Arthropods: Some species of crab use a respiratory organ called a branchiostegal lung. Its gill-like structure increases the surface area for gas exchange which is more suited to taking oxygen from the...
Learning objective:
By the end of this chapter, you will be able to-
Define Seed, Parts of Seed, types of the seed
Factor required for the seed to grow into new plant or sapling
Define Germination...
Simple present tense formula- Subject + verb .
Third-person refers to a third party individual. It uses the subject pronouns “he,” “she,” “it,” “they.”...
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). In this system, the process of...