Answer:
The platypus serves as a 'bridge' animal between nonmammals like birds and reptiles, which maintain their testicles in their body cavity, and placental and marsupial mammals, which hold their testes in an external scrotum."
The answer is B, fossil fules
A substance that causes pigment particles to adhere (stick) to one another and remain attached to the surface of a painting is called a: binder.
<h3>What is painting?</h3>
Painting can be defined as a process that involves coating the surface of an object or body, especially through the application of a paint.
In painting, color is most notably and primarily provided by pigment.
<h3>What is a binder?</h3>
A binder can be defined as a substance that causes pigment particles to adhere (stick) to one another and remain attached to the surface of a painting.
In conclusion, a binder is a substance that makes it possible for pigment particles to stick completely together to one another and remain attached to the surface of a painting.
Read more on painting here: brainly.com/question/17996239
