Answer:
Ecological Niche. The functional role of an organism or a species in the ecosystem, including its relationships with other species. ecology. The study of the distribution, abundance, and interrelationships of organisms and their interactions with the environment. Ecosystem
Explanation:
Well only plant cells have cell walls and cell membranes while animal cells only have cell membranes
C) they are passed onto offspring
All of Darwin's selections are based upon the tenet that they are heritable, which is to say passed from one generation to the next
Answer:
C)Alcoholic and lactic acid
<span>a. Fish have a single central heart; earthworms have several hearts.
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Multi cellular organisms are made up of billions of cells each specialized to a unique role and these cells are organized into structural and functional units such as tissues and organs.
For each cell and organ to function optimally, it requires oxygen and nutrients and needs carbon dioxide and metabolic waste taken away in a continuous, never ending process.
<span>A mechanism is needed to accomplish the important function of transporting the relevant materials to and from the cell. The circulatory system fits this bill splendidly. It is a specialized organ system which allows blood and lymph to flow through the entire body carrying nutrients such as glucose, amino acids and electrolytes as well as oxygen to each cell, at the same time carting away carbon dioxide and all sorts of metabolic waste over to excretory organs to be expelled from the body.
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