An enormous rift in one of Antarctica’s largest ice shelves grew
dramatically over the past month, and a chunk nearly the size of
Delaware could break away as soon as later this winter, British
scientists reported this week.
If
this happens, it could accelerate a further breakup of the ice shelf,
essentially removing a massive cork of ice that keeps some of
Antarctica’s glaciers from flowing into the ocean.
<h3><em><u>Prokaryotes</u></em> play several roles in the nitrogen cycle.
<em><u>Nitrogen-fixing</u></em> bacteria in the soil and within the root nodules of some plants convert nitrogen gas in the atmosphere to <em><u>ammonia</u></em>. <em><u>
Nitrifying bacteria</u></em> convert ammonia to nitrites or nitrates. ... Denitrifying bacteria converts nitrates back to <em><u>nitrogen gas</u>.</em></h3>
Answer:
1. Grow
2. Carries out routine functions
3. Replicates DNA
4. Prepares for mitosis
Explanation:
Hope this helps!
Answer:
Sarcomere
Explanation:
The muscle fiber / myofibrils consist of 2 types of filaments - actin and myosin. The myosin filaments are thick filament whereas the actin filaments are the thin filament.
In addition to this, the muscles have A-band and I-bands. These bands give the muscles alternate light and dark colour band structure. In the A-band, myosin filaments are present, whereas in the I - band the actin filaments are found.
In I-band 2 Z-lines are located. The area between the Z-lines is called sarcomere. In this sarcomere region both actin and myosin filaments present.
When muscles get contracted the length of the sarcomere shorten. The actin and myosin filaments overlap in this area. A cross-bridge form between them, with the help of filamentous protein titin.
Answer:
proteins
Explanation:
im not sure tho, hope it helps