Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Conditions on Early Earth

Conditions on Early Earth

Around 4 billion years ago, oceans began to condense on earth while volcanic eruptions released nitrogen, carbon dioxide, methane, ammonia, and hydrogen into the primordial atmosphere. However, organisms with the characteristics of life were not initially present on earth. Scientists have used experimentation to determine how organisms evolved that could grow, reproduce, and maintain an internal environment.

Distribution and Dispersion

Distribution and Dispersion

To understand intra-specific interactions in populations, scientists measure the spatial arrangement of species individuals. This geographic arrangement is known as the species distribution or dispersion. Highly territorial species exhibit a uniform distribution pattern, in which individuals are spaced at relatively equal distances from one another. Species that are highly tied to particular resources, such as food or shelter, tend to concentrate around those resources, and thus exhibit a...

Primary Production

Primary Production

The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.

Interphase

Interphase

The cell cycle occurs over approximately 24 hours (in a typical human cell) and in two distinct stages: interphase, which includes three phases of the cell cycle (G1, S, and G2), and mitosis (M). During interphase, which takes up about 95 percent of the duration of the eukaryotic cell cycle, cells grow and replicate their DNA in preparation for mitosis.

Inclusive Fitness

Inclusive Fitness

Most altruistic behavior—in which one animal helps another at a cost to themselves—occurs between relatives. Scientists think these altruistic behaviors evolved because they increase the inclusive fitness of the animal providing help.

Communication

Communication

Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

<i>Macrolepiota macilenta</i> and <i>M. pallida</i>, two new species from North America.

Fungal systematics and evolution·2025

Same author

Torque complexity of maximal knee extensor isometric contraction in individuals following anterior cruciate ligament reconstruction.

Clinical biomechanics (Bristol, Avon)·2023

Same author

Micromanipulation of male and female gametes ofNicotiana tabacum: I. Isolation of gametes.

Plant cell reports·2019

Same author

Micromanipulation of male and female gametes ofNicotiana tabacum: II. Preliminary attempts for in vitro fertilization and egg cell culture.

Plant cell reports·2019

Same author

Agriculture causes nitrate fertilization of remote alpine lakes.

Nature communications·2016

Same author

Ultrastructure of the sperm of Plumbago zeylanica : II. Quantitative cytology and three-dimensional organization.

Planta·2013

Same journal

2nd International Apomixis Conference (AP02001) at Como, Italy, 24-28 April 2001.

Sexual plant reproduction·2014

Same journal

Parthenogenetic egg cells of wheat: cellular and molecular studies.

Sexual plant reproduction·2014

Same journal

Analysis of gene expression during flowering in apomeiotic mutants of Medicago spp.: cloning of ESTs and candidate genes for 2n eggs.

Sexual plant reproduction·2014

Same journal

Strategies for isolating mutants in Hieracium with dysfunctional apomixis.

Sexual plant reproduction·2014

Same journal

Tripsacum dactyloides (Poaceae): a natural model system to study parthenogenesis.

Sexual plant reproduction·2014

Same journal

Apospory and parthenogenesis may be uncoupled in Poa pratensis: a cytological investigation.

Sexual plant reproduction·2014

See all related articles

Search research articles

Related Experiment Video

Updated: May 2, 2026

Online Explorative Study on the Learning Uses of Virtual Reality Among Early Adopters

Online Explorative Study on the Learning Uses of Virtual Reality Among Early Adopters

Published on: November 22, 2019

Online First publication

¹, .

Sexual Plant Reproduction

|February 28, 2014

Summary

No abstract available in PubMed .

More Related Videos

Interactive and Visualized Online Experimentation System for Engineering Education and Research

Interactive and Visualized Online Experimentation System for Engineering Education and Research

Published on: November 24, 2021

In Silico Clinical Trials for Cardiovascular Disease

In Silico Clinical Trials for Cardiovascular Disease

Published on: May 27, 2022

Related Experiment Videos

Last Updated: May 2, 2026

Online Explorative Study on the Learning Uses of Virtual Reality Among Early Adopters

Online Explorative Study on the Learning Uses of Virtual Reality Among Early Adopters

Published on: November 22, 2019

Interactive and Visualized Online Experimentation System for Engineering Education and Research

Interactive and Visualized Online Experimentation System for Engineering Education and Research

Published on: November 24, 2021

In Silico Clinical Trials for Cardiovascular Disease

In Silico Clinical Trials for Cardiovascular Disease

Published on: May 27, 2022