Scientists interpret the fossil of Ichthyostega through Comparative Embryology which states that:it has been observed that a very young human embryo look very similar with young embryos of other vertebrates in their structure and appearance.
Example: the young human ambryo look very similar with young embryos of birds, frogs,fish and reptiles.This show that,at certain stage of their development all these embryos had fish like features with gill slits and a vascular system,also they posses a simple heart with a single blood circulation.
The answer is A:<span> Metamorphic rocks</span><span> may display two different grain sizes.</span> :)
phenylindanes I'm pretty sure.
After meiosis you are left with 23
Answer:
1) By 11:30pm
2) Shortly before midnight (few minutes to 12:00am)
Explanation:
Since the strain of bacteria takes 1 minute to divide (double its population), and by midnight (12:00am) the entire bottle becomes full, then:
I) Subtract Initial division time from Final division time i.e 12:00 - 11:00 = 1 hour
II) Split 1 hour into two (60minutes makes 1 hour)
I hour/2 = 30 minutes
Definitely, the bottle will be half filled by 11:30pm
2) Once half filled, the rapidly dividing cells reach for the top of the bottle as midnight approaches. By 11:50pm upwards, bottle space must have been running out
