<span>The stinging organelle of paramecium that assists it in capturing large prey is called trichocyst.
It is used by many organisms as both a defense mechanism, as well as for capturing food. The organism uses this organelle so as to paralyze its prey and later eat it.
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Proteins, Ribonucleic acid is another kind of organic molecule that also acts as a catalyst for chemical reactions. Asides acting a catalyst for chemical reactions, proteins have a wide variety of functions that they perform in in living cells.
Answer:
B. Offering advice about how best to perform a standard procedure.
Explanation:
Helping others can be in different ways, be it helping out or by giving encouraging words or advice. But in all aspects of help, there is always a positive outcome if help is given in the right way and at the right time. And it is also how one person lifts another.
A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful. The other options are all negative in their 'approach' which will only hinder the colleague in his/her works.
Thus, the correct answer is option B.
The correct answer is: B) As land plants became more complex, animal life did as well.
This is because land could not be colonized by other organisms such as animals until land plants became established-there was nothing for animals to feed on.
So, plants were one of the earliest organisms to leave the water and colonize land.
The right answer is genotype.
The genotype is the information carried by the genome of an organism, contained in each cell in the form of deoxyribonucleic acid DNA. Carried by the chromosomes, it is located inside the nucleus in eukaryotes and in cytoplasm in prokaryotes.
In humans, it is estimated that the number of genes is between 25,000 and 30,000.
