The molecular clock tracks down nucleotide sequences for DNA or amino acids that contain sequences of proteins. Scientists use this to deduce the time in history where life forms possibly have diverged. This technique is also known as a gene clock or an evolutionary clock.
I think the answer is D. Proteins.
Ligaments.
The anterior talofibular ligament (ATFL) is a ligament that prevents medial and anterior displacement of the talus.
The Calcaneofibular ligament prevents lateral displacement. connects the talus and calcaneus providing with stabilization in the ankle joint and subtalar joint.
This two ligaments are often associated with sprained ankles.
Answer: Selectively permeable means a membrane allows the passage of some molecules or ions and inhibits the passage of others. The capacity to filter molecular transport in this manner is called selective permeability.
Explanation:
Shortened: This means the membrane only allows some things to pass through while others can't.
Hope this helps! ^^