I have 10 question will give medal and be a fan 1)The main difference between a prokaryotic cell and a eukaryotic cell is A) the ability to grow. B) the ability to reproduce. C) the presence of nucleic acids. D) the presence of a true nucleus. 2) Which type of cell contains DNA enclosed in a nucleus? A) centriole B) eukaryote C) plasmid D) prokaryote 3) Viruses CANNOT A) be crystallized. B) live in bacteria. C) reproduce

QUESTION POSTED AT 18/01/2020 - 04:58 AM

Related questions

Where does the cotton come from that is used to make clothing? plants algae bacteria worms

Answer: Plants

Cotton is a a soft, staple fiber that is obtained from the seeds of cotton plant, which belong to the genus Gossypium. The fiber is spun into yarn or thread that is used to make cloths. It is a highly valuable fiber for textile industry.  

ANSWERED AT 17/02/2020 - 10:01 AM


QUESTION POSTED AT 17/02/2020 - 10:01 AM

Need help with these questions! Will give brainliest answer/thanks/5 star

These are called Landforms.

ANSWERED AT 17/02/2020 - 09:53 AM


QUESTION POSTED AT 17/02/2020 - 09:53 AM

Amylase becomes denatured at a temperature of 80°C. During an experiment to study the effect of varying temperature on enzyme activity, amylase's reactivity with starch was measured at body temperature (37°C), and then again at an increased temperature of 42°C. How would this increase in temperature affect the experiment? A) The reaction will stop. B) The enzyme would become inactive. C) The rate of reaction will increase. D) The rate of reaction will decrease.

C, When you want to dissolve salt or sugar into water, it dissolves easier and faster in hot water than cold water. he increase in temperature affects the experiment in such a way that amylase does not efficiently break down starch than it was in normal body temperature (37°C). This is because the structure of amylase will change, thus it cannot interact well with starch than its original structure at  37°C.

ANSWERED AT 16/02/2020 - 07:06 PM


QUESTION POSTED AT 16/02/2020 - 07:06 PM

I need help with five multiple choice marine science questions. 1)When severe weather damages the plant life in an ecosystem, what effects might this have on other organisms in the same ecosystem? a)- Other organisms could starve or have to leave the area if they depend on the plants as food. b) -Other organisms could change their behavior to take the place of the plants in the ecosystem. c )-Other organisms would not be affected. d )-Other organisms could replace the plant energy with radiant energy from the sun. 2)As the climate changes, the average ocean temperature is rising. Using this information, predict what will most likely happen to El Niño events in the future. a)-El Niño events will intensify because they rely on warmer water sinking to the seafloor. b)-El Niño events will intensify because they will build on the already warm waters at the equator. c)-Some El Niño events will be stronger, but most will be weaker because the ocean currents are unpredictable. d)-El Niño events will become more similar to La Niña events and establish a new weather pattern. 3)Which of the following examples is the most likely way severe weather can negatively affect the biodiversity of a marine ecosystem? a)-A severe thunderstorm brings rain and wind to an intertidal zone. b)-A storm surge from a hurricane floods a coastal area. c)-A tornado causes a waterspout. d)-A blizzard adds snow and ice to an arctic glacier. 4)El Niño events are characterized by warmer than normal ocean temperatures near the equator in the Pacific Ocean. Which weather events are most likely to occur as a result? a)- Increased rainfall across the eastern Pacific Ocean b)-Decreased flooding across the eastern Pacific Ocean c)-Drought along the South American Pacific coastline d)-Colder winter along the South American Pacific coastline 5)According to the Severe Weather Activity worksheet, El Niño events most likely occurred during which of the following years? a)-2006 and 2015 b)-1997, 2006, and 2015 c)-1997 and 2015 d)-1997 and 2006

1. The answer is A. The eradication of plants in an ecosystem would devastate the food web in the habitat. This is because plants are primary producers and significant as conduits of energy into a food web. Plants convert radiant energy from the sun to biomass through photosynthesis. This energy then transferred up the food chain through various form of interaction such as predation.

2. The answer is B. Global warming causes water at the equator to be even warmer above normal temperatures. This fans the upwelling of cold water from below the ocean floor and causes an even greater disparity of temperatures across the Pacific ocean. This subsequently fans the trade winds hence warming the air even more and causing severe storms.

3. The answer is B. The flooding of the coastal area due to hurricanes destroys the biodiversity of the ecosystem by physically destroying the habitat and by drowning organisms such as affecting a whole species population. This upsets the balance of the ecosystem and makes it prone to even further deterioration.

4. The answer is A. When the surface ocean waters at the Pacific ocean warm at the equator, there is an upwelling of cooler ocean waters from the bottom of the ocean., The warm currents along with trade move towards the east and met the South American coastline where they bring in heavy rainfall. Conversely, the northwestern region of the Pacific experiences drought.

