My answer is Nitrogen Fixation.
What do u mean <span>3) In regards to sunspot activity, we are presently...</span>
Answer:
D
Explanation:
Absolute age is defined as the numeric age of fossils.
To identify the absolute age of a fossil, the amount of certain radioactive elements in the rock are measured. When fossils are formed in the rocks, a small amounts of radioactive elements is included in it. The process to identify age of fossil using radioactive elements is known radiometric dating. So, radioactive isotope and its decay product gives absolute age of fossils.
Hence, the correct answer is "D".
Most autotrophs make their "food" through photosynthesis using the energy of the sun. Heterotrophs cannot make their own food, so they must eat or absorb it. Chemosynthesis is used to produce food using the chemical energy stored in inorganic molecules
Answer:
9.378*10^8
Explanation:
The number of phages in each cycle ![= 175](https://tex.z-dn.net/?f=%3D%20175)
The number of host infected in each cycle ![= 175](https://tex.z-dn.net/?f=%3D%20175)
The number of phages released by each hosts in each turn ![= 175](https://tex.z-dn.net/?f=%3D%20175)
There are total
cycle .
So the total number of phages that exist in a single plaque if 3 more lytic cycles occur
![= 175*175*175*175\\= 175^4\\= 9.378*10^8](https://tex.z-dn.net/?f=%3D%20175%2A175%2A175%2A175%5C%5C%3D%20175%5E4%5C%5C%3D%209.378%2A10%5E8)