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
Novay_Z [31]
3 years ago
15

Which of the following factors has delayed the development of laboratory- based genetic systems in Archaea?a.Archaea do NOT host

viruses or plasmids.b.Many archaea grow in extreme or unusual conditions that make the use of agar and traditional mutant screening techniques problematic.c.There are no documented systems of conjugation in Archaea.d.Homologous recombination does NOT occur in Archaea.
Biology
1 answer:
e-lub [12.9K]3 years ago
8 0
<h2>b) option is correct </h2>

Explanation:

  • Archaea are the closest modern relatives of Earth's first living cells
  • Archaea are famous because of living in extreme environments
  • If it’s super hot (more than 100° Celsius), freezing, acidic, alkaline, salty, deep in the ocean, even bombarded by gamma or UV radiation, there’s probably life there, and that life is probably archaeal species
  • They’re also considered very resourceful
  • Many forms of archaea can utilize totally inorganic forms of matter—hydrogen, carbon dioxide or ammonia for example—to generate organic matter themselves
You might be interested in
What is the function of DNA and where is it found in a eukaryote cell
swat32

Answer:

The function of DNA is it has the instructions on how to recreate itself and how to do basic functions in cells and in life. It is found in the nucleus of a eukaryote

Explanation:

Hope this helps and have a great day!

7 0
3 years ago
In a lever, 120 N load is attached at a distance of 20 cm from the fulcrum. If this effort is used to lift 50 kg weight then, th
ycow [4]

Answer:

The load distance is 4.9 cm

Explanation:

Given;

Effort applied to the lever, E = 120 N

Load overcame by the effort, L = 50 kg = 50 x 9.8 = 490 N

distance of the effort from the fulcrum, e = 20 cm

let the distance of the load from the fulcrum = d

The following simple set-up is used to illustrate this lever;

  -----------------------------Δ-------------------------------

 ↓          20cm                             d                   ↓

120 N                                                                490 N

Lever operates on the principle of moment, so take moment about the pivot (fulcrum);

490(d) = 120(20)

d = (120 x 20) / (490)

d = 4.9 cm

Therefore, the load distance is 4.9 cm

7 0
2 years ago
Design an experiment from the following hypothesis....
iogann1982 [59]
Get twenty people, from various genders and ages, to be your testees. Create a random test that has both analytical and logical problems, and get the 'testees' (I have no idea if this is a word or not) to do the test before and after spending time outdoors.

An independent variable is how much time they spend outside, and the dependent is how well they function afterwards. (I think).

The constant is what stays the same, so most likely the tests in this case (if taking my example)

I don't really know what you mean by control, though...

This is what I would've done if it was my homework assignment, I'd suggest looking over my answers to see if they're accurate or not. Hope I helped, and good luck.
6 0
3 years ago
How to draw a human cell and lable it and not look cartoonish​
castortr0y [4]

Explanation:

This looks. Perfect in my opnion

4 0
3 years ago
Which two scientists are credited for the invention of the first microscope? Check all that apply. Hans Janssen Zacharias Jansse
Rashid [163]

Answer: Zacharias Janssen is credited with inventing the microscope.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • HELP whoever gets right will be marked brainliest
    9·1 answer
  • An organism's reproductive cells, such as sperm or egg cells, are called
    15·1 answer
  • A secondary immune response occurs when an antigen is encountered on a second occasion, due to exposure to a pathogen that previ
    6·1 answer
  • What would happen if a nucleotide was added at the fourth location in the chain
    12·1 answer
  • What 2 things are taken into the light reactions?
    11·1 answer
  • In the table below, fill in the missing cause and effect of two examples of competition in a community.
    8·1 answer
  • Causes and Solutions for Water pollution(Grade-7) ​
    9·1 answer
  • A mouse population lives in an area with tan colored soil The number of mice with tan coats and the number of mice with dark gra
    7·1 answer
  • What needs to be present for petroleum to form? (select all that apply) *
    14·1 answer
  • (ASAP) Plants, bison, elk, and wolves are all members of an ecosystem. The bison and elk are both primary consumers in this ecos
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!