Answer:
D
Explanation:
If it is wrong im really sorry but i have a feeling its d
Answer:
Cell - Muscle cell, blood cells
Tissue - Muscle tissue, cardiac (heart) tissue
Organ - Heart, lungs, pancreas
Organ system - Respiratory system, circulatory system
The third choice is the answer
hopes it correct
Answer:
silk moth are animals whose cocoons are used to make silk.
Explanation:
silk is a fibre or we can say a luxurious and expensive fibre which is used in making silk clothes. They are highly soft and smooth!
Answer:
A)11,460 years
Explanation:half of a radioactive element represent the time take for half of it's components to dissociate or disintegrate.
For carbonn14 that undergo an emmision to form a stable carbon 14,it moves thus
14C(1 part) ______14C(0.5 parts)_____14C(0.25parts)
i.e it undergo two radioactive decay which means two half lives .
Since each half life is 5780 years ,the age will be 2×half lives= 2×5780=11,460 years
