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New Zealand Flora & Fauna
Ecology & Biodiversity: New Zealand Flora & Fauna

New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away..

Biological Cell schematic diagram
Biological Cell Introduction

It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..

Wart-like leaf galls on grape leaves
Plant Cell Defense

Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..

Water Cycle
The Water Cycle

The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

Direct and indirect physiologic effects of growth hormone
Animal Growth Hormones

Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..

Angle Oak Tree
Seed Plants

Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..