Explanation:
The three standard sex symbols are the male symbol ♂ and the female symbol ♀, and the hybrid symbol ×. They were first used to denote the effective sex of plants (i.e. sex of individual in a given crossbreed, since most plants are hermaphroditic) by Carl Linnaeus in 1751.
Answer: There is addition or deletion of one or more nucleotides in a DNA sequence which alters the original reading frame of the DNA.
Explanation: In frameshift mutation, one or more nucleotides is added to or deleted from a DNA sequence resulting in altered reading frame.
For example, a DNA sequence having an original reading frame: (ACT)(GAG)(CCG)(TAT)(G is changed to (ACG)(AGC)(CGT)(ATG) when a thymidine nucleotide at position 3 is deleted. This frameshift mutation will result in the synthesis of complementary DNA strand with an altered nucleotide sequence during replication and an RNA sequence with an altered sequence during transcription and a protein with an altered amino acid sequence.
Its either dead material or organisms that eat producers
Answer:
Volcanic gases. (Ans A)
Explanation:
Ocean water is salty because of the presence of dissolved salt. When water contact with a rock it starts weathering processes and this process starts to dissolve the soluble elements such as sodium out of the rock.
In volcanic gases, lots of chlorine ions are present in the atmosphere, these ions easily dissolve with water and produce the large flux of chloride that splashes into the oceans. So, the most common source of chloride ions in ocean waters comes from the volcanic explosions.
