Out of all the activities that lead to energy expenditure in the human body, the one that varies most from one individual to another is the basal metabolism energy or basal metabolic rate.
The BMR is the energy expended in order to maintain bodily functions such as respiration, circulation, homeostasis, hormone secretion and growth. The basal metabolic rate of a person is highly dependent on the person's lean body mass.
Both process involve changes in energy and matter
Answer:
The seed which is buried deep in the soil won't germinate
because
- it won't get sufficient oxygen / air
- it won't get sufficient sunlight
- and etc...
<span>1. A neighbor is walking her dog to the park during her lunch break on a beautiful sunny day. explain how her skin is working to protect her from ultraviolet radiation due to intense sun exposure. be sure to discuss the specific structures and substances involved in this protection.
Ultraviolet light is dangerous as it could damage the skin. The skin will react by producing a dark granule called melanin which will absorb the light. Melanin is produced by the melanocyte in the epidermis. This will make the skin looks darker, especially people that frequently exposed to light.
2. mike is beginning his summer football camp today. the temperature high today is 85 degrees with moderate humidity. discuss two ways the skin's structures and functions are working to provide homeostasis and temperature regulation in this football player.
The sweat glands will produce sweat and sent it to the epidermis. This will make the epidermis wet. If the humidity is low, the water in epidermis will be evaporated and taking heat from the skin.
When the temperature is too high, the blood vessel in dermis part of the skin will dilate to make the body lose heat more.
3. this weekend you are going camping with your closest friends and family. thankfully, the layers of your skin will help protect you during this adventure. discuss at least two ways each layer, the epidermis and dermis, may protect you on this excursion.
When camping, you might need to interact with the wild plant directly. The epidermis is made of keratinized squamous cell that could protect the skin from any physical damage like a sharp branch. It also protects from bacteria and other microorganisms.
Wilderness has a fluctuating temperature. The dermis has a fat that will help insulating heat when faced with a cold environment. It also has sweat glands to reduce body heat in the hot environment.</span>
From about 450 to 300 million years ago, bryophytes dominated the earth's vegetation, and then about 300 million years ago, gymnosperms began to become more prominent.
<h3>Evolution of plants</h3>
About 450 to 300 million years ago, most of the plants as we currently have them are yet to evolve according to evolutionists.
Instead, seedless vascular plants such as bryophytes were around. Many years after, these seedless plants evolved into vascular plants with seeds that are not enclosed in fruits.
Vascular plants with seeds but without fruits are known as gymnosperms. Plants whose seeds are enclosed in fruits, angiosperms, evolved thereafter.
More on plant evolution can be found here: brainly.com/question/13492988
#SPJ11
