Earth’s ozone layer
exists only over antarctica
has been thickening over th...
Biology, 06.10.2019 16:00, alupton4887
Earth’s ozone layer
exists only over antarctica
has been thickening over the past several years
traps carbon dioxide in the stratosphere
filters harmful ultraviolet radiation from the sun
Answers: 2
Biology, 21.06.2019 19:30, 21ghostrider21
Would really appreciate it, i have an idea but not completely sure
Answers: 1
Biology, 21.06.2019 23:10, chanel2371
Blood has traveled from the heart to the toes. which describes the next step of the circulation process?
Answers: 1
Biology, 22.06.2019 07:00, dlatricewilcoxp0tsdw
Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome
Answers: 2
Biology, 22.06.2019 11:00, greciakawaii
2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.
Answers: 1
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