Living organisms can be divided into 5 kingdoms,
- Prokaryotae
- Protoctisia
- Fungi
- Plantae
- Animalia
Of the list I have provided, the Animalia kingdom contains cells that lack cell walls!
Well, we have a book to write on this topic but imma explain it briefly plus simply.
- Global warming emphasizes the environment with rising temperatures, water shortages, increased fire threats, droughts, weeds and pest attacks, severe storm damage and salt attacks, to name just a few.(In simple words)
Now, we'd go briefly and discuss some common affects briefly :
- Hotter days - The climate is getting more and more warmer and year 2015 was the hottest year ever record throughout the history. The Earth's temperature had already warmed by 1°C which is really dangerous.
- Rising sea levels - Rising sea levels due to climate change is the biggest problem causing natural calamities. Increased ocean temperatures are melting glaciers and ice caps all over the world. Melted ice increases the volume of water in our oceans. Warmer temperatures also result in the expansion of the water's mass, which causes sea levels to rise, threatening islands and coastal cities.
- More frequent and intense extreme weather - Extreme weather events like bushfires, cyclones, droughts and floods are becoming more common and more aggressive as a result of global warming.
Hope it helps <3
Answer:
Explanation:
The above mentioned key points are mechanisms by which cells used to correct replication error and repair damaged DNA.
Proof Reading: while printing a page, the typesetter set the types and impression is taken, proof reading is done to correct mistakes if any, and the final printing is done. A similar follow up mechanism is done after DNA synthesis. If DNA polymerase detects an incorrect nucleotide pair, it will remove and replace with the correct nucleotide immediately.
Mismatch Repair:even after DNA synthesis, mismatch area(insertion or deletion) can be identified on the newly synthesized DNA.
In the mismatch repair, specific proteins scan the newly synthesized DNA strand. The mismatch area is identified and loop.
The second protein complex remove the mismatch segment. Finally correct segment is synthesized by the help of DNA polymerase, SSBs and ligase.
DNA damage repair mechanism: when DNA get damaged, there's a repair process that fix the damage. This includes Direct reversal, excision repair and Double stranded break repair
I would have to say the second stage of life
Adaptive radiation is <span>a pattern of evolution in which several closely related, yet different, species evolve from one common ancestor in order to adapt to different environmental pressures convergent evolution.
Gradualism is a theory of evolution that states that a species evolves by consistent, small, steps.
Punctuated Equilibrium is a theory of rapid change and then goes through periods of no change.
Divergent evolution is a pattern of evolution in which very different species evolve form one common ancestor due to their adaptation to different pressures from the environment.
Analogous means to be evidently similar in some way or are related.
Coevolution is a pattern where two species evolve in relation to each other.
Convergent evolution occurs when two very different species evolve similar characteristics triggered by the environment they both live in. </span>
