Biology

The bald eagle (Haliaeetus leucocephalus), our nation’s symbolism of freedom, is the second largest bird in North America. While the species can be found throughout North America, two subspecies can be found living in more distinct areas. H. l. alascanus is larger and lives in more northern climates while the...

Animal testing for medical research is considered one of the most controversial issues that undermine the sustainable and ethical development of the science. There is a lot of evidence that proves that the procedure of animal testing cannot be substituted. Although many people consider it violent and inhumane, animal testing...

Sharing the same natural environment with many animal species we tend to automatically assume that they perceive this environment in the same way we do, see the same landscapes and objects and hear the same familiar sounds we associate with mundane places. However, such a belief proves to be erroneous...

Talk about the structure of the mitochondrial DNA compared to Nucleus DNA. Mitochondrial DNA is double-stranded and circular in structure while nuclear DNA is also double stranded but linear in nature. Nuclear DNA is enclosed by a nuclear membrane but mitochondrial DNA is not. Each mitochondrial organelle contains dozens of...

1. I have grown sunflowers on and off for the past several years. They always seem to move or grow from east to west each day. It’s seems as if they follow the path of the sun as it goes through the sky throughout the day. What I would like...