Which cells lack of nucleus ?
A. Muscle cell
B. Euglena
C. Fungal cell
D. Bacterial cell

Answers

Answer 1

Answer:

D. Bacterial cell

Explanation:


Related Questions

How do the process of DNA replication and the laws of inheritance help cells and individuals pass on their
traits?

Answers

DNA copying is otherwise known as DNA replication which is the process of producing 2 identical copies of DNA from one original DNA molecule during cell division. DNA copying is important because it generates variation during sexual reproduction which leads to evolution. Also, DNA copying helps in transfer of information or characters from the parents to the offsprings.

Mendel studied traits with only one mode of inheritance in pea plants. The inheritance of the traits he studied all followed the relatively simple pattern of dominant and recessive alleles for a single characteristic. There are several important modes of inheritance, discovered after Mendel’s work, that do not follow the dominant and recessive, single-gene model.

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If both maize and teosinte are grown in the wild, which species is more likely to proliferate? Why?

Answers

Answer:

he maize is more likely to proliferate because of the human effect.

Explanation:

If both maize and teosinte are grown in the wild, teosinte is more likely to proliferate. This is because teosinte has certain adaptations that make it better suited to the wild environment.

What are maize and teosinte?

Maize and teosinte are both members of the grass family, but they differ in several important ways. Maize, also known as corn, is a domesticated crop that has been selectively bred over thousands of years to produce larger, more desirable ears for human consumption. Maize has a much larger ear size than teosinte, and its kernels are also larger and more closely packed together.

Hence, if both maize and teosinte are grown in the wild, teosinte is more likely to proliferate. This is because teosinte has certain adaptations that make it better suited to the wild environment.

Learn more about maize and teosinte here.

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deficiency symptoms of molybdenum in photosynthesis​

Answers

Answer:

Molybdenum deficiency symptoms in most plants are associated with a build-up of nitrate in the affected plant part. This is a result of poor nitrate reductase activity. Symptoms include: pale leaves with interveinal and marginal chlorosis (yellowing) and necrosis (scald);

HELP!!!! FAST!!!! 20 POINTS!!!! You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal
mass (3,000 kg each) were involved in a rear-end accident at a stop sign. Here is what you know:
• Truck 1 started from rest at the top of a 22-meter hill and coasted toward the intersection.
.
Truck 2 was on a flat stretch of road at the bottom of the hill directly in front of Truck 1.
At the bottom of the hill, Truck 1 was going 20 m/s; Truck 2 was going 35 m/s.
.
There were no skid marks left by Truck 2. The collision occurred at the stop sign where Truck 2 had
stopped
• After the collision, both trucks moved together in the same direction at 10 m/s before slowly rolling
to a stop.
You must now push Truck 2, using 1,000 N of force, 8 meters off to the side of the road so no one
else gets hurt.
1. How much work was done to bring truck 2 to a stop? 2. If tuck 2 came to a stop In 15 seconds, how much power (in watts) did it take to stop truck 2 at the sign by applying force to the brakes? 3. What is the final combined momentum of the trucks right after the accident? 4. Assuming that there are no other no conservation forces involved, what impulse was given to each truck during the collision? A. Truck 1: B. Truck 2:

Answers

Answer:

1) Kinetic energy of the truck 1 is 600,000 joules.

Kinetic energy of the truck 2 is 1,837,500 joules.

2 a)Potential energy of truck 1 is 646,800 Joules.

b) Energy lose by the truck 1 just got converted into heat and sound energy during the collision.

Step-by-step explanation:

Mass of the truck 1 and truck 2,m = 3000 kg

Velocity of the truck 1,  = = 20 m./s

Velocity of the truck 2, = 35 m./s

1. Kinetic energy of the truck 1:

Kinetic energy of the truck 2:

2.a) Energy loose by the truck 1:

Initial height of the truck on the hill = 22 m

At that height potential energy will be maximum:

Potential energy of truck 1 at that height =

b) Energy lost by the truck 1 just got converted into heat and sound energy during the collision.

Which of the following is an example of artificial selection?

