because cell is the basic structural and functional unit of life.
Explanation:
there is no life which can exist without cell
Solution:
A frame of reference is also a system of lines and clocks that you can use to measure the position and motion of a set of objects and events in relation to each other.
It is a system of geometric axes in relation to which measurements of size, position, or motion can be made.
It might seem strange to use a coordinate system moving relative to the earth. But, for instance, the frame of reference moving along with a train might be far more convenient for describing things happening inside the train. It is particularly important when describing an object's displacement.
If the position of any one at a point O then he has a set of coordinate axes to measure the position of a body. x.y.z in units in meter. So he locates the point as x meters along x-axis , y meters long y-axis and z meters along z axis. along z axis.
These three axes are perpendicular to each other then are called orthogonal axes or frame of reference. The time of an event can be measured by a clock.
The frame is said to be attached to the observer…as his scale of measurement is his own.
By this statement that he found a body P at (x,y,z) he is locating the body in space and if the time was t then the location is in space-time.
Thus we get that changing frame of reference will affect the system of the Earth.
Answer: a.The study is funded by a group with a financial interest in the outcome.
Explanation:
Junk science is a term that is used to describe scientific research or data that is false and fraudulent and is usually presented in order for the people behind it to be able to push an agenda or assertion.
If a study is funded by a group with a financial interest in the outcome, the research could end up being junk science as the backs might persuade the researchers to manipulate the data in such a way that it would favor them.
For instance, a Big Tobacco funded research into lung cancer finding that smoking does not contribute as much as previously thought to lung cancer
The answer is B because:
Cell walls are made of cellulose and proteins (hence II).
Animal cells don't have cell walls (only cell membrane) but plant cells do so IV
They must be semipermeable since materials for example carbon dioxide and water for photosynthesis have to go into the cell <em>some</em> way.
