Possibly because preditors hiding in sand
Physical Structures - They have small gils to breathe under water.
Coloring - Dark and Light Brown Spots with Tan body
Habitat - cold streams, lakes, pond, under rocks, and logs.
Scientific Name - <span>Dicamptodon aterrimus</span>
Answer:
Covalent bonds appear inside every linear chain and connect bases, sugars, and phosphate groups.
Hydrogen bonds appear between two strands and involve the base from one strand with the base from another strand in the complementary pairing.
Explanation:
A covalent bond is a chemical bond formed by joining electrons of two non-metal atoms into one or more common pairs.
A hydrogen bond (X-bond) is a type of weak chemical bond based on electrostatic attraction between a hydrogen atom and a nucleophilic atom that contains free electron pairs.
What is the effect of taking the fruit from the birds...... on the environment
Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance. The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke.
Explanation:
