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natulia [17]
2 years ago
10

What is an allele?

Biology
1 answer:
kaheart [24]2 years ago
3 0
I believe that it is B.

I hope this helps ^-^
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Which organ is found in the excretory system? large intestine small intestine stomach urethra
Maru [420]

Answer:

urethra

Explanation:

6 0
3 years ago
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Recall that Archaea and Bacteria used to be grouped in the same category. How were archaeons first distinguished from other prok
Alekssandra [29.7K]

Answer:

By difference in there ribosomal RNA sequence

Explanation:

Both bacteria and archaea lack membrane-bound nucleus and earlier both are considered in the same categories. Carl Woese was the scientist who discovered that bacteria and archaea are not similar.

Carl Woese and his lab members checked the ribosomal RNA in some archaeans and concluded that the archaeans are more closely related to eukaryotes than bacteria. After the study on archean Carl Woese classified the prokaryotes into two domains i.e., bacteria and archaea.  

Therefore by difference in the ribosomal RNA sequence archaeons first distinguished from other prokaryotes.

3 0
2 years ago
What other features of annelids appear in other phyla?
olga_2 [115]

Answer:

Characteristics of Annelida: Plesiomorphies and Other Features

Symmetry and Size. Annelids are all bilaterally symmetrical animals. ...

Coelom. Nearly all annelids have a fluid-filled cavity between the outer body wall and the gut, and this is referred to as a coelom (Figure 1). ...

Body wall. ...

Parapodia. ...

Nervous system. ...

Sense organs. ...

Circulation and respiratory structures. ...

Segmental organs.

Explanation:

hope this helped!

7 0
2 years ago
I need help with one problem. When limiting factors ________, diversity in populations _________. A. decrease; decreases B. incr
Sphinxa [80]
When limiting factors increase, diversity in populations decreases. In this sense "limiting factors" can be anything from a lack of resources to a lack of food, meaning it's harder for the population to survive. 
5 0
3 years ago
____ 15. which excretory organ eliminates water and some chemical wastes in perspiration?
Nastasia [14]
I think the answer is skin. Skin contains sweat glands which secrete a fluid waste called sweat or perspiration; nonetheless, its primary functions are temperature control and release of pheromone. Its role as a part of the excretory is therefore minimal. Additionally, sweating also maintains the levels of salt in the body.
8 0
3 years ago
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