General

General

General nature or nature terms.

Industry: Natural environment

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General

lithosphere

Biology; General

The solid outer layer of the Earth; includes both the land area and the land beneath the oceans and other water bodies.

logistic growth model

Biology; General

A model of population growth in which the population initially grows at an exponential rate until it is limited by some factor; then, the population enters a slower growth phase and eventually ...

osteocytes

Biology; General

Bone cells that lay down new bone; found in the concentric layers of compact bone. Bone cell, a type of connective tissue.

osteoporosis

Biology; General

A disorder in which the mineral portion of bone is lost, making the bone weak and brittle; occurs most commonly in postmenopausal women.

1) In animals, the female gonads, which produce eggs (ova) and female sex hormones. 2) In þowers, part of the female reproductive structure in the carpel; contain the ovules, where egg development ...

oviducts

Biology; General

Tubes that connect the ovaries and the uterus; transport sperm to the ova, transport the fertilized ova to the uterus, and serve as the site of fertilization; also called the fallopian tubes or ...

ovulation

Biology; General

The release of the oocyte onto the surface of the ovary; occurs at the midpoint of the ovarian cycle. The release of the ovum (egg) from the ovary after the peaking of luteinizing hormone ...