Adaptation has
wide effect on the life of an organism for it is primarily a process rather
than a physical part of a body. All adaptations help organisms to
survive in their <span>chosen
environment. </span>
<span>The adaptive traits
may be structural, behavioral and physiological. Structural adaptations are
physical features of an organism such as shape, internal organization or body
covering. Behavioral adaptations are the ability to learn. They are often inherited
like instincts and the knowledge for searching food or mating. While
physiological adaptations can allow the organism to perform special functions
like for instance, secreting slime, making venom, temperature regulation and
other aspect of homeostasis. </span>
The unique property of an echinoderm within higher invertebrates is their radial symmetry. These echinoderms include the famous starfish, sea urchin, sand dollars, sea cucumbers, and sea lilies. They are found at the ocean depth, form the intertidal zone to the abyssal zone.
For measuring the temperature of a classroom, the best instrument that one can use is the THERMOMETER. The correct option is D.
Thermometer is the instrument that is specifically designed for the measurement of temperature and there are different types of thermometers for measuring different types of temperature.
Note that, barometer is used for measuring atmospheric pressure, sphygmomanometer is used for measuring blood pressure and atmosphotometer does not exist.
Explanation:
The skeletal muscle can be distinguished on the basis of their color which depends on the function they perform.
The muscle which is involved in the slow locomotion like the muscles involved in the breathing and chewing are red whereas the muscle which requires instant energy to perform a function is white.
The difference in the colour is due to the fact that the slow muscle requires a continuous supply of oxygen which is carried by the red blood cells. These red blood cells are stored in the muscle by the myoglobins in the muscle. Due to the accumulation of these red blood cells in the slow oxidative cells therefore they are red in colour.