Answer:
the DNA, chromosome, and gene can all be similar in some way
Answer:
In a free-body diagram, a box is used to represent the object, and arrows (the forces) are drawn outward from its sides.
Explanation:
Once you put all of this together, it's pretty simple to figure out which forces are acting on any given object.
How would u approach the first one, #54
Answer:
Replacing skin defects has witnessed several developments over the centuries. It started with the introduction of skin grafting by Reverdin in 1871. Since then, varieties of skin grafting techniques have been used successfully. Despite being clinically useful, skin grafts have many limitations including the availability of the donor site especially in circumstances of extensive skin loss, immune rejection in allogenic skin grafts, pain, scarring, slow healing and infection.1,2 For these reasons, scientist have worked hard to find skin substitutes to replace skin defects without the need for a "natural" skin graft. These materials which are used to cover skin defects are called "Skin substitutes". This article briefly discusses the common types of skin substitutes and their clinical uses.
