Answer:
to code for protein synthesis
Explanation:
Variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.
Answer:
Cell membranes in cold tolerant winter wheat plants have a higher ratio of unsaturated fatty acids to saturated fatty acids than do cold intolerant wheat varieties.
Yeast cells that produce more unsaturated fatty acids than saturated fatty acids in response to cold have greater cold tolerance.
Explanation:
The organisms which live in cold environment must have more amount of unsaturated fatty acids as compared to saturated fatty acids because <u>unsaturated fatty acids tend to freeze at comparatively lower temperature which provides the organisms an advantage and better adaptability to live in such environments. </u>The unsaturated fatty acids will not freeze easily even in cold environment and their body/cell will keep working perfectly even in cold weather. In contrast to this, the saturated fatty acids will freeze easily and the whole system of that organism will collapse during winter season.
Same goes with yeast. more unsaturated fatty acids in the body as compared to saturated fatty acids will help the yeast to live in cold environment. The reason for better adaptability is same as above.
Igneous rocks turn into sedimentary rocks by weathering. Sedimentary rocks turn into metamorphic rocks by heat and pressure. Metamorphic rocks turn into igneous rocks by melting lava. Igneous rocks turns into metamorphic rocks by heat and pressure.
Answer:
A) the lymphatic system only carries fluid away from tissues.
Explanation:
More differences between lymphatic system and circulatory system are:
• Circulatory system consists of a network of blood vessels through which blood is pumped by a “pump” called heart. In lymphatic system there is no such thing as a pump (only lymphatic vessels and lymph nodes)
• Lymph capillaries are closed on one side, so lymph does not circulate, but only drains to reach veins .
• Circulatory system has different role than lymphatic system: it tranports oxygen and other gases, nutrients and hormones, but also wastes that need to be excreted. On the other hand, lymphatic system has a role in immune system, fat and vitamin absorption and transportation.
