Answer:
a.)
Explanation:
The dense cold salty water from the south sinks to the bottom of the ocean.
B
Secondary succession means the regrowth in an ecosystem that already existed, after a disaster such as floods, fire, and etcetera. This is as opposed to primary succession whereby a new ecosystem is developed where none existed initially, usually on a new substrate.
Explanation:
In the picture on the left looks like a picture of a forest decimated by fire. On the right is a picture of the grass growing on the forest floor. This probably due to the fact that the canopy of the forest was destroyed in the fire enabling sunlight to penetrate to the floe of the forest supporting vegetation growth. This secondary succession. The grass acts like pioneer species. Later, the forest floor will be colonized by perennial, and then woody plants and the ecosystem will be back to its normal state.
Learn More:
For more on ecological succession check out;
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From the bottom trophic level to the top trophic level, the number of organisms decreases. Because there are fewer organisms present in each trophic level, there is typically a smaller amount of biomass in each level as well. Each trophic level in a food chain or food web can be represented in the ecological pyramid.
The correct directions of the winds on this map are the winds marked with the numbers 1, 3, and 5.
The winds marked with the numbers 1, 3, and five are correctly marked. The number 1 winds are the easterlies on the Northern Hemisphere. They move from east towards west. The number 3 winds are the NE trade winds, and their direction of movement in the Northern Hemisphere is from northeast to southwest. The number 5 winds are the Westerlies of the Southern Hemisphere, and they are winds that move from northwest to southeast.
