The correct answer is +/-.
There are different types of interactions and relationships between the various species of an ecosystem. If both species benefit from an interaction, then we talk about a mutualistic interaction which is symbolized by +/+. There are competitive interactions where both of the species are affected negatively and are symbolized as -/-. In this example, while the lion pride is benefited by the interaction, the African wild dog is excluded from specific areas of the ecosystem and therefore the species is disadvantaged. This relationship is symbolized as +/-.
Explanation:
Coral reefs are situated in humid oceans close to the equator. The major coral reef is the Great Barrier Reef in Australia. The subsequent main coral reef is situated off the shore of Belize, in Central America. Further reefs are situated in Hawaii, the Red Sea, and other areas in humid oceans. Coral ecosystems are a basis of nutrition for millions; shield the shorelines from hurricanes and erosion; offer home, to reproducing and nursery grounds for economically important fish species; provide jobs and income to local economies from fishing, recreation, and tourism; are a source of new medicines etc. Coral reefs begin to form when free-swimming coral larvae attach to submerged rocks or other hard surfaces along the edges of islands or continents. As the corals grow and expand, reefs take on one of three major characteristic structures —fringing, barrier or atoll.
No it is not clear cutting is more beneficial
Answer:
The group that receives the treatment in an experiment (here, the watered pot) is called the experimental group, while the group that does not receive the treatment (here, the dry pot) is called the control group. The control group provides a baseline that lets us see if the treatment has an effect.
Explanation:
cephalocaudal principle
The cephalocaudal principle states that development proceeds from top to bottom. According to this principle, a child will gain physical control of their head first. After this, physical control will move downward to the arms and lastly to the legs.