Answer:
Walking
Explanation:
A muscle cell usually contracts or expands simultaneously when one is working or doing some activities like running, exercises, house chores e.t.c
Muscles are flexible fibers that are very essential appendages for locomotion in human beings.
For muscle cells to contract, they are pulled together thereby causing tension in the muscle. When they are relaxed, they move away from one another.
Process. Permineralization is a type of fossilization involving deposits of minerals within the cells of organisms. Water from the ground, lakes, or oceans seeps into the pores of organic tissue and forms a crystal cast with deposited minerals. Crystals begin to form in the porous cell walls.
B. Roots take up nutrients and water from the ground like the mouth takes in food and drink.
Hope this helps!!
The correct option is "D", "<span>The density of seawater".
As you are measuring the</span><span> amount of mass in a volume of water and if we look at the definition of density, it is the mass per unit volume.
D = m/v
where m is the mass of an object and v is the volume.
Thus, d is the correct option.</span>
The pituitary gland secretes the luteinizng hormone (LH).
LH reaches it's peak concentration on the 13th day of the menstrual cycle.
On the 14th day, the egg is released from the ovary and, if not fertilized, which is what typically happens, the egg is released from the body, using the reproductive tract, during the menstrual bleeding process.
