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Evaluate the following expression

by Dr. Osama M. Khaled — published Mar 13, 2024 Located in Mathematics / … / Multiplying Fractions / Evaluate exponential expressions that have fractional bases

Triangles

by Dr. Osama M. Khaled — published Oct 12, 2025 — last modified Oct 18, 2025 08:16 AM

Triangular shapes are especially important because triangles contribute strength and stability to walls and towers. The gable roofs of houses are triangular, ...

Located in Mathematics / Geometry

a collection of all ecosystems on Earth

by Dr. Osama M. Khaled — published Oct 27, 2021 — last modified May 30, 2025 09:04 PM Located in Biology / Basics / Introductory concepts in Biology - 2

A set of populations inhabiting a particular area

by Dr. Osama M. Khaled — published Oct 27, 2021 — last modified May 30, 2025 09:04 PM Located in Biology / Basics / Introductory concepts in Biology - 2

All living things in a particular area together with the abiotic, nonliving parts of that environment

by Dr. Osama M. Khaled — published Oct 27, 2021 — last modified May 30, 2025 09:04 PM Located in Biology / Basics / Introductory concepts in Biology - 2

An organism that cannot make its own food and must consume other organisms to obtain its energy

by Dr. Osama M. Khaled — published Oct 27, 2021 — last modified May 30, 2025 09:04 PM Located in Biology / Basics / Introductory concepts in Biology - 2

An organism with cells that have nuclei and membrane-bound organelles

by Dr. Osama M. Khaled — published Oct 27, 2021 — last modified May 30, 2025 09:04 PM Located in Biology / Basics / Introductory concepts in Biology - 2

The ability of an organism to maintain constant internal conditions

by Dr. Osama M. Khaled — published Oct 27, 2021 — last modified May 30, 2025 09:04 PM Located in Biology / Basics / Introductory concepts in Biology - 2

The highest level of the taxonomic hierarchy; includes the Eukarya, Archaea, and Bacteria

by Dr. Osama M. Khaled — published Oct 27, 2021 — last modified May 30, 2025 09:04 PM Located in Biology / Basics / Introductory concepts in Biology - 2

ِِِِِAn individual living entity

by Dr. Osama M. Khaled — published Oct 27, 2021 — last modified May 30, 2025 09:04 PM Located in Biology / Basics / Introductory concepts in Biology - 3

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