Blue whales are generally considered helpful to marine ecosystems. As the largest animals on Earth, they play a crucial role in nutrient cycling; their feeding and excretion contribute to the health of ocean ecosystems by promoting phytoplankton growth, which is vital for carbon capture. While they are not harmful to humans, their massive size can pose risks in shipping lanes. Overall, their ecological contributions far outweigh any potential drawbacks.
Sandpaper is both helpful and harmful.
they are helpful because they are
blue whales are active in both day and night.
They are more helpful than harmful. My two gerbils are both helpful. They've helped me in many ways and so that's why I say they're more of helpful than harmful.
Both
both
Both only when it infects it is harmful
They are helpful because they clean out intestines. they are harmful because they can cause diseases
computer.. both helpful and not..
They're both aquatic mammals
Bacteria can be both harmful and helpful. Harmful bacteria can cause diseases in humans, animals, and plants. However, some bacteria are beneficial and play important roles in processes like digestion, nutrient cycling, and decomposition.
a bacillus bacteria