Most of the cells in the human body are diploid.
Diploid is <span>a cell or organism that has paired chromosomes, one from each parent. In humans majority of the cells are </span>diploid<span> and have 23 pairs of chromosomes. The exception are the human sex cells (egg and sperm cells). These contain a single set of chromosomes and are known as haploid.</span>
d. O2
This is because CO2 (Carbon Dioxide), energy (sunlight), and H2O (water) are all outputs of cellular respiration.
This branch of science is known as anatomy.
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Answer:
four billion years ago the earth had a layer of ozone gas
The crust is the top layer of earth, mostly covered with dirt and rocks. Other layers are rock or molten rock. The top layer is way cooler than the other layers, the closer you get to the Earth's core, the higher in temperature the layer is.
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