Friday, 8 September 2023

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Herbivores, Carnivores and Omnivores

 Animals can be classified based on the food they eat. Animals that are plant eaters are called herbivores, meat-eaters are carnivores, and animals who eat both plants and meat are called omnivores.



Key Facts & Information

Herbivores

  • Animals that eat only plants and plant products are called herbivores.
  • They are referred to as the primary consumers.
  • Herbivores are usually at the second level of the energy pyramid.
  • The energy that herbivores need is high, so they are usually busy feeding themselves because they cannot survive without sufficient energy.
  • They use several defenses to protect themselves from their enemies.
  • Some have shells, poisons that they release from their body, and camouflage abilities.
  • Herbivores come in various sizes, and the world’s largest herbivore is the African elephant.

Types of Herbivores

  • Herbivores can either eat various plants or just one type of plant.
  • Herbivores such as fruit bats and flying foxes that consume only fruits are called frugivores.
  • Folivores are herbivores that mostly eat leaves.
  • Detritivores are those that eat dead plant materials only.
  • Herbivores that consume seeds are called granivores.
  • Nectar-eating herbivores are called nectarivores.
  • Xylophages are herbivores that eat wood.
  • Grazers are herbivores who depend on grass.
  • Two ways herbivores digest their food are through foregut fermentation and hindgut fermentation.
  • Animals with multiple chambers digest their food through foregut fermentation, while animals with single-chambered stomachs process their food through hindgut fermentation.
  • Herbivores such as cows and kangaroos are foregut fermenters, while horses and elephants fall under the hindgut fermenters.

Carnivores

  • Carnivores are animals that consume meat or animal flesh.
  • They hunt their prey to survive, and they are also referred to as predators.
  • Carnivores that consume herbivores are secondary consumers and are usually placed third in the energy pyramid.
  • Carnivores that eat other carnivores are called tertiary consumers and are at the fourth level of the energy pyramid.
  • Their bodies and characteristics are suitable for hunting.
  • However, some carnivores do not hunt and depend on dead or decaying animals for food.
  • These animals are called scavengers.
  • Carnivores who can only consume meat to survive are called obligate carnivores and they cannot digest plants properly.
  • An example of an animal under this category is a lion.
  • There are three distinctions of carnivores based on the meat that they eat.
  • Hypercarnivores have a 70 percent meat diet.
  • The rest of their energy is covered by consuming plants, fungi, and other nutrients.
  • All obligate carnivores are considered hypercarnivores.
  • Carnivores that consume 50 percent meat on their diet are called mesocarnivores.
  • To fill their energy, they can consume fungi, fruits, and vegetables.
  • Carnivores who consume less than 30 percent of meat are called hypocarnivores.
  • They also consume fish, berries, nuts, roots, and bulbs.
  • Some hypocarnivores are also considered omnivores, and the most common example is a bear.

Omnivores

  • Omnivores are animals who consume both plants and animals.
  • Although they eat plants, they cannot eat all types of them.
  • Omnivores are animals who consume both plants and animals.
  • Although they eat plants, they cannot eat all types of them.
  • Humans are also considered omnivores.
  • Omnivores are very adaptable in finding food in different places.
  • Some omnivores are also scavengers.
  • Like carnivores, omnivores are called secondary consumers.
  • They are also in the third trophic level in the energy pyramid.
  • Omnivores are believed to have better chances of living due to their diet.

Saturday, 2 September 2023

Space Food

 Space Food 


Read this article and explain in your own words how things decompose. 

  Alvin and Me Journal