Answer:
White blood cells.
Explanation:
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
Answer:
Over 800,000
<em>Arthropods are found in all parts of the world in a wide variety of environments, from the deep sea to the frozen arctic regions. Over 800,000 species of arthropods have been identified, but scientists estimate that there may be tens of millions of species in this phylum, many of them yet to be discovered!</em>
Explanation:
correct me if im wrong
Answer:
Incisors: 1. These teeth help in biting the food. 2. They are total 8 in number- four in each jaw. Canines: 1. These teeth help in tearing the food. 2. They are total 4 in number- 2 in each jaw.
The Scientific method can help resolve problems logically.
<u>Explanation:</u>
A logical and systematic approach that is used for the discovery of working of things in the world is known as Science. The scientific methods are used by the scientists for the purpose of evidences that can be measured and associated with the assumed hypothesis. The result of this method will be either supporting or contradicting to the theory.
The term "science" refers to the knowledge whose base is from some reproducible data. The result is obtained through the process of analysis and testing. It aims in finding solutions to any problem through logic and research.
