Answer:
We know that the movement of tectonic plates is a continuous process. Divergent plates cause the ocean floor to expand. Because of slab pull, subduction, and other processes, the landmasses keep drifting. Because of these movements, continents are continually moving apart from each other. It’s possible that one day they will collide to form a giant landmass and become another Pangea.
Some agree its in the billions range somewhere close to 3 billion.
Climate is the long-term average weather conditions that occur in a particular region. Climate depends on how average weather conditions change throughout the year.
Answer:B The nervous system controls the speed at which food moves through the digestive system
Explanation:During digestion,the nervous system helps to control the actions that takes place.they stimulate digestive juices and the muscles of digestive organs.
The extrinsic nerves comes to the digestive tract from the brain and the spinal cord.they release chemicals; acetylcholine and adrenaline.
Acetylcholine causes the muscles of the digestive organs to squeeze and push the food through the tract.adrenaline relaxes the muscles and reduces blood flow to the organs.these occurs unconsciously.
The intrinsic nerves acts to speed up or delay the movement of food in the digestive tract and also the production of digestive juices.
Answer:
The fact that Anolis lizards could survive in habitats outside of the Caribbean is a reflection of their fundamental niche and their realized niche.
Explanation:
The ecological niche is the survival strategy used <em>by species</em>, all the environmental factors that influence it's growth, survival, and reproduction. These factors also include interaction with other species. The ecological niche can be divided into two groups:
- <em>The fundamental niche</em>, which has all the <u><em>physic conditions</em></u> necessary for the species to survive in the absence of interactions with other species. All the species requirements in a determined space.
- <em>The realized niche</em> is a restringed condition where the species live as a result of their<u><em> interaction</em></u> with other species. In this case, species are limited by the competition effect. This niche is part of the fundamental one.
A species´ niche includes interactions with all the environmental biotic and abiotic factors