True.
Shivering is a bodily function in response to cold in warm blooded animals/human. When the core body temperature drops shivering reflex is triggered to maintain homeostasis. Skeletal muscles begin to shake in small movements creating warmth by expending energy.
The best answer is D. He extracted and observed DNA from white blood cells. He is a Swiss physician and a biologist who is known to be the first researcher to identify nucleic acid. He isolated various phosphate-rich chemicals , which he called nuclein or what we know now as nucleic acid, from white blood cells' nuclei which paved the way for him to discover and identify DNA.
Answer:
it is a disturbance because it drasticly changes the enviroment temeraraly disturbing the animals and forcing them to move
The system that controls hormones is the endocrine
Answer:
<u>Their roles in moving energy through the ecosystem.</u>
Explanation:
Before Lindeman's classification, Scientists focused on the characteristics and classification of Plants and Animals. Lindeman Shifted the focus of classification to Energy i.e. how the organisms depend on each other and their environment for their survival in the Ecosystem.