Biology Basics: Characteristics of Living Things and Biodiversity

Reproduction, Movement, Sensitivity, Feeding, Growth, Respiration, and Excretion

Cells

Biodiversity is the variety of living things in the world. It is currently decreasing at an alarming rate, with over half the planet's animal species already extinct.

<p>Pollution, Climate Change, International trade, Habitat Destruction, and Intensive Agriculture</p> Signup and view all the answers

<p>A species is a group of organisms that can exchange genes and interbreed. Organisms within a species can exchange genes and produce fertile offspring.</p> Signup and view all the answers

<p>The animal kingdom is divided into vertebrates and invertebrates. Vertebrates have a backbone, while invertebrates do not.</p> Signup and view all the answers

<p>An organism that lives in or on another one and its life depends on another one.</p> Signup and view all the answers

<p>Through photosynthesis.</p> Signup and view all the answers

<p>They act as decomposers and help break down organic matter.</p> Signup and view all the answers

<p>Phytoplankton produce their own energy through photosynthesis, while zooplankton eat phytoplankton or other zooplankton.</p> Signup and view all the answers

<p>Eutrophication is the over enrichment of nutrients, causing overgrowth and decay of plants, deoxygenation of water, and the death of its organisms.</p> Signup and view all the answers

<p>They produce 80% of the oxygen we breathe and are the base of the ocean's food chain.</p> Signup and view all the answers