input: OPTIONS:
- chest
- stomach
- back
- head Now, answer this question: Answer the following question given this paragraph: Figure 20.26 Arteries Supplying the Head and Neck The common carotid artery gives rise to the external and internal carotid arteries. The external carotid artery remains superficial and gives rise to many arteries of the head. The internal carotid artery first forms the carotid sinus and then reaches the brain via the carotid canal and carotid foramen, emerging into the cranium via the foramen lacerum. The vertebral artery branches from the subclavian artery and passes through the transverse foramen in the cervical vertebrae, entering the base of the skull at the vertebral foramen. The subclavian artery continues toward the arm as the axillary artery. Q: The common carotid artery gives rise to the external and internal carotid arteries. the external carotid artery remains superficial and gives rise to many arteries of this? A:
A:
output: head

Answer the following question given this paragraph: Arterioles An arteriole is a very small artery that leads to a capillary. Arterioles have the same three tunics as the larger vessels, but the thickness of each is greatly diminished. The critical endothelial lining of the tunica intima is intact. The tunica media is restricted to one or two smooth muscle cell layers in thickness. The tunica externa remains but is very thin (see Figure 20.4). With a lumen averaging 30 micrometers or less in diameter, arterioles are critical in slowing downor resistingblood flow and, thus, causing a substantial drop in blood pressure. Because of this, you may see them referred to as resistance vessels. The muscle fibers in arterioles are normally slightly contracted, causing arterioles to maintain a consistent muscle tonein this case referred to as vascular tonein a similar manner to the muscular tone of skeletal muscle. In reality, all blood vessels exhibit vascular tone due to the partial contraction of smooth muscle. The importance of the arterioles is that they will be the primary site of both resistance and regulation of blood pressure. The precise diameter of the lumen of an arteriole at any given moment is determined by neural and chemical controls, and vasoconstriction and vasodilation in the arterioles are the primary mechanisms for distribution of blood flow. Q: A very small artery that leads to a capillary is known as what? A:

OPTIONS:
- capillary junction
- vein
- arterium
- arteriole

Answer: arteriole

Problem: OPTIONS:
- taurine
- phenylalanine
- guarine
- cytosine
Q: Answer the following question given this paragraph: The only difference between each nucleotide is the identity of the base. There are only four possible bases that make up each DNA nucleotide: adenine (A), guanine (G), thymine (T), and cytosine (C). Q: There are only four possible bases that make up each dna nucleotide: adenine, guanine, thymine, and? A:
Answer: cytosine

Problem:OPTIONS:
- artificial light
- dehydration
- smoking
- sunlight

Answer the following question given this paragraph: Forms of radiation that cause cancer include ultraviolet (UV) radiation and radon ( Figure below ). UV radiation is part of sunlight. It is the leading cause of skin cancer. Radon is a natural radioactive gas that seeps into buildings from the ground. It can cause lung cancer. Q: What is the leading cause of skin cancer? A:
****
A: sunlight

Answer the following question given this paragraph: Q: What is the change frogs and butterflies go through? A:
OPTIONS:
- transformation
- hiatus
- parthenogenesis
- metamorphosis
metamorphosis

Answer the following question given this paragraph: Q: Every species has a characteristic number of what? A:
OPTIONS:
- ribosomes
- receptors
- DNA
- chromosomes

Answer:
chromosomes