input: OPTIONS:
- respiration and dermis
- layers and dermis
- Blood and dermis
- epidermis and dermis Now, answer this question: Q: What two layers is the skin made of? A:
A:
output: epidermis and dermis

Q: Phagocytosis, pinocytosis, and receptor-mediated endocytosis are the three types of what? A:

OPTIONS:
- modulators
- mitosis
- nanoparticles
- endocytosis

Answer: endocytosis

Problem: OPTIONS:
- cardiovascular
- respiratory
- nervous
- digestive
Q: Q: The simplest example of what type of 'organ system' is the gastrovascular cavity found in organisms with only one opening for the process? A:
Answer: digestive

Problem:OPTIONS:
- morphology
- entomology
- gerontology
- paleontology

Q: What branch of biology uses fossils to study life's history? A:
****
A: paleontology

Q: Female monotremes lack a uterus and vagina. instead they have what? A:
OPTIONS:
- endometrium
- placenta
- urethra
- cloaca
cloaca

Q: Mammals generate heat primarily by maintaining a high rate of what? A:
OPTIONS:
- reproduction
- respiration
- movement
- metabolism

Answer:
metabolism