The oxygen in the upper atmosphere combine to form ozone layer (o3) that allows to colonize surface water.
Explanation:
The fossil stomatolites are formed at about 3.0 ga laminated bacteria. they form the sediments to fall into a thin film of bacteria, these bacteria binds with the sediment and grows through it.
Cynobacteria uses water, CO2 and sunlight to create their own food and produce oxygen as a by product. The significance of stromatolites is that they are earliest fossil evidence life on earth.
They were first organism to photosynthesis and produce oxygen.
Answer:
Among the given list of diseases, HIV should be reportable diseases to protect public health. Explanation: It is because disease such as Heart ...
Explanation:
The answer is C. Cognitive disabilities and birth defects.
Consuming alcohol during pregnancy can cause a condition in a fetus called fetal alcohol syndrome. This results in cognitive impairment and physical defects in the child. Such impairments and defects include learning disabilities, malformations of the skeletal system and major organ systems (specifically the heart and brain), inhibited growth, central nervous system complications, poor motor skills, mortality, and difficulty with learning, memory, social interaction, attention span, problem solving, speech and or hearing.
It will help to improve a persons performance.
