     ii

Gametes)  IA    i      i     i

Punnett square)      IA       i

                        i     IAi        ii

                        i     IAi        ii

F1)  50% of the progeny is expected to be heter0zygus IAi

     25% of the progeny is expected to be h0m0zyg0us recessive ii

50% of the progeny is expected to be blood type A ⇒  IAi ⇒ Sisters and brother

50% of the progeny is expected to be blood tye 0 ⇒ ii ⇒ Michelle

Despite the fact we can not determine for sure the mother's genotype, we know that she carries at least one recessive allele, which is why Michelle's blood type is 0.

------------------------------

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what name is given to the process in which pre-mrna is edited into mrna?

Answers

RNA processing

RNA processing is the term collectively used to describe the sequence of events through which the primary transcript from a gene acquires its mature form.The 3′ end of the messenger RNA (mRNA) is modified by the addition of a long string of adenosines in a process tightly linked to transcription termination.

8
What statement is true about cell walls.
1
Cell walls are present in animal cells
O All cells have cell walls
O Cell walls support, shape, and protection the cell
O In plants, cell walls are made of proteins

Answers

Answer:

Although 3 and 4 are great answers, I honestly think the answer is C. Because you can simply define the cell wall as a semi-rigid thick protective structure that surrounds the cell membrane of some types of cells for protection and defining the shape of the cell. The cell membrane alone cannot provide the required rigidity or strength. All living organisms are composed of cells. Cell walls contain only little amount of protein in the cell wall.

Explanation:

Not all cells have a cell wall; the cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell. Cell walls are found in both prokaryotes and eukaryotes, although not all cells have cell walls. Animal cells does not have a cell wall; Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. Chloroplasts enable plants to perform photosynthesis to make food.

What is the difference between guttation and dew

Answers

Answer:

Dew is atmospheric moisture condensing on colder surfaces, and is pure water. Guttation is moisture secreted from within the plant itself, and contains xylem sap. Guttation allows for secretion through the edges of the plant.

What temperature is indicated on each of the thermometers below?

Answers

Answer:

1. 0 degree 2. 25 degree 3. 20 degree 4. 45 degree 5. 1 degree

呢额度和老婆俄哦呢 就可发热俄莆田市俄 ​

Answers

Answer:

那么问题是什么

我不明白

祝你今天过得愉快...

Look at each picture. Then write in the term that best completes each sentence:
cross-pollination dominant
genetic information
recessive
1. Offspring cells are
identical to parent
cells because they
contain identical ____
2. The pea plant in
this picture is polli-
nating another
plant. This process is
called ______
3. In pea plants, the
allele for purple
flower color is ______
4. Pea plants with
white flowers receive
two __________
over the allele for
white flower color.
alleles for flower
color from parents.

Answers

Answer:

the answer is C. The plant received both alleles from both the parents.

Explanation:

It’s C if you’re doing it on edge

compare and contrast:
bacteria and protists
protists and fungi
bacteria and fungi

Answers

Answer:

Bacteria are single-celled microbes

Explanation:

The primary difference between them is their cellular organization. Bacteria are single-celled microbes and are prokaryotes, which means they're single-celled organisms lacking specialized organelles. ... In contrast, protists are mostly single-celled eukaryotic organisms that are not plants, fungi, or animals.


Is the carbon used in photosynthesis balanced by carbon given
off by cellular respiration?


Answers

Answer: In this way, photosynthesis and cellular respiration are linked in the carbon cycle. Photosynthesis requires atmospheric carbon, while cellular respiration returns carbon to the atmosphere, and vice versa for oxygen.

Explanation:

The products of photosynthesis are glucose and ___

Answers

Answer:

oxygen

Explanation:

The products of photosynthesis are glucose and oxygen.

Answer:

Oxygen

Explanation:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product.

