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olganol [36]
3 years ago
6

Which statement is factual

Biology
2 answers:
Elan Coil [88]3 years ago
7 0
A I believe should be correct
tiny-mole [99]3 years ago
4 0
Its A. Have a nice day :)
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Scientific evidence suggests that the entire human population descended from just several thousand African migrants about 50,000
zhannawk [14.2K]

Answer: Fossils and primitive drawings in several digs around the world continents.

Explanation: I would expect to find fossils and primitive drawings of these several thousand African migrants on different areas around the world. I would like to find primitive bones, specially skulls and teeths and stones with drawings and old writings representing the life of these small population in Africa who made the entire human population.

5 0
3 years ago
Describe how a faulty protein alters the movement of chloride ions across the cell membrane. How does this change in the cell me
Paladinen [302]
<h2>Problem of protein alters the movement of Ions </h2>

Explanation:

  • Proteins are tiny machines that do explicit occupations inside a cell. The directions for building every protein are encoded in DNA. Proteins are gathered from building squares called amino acids.  
  • The CFTR protein is comprised of 1,480 amino acids. When the CFTR protein chain is made, it is collapsed into a particular 3-D shape. The CFTR protein is formed like a cylinder that experiences the film encompassing the cell, similar to a straw experience the plastic top on a cup.
  • In individuals with CF, changes in the CFTR quality can cause the accompanying issues with the CFTR protein:  
  • It doesn't function admirably  
  • It isn't delivered in adequate amounts  
  • It isn't delivered in any way  
  • At the point when any of these issues happen, the chloride particles are caught inside the cell, and water is never again pulled in to the space outside the cell. When there is less water outside the cells, the bodily fluid in the aviation routes gets got dried out and thickens, making it smooth the cilia. The cilia can't clear appropriately when thick, clingy bodily fluid overloads them.

6 0
3 years ago
Using the 10 percent rule, explain why there is typically smaller populations of quaternary consumers compared to primary consum
grandymaker [24]

Answer:

As we know 10% law is transfer of energy from higher trophic level to lower trophic level. So as the energy are transfer from one organism to another there is a loss of energy as that energy are utilised by the oragnism and only 10% of the total energy is transferred to the second consumer.

Explanation:

Quetinary consumer are at the higher position in the food chain so they do not get enough energy from prey they have to feed on several organism for the enegy. And also they are at the top of the food chain so they are not eaten by other animal, their life span are also more than primary consumer.

In other hand primary consumer get enough energy but they are prey for other higher tropic level.

Primary and secondary consumer are maintend in such a way by the nature thats make a ecological balance of the habitant.

6 0
3 years ago
Plz help!! <br> Will be marked BRAINLIEST if right
Kisachek [45]
- Increased due to being able to eat larger seeds

- False

- True

Hope this helps!
6 0
2 years ago
Read 2 more answers
What are the building blocks of DNA And RNA
Paul [167]
The basic building block of DNA and RNA are Nucleotides.
3 0
3 years ago
Read 2 more answers
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