Answer:
recombination of genes during meiosis
Explanation:
The tendon of the long head of the biceps muscle
http://anatomyzone.com/anatomy-feed/intertubercular-sulcus/
Lithosphere is the correct answer
cause hydrosphere is water
and stratosphere and atmosphere are part of the air
Ammonoids are good as index fossils because of the following characteristics;
<span>1.
</span>Their abundance and vast distribution across most shallow
marine waters during the periods
<span>2.
</span>They have easily recognizable
features, such as shells and the highly crenulated and complex suture, that are well preserved in rocks
<span>3.
</span>Their rapid
evolution that can assist determine changes and variations in the then environment
