Answer:
C. Each pruning method was used on only one shrub.
Explanation:
Reproducibility is one of the most important factors contributing to the reliability of scientific research. The researcher must be able to achieve the same results two to three times. In biological research, this is usually done in the from of triplicates i.e. one experiment is repeated three times. This is done for two reasons:
- Producing reproducible results
- Ruling out false positives (a negative result that presents as positive due to error) and negatives (a positive result that presents as negative due to error)
Triplicates rule out the possibility that the observed change was caused by another factor or through mere chance. Therefore, in the current scenario, each pruning method should have been applied to multiple (at least 3) samples of a shrub.
Answer: Remora fish and sharks
Explanation:
Commensalism is the biological association between two organisms whereby one benefits and the other is neither harmed nor benefitted.
A good example is Remora fish and sharks. The remora fish attaches itself to the shark bodies and feed on crumbs of leftovers food eaten by the shark, also get protection from the shark, while the shark is absolutely unaffected.
Answer:
Mitochondria differ from chloroplasts in that mitochondria is the energy bank of every cell while chloroplast houses the chlorophyl that gives green pigmentation for photosynthesis to occur in plants
Explanation:
Transform boundary – this type of fault is found where two tectonic plates are moving alongside and parallel to each other mostly in opposite directions. This type of fault is also responsible for the rift valley and block mountains. No crust is destroyed nor new crust formed.
Convergent boundary – At this point, two tectonic plates are colliding because they are moving in opposite directions at each other. The pressure and stress of the collision force causes the plates to begin crumpling and folding at the boundary forming features such as fold mountains (an example is the Himalayas).
Convergent boundary – At this boundary , the denser of the two colliding tectonic plates (usually the oceanic plate) is subsided by the less dense one (usually the continental plate). The plate being subsided begins to melt as it does down into the mantle and becomes liquid rock. This magma rises through the fissures formed at the boundary and erupts into volcanic islands along the boundary.
