Velocity is a measure of how fast something moves in a particular direction. In other words, a velocity is a speed with a direction. For instance, if an object moves east at 9 metres per second (9m/s), we would say that its velocity is 9 m/s to the east.
Gradient The formal definition of a concentration gradient is the process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles. The areas are typically separated by a membrane.
The human body is consist of cells. It means that cells are everywhere in our body. There are heart cells, lung cells, brain cells, etc. Even our finger nails are mainly cells. They become of all the important organs and parts in our body. Imagine your heart, lung, or brain is functioning not well or making you feel pain because something goes wrong with those related cells? Not even to think about it. The human body can’t live without the good functions of cells.
And to be more concise, proteins are the major part of cells. Where there is a cell, there is a protein or more. Learn more about proteins in human body, visit www.creativebiomart.net/research-area.htm for professional knowledge. It’s a protein supplier who could be reliable on proteins based on their large amount of lab data.
Wish this would help.
d. jointing
Explanation:
The surface area of rocks exposed to weathering is increased by jointing.
Jointing in rocks increases their surface area.
- Surface area is the outer part of something.
- Mechanical weathering or physical weathering is highly renowned agent for increasing the surface area of rocks.
- When rocks fracture they creates cracks called joints.
- Joints increases the amount of surface exposed.
- Chemical weathering goes faster in surfaces with increased surface area.
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When comparing the birth patterns of humans and non-human primate, Rosenberg and Trevathan discovered some very clear differences:
1. The human period of labour and child birth is exceptionally long and painful compared to other non-human primates.
E.g. a human labour can last anywhere from 10-20 hours while that of a chimpanzee lasts only 2 hours.
2. Humans have the ability to walk straight, the trade off however is that it is extremely difficult and painful to give birth to a big brained human baby.
