selección sexual

selección sexual

A selection on mating behavior, either through competition among members of one sex (usually males) for access to members of the other sex or through choice by members of one sex (usually females) of certain members of the other sex. In sexual selection, individuals are favored by their fitness relative to other members of the same sex, whereas natural selection works on the fitness of a genotype relative to the whole population.

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selección

고고학; 인간 진화

Véase selección natural.

selección

소프트웨어; 운영 체제

The portion of an on-screen file that has been marked as subject to user action.

selección

생물; 유전학

Process which favors one feature of organisms in a population over another feature found in the population. This occurs through differential reproduction—those with the favored ...

selección

농업; 쌀 과학

1). In genetics, discrimination among individuals in the number of offspring contributed to the next generation with a defined target. 2). In plant breeding, the process that ...

hongos

고고학; 진화

A group of organisms comprising the kingdom Fungi, which includes molds and mushrooms. They can exist either as single cells or make up a multicellular body called a mycelium. ...

ley

고고학; 진화

A description of how a natural phenomenon will occur under certain circumstances.

pirimidina

고고학; 진화

A kind of base. In DNA, cytosine (C) and thymine (T) are pyrimidines. In RNA, cytosine (C) and uracil (U) are pyrimidines.

ecosistema

고고학; 진화

A community of organisms interacting with a particular environment.

célula fotorreceptora

고고학; 진화

A cell, functionally part of the nervous system, that reacts to the presence of light. It usually contains a pigment that undergoes a chemical change when light is absorbed. This ...

mitocondria

고고학; 진화

A kind of organelle in eukaryotic cells. Mitochondria produce enzymes to convert food to energy. They contain DNA coding for some mitochondrial proteins.

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Festival del Bote Dragón

Celebrado en China, así como en otros países del Sureste de Asia, el Festival del Bote Dragón es el quinto day del quinto mes del calendario lunar. En ...