Answer:
A) The presence of iron oxides (rust) in sedimentary rock layers that are 2 billion years old.
Explanation:
- Cyanobacteria are aquatic and photosynthetic ,they live in water and manufacture own food releasing oxygen as a by product and in which most living organisms depend on.
- Cyanobacteria are found in the ocean and are believed to be responsible for the formation of the iron oxide found on the sedimentary rocks since they release oxygen as a by product and it is used in the iron oxide formation process below the level of wave disturbance.
Answer:
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Explanation:
Advancing Technologies, synthetic nerves (real thing!)
Direct Harvesting, poaching rhinos :'(
Pollution , chemical plant runoff, like an oil plant exploding or something..
Atmospheric changes , ice age 11,700 years ago, now HOT!!
Endangered species, white rhinos (2 left in captivity, both females...) :'(
Invasive species, feral pig
Global warming, no offence but i feel that global warming is not a thing, going from hot to cold is a normal process as earth is not always the same distance always from the sun, but i will give you an example, increased heat % over the years.
Answer:
Carboxylic acid.
Explanation:
Amino acids are made up of the amine group, carboxyl group, hydrogen and R hydrophobic chain. Amino acids are the monomers of the protein and they are coded by the particular codons.
Amino acids contains both the amino group and the carboxyl group. The carboxylic group is a polar group and becomes negative charged when the pH of the solution is greater than the pKa value of the amino acids.
Thus, the answer is carboxylic acid.
Answer:
its B: Gluteus maximums
Explanation:
Gluteus maximus is the largest and most superficial of all the gluteal muscles that form the buttock mass (site of intramuscular injection). It is a complex and powerful thigh extensor muscle
