Recent questions in Science

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The oxidation of an alcohol can produce either an aldehyde or what?

asked Jan 2 in Science by NFDRoman4328 (1.8k points)

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The ovules, which are the female gametophytes, are held in what organ?

asked Jan 2 in Science by CWDKristeen0 (1.7k points)

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The overall purpose of the light-dependent reactions is to convert light energy into this?

asked Jan 2 in Science by XLNDorris808 (1.7k points)

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The ovaries produce estradiol and progesterone, which cause secondary sex characteristics and prepare the body for?

asked Jan 2 in Science by FrederickTho (1.9k points)

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The outermost layer of the leaf is the epidermis; it is present on both sides of the leaf and is called the upper and lower epidermis, respectively. botanists call the upper side the adaxial surface (or adaxis) and the lower side this?

asked Jan 2 in Science by LinetteWaldo (1.6k points)

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The outer surface of the heart changes from positive to negative during what?

asked Jan 2 in Science by AudraNowlin6 (2.2k points)

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The outer planets are made of hydrogen and helium, so they are termed what?

asked Jan 2 in Science by DerrickKong0 (1.7k points)

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The outer layer of what anatomical structure is so tough that it keeps out most pathogens?

asked Jan 2 in Science by BuckY7205505 (1.7k points)

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The other ammonium ions are changed into nitrogen gas by what?

asked Jan 2 in Science by RenaCastella (1.7k points)

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The ostwald process is the commercial method for producing what?

asked Jan 2 in Science by AudraNowlin6 (2.2k points)

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The ostrich, kiwi, rhea, cassowary, and moa are examples of what kind of birds?

asked Jan 2 in Science by KitRatley759 (1.9k points)

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The organs of female mammals that that produce eggs are called what?

asked Jan 2 in Science by MavisRevell (1.7k points)

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The organ systems of the body work together to carry out life processes and maintain what?

asked Jan 2 in Science by EdithLindt35 (1.6k points)

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The ordovician-silurian extinction event is the first recorded mass extinction and the second largest. during this period, about what percent of marine species went extinct?

asked Jan 2 in Science by MillaFredric (1.5k points)

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1 answer 127 views

The orbicularis oris is a circular muscle that moves the lips, and the orbicularis oculi is a circular muscle that does what?

asked Jan 2 in Science by ConcettaAmse (2.0k points)

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1 answer 67 views

The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity. the period is completely independent of other factors, such as this?

asked Jan 2 in Science by TomokoSorian (2.2k points)

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1 answer 104 views

The only obvious difference between boys and girls at birth is what type of organs?

asked Jan 2 in Science by ValentinaWil (2.2k points)

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The only invertebrates than can fly belong to what broad group, which is highly successful?

asked Jan 2 in Science by OliveMatthae (2.1k points)

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1 answer 62 views

The oldest fossil of land plants date back how many millions of years?

asked Jan 2 in Science by LouiePartrid (1.8k points)

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1 answer 75 views

The oceans affect earth’s atmosphere and influence its what?

asked Jan 2 in Science by MikaylaBoreh (2.4k points)

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