Answer:
"Alfred Wegener suggested that continental drift occurred as continents cut through the ocean floor, in the same way as this icebreaker plows through sea ice. ... The supercontinent later broke apart and the continents having been moving into their current positions ever since. He called his hypothesis continental drift."
Explanation:
Ans. They use the help of the brain and nerves
Answer:
vertebrate
Explanation:
The subphylum Vertebrata click this icon to hear the preceding term pronounced includes all of the familiar large animals and some rare and unusual ones as well. The 7 living classes of vertebrates are distinguished mostly on the basis of their skeletal system, general environmental adaptation, and reproductive system.
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Answer:
1. What do contractile vacuoles do? A. Pump water out - Contractile vacuoles are membrane-bound organelles that pump water out of the cell.
2. Parasitism is an example of which of the following? B. A density-dependent factor - Parasitism and diseases are density-dependent effects, because the denser the host population, the more easily parasites can spread from one host to another.
Answer:
Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.
Explanation:
Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.
