Answer:
The gene is the basic physical and functional unit of heredity. It consists of a specific sequence of nucleotides at a given position on a given chromosome that codes for a specific protein (or, in some cases, an RNA molecule).
It's supposed to be for number 5.
Answer:
Pangaea
Explanation:
When Laurentia and Gondawana, two minor supercontinents, collided, they created the Pangaea supercontinent.
The human genome has been estimated to have 20,000 - 25,000 human protein - coding genes.
Before it was thought that the number of genes in the human genome was about 100,000, but with better and more advanced gene finding technology, this number has been revised down to the current estimate, and could continue to drop further.
The human genome has 23 chromosome pairs with a total of about 3 billion DNA base pairs. There are 22 autosomal chromosomes plus the sex determining X and Y chromosomes, to make 23 pairs.
Answer:
returning basic nutrients back to the ecosystem so that they can be used by other organisms
Answer:
<u>Endocrine system, minutes to days</u>
<u>nervous system, less than one second</u>
Explanation:
Nervous system takes information through senses, processes the information and triggers reactions.
Nervous system has less reaction time because it uses <u>electrical signalling </u>(neural impulses) while Endocrine system uses<u> chemical signalling </u>(hormones).
The endocrine system responds to stimulus by secreting hormones in the blood (circulatory system) that travels to the target organ, and hence take more reaction time.