Ask question

Ask question

All categories

bagirrra123 [75]

3 years ago

7

How DNA stored for short-term usage? A.ethanol, at 4 degrees * C B. in buffer, at 4 degrees * C C. in buffer, at -20°C D. E. eth

anol, at -20°C in buffer, at -80C.

1 answer:

saul85 [17]3 years ago

6 0

Answer:

c

Explanation:

You might be interested in

When we doing strawberry extraction,why do we have to remove the air as much as possible before we seal the bag?

AlladinOne [14]

Answer:

Explanation:

Oxygen is needed to support life and some metabolic processes in microorganisms especially aerobic organism.

The presence of oxygen in the container gives them the opportunity to carry out there metabolic activities thereby enhancing there growth and multiplication.

Hence, to limit the growth of aerobic bacteria or fungi, and also to prevent the evaporation of volatile components that is available in the content oxygen is withdrawn this help extend the shelf life of the produce to be stored.

8 0

3 years ago

Classical conditioning is

leonid [27]

Answer:

Classical conditioning (also known as Pavlovian or respondent conditioning) is learning through association and was discovered by Pavlov, a Russian physiologist. In simple terms, two stimuli are linked together to produce a new learned response in a person or animal.

The most famous example of classical conditioning was Pavlov's experiment with dogs, who salivated in response to a bell tone. Pavlov showed that when a bell was sounded each time the dog was fed, the dog learned to associate the sound with the presentation of the food.

John Watson proposed that the process of classical conditioning (based on Pavlov’s observations) was able to explain all aspects of human psychology.

Everything from speech to emotional responses was simply patterns of stimulus and response. Watson denied completely the existence of the mind or consciousness. Watson believed that all individual differences in behavior were due to different experiences of learning. He famously said:

Explanation:

8 0

3 years ago

How are lettuce epidermal cells different to onion cells?

AlexFokin [52]

They both have an egg cell wall, a vacuole, and chloroplast, smooth and rough ER, and much more.
Onion skin is treated to be a tissue because it is thin and - brittle.
The skin cells of the onion get a well which gives- the outer portion its rigid shape.

5 0

3 years ago

Use the scenario below to answer the following question

Nutka1998 [239]

Answer:

Nicko: So guys, i'm doing some crazy things with my test today, so the energy wasn't destroyed

Teacher: Why?

Friends: Yeah why loser

Nicko: Because we add a galon of gasoline to the vehicle and observe the vehicle as our friend drive it in a circle around us

Friends: Shut up lose-

Teacher: Guys shut up, Nicko.. can you explain more detail?

Nicko: After doing calculations we realize the vehicle did not travel nearly as far as our thought it would when it used the gallon of gasoline.

Teacher: What's your opinion about that Nicko?

Nicko: I claims that the energy could not have been destroyed, but cannot determine what happened to all of the energy.

Bob: It's my turn

Teacher: Nicko, you can go home now.

Nicko: Thank you teacher!

Teacher: *smile

Bob: Bye Nick!

Nicko: Bye Bob! Good Luck!

Bob: You too!

Unfortunately Nicko going to home with those all pain because of bully

Bully: Yo Nicko

Nicko: ...

Bully: where's your money?

Nicko: I don't have money

Bully: *Punch Nicko

Nicko: *Ughh

Bully: *founds money

Nicko: Nooo, Don't :'(

Bully: Lies, this is your money, bye loser.

Nicko: Ughh my body

Then his mom called his teacher and leave from that school

-IS OVER-

4 0

3 years ago

Read 2 more answers

How can osteocytes remain alive within bone? Select one: Osteocytes have membrane extensions that protrude from bone and allow t

Alisiya [41]

Answer:

Haversian canals are bone structures that contain blood vessels that provide materials for the osteocytes

Explanation:

Through this Harvesian canals, blood vessels that contain the necessary nutrients for their growth and development are brought which keeps them alive

7 0

3 years ago

Read 2 more answers