Answer:
Origin of Viruses. ... Small viruses started as runaway pieces of nucleic acid that originally came from living cells such as bacteria. Large viruses were once parasitic cells inside bigger host cells. Over time, genes needed to survive and reproduce outside host cells were lost.
Carnivores' biological traits aid in their ability to hunt. Wolves and other carnivorous mammals have powerful jaws and large, sharp teeth that enable them to seize and tear apart their food. On the other hand, plant-eating animals typically have large molars that aid in the grinding of leaves and grasses.
Carnivores are the largest animals in the world. The blue whale can grow to be 30 meters (100 feet) long and up to 180 tonnes in weight (200 tons). It eats by gulping down large amounts of water and filtering out microscopic krill organisms, which resemble shrimp. About 40 million of the tiny animals, or 3.6 metric tonnes (4 tonnes), can be consumed daily by blue whales.
The polar bear, which mostly consumes seals, is the largest terrestrial carnivore. Sharp claws are a hunting tool for cats like lions, cougars, and other species. Birds with talons, often known as claws, use them to hunt, including hawks and owls. The curved beaks of many carnivorous birds, known as raptors, are used to break apart their prey.
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Answer:
Option C. The lungs.
Explanation:
Alveolis are the air sacs in the lungs which main function is to get oxygen into your bloodstream and carbon dioxide leaves the blood.
The alveolis are located in the lungs, and it's where the respiratory and circulatory systems meet, for the reasons stated before.
Therefore, the correct option is Option C.
Answer:
Japanese
Explanation:
But it is thought not a fact.