Answers

Answer: last option

Explanation:

artificial selection is when humans basically pick a desirable trait in a species and take steps to enhance or perpetuate that specific trait so that it's more common

the best option to describe this is the last one, because humans have bred domestic dogs to be less aggressive and more playful or friendly

the scientific method uses observation and what other process to answer a question

Answers

My Answer

→ The correct answer that would answer the given question above would be EXPERIMENTATION. The scientific method uses observation to gather information, and to answer the questions based on the information gathered, this would involve experimentation. This is the testing of the information so that it would given a clear evidence on the answer.

I hope it's helps ╮(^▽^)╭

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which is a nonmendelian trait

Answers

Answer:

Polygenic traits are considered non-Mendelian because their alleles are located on more than one gene which allows for more alleles and phenotypes.

Explanation:

Examples of polygenic traits are hair color and height. Other traits, such as blood type, show codominance, where there is no dominant or recessive allele.

Bakit mahalagang isabuhay ang pangangalaga sa kalikasan at ano ang mga kakayahang mayroon ka upang maisabuhay ito?​

Answers

Explanation:

The primary motivation for conservation and is to conserve wildlife and maintain biodiversity. Safeguarding wildlife and environment and conserving it for future generations ensures that the species we care about do not become extinct. The preservation of such ecosystems aids in the protection of the overall ecosystem.

Neutral theory proposes that
A) molecular clocks are more reliable when the surrounding pH is close to 7.0.
B) most mutations of highly conserved DNA sequences should have no functional effect.
C) DNA is less susceptible to mutation when it codes for amino acid sequences whose side groups (or R groups) have a neutral pH.
D) DNA is less susceptible to mutation when it codes for amino acid sequences whose side groups (or R groups) have a neutral electrical charge.
E) a significant proportion of mutations are not acted upon by natural selection.

Answers

Answer:

The correct answer is E) a significant proportion of mutations are not acted upon by natural selection.

Explanation:

The neutral theory, proposed by Motoo Kimura in 1968, proposes that part of the molecular variability produced by mutations that exists in populations is natural variability, that is, a large part of the genetic variation observed in populations is due to random fluctuation of genetic variants that are neutral, on which natural selection hardly acts, so they are not an evolutionary force since they do not contribute predominantly to natural selection and proposes genetic drift as an evolutionary mechanism.

im not sure what the answer is please helpppp

Answers

The answer is B because the humoral immune response is mediated by antibody

what is one way the gas giants differ from the terrestrial planets

Answers

Question

what is one way the gas giants differ from the terrestrial planets?

ANSWER

Planets that are largely comprised of rock, such as rocky or terrestrial planets, are not like gas giants. Unlike rocky planets, gas giants lack a clearly defined surface there is no obvious line separating the atmosphere from the surface. The atmospheres of the gas giants are primarily hydrogen and helium.

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Does a virus have an independent lifecycle?

Answers

The virus life cycle could be divided into six steps: attachment, penetration, uncoating, gene expression and replication, assembly, and release.

How do the resources available to people influence how they
grow food?

Answers

Answer:

grow

Explanation:grow

help please I'm stuck
#life sciences​

Answers

hope this helps

I do think that they close to not allow too much of either water or air from entering.

the hollow tube allows water to flow easily.

https://www.bbc.co.uk/bitesize/guides/z28g7p3/revision/1

The cells that make xylem have an ability to adapt according to the environment. They open up, lose their ends to make a hollow vessel, and they get strength by lignin, it also supports the plant.

What is xylem vessel?

Xylem vessel is a vessel type structure present in plants, that hold water for the plant. They are small vessels, and they loose and tight according to the requirement of water of the plant.

Its main function is to transport water and nutrition. It also supports the plant and give strength to tissues and stems.

Thus, the cells that make up xylem have the ability to adapt to their surroundings. They open up, shed their ends to form a hollow vessel, and lignin provides strength and support to the plant.

Learn more about xylem vessel

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3. The absorptive effectiveness of the small intestine is enhanced by increasing the
surface area by
A villi.
C. digestive juices
B. enzymes.
D. elasticity of intestine,​

Answers

Answer:

A villi.

Explanation:

Small intestines have finger-like extensions that basically increase the surface area for nutrients to attach and get transported inside the bloodstream or cells.