5. The answer is C. Elnino and La Nina occurs at a frequency of approximately two(2) to seven (7) years. The phenomenon usually lasts nine (9) to twelve (12) months. El Ninos are more frequent than La Ninas. Their peak effect is usually felt around December and January. The strongest El Nino was the one that occurred in 1997.

ANSWERED AT 16/02/2020 - 07:04 PM


QUESTION POSTED AT 16/02/2020 - 07:04 PM

1. Restriction enzymes are naturally occurring proteins genetically engineered proteins enzymes that cut proteins B then C A then C 2. Plasmids can be used to cut DNA can be used to insert DNA into bacteria can be used to digest proteins A and C All of the above 3. Name the technique used to increase a quantity of DNA. plastid technology genetic engineering PCR RNA Recombinant DNA technology 4. What tool does one use to separate DNA fragments? an electron microscope a cyclotron a mass spectrograph a Polyacrylamide gel a centrifuge (high speed) 5. DNA fragments hav 1. Restriction enzymes are naturally occurring proteins genetically engineered proteins enzymes that cut proteins B then C A then C 2. Plasmids can be used to cut DNA can be used to insert DNA into bacteria can be used to digest proteins A and C All of the above 3. Name the technique used to increase a quantity of DNA. plastid technology genetic engineering PCR RNA Recombinant DNA technology 4. What tool does one use to separate DNA fragments? an electron microscope a cyclotron a mass spectrograph a Polyacrylamide gel a centrifuge (high speed) 5. DNA fragments hav ...?

1. Restriction enzymes are

A then C

2. Plasmids

can be used to insert DNA into bacteria


3. Name the technique used to increase a quantity of DNA.

PCR


4. What tool does one use to separate DNA fragments?

a Polyacrylamide gel

Hope this answers the question. Have a nice day.

ANSWERED AT 16/02/2020 - 06:46 PM


QUESTION POSTED AT 16/02/2020 - 06:46 PM

Suppose that a when a cell phone store charges 16$ for a car charger, it sells 92 units. When it drops the price to 15$ it sells 96 units. Assume that demand is a linear function of price. If each phone charger costs 1$ to make, what price should the store charge to maximize its profit? If x is the number of times the price is reduced by one dollar. Find a function for total profit with respect to x. A negative value for x will mean the price is increased. ...?

If you put the dollar decrease as x, you sell charge
16−x

dollars and sell
92+4x

units for a profit of
(16−x)(92+4x)−(2+4x)

dollars. the last subtraction because your cost is $1 per unit multiply out and
get
P=−4x2−32x+1470

which will have a maximum at the vertex
x=−b/2a

32/(2(−4)) 

= −4

I hope the answer has come to your help. Thank you for posting your questions here in Brainly!


ANSWERED AT 16/02/2020 - 06:39 PM


QUESTION POSTED AT 16/02/2020 - 06:39 PM

A.) List one organism classified in kingdom Animalia and one organism classified in kingdom Fungi b.) Describe two similarities between the two organisms. c.) Describe two differences between the two organisms. ...?

A. Kingdom Animalia: Dogs
    Kingdom Fungi     : Molds
B. Both dogs and molds are eukaryotic- multicellular and do not produce their own food.
C. They have different structures when it comes to physical appearance.The major difference between them is their ability to move - animals are capable of free movement while fungi yes they can but not as much as the animals.

ANSWERED AT 16/02/2020 - 06:34 PM


QUESTION POSTED AT 16/02/2020 - 06:34 PM

Pls help! I need help with the answer to question in pic

(4) D and E are products of digestion

ANSWERED AT 16/02/2020 - 06:30 PM


QUESTION POSTED AT 16/02/2020 - 06:30 PM

3 things that the cell is doing during interphase.

1)grows 2)copies its DNA 3)prepares to divide

ANSWERED AT 16/02/2020 - 06:24 PM


QUESTION POSTED AT 16/02/2020 - 06:24 PM

The _____ root helps stabilize soil from erosion. A) Fibrous B) Taproot

Answer: A. Fibrous

A fibrous root is a root system that is found in the monocotyledonous plants. This root system forms extensive branching of the thin roots below the stem. This root system develop like a mat underground when the tree attains complete maturity, because of a mat like structure and strong holding capacity on the soil this root system helps in preventing the soil erosion.

