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dem82 [27]
3 years ago
7

Based on the current model of evolutionary history, the first living cells to evolve on earth were

Biology
1 answer:
raketka [301]3 years ago
5 0
Animals or us humans because we were animals we had the first cell i think
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Who was the first to study genetics? Before Gregor Mendel.
lutik1710 [3]
Augustinian friar Gregor<span> Johann </span><span>Mendel.
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You have left your purse in a shop in a mall. Write a formal letter to the manager to inquire if it has been found. You will hav
Mrac [35]

Answer:

The manager

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(area)

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Sir,

Sub-regarding loss of purse

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Why is a keystone species' role in the ecosystem compared to the keystone brick's role in the arch?
mote1985 [20]

A keystone species helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.
4 0
3 years ago
A train travels 210km in 3 hours 45 minutes. what is the average speed in kilometers per hour?
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3 0
3 years ago
Compare the properties of the parent and daughter cells in mitosis and meiosis and explain the reason for any differences.
MariettaO [177]

1. Mitosis takes place within somatic cells (cells that make up the body). Meiosis takes place within gamete cells (sex cells). 


2. One single division of the mother cell results in two daughter cells. Two divisions of the mother cell result in four meiotic products or haploid gametes. 


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7. There is no exchange of DNA (crossing-over) between chromosomes. There is at least one crossing-over or DNA exchange per homologous pair of chromosomes. 


8. The centromeres split during anaphase. The centromeres do separate during anaphase II, but not during anaphase I. 


9. The genotype of the daughter cells is identical to that of the mother cells. Meiotic products differ in their genotype from the mother cell. 


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