Answer:
The answer is 'D'- Their arm bones have the same structure, but not function. These are homologous structures.
Explanation:
Homologous structures are those which share a basic common structure but perform different function. The hand of a human performs functions like