Answer:
Explanation:
Compact bone aka cortical bone is a dense, solid and rigid in which bony matrix with ground org. Substances and salts densely filled and leave tiny spaces known as lacunae. These spaces contain osteocytes also called as bone cells. Inside of these osteons there is a central canal which supplies blood vessels and nerves within bone. These vessels provide blood to the spongy bone and living cells housed within compact bones.
Structure of Compact bone: Basic unit of Compact bone is called osteon also known as haversian system. Each osteon consist of four parts.
1. Haversian canal which consists blood vessels and nerves acts as a site of hematopoiesis which is one of the functions of Compact bone.
2.lamellae are concentric rings of strong matrix consisting Calcium and phosphorus. this gives the bone its strength and hardness to bear body weight.
3.Lacunae contains osteocytes.
4.Canaliculi links osteocytes and provide route for nutrients to reach osteocytes.
the the second least force as it go it lose more and more force until it falls when it force the ball to drop the minute it hits the floor it has the least force
Answer:
D. Uncontrolled Cell Division
Explanation:
Fun Fact: Cancer can make mini cancer that can stack on top of itself.
Hydrogen bonds exists between the DNA strand and its complementary strand such that; there are two hydrogen bonds between every A and T, and three between every C and G.
Therefore; in this case there will be (2 ×3 ) +(3×3) = 15 hydrogen bonds for the above strand. this is because Adenine binds to Thyamine with two bonds (3 pairs) and Guanine binds to Cytosine with three bonds (3 pairs).
The event last in 15,600 seconds.
Answer: Option B
<u>Explanation:</u>
We know that there is 60 seconds in one minute i.e., 1 minute = 60 seconds
There is 60 minutes in one hour. i.e., 60 minutes = 1 hour.
Given : An event lasts 4 hours and 20 minutes
4 hours contains 240 minutes,

When the above expressed in seconds,
------>eq. 1
When 20 minutes expressed in seconds,
------->eq. 2
Adding both eq. 1 and 2, we get
4 hours and 20 minutes = 14400 + 1200 = 15600 seconds