Answer:

ashlaylawrence can you fart on my face

What could a human living now and a horse living thousands of years ago
have in common?
A. They need the same amount of energy to survive.
ООО
B. They have the exact same DNA
C. They are made of some of the same matter.
D. They both get their energy directly from the sun

Answers

Answer:

they both get their energy directly from the sun

how does the pH of milk change when it is fermented to make yoghurt​

Answers

Answer:

it gets lower

Explanation:

when milk begins to ferment it gets sour becoming more acidic and the pH gets lower.

In a non-mutated DNA strand, what base pairs with guanine?​

Answers

Answer:

Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Explanation:

Answer:

cytosine pairs with guanine.

6.If a planet is considered habitable, what would that mean?

We could form new habits there.

It would NOT be able to support life

It would have conditions necessary to support life

Only humans could live there

Answers

Answer:

If a planet is considered habitable it means that the planet has all the conditions necessary to support life ,these conditions can be the presence of oxygen

Identifica las variables. Estas, deben guardar una relación de CAUSA-EFECTO. Escribe las variables Variable independiente (causa) Capacidad pulmonar Variable dependiente (efecto) Condición física Variable interviniente (puede provocar efectos en la dependiente; por eso es necesario mantenerla controlada para que nuestros resultados solo se deban a la variable independiente)

Answers

Answer:

in english please

Explanation:

Will give brainiest for the best detailed answer. Thanks a lot :)

Answers

WHAT HAPPENS TO OUR BODIES WHEN WE EXERCISE?

What is happening to her circulatory system?

When you exercise, or play football in this case, you are working your muscles and certain places in the body. When this happens, your muscles respire (burn the FOOD to produce ENERGY) more faster than they would normally, so the demand for OXYGEN and GLUCOSE is increased.

As the muscles are performing cellular RESPIRATION quicker than the norm, they need oxygen and glucose to reach them faster (glucose and oxygen are the components for cellular respiration), and also they need to get rid of their CO2 (products of cellular respiration are CARBON DIOXIDE and WATER) so the HEART is now pumping blood around the body at a faster rate in order to provide these cells with what they need. To summarize, the circulatory system has to work harder and faster during exercise to provide the cells at work with glucose and oxygen and to get rid of the waste carbon dioxide.

What is happening to her breathing system?

{Relates to explanation given} The requirement for oxygen is increased so now the respiratory system (in particular the LUNGS) have to work harder and faster to take in more oxygen and to exhale more CO2, thus you begin to breathe faster. To summarize, oxygen is inhaled quicker and carbon dioxide is exhaled quicker, therefore the rate of DIFFUSION is increased.

Diagram:

Draw picture of a girl playing football and then in the nest picture of her lungs and heart, you can also include arteries and the veins. Show how the lung and the heart work more harder during the exercise or when playing any sports

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The number of mosquitoes at the beginning of the summer was 4,000. There were 500 born and 550 died. What is the growth rate of the mosquitos population? Looking at the birth and deaths does your growth rate makes sense. Explain why or why not.


Answer the following with the growth rate formula: r=(b-d)/N


Please help quick 50 points

Answers

Answer:

-50

Explanation:

500-550

How is biodiversity related to the biosphere?

Answers

Biodiversity is the different life forms and animals which exist on Earth. The biosphere is where all those animals live.

Which must be true for natural selection to happen?

A.) There must be genetic variation in the population.
B.) There can be no competition for resources
C.) All organisms must reproduce the same amount.
D.) The population must be below carrying capacity.

Answers

Answer:

Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.

Explanation:

ayan p o t a k a

haha

Which option is true about human population growth?
Select one:
It peaked in the 1960s. It's still growing but at reduced amounts.
It grew at a steady pace until the 1960s. After that, it sped up.
It peaked in the 1960s. It is now falling.
It grew at a steady pace until the 1960s. After that, it started dropping.

Answers

your answer. have a good evening or night

Question 7 of 25
Which structure is used by the organism to see the outside world?

Answers

Answer:

install

Explanation:

Answer:

Eye

Explanation:

We use the eye to look at things

classifique os eventos abaixo em APRENDIZADO ou INDTINTO.
a) joão de barro fábrica a própria casa.
b) uma ave aprende a abrir a própria gaiola.
c) uma tartaruga retorna à praia que nasceu para por deus ovos.
d) ler um livro.
e) uma criança chora ao nascer

Answers

Answer:

sorry I don't know this language

Molecules C, D, and E will combine to form part of

A) A polypeptide
B) A polysaccharide
C) DNA
D) RNA

Answers

the answer is A. a polypeptide

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function.
Unicellular organisms include bacteria, protists, and yeast.

a. Why do you think unicellular organisms perform asexual reproduction? (give two reasons)
b. What type of asexual reproduction do bacteria most commonly use?

Answers

Answer:

A)

1: The offspring of the cell will contain the exact genes of the parent by reproducing asexually

2: They can reproduce rapidly by reproducing asexually.

B) Binary fission. One cell simply splits into two identical cells.

Explanation:

Hope that helps :D

5. Microwave

Situation: John saw his mother place a cold bread inside a microwave oven. After 3 minutes, his mom removed the bread from the oven and gave it to John John observed that the bread is warm after it was placed in the microwave oven. John wondered what caused the cold bread to warm up after it was placed in the microwave oven.

Observation/s:
Inference:​

Answers

The bread warmed up



The microwave made the bread warm up
Because of the light and the Inclosed area
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Helpppp and explain :) list the integers satisfy the inequality -1 less than 2x - 5 less or equal to 5 A company has the pay scales below , with the percent of employees receiving that pay listed. Find the best value to represent an average salary at this company. ( round to the nearest dollar ) Job Salary Percent of Employees Entry 23,264 60% 47,480 38% 117,027 2% Which statement provides an example of evidence?Walking just 15 minutes per day provides unbelievable health benefits.I have several friends who walk 15 minutes a day.If people are not capable of walking 15 minutes a day, then something is wrong with them.In one study, people who walked 15 minutes each day lost an average of two pounds per month. the range of the following relation R {(3, -5), (1,2),(-1,-4),(-12)} Simplify completely.......... What view of the universe did the Catholic Church always view and preach to all of its followers? suggest ways in which TQM can reduce the cost of quality PLZ HELP!!! QUESTIONS ARE BELOW!!! :D PLZ COMPLETELY ANSWER THE QUESTIONS WITH A GOOD ANSWER :) will give branliest TO ANY ACTUAL ANSWERSWhich equation does the graph of the systems of equations solve?two linear functions intersecting at 3, negative 2 A+B) Describe what is happening in the picture using the present passive voice. (The light is used by the people)C+D) Describe what happened in the picture using past passive voice. (The plane was flown by the pilot)F+G) Describe what will happen in the picture using future passive voice. (The ball will be hit by the man) Find the missing side How have the perspective of those writing history shaped the history that they produced? Which country had the second largest sphere of influence in China? UNIQUE NUMBER: 653234 This assignment is based on Unit three, Unit Four and Unit Five of the Study Guide (TUT501). One of the aims of the unit is to assist you with how words are pronounced in the English Language. The alphabet used for pronunciation is different from that used for writing. Read the 2 units of the Study Guide, Chapter 12 of Carter and Goddard (2016), and Section A1. B1 and C1 of Mullany and Stockwell (2010) for a detailed discussion of the alphabet before you answer the following questions. Question 1 a) Study the words below which have been phonetically transcribed. Provide two words (a pair of words) that can be represented by each phonetic transcription. i. /so:/ ii. /breik/ iii. /san/ iv. l'avl V. Id b) Explain the type of vowel sound in each pair in you have provided in a) above. [Total: 10 marks] Question 2 timular attention to the underlined words. Which Please answer question 4 AAA HELP PLEASE !! SUMMER MATH SCHOOL IS WAY TOO HARD ISTG What do application in productivity suites have in common |x+2|+4=11A) x=5,-9 Before she got her driver's license, seeing police cars and their flashing red lights did not bother Olive. But then she started driving and has been pulled over several times for speeding. Each time she was pulled over, first she saw the flashing red lights of the police car. Then she would be questioned by the police and given a ticket, which made her feel very tense and upset. Now whenever she sees a police car with its flashing lights on, she feels a little bit nervous, even if it is pulling over someone else. In this example, what is the CONDITIONED STIMULUS