Answer:
The correct answer is - option C. 2 billion.
Explanation:
Cyanobacteria or BGA are microscopic organisms that live in water bodies normally and make their own food. These are unicellular organisms that have been around 3 and a half million years and consider as the first photosynthetic organisms responsible for the availability of oxygen on earth. These cells are also considered as the cell that evolved in the eukaryotic cells by differentiation around 2 billion years ago. The aggregated form of the cells are known as the mats.
Answer:
a chromosome is a cell structure made of DNA,which is found in the nucleus of a cell.
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<u>Answer:</u>
Geologists have sorted earth’s history into different geologic time scale. They just clubbed it into time scales by observing the major changes in the life forms that existed on the earth. Inferring to the fossils found in rocks the time scale was calculated.
First era single cell animals were formed then formed the complex animals.Then Mesozoic era where it is known as the era of dinosaurs. Then the evolution of different species of life during Cenozoic era. These major changes found through fossils helped them to form the GTS.
Answer:
D.) Amino Acids
Explanation:
Please see picture attached to this answer.
To compensate for this dragging, the patient will bend the knee to lift the foot higher than in a normal stride (high steppage). Foot drop typically affects the muscles responsible for moving the ankle and foot upward, specifically the anterior tibialis, extensor halluces longus, and extensor digitorum longus.
