Physical chemists study matter and energy, and there is chemical reactions in your body, and all living things have elements, like carbon.
I would say D
Answer:
Oxygen levels stay above 15 percent starting 200 million years ago
Explanation:
Atmospheric oxygen levels are related to the evolution on Earth and changes in geochemical cycles that involve climate variations.
The presence of O
2 and evolution of oxygen gave new opportunities to the life on Earth. Oxygen levels in atmosphere have fluctuated between 15% and 35% of atmospheric volume, since the start of the Cambrian period.
So, form the starting 200 million years ago, oxygen level stay above 15 percent and the correct option is "B".
Genome
Explanation:
The genome of an organism is the summation of all the genes in the cells that hold information on how the organism is built and maintained. In higher organisms, the genome also contains non-coding regions that also play a significant role in the cells such as ensuring the integrity of chromosome ends. The genome of a human being is composed of approximately 3 billion base pairs.
The genome of organisms may not necessarily be found in the nucleus of cells, especially in eukaryotes, but in addition can be found even in membrane-bound organelles like the mitochondria and chloroplast.
Learn More:
Learn about the human genome project;
brainly.com/question/12572919
#LearnWithBrainly
Answer:
In the early nineteenth century, married women in the US were legally subordinate to their husbands. Wives could not own their own property, keep their own wages, or enter into contracts. Beginning in 1839, states slowly began to enact Married Women’s Property Acts to allow women more control over their property and finances
