× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
New Topic  
123123456 123123456
wrote...
Posts: 619
Rep: 1 0
6 years ago
The two tenets of natural selection are (select all that apply):
 
  A. sexual reproduction in a population.
  B. variation in a population.
  C. competition in a population.
  D. increasing number of members in a population.



The three main groups of known organisms include (select all that apply):
 
  A. Bacteria.
  B. Archaea.
  C. Eukaryotes.
  D. Fungi.
  E. Prokaryotes.



Scientists currently theorize that:
 
  A. it is possible to synthesize a simple cell similar to LUCA.
  B. cells from the Archaea group are most similar to LUCA.
  C. cells from the Bacteria group can be mutated so they revert to LUCA.
  D. evolution created LUCA from the Archaea group.



LUCA, the last universal common ancestor, is:
 
  A. a prehistoric protozoan cell.
  B. an embryonic cell (in fetus).
  C. the simplest bacterial cell.
  D. a cell from which all organisms descended.



When a cell acquires a new function, it usually has acquired:
 
  A. additional nutrients.
  B. additional energy.
  C. additional volume.
  D. a new enzyme.
Read 39 times
1 Reply
Replies
Answer verified by a subject expert
b3kglennsb3kglenns
wrote...
Posts: 267
Rep: 6 0
6 years ago
Sign in or Sign up in seconds to unlock everything for free
1

Related Topics

123123456 Author
wrote...

6 years ago
Helped a lot
wrote...

Yesterday
Thanks
wrote...

2 hours ago
Thanks for your help!!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1357 People Browsing
Related Images
  
 271
  
 326
  
 238
Your Opinion
Which industry do you think artificial intelligence (AI) will impact the most?
Votes: 352

Previous poll results: What's your favorite coffee beverage?