Answer:
Oxygen
Explanation:
Plants produce oxygen as a bi-product during photosynthesis.
The correct answer is A. Is that which benefits others while causing a disadvantage to the individual.
Explanation:
In biology, altruistic behavior occurs as one organism actions benefit other organisms either because these actions increase the reproductive fitness or the chances an organism survives and prevails over time. Additionally, altruistic behavior implies there is a disadvantage for the organisms acting in the benefit of others. For example, wolves or similar animals take food to those that did not participate in hunting, which means they help other wolves to survive on their own cost as this means less food for those that hunted. According to this, altruistic behavior "is that which benefits others while causing a disadvantage to the individual".
Answer:
The term insecure laboratory procedures in the definition of the bio-hazard presented in the educational module refers to the "safe pipetting and other work done".
Explanation:
The "insecure laboratory procedure" tells us about the "safe pipetting and miscellaneous work practices" in the bio-hazard risk management as any mistake or wrong application may lead to some wrong chemical reaction which will cause huge damage or any side effect. Hence, safe pipetting or safe handling while working with bio hazards are necessary. Proper disposal, proper disinfectant and proper clean up are necessary. Proper care should be taken to avoid the contact of chemicals during pipetting.
The correct statement is that "Archaea are older organisms than eukaryotes"
- Archaeans are group of organisms classified under the domain Archaebacteria. They are found in environments with extreme conditions e.g. high temperature etc.
- They are prokaryotic in nature i.e. they do not possess a membrane-bound nucleus in their cells.
- Based on this, archaea are not classified under the same domain as bacteria (domain- protista). They are unicellular organisms.
- However, archaea are older set of organisms than eukaryotes. This is the correct statement among the options provided.
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