The answer is B. Vascular plants and invertebrates appeared during this time.
T<span>he MAIN way the skin prevents pathogens from entering the body is B. by acting as a barrier.
Our skin is a barrier between blood and tissues inside and everything found outside of our body. The skin protects us from various kinds of pathogens by shielding us from them.
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Only eukaryotic organisms, or those whose cells contain nuclei, undergo mitosis.Our body cells are somatic cells(skin,cheek,stomach cells). These cells must go through mitosis to maintain daily functions of the cells like growth and repairing damaged tissue.
The main things the WWF is doing with regard to circle hooks are supporting innovation and educating people.
Circle hooks help to reduce sea turtle deaths by up to 90%. The WWF has encouraged the elimination of tariffs on these hooks, and funds for further innovation for safer hooks. It has also led education initiatives to inform individuals, industries, and governments of the dangers of J-shaped hooks.
Answer:
B) spliceosome is a correct answer.
Explanation:
spliceosome performs RNA splicing in eukaryotic cellis.
The spliceosome is the molecular machine, which is present inside the nucleus of the eukaryotic.
spliceosome removes the noncoding region called as intron from the pre-mRNA transcript.
Introns are present in the eukaryotic genes, these introns are removed by the splicesome and the process is called splicing, it results in the formation mRNA through which protein is generated.
Thus correct answer is spliceosome: performs RNA splicing in eukaryotic cell.