HELPPPPPPPPPPPPPPPP
organelle
DEFINITION:

Answers

Answer:

They are the organs of the cells

Explanation:

the end

Answer:

Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive

Explanation:

a. Copy and complete the word equation for photosynthesis.
Carbon Dioxide +____----->____+______
b. explain how chlorophyll helps this reaction to happen.​

Answers

Answer:

carbon dioxide + water + glucose + oxigen

Explanation:

Chlorophyll is responsible for the green color of plants, which through the process of photosynthesis transforms sunlight into natural chemical energy

Answer:

a. Carbon Dioxide + Water -----> Glucose +Oxygen

Sunlight

b. The light dependent reaction takes place within the thulakoid membrane and requires a steady stream of sunlight, hence the name light dependent reaction. The chlorophyll absorbs energy from the light waves, which is converted into chemical energy in the form of the molecules ATP and NADPH

(giving brainliest and 30 points)
1. Discuss the environmental l issues to creating artificial life

2. Discuss the Social issues to creating artificial life

Answers

Answer:

1.the transition to life, the evolutionary potential of life, and the relation between life and mind and culture.

2.The creation of artificial life would have to consist, we assume, in the creation of an artificial living entity, henceforth an ‘artificial organism’.1 We will take an organism to be artificial just in case either

Explanation:

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what determines whether two proteins will bind to each other?

Answers

They will bind to each other if they have complementary shapes and chemical properties.

Answer:

They will bind to each other if they have complementary shapes and chemical properties.

Explanation:

If something were to complement each other, they would be more attracted to each other like magnets. For example, purines would bind with a complementary pyrimidine versus another purine.

explain how eating a burger is the result of photosynthesis​

Answers

Answer:

The bread, lettuce, tomatoes, and onions in the hamburger all came from plants. The food molecules in those plants were made as a result of the process of photosynthesis, using the energy in the sunlight. The hamburger meat came from a cow, which ate grass and other plants to obtain food.

the system that maintains the human species from generation to generation is the

Answers

The system that maintains the human species from generation to generation is the REPRODUCTIVE system. This system is responsible for producing male and female gametes.

The reproductive system is an organ system by which humans produce male (sperm) and female (ovule) gametic cells.

Male and female gametes fuse during fertilization to produce a diploid zygote that develops into an adult individual.

In women, the reproductive system is composed of the ovaries, uterus, fallopian tubes, cervix, and vagina.

In men, the reproductive system includes the testes, prostate, and penis.

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https://brainly.com/question/8285842?referrer=searchResults

answer asap asap!


bio

Answers

Either B and D I believe I may be wrong..

Which is NOT a function of the skin?
a.Insulation
b.Movement
c.Excretion
d.Vitamin D Production

Answers

Answer:

a.insulation

Explanation:

insulation does not fall under functions of skin

Which of the following groups is difficult to define into species using the Biological Species concept?
A. Vertebrates
B. Asexually reproducing organisms
C. Sexually reproducing organisms
D. Insects

Answers

Asexually reproducing organisms groups are difficult to define into species using the Biological Species Concept.

Why is it difficult to define a species using the concept of a species?

In summary, the main limitation of the concept of organisms is that they are independent of ectopic speciation and are not applicable to (1) Fossil species. (2) Organisms with asexual reproduction or extensive self-fertilization. (3) Sexual organisms with an open mating system (seed that mates freely).

Asexual reproduction is a type of reproduction that occurs without cell or germ cell interaction. In the case of asexual reproduction, the organism does not need a spouse to reproduce. Organisms that undergo asexual reproduction to produce offspring are called asexual species.

Learn more about reproducing here: https://brainly.com/question/16331915

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Crossing over results in ________.


asexual reproduction

the random arrangement of homologous chromosomes throughout the cell during meiosis

the survival of the sperm as they travel to the egg

the exchange of genetic material between homologous chromosomes

please help asap test due in 10 min will bomb if I don't have right wander

Answers

I believe the answer is: D - the exchange of genetic material between homologous chromosomes.

Explanation:

In crossing over, sections of DNA move between homologous chromosomes and allows for independent assortment.

Independent assortment states that genes are inherited independently of one another.

For meiosis to occur, the chromosomes contributed by each of the organism's parents are duplicated to form sister chromatids. During meiosis I, the sister chromatids of one parent match up with the corresponding sister chromatids of the other parent (synapsis), or its homologous non-sister chromosome, along the metaphase plate.

Crossing over then occurs. At a point called a chiasma, homologous chromosomes trade genetic information so that each chromosome is complete but has different information.

This random exchange of information is what allows for unique gametes to form and genetic recombination to occur.
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