Biology
A tiaga biome is a forest that can be found in the subarctic region, which is an area in the Northern Hemisphere that lies south of the arctic circle. In the tiaga biome grow many evergreen trees that lose very few of their leaves, such as white spruce, balsam fir,
Biology
The sodium-potassium pump was discovered in the 1950s by a Dutch doctor named Jens Christian Skou. He studied the nerves of crabs and became famous for buying 25000 crabs over the years from a local fisherman and boiling them to observe their nerve fibers. On one side of the nervous
Biology
Food webs consist of information that shows what different types of animals e.g., carnivores, eat. In a food web, there are four different classes called producers, first order consumers, second order consumers, and third level consumers. Producers Producers are plants that are at the bottom of the food web,
Biology
The metric system, or International System, is the world's most-used measurement system and the preferred system for scientists. Its abbreviation is S.I., which stands for the French Système Internationale, meaning International System. The metric system can be used to measure many things, from mass to volume, and
Biology
The scientific method is used to verify whether a hypothesis is true or not. This involves making an observation, then a hypothesis, and developing an experiment, gathering data, and then communicating the results. The first part of the scientific method is developing an observation about a problem that needs to
Zoology
Invertebrates have five main traits: They are multicellular, they have no backbone, they can't make their own food, most of them can move, and they do not have cell walls. 1. When we say that an invertebrate is multicellular that means that all of its cells are working
Biology
Life is organized (by size) into many sublevels ranging from atom to biosphere. The smallest unit of matter is the atom. This is the world's basic building block, and can be found in everything. Some examples of atoms are carbon, hydrogen, and oxygen. Different atoms chemically bound together
Zoology
In our diverse world there are six Kingdoms of Life: Protista Kingdom, Fungi Kingdom, Plant Kingdom, the Animalia Kingdom, the Eubacteria Kingdom, and Archaebacteria Kingdom. The Protista Kingdom is the kingdom which consists of algae, and fungi-like slime mold which is a type of mold found in swamps. The Fungi
Biology
For a thing to be considered alive, it has to have seven characteristics. If something does not have all seven of these, then it is not alive. 1. Living Things are composed of Cells. Every living thing is made up of cells, which are like micromachines that do different things,
Zoology
Amphibians The largest Amphibian is the Chinese salamander which is 1.83 meters long, but the smallest one is the paedophryne amanuensis frog which is only 7 millimeters long. Reptiles One of the largest reptiles is the Galápagos Tortoise which is 1.8 meters long. One of the smallest reptiles
Biology
All life consists of cells, which are like small compartments. However, some organisms are made of just one cell. These are called single-celled organisms. Some examples of single-celled organisms are: Amoebae, slime mold, algae, and the malaria parasite. Amoebae are single-celled organisms that do not have a fixed shape. Instead,
Biology
Monotremes (lay eggs) platypus Marsupials (have pouches) wombat kangaroo koala Carnivores (eat meat) lion bear Pinnipeds (have flippers) walrus seal Ungulates (have hooves) pig zebra camel rhino cow Primates (have forward-facing eyes, opposable thumbs, and big brains) lemur ape monkey Cetaceans (aquatic, have blowholes) dolphin whale Sirenians (large, herbivorous, water-dwelling)