ANSWERED AT 16/02/2020 - 06:02 PM


QUESTION POSTED AT 16/02/2020 - 06:02 PM

You visit a farm and notice that white chickens lay white eggs and colored chickens lay brown eggs, so you decide that only white chickens lay white eggs. What type of reasoning is this? a) inductive b) deductive

Answer

Inductive

Explanation

Its a logical process in which a number of premises  all believed true or sometimes found  true most of the time and combined to come up with specific conclusions. Its mostly used in applications that do involve  behavior, forecasting and makes broader generalization that is considered probable. For example a speculation that all crows are black and each time a new crow is observed  and found out that its black the assumption is increasingly confirmed. On the other hand if the crow is found not to be black then the assumption's found to be false..

ANSWERED AT 16/02/2020 - 05:29 PM


QUESTION POSTED AT 16/02/2020 - 05:29 PM

Which structure of the respiratory system plays the main role in carry out the system’s primary function? trachea pharynx alveoli nose

Answer:

alveoli

Explanation:

Alveoli are the basic functional units of respiratory system which play actual role of exchange of gases. Alveoli are tiny balloon like air sacs which exist as a single cell not as a group of cells. They are responsible for exchange of gases like oxygen and carbon dioxide in our body. As soon as we inhale with the help of nose, a lot of air full of oxygen first reaches pharynx and then trachea. From trachea it ultimately reaches alveoli. Since alveoli have air full of oxygen so the partial pressure is more at alveolar end while capillaries nearby alveoli have blood which is full of carbon dioxide so the partial pressure of carbon dioxide is more in capillaries. Now, a gradient is set up as a result of which alveoli and blood capillaries exchange oxygen and carbon dioxide passively. Oxygen molecules from alveoli tend to diffuse to capillaries while carbon dioxide molecules from capillaries tend to move towards alveoli. The movement/exchange of gases continues until an equilibrium condition is reached. After which the carbon dioxide is exhaled out of out body with the help of same respiratory tract mentioned above.

ANSWERED AT 16/02/2020 - 05:14 PM


QUESTION POSTED AT 16/02/2020 - 05:14 PM

What would happen if all of the genes in a cell were always active?

It would apoptoses. The genes triggering cell death would be active, therefore it would have to die.

ANSWERED AT 16/02/2020 - 05:05 PM


QUESTION POSTED AT 16/02/2020 - 05:05 PM

The presence of more than two alternative forms of a given gene would be called ________.

It is called diploid

ANSWERED AT 16/02/2020 - 04:26 PM


QUESTION POSTED AT 16/02/2020 - 04:26 PM

What are the differences between hormonal system and nervous system?

Hormonal send chemical by a way of blood stream, while nervous system is electrochemical network which send information quickly

ANSWERED AT 16/02/2020 - 04:06 PM


QUESTION POSTED AT 16/02/2020 - 04:06 PM

A group of hikers find a fallen tree in a forest. The dead tree trunk is covered by mushrooms and other fungus. Later, they find a wild apple tree with many apples lying on the forest floor beneath the tree. The apples are all rotten and decayed by bacteria. Which statement BEST summarizes how these fungus and bacteria organisms are obtaining their food energy? A) The fungus and bacteria are both parasitic organisms that obtain food from other living organisms. B) The fungus and bacteria are both obtaining their energy by manufacturing food from minerals and sunlight. C) Both fungus and bacteria require well-fertilized soil in which to obtain nutrients needed for chemosynthesis. D) The fungus and bacteria organisms are obtaining the energy they need by decomposing organic matter like dead trees and old apples. Eliminate

Answer: D. The fungus and bacteria organisms are obtaining the energy they need by decomposing organic matter like dead trees and old apples.

Fungi is the primary decomposer of biological waste in forest ecosystem. Fungi grows on the branching network of hyphae which provide it more penetration potential towards the litter. Wood decaying fungi has enzymes required for decomposition of lignin, a chemical substance found in wood. Fungi decompose organic matter by releasing enzymes which breaks down the decaying matter, after that they absorb the nutrients in the decaying material. The left residue in the organic matter includes sugars and amino acids are degraded and decomposed by the bacteria.

ANSWERED AT 16/02/2020 - 04:05 PM


QUESTION POSTED AT 16/02/2020 - 04:05 PM

Describe how bacteria do each of these life functions Locomotion, Get & use energy, Reproduction

Some bacteria have structural components called flagella or pili, which help it move around in fluid or stick to other objects, such as other cells. Bacteria either produce their own food or consume other cells for food, and they use it by converting it in their cellular organelles. Bacteria can either reproduce through asexual (budding, binary fissure) or sexual reproduction (plasmid loop transfer)

ANSWERED AT 16/02/2020 - 04:00 PM


QUESTION POSTED AT 16/02/2020 - 04:00 PM

Which of the following takes place in meiosis but not in mitosis?1. cell division 2. crossing over3. metaphase 4. spindle fiber formation-I think is #2 crossing over but it would be nice for someone to check.

4. Spindle fiber formation takes place in meiosis but not in mitosis. I think, mitosis is what is behind children growing into adults and what helps heal cuts.

ANSWERED AT 16/02/2020 - 03:55 PM


QUESTION POSTED AT 16/02/2020 - 03:55 PM

Which two scientists worked together to develop a three-dimensional model of DNA?

James Watson, Francis Crick.

Developed the three dimensional model of the atom although there aids or assistance, Maurice Wilkins, and Rosalind Franklin And most forgotten Elizabeth Sheppard helped them gain the knowledge to make the atom model in the first place Elizabeth shoe gave them the motivation 


ANSWERED AT 16/02/2020 - 03:47 PM


QUESTION POSTED AT 16/02/2020 - 03:47 PM

Which one of these is not an example of intracellular communication A. Molecule in a cell changes function of cell B. Control of cell division C. Molecular movement within a cell D. Reaction to pheromones

Answer:

The answer is Reaction To Pheromones

Explanation:

This is not an example of intracellular communication because Airborne molecules that elicit a reaction in a member of the same species are called pheromones, and the most famous ones are potent aphrodisiacs, like androstenone and androstenol in the saliva of male boars.

ANSWERED AT 16/02/2020 - 03:45 PM


QUESTION POSTED AT 16/02/2020 - 03:45 PM

What are 2 main functions of flagella and cilia?

Hello! Flagella and cilia assist the cell in moving around. It's somewhat comparable to an arm or leg propelling someone forward when swimming- cells may not have limbs but they have flagellas and cilias

ANSWERED AT 16/02/2020 - 03:36 PM


QUESTION POSTED AT 16/02/2020 - 03:36 PM

Explain how the inside of a cell remains separate from its environment

     Well, first, we need to know the structures of a cell to answer this question properly.

      As you may know, a cell contains lots of different structures with different functions, for example, a ribosome, it is an organelle that makes protein for your body. The inside of a cell is separated then by a plasma membrane made out of phospholipids, it protects the inside of a cell by deciding what gets in and what gets out through proteins attached to it and vesicles. The inside of a cell must be always separated from its environment because of the difference in pH levels most of the times, or even to maintain its functions working properly without outside influences.

ANSWERED AT 16/02/2020 - 03:29 PM


QUESTION POSTED AT 16/02/2020 - 03:29 PM

What type of energy the kinetic and potential energy called

It's called Merchanical Energy

ANSWERED AT 16/02/2020 - 03:12 PM


QUESTION POSTED AT 16/02/2020 - 03:12 PM

True or False: If the prefix "iso" means the same, there is no change in the cell (egg).

Answer:

True

Explanation:

We are given that the prefix ''iso'' means the same .

Iso mean  equal , there is no change in the cell .

For example iso-gametes

It means the gametes are same .All gametes are same and are not different with each other.

Isomer : It means that the compound which have same molecular formula but different structural formula .

Therefore, we can say that iso mean same or equal or identical or  like or similar .

Hence, the given statement is true.

ANSWERED AT 16/02/2020 - 07:00 AM


QUESTION POSTED AT 16/02/2020 - 07:00 AM

Which variable stars have pulsation periods between 1.5 hours and 1.2 days? A. Cepheid variables B. RR Lyrae variables C. Protostars D. Quasars

The answer would be B) RR Lyrae Variables.

ANSWERED AT 16/02/2020 - 06:35 AM


QUESTION POSTED AT 16/02/2020 - 06:35 AM

What are the functions of the products of photosynthesis in living things?

Oxygen - It is very important for all living to survive 'cause without it, cellular respiration can't take place....

Glucose - It is the simple food, it provides energy to the whole ecosystem, so that they can survive. 

Without either of them, life is not possible!!!!!

ANSWERED AT 16/02/2020 - 06:26 AM


QUESTION POSTED AT 16/02/2020 - 06:26 AM

What Occurs Along A Plate Boundary? A) Earthquakes B) Hot Spots C) Deep-Sea Ridges D) Rugged Mountain Ranges

The answer is C) Deep-Sea Ridges 

ANSWERED AT 16/02/2020 - 06:01 AM


QUESTION POSTED AT 16/02/2020 - 06:01 AM

Cells stop dividing if ______ with other cells?

Cells stop dividing if life with other cells

ANSWERED AT 16/02/2020 - 02:11 AM


QUESTION POSTED AT 16/02/2020 - 02:11 AM

A population that grows until it reaches its carrying capacity usually has the shape of what

The shape of an 'S'

Hope that helps

ANSWERED AT 16/02/2020 - 02:00 AM


QUESTION POSTED AT 16/02/2020 - 02:00 AM