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valina [46]
3 years ago
8

7. Where does oxygen come from in nature?

Biology
2 answers:
amm18123 years ago
6 0

Answer: Most of Earth's oxygen comes from tiny ocean plants – called phytoplankton – that live near the water's surface and drift with the currents. So, mostly from plants, trees etc...

Hope I helped!

Nuetrik [128]3 years ago
6 0

Answer:

Most of Earth's oxygen comes from tiny ocean plants called phytoplankton that live near the water's surface and drift with the currents.

Explanation:

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Nondisjunction that occurs during meiosis II produces what?
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Answer:

Both of these daughter cells will then go on to divide once more in meiosis II, producing 4 daughter cells, 2 with n+1 and 2 with n-1. Nondisjunction in meiosis II results from the failure of the sister chromatids to separate during anaphase II.

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Compare and contrast pluripotent cells and totipotent cells
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In suspension cultures (liquid media), it has been demonstrated that single cells can regenerate to form an entire plant, and undergoes all the natural stages of embryo development.

Totipotent stem cells give rise to all types of cells including the placenta and embryo in animals.Pluripotent cells on the other hand are cells that are capable of self-renewing into the three different germ layers of an embryo forming an adult without giving rise to placenta. As the embryo grows, it develops into multipotent cells.

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Define taxon ? give some example of taxon at different hierarchical level<br>please answe de do​
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Each unit or category of classification is termed as a taxon. It represents a rank. For example, the basic level of classification is species, followed by genus, family, order, class, phylum or division, in ascending order. ... So each of these categories can be called as a taxon.

Explanation:

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The nucleus contains the cells genetic material in the form of?
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In the form of DNA.........
5 0
3 years ago
Read 2 more answers
HELP!!!
Mashutka [201]

Answer: Classified as a theory.

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Because the idea that the universe has expanded explains such a large number of observations, which in turn leads to more predictions and therefore more observations that support it, this becomes your system of ideas. Because this system was based off of the aforementioned observations in the first paragraph, this proves that it is best classified as a theory.

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