Recent questions in Science

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Pakicetus and rodhocetus are considered to be ancestors of modern what?

asked Dec 31, 2024 in Science by CharleyBlanc (390 points)

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Pairs of fish that do not practice broadcast what may exhibit courtship behavior?

asked Dec 31, 2024 in Science by MairaDaves92 (350 points)

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Paint keeps oxygen and water from coming into direct contact with the metal, which prevents what?

asked Dec 31, 2024 in Science by GuyLithgow70 (450 points)

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Paddles and hammers are examples of simple machines that increase the distance over which force is applied, while reducing what?

asked Dec 31, 2024 in Science by LizaW812340 (390 points)

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Oysters require a certain minimum population density because they must be in close proximity to do this?

asked Dec 31, 2024 in Science by MckenzieMaul (490 points)

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Oxygenated blood is transported by what system?

asked Dec 31, 2024 in Science by TaraCrommeli (170 points)

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Oxygenated air, taken in during inhalation, diffuses across the surface of the lungs into the what?

asked Dec 31, 2024 in Science by Jaimie13906 (250 points)

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Oxygen is essentially just a waste product of the light reactions of what?

asked Dec 31, 2024 in Science by LaureneLeves (350 points)

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Oxygen has the second highest electronegativity of any element; consequently, it prefers to share or accept electrons from other elements. only with fluorine does oxygen form compounds in this?

asked Dec 31, 2024 in Science by EmoryHuang60 (650 points)

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Oxygen and what are required for rust to form?

asked Dec 31, 2024 in Science by DominickDarb (330 points)

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Oxides of small, highly charged ions of what type tend to be acidic?

asked Dec 31, 2024 in Science by EarleneSumme (370 points)

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Oxidation does not necessarily require heating. which is the common and natural method of oxidation?

asked Dec 31, 2024 in Science by JesseEarnhar (130 points)

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Ovulation takes place in what organ and is part of the menstrual cycle?

asked Dec 31, 2024 in Science by GeorgettaGos (290 points)

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Ovulation is the release of an egg from the what?

asked Dec 31, 2024 in Science by VanitaArregu (390 points)

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Oversecretion of insulin can cause what?

asked Dec 31, 2024 in Science by FlynnA74878 (390 points)

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Overpopulation takes place when the number of organisms in an area exceeds what?

asked Dec 31, 2024 in Science by Emerson1291 (290 points)

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Overharvesting is a serious threat particularly to which species?

asked Dec 31, 2024 in Science by Brandon4312 (350 points)

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Over time, what changes solid rock into pieces?

asked Dec 31, 2024 in Science by EbonyGulley3 (350 points)

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Over time, deposited sediments may harden into what?

asked Dec 31, 2024 in Science by MarioY134267 (270 points)

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Over 90% of the energy we use comes originally from what?

asked Dec 31, 2024 in Science by ArlenAbt9111 (350 points)

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