Answer:
The correct answer is option C. "Most rocks from that era are deeply buried".
Explanation:
The Precambrian is the earliest era of Earth's history, predating the emergence of life during the Cambrian Period. Even tough it is the earliest era of Earth, the Precambrian era represents 88% of all geological time, which makes evident that life is relatively new in comparison to the Earth's total geological time. Most rocks from Precambrian era are deeply buried, result of diverse phenomena in the tectonic plates along history. This make most rocks inaccessible and prevents the finding of Precambrian fossils.
Answer:
50% of getting A blood type
Explanation:
Using a punnet square you have (sorry cant do a square)
<u> IA IB</u>
<u />
<u>IA</u>
<u />
<u />
<u>i</u>
<u />
Then you you add all the possible combinations from both parents genes
IA IB
IA IA IA IA IB
i IA i IB i
You now have a 50% chance of A type blood because the lowercase (i) wont change the blood type outcome because the IA over shines it.
Answer:
68.74%
Explanation:
To find the Standard Deviation:
First find expected return.
(0.7*100%)+(0.3*-50%) =70-15= 55%
Then the Variance.
[0.7*(1-0.55)^2]+[.3*(-0.5-0.55)^2]
=0.14175+0.33075
=0.4725
=47.25%
The Standard Deviation is the square root of the variance.
=0.6874
=68.74%
(C)rough because it cools so fast that air bubbles get trapped inside of the rock, and they will pop causing it to be rough
Answer:
DNA REPLICATES
Explanation:
During G1 phase, the cell grows in size and synthesizes mRNA and protein that are required for DNA synthesis. Once the required proteins and growth are complete, the cell enters the next phase of the cell cycle, S phase.
