1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
borishaifa [10]
3 years ago
5

A key difference between primary cell cultures and secondary cell lines is that:____.a. primary cell cultures tend to stay alive

and divide longer than secondary cell lines. b. secondary cell lines are generally cancerously transformed and will divide indefintely. c. secondary cell lines grow slower than primary cell cultures.d. the cells in primary cell cultures do not divide.
Biology
1 answer:
ivann1987 [24]3 years ago
7 0

Answer:

<u>d. the cells in primary cell cultures do not divide.</u>

A key difference between primary cell cultures and secondary cell lines is that<u> the cells in primary cell cultures do not divide.</u>

<u>hope</u><u> </u><u>it</u><u> </u><u>helped</u><u> </u><u>you</u><u> </u>

Explanation:

<em>The main difference between primary and secondary cell culture is that the primary cell culture contains the cells directly obtained from host tissue, whereas the secondary cell culture contains sub-cultured cells from primary cell culture.</em>

You might be interested in
Many songbirds breed in North America in the spring and summer and then migrate to Central and South America in the fall. They s
ololo11 [35]

Answer:

C.The two species do not breed in the same area, so they are reproductively isolated by allopatry.

Explanation:

Allopatry means that these two species are geographically separated during the breeding season, so they are reproductively isolated.

Allopatric speciation is a form of speciation (creation of new species) that occurs as a result of geographic isolation. This means that a part of population becomes physically separated from the initial main population. There is no gene flow between these two populations and as a result the two populations  reach a high level  of genetic divergence. They can no longer interbreed which means they become two different species (speciation).

7 0
2 years ago
Two steps of photosynthesis are
11Alexandr11 [23.1K]
A) Light dependent and light independent/Dark reaction
3 0
3 years ago
What determines the inherited traits an organism has?
Fiesta28 [93]
D is the correct answer :)

6 0
3 years ago
The region inside the cell except for the nucleus is called ...? hurry to answer plz
Roman55 [17]
No idea but hopefully this cheers you up!

4 0
2 years ago
Read 2 more answers
2<br>147 What is si system ? write<br>down its two advantages.<br>its any​
Fittoniya [83]

Answer:

SI system consist of standard units of measurement that are defined by International System Of Units.  

Explanation:

SI stands for Standard International. It consist of total 7 units that are accepted internationally,  

 Two advantages of  SI units are:

  1. SI unit is rational system of units, that means one unit denotes one physical quantity.
  2. SI units are internationally accepted which makes researchers and scientist calculations
7 0
3 years ago
Other questions:
  • Select all that apply.
    11·2 answers
  • The hot expanding gases generated by the combustion reaction in the engines are:
    8·2 answers
  • Ethanol <br> is produce during what process
    13·1 answer
  • Does the example ( picture ) describe science or pseudoscience?
    7·1 answer
  • What are the 6 types of fossils
    13·1 answer
  • Will give brainliest! Please give me the correct answer! Thank you! (apex)
    12·1 answer
  • Which membranous organelle is found next to the nucleus and is covered in ribosomes?
    15·2 answers
  • In the Brookhaven beetle, straight antenna(S) are dominant over curly antenna(s). Green wings(G) are dominant over red(g).A beet
    14·1 answer
  • In mead's model, which sequence correctly orders stages of the developing self answerimitation, play, game, generalized otherimi
    12·1 answer
  • Describe the connection between the digestive and circulatory systems (in detail)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!