Science & Nature · 2
What is the process by which a population increases in size?
Answer
Population growth
Population growth is the increase in the number of individuals in a population over time, determined by birth rate, death rate, immigration, and emigration. Exponential growth occurs when resources are unlimited and occurs according to the equation Nt = N0 * e^(rt). Eventually, populations reach logistic growth where carrying capacity limits further growth due to resource competition, predation, and disease. Understanding population dynamics is crucial in ecology, conservation biology, and public health. Human population growth has accelerated dramatically since industrialization, raising sustainability concerns.
💡 Did you know?
Global human population reached 8 billion in November 2022 and is projected to peak around 2086 before declining.
Other options people guess
- Predation
- Migration
- Succession
Topics
- ecology
- population-biology
Know your science & nature trivia?
Play a free Science & Nature quiz and see how many you get right — no signup needed to start.
More Science & Nature facts
Science & Nature
What is the name of the phenomenon where organisms become more adapted to their environment over generations?
Bacteria develop antibiotic resistance in just years through adaptive evolution, a critical public health concern.
Science & Nature
What percentage of Earth's oxygen is commonly but inaccurately attributed to the Amazon rainforest?
Earth's excess oxygen actually comes from marine algae in the oceans, not from rainforests. However, the Amazon is crucial for absorbing 15% of atmospheric CO2.
Science & Nature
What term describes an area experiencing serious environmental damage where few species can survive?
The Gulf of Mexico's ecosystem demonstrates how agricultural practices influence coastal marine health, emphasizing connections between land and ocean.
Science & Nature
What is the pH of pure water at 25°C?
The pH scale (0-14) has 7 as neutral; below 7 is acidic (lemon juice ~2), above 7 is basic (bleach ~13).
Science & Nature
What is the freezing point of water on the Kelvin scale?
Absolute zero (0 K) is the coldest theoretically possible temperature; water's freezing point of 273.15 K occurs at relatively warm conditions.
Science & Nature
What is the name of the rotating equatorial cloud band on Jupiter?
Jupiter's jet streams can exceed 540 km/h (330 mph), among the fastest winds in the solar system.