The plane that divides the body into left and right portions
is known as the sagittal plane also known as the median plane. Sagittal plane
bisects the body into two halves and the plane motion occurs around a coronal
axis. Movements in the sagittal plane are the flexion and the extension. The Flexion
movement involves the bending movement in which the relative angle between two
adjacent segments decreases. The Extension movement involves a straightening
movement in which the relative angle between the two adjacent segments
increases. In general, both flexion and extension movement occur in many joints
in the body, which include shoulder, wrist, vertebral, elbow, knee, foot, hand
and hip.
The sagittal plane has two subsections; they are the
Midsagittal and the Parasagittal. The midsagittal runs through the median plane
and divides along the line of symmetry while the parasagittal plane is parallel
to the mid-line and divides the body into two unequal halves.
Answer 1) : Change in direction.
Explanation : When an airplane starts to turn from south to west at constant speed gets accelerated due to change in direction. The change in direction of the airplane causes the airplane to accelerate in the direction of west while it was moving in south. Here the acceleration is being affected because of the change in direction of the object moving with a constant speed.
Answer 2) Change in direction and increasing speed.
Explanation : When a biker was riding at the speed of 5 m/s north and then changed the direction to west at an increased speed of 7 m/s this was due to increased speed and change in the direction of the bike.
There was two factors which contributed to change the acceleration in this case. It was because of change in speed of the bike and also because of change in direction. This kept the bike in acceleration by increasing the speed while changing the direction.
Answer 3) Increasing speed.
Explanation : While the shopping cart was observed to speed up on the runaway while it goes down a hill gets accelerated due to change in its speed.
In this case, when the shopping cart is been released from the upside runaway; as it goes down it gains more speed due to the slope of the runaway. This is because the acceleration is increasing because there is increase in the speed of the shopping cart.
Answer:
The main role of DNA in the cell is it's a Long term storage of information
Explanation:
The main role is to read the genetic code, cells make a copy of a stretch of DNA in the nucleic acid RNA
Answer:
(a) cell
Explanation:
"What do scientist call the basic unit of life?
The basic unit of life is the cell. In 1838, scientists Theodor Schwann and Matthias Schleiden came up with the original version of the cell theory, which concluded that the basic unit of living things is the cell."
