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artcher [175]
3 years ago
12

According to this evolutionary tree, approximately how many years ago did humans and orangutans share a common ancestor?

Biology
1 answer:
timama [110]3 years ago
5 0
The answer is 12 million years ago
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Do pollen grains have the same number of chromosomes as a regular plant cell?
finlep [7]

The pollen grain is actually the male gametophyte generation of seed plants. Inside the anther, pollen mother cells divide by meiosis to form pollen grains whose nuclei contain half the number of chromosomes characteristic of the parent plant. 

(hope that helped answer the question)

8 0
3 years ago
1. Based on the examples in the table, how do opinions differ from facts?
baherus [9]

1. Opinions are not always right; facts are.

2. Theories are sometimes right, but sometimes they are either wrong or a little off; facts are on point and with the exact answer.

3.  A theory is a scientific explanation of a fact.

4. They all have a good amount of information; also they say approximately to let you know it's not the exact answer.

5. A law is more like a prediction of what will happen if the situation is given and it's shown by the mathematical equation; Theory describes what happens. (Happened).

6. This would try to go against my understanding but it won't happen because I know that theories don't become laws or vice-versa; theories remain theories and law remain laws.

7 0
3 years ago
Water is prevented from entering the active site of glycogen phosphorylase.
FrozenT [24]

Answer:

a. to prevent the unnecessary breakdown of glycogen

b. to prevent the formation of glucose

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the main reason is to prevent hydrolysis. because the entry of water could lead to the formation of glucose rather than glucose 1-phosphate.

3 0
3 years ago
To determine whether the mutations in the seven strains leading to the wingless phenotype are in the same gene, your lab sets up
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Two genes.  

There are two change gatherings:  

Changes 1,2,4, and 7 didn't supplement one another, and thus are on a similar quality.  

Changes 3, 5 and 6 didn't supplement one another, however supplemented with transformations 1, 2, 4, and 7. Thus, these three transformations are available together on an alternate quality.

6 0
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During protein synthesis the cell uses a
vlabodo [156]
During protein synthesis the cell uses information from messenger RNA
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