Answer:
The acidity of sweat contributes to the acid mantle that inhibits bacterial growth in the skin. The three forms of skin cancer are defined by the types of cells in which they originate.
The answer is blubber,<span>a special type of fat found in marine mammals that provides insulation? </span>
Answer: The space between the sun and Earth contains no matter.
Explanation:
MODES OF HEAT TRANSFER
1. Conduction: This type of heat transfer happens when there is direct contact between the two objects.
2. Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas).
3. Radiation: This type of heat transfer happens when there is direct transfer of energy through space.
Thus convection can not take place between earth and sun as there is no liquid or gas present for movement of heat. The heat is transferred from sun to earth by radiation as it occurs through space.
Answer:
1. Beak shape and depth
2. Long beaks; short beaks
3. Tall beaks; shallow beaks
4. Protein
5. Genes; macroevolution
Explanation:
Two genes, CaM and BMP4, control beak shape and depth, respectively, in finches. High levels of CaM expression will result in long beaks, whereas low levels of CaM expression will result in short beaks. High levels of BMP4 expression will result in tall or deep beaks, whereas low levels of BMP4 expression will result in shallow beaks. Therefore, the degree of expression and, consequently, the amount of protein produced, affects beak development in utero. Therefore, small changes to the genes within a developing embryo could result in the formation of new species, providing both evidence and a mechanism for macroevolution .
Note:
The BMP4 gene is the gene for Bone morphological protein 4. It determines how deep or tall the beak will be.
The CaM gene is the gene for Calmodulin. It regulates how long a beak will grow.