Answer:
A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You can tell if a quantity is a vector by whether or not it has a direction associated with it.
Explanation:
Example: Speed is a scalar quantity, but velocity is a vector that specifies both a direction as well as a magnitude.
The answer would be algae or phytoplankton
The correct answer is C. Tissue
Explanation:
In the diagram, x is between organ and cell level. This implies this level of organization is smaller than an organ but no as small as one cell. In this context, the most suitable term to add to this level is a tissue because these are structures composed of specialized cells, which shows this level encloses cells. Also, a group of tissues forms an organ; this implies the organ is the level that follows the tissue. Examples of this include muscle tissue composed of muscle cells and that is part of organs including the heart.
Quartz
Explanation:
Quartz is a framework silicate made up of interlocking SiO₂. It is the most resistant mineral to weathering.
This is based on the Bowen's reaction series of minerals.
From the series;
- In a given melt, quartz is the last mineral to crystallize out of solution.
- Olivine is usually the first
- Quartz being the last does not readily react with other substances.
- This makes it resistant to agent of weathering.
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Quartz brainly.com/question/5325748
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Answer:
vestigial structures are considered evidence because scientists believe they are structures that were once used by a species ancestors but are not longer needed. these structures do not impair the organism in any way, so there is no need for evolution to get rid of them. for example, the human appendix is considered a vestigial structure.
Explanation:
:D
