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
yulyashka [42]
3 years ago
14

The placement of prokaryotes into major clades within the domains Archaea and Bacteria has been based on __________.

Biology
1 answer:
Alja [10]3 years ago
6 0

Answer:

Molecular evidence

Explanation:

Earlier archaea were considered as bacteria because they show some similarities with bacteria like binary fission as mode of reproduction, lack of a nucleus, etc.

Later Carl Woese separated bacteria in a different domain and divide prokaryote into two domains called bacteria and archaea. He separated archaea from bacteria on molecules evidence.

He compaired rRNA sequence between bacteria and archaea and observed that they both differ in rRNA sequence which allowed him to make a separate domain for archaea.

You might be interested in
After observing the F2F2 generation, what conclusion did Mendel come to?
Zolol [24]
In his experiment mendel first crossed tall and short peas plant and noticed that the F1 plants were all tall. in the second experiment he crossed the the F1 plants and noticed that short plants reappeared in the rate of 25% in F2 generation. in his third experiment he crossed he crossed F2 plants and noticed that when he crossed some tall plants with the shot plants the F3 generation contained short plant in frequency of 50%. after this observations mendel concluded that there were genes that could be only expressed in homozygous state but not in heterozygous state. these genes were later referred to as recessive alleles wheres the genes that prevented the expression of recessive genes were later referred to as dominant genes.     
6 0
3 years ago
A pediatrician designs baby formula to help babies gain weight. To show his formula works, he compares the weights of babies tha
Lelechka [254]

Answer:

Dependent Variable: Babies that use the formula

Independent Variable: Babies Without the formula

Explanation:

As the formula dose Increases, So does the weight of the babies (figurativly)

This is the Dependent variable because it depends on another factor

The Independent variable doesn't depend on the amount of formula taken because it doesn't use the formula, therefore it doesn't depend on anything, its Independent.

7 0
3 years ago
Read 2 more answers
What will happen to a population of organisms that are in an oxygen rich environment. (Double click the story board to draw on i
Dmitry_Shevchenko [17]

Answer:

it will disolve

Explanation:

6 0
2 years ago
The protostome developmental sequence arose just once in evolutionary history, resulting in two main subgroups—Lophotrochozoa an
Lelechka [254]

Answer:

<h2>c. Division of these two groups occurred after the protostome developmental sequence appeared. </h2>

Explanation:

  • Protosomes are such types of organisms in which the mouth part developed first during embryonic development.
  • Those animals in which anus develop first are known as deuterostomes.
  •  This differentiation takes place during the embryonic development of the organisms.
  • Since lophotrochozoan and Ecdysozoa both are protostomes animals and categorized on the basis of molecular evidence.
  • Thus these two groups were formed after the appearance of the protostomes.

8 0
3 years ago
11. Distinguish between the following:<br> (a) cilia and flagella
amm1812

Answer:

Cilia and flagella are projections from the cell. They are made up of microtubules , as shown in this cartoon and are covered by an extension of the plasma membrane. They are motile and designed either to move the cell itself or to move substances over or around the cell.

Explanation:

6 0
3 years ago
Other questions:
  • Rosalind Franklin contribute to the understanding of DNA by
    9·1 answer
  • The graph shows the change in a fish population over several years. During this same time, artificial fertilizer was used nearby
    10·2 answers
  • ___populations can have the same species name
    9·1 answer
  • Which of the following is true about natural selection?
    15·1 answer
  • Where is the chromatin located?
    8·1 answer
  • who is responsible for the chromosome theory, which says that genes of inheritance are in specific locations on a chromosome
    5·1 answer
  • Why are Cnidarians not considered coelomates?
    11·1 answer
  • Which is the thinnest of Earth's spheres?
    12·2 answers
  • The fact that _____ is electronegative gives a water molecule a partial positive side.
    14·1 answer
  • What is the structure of a codon?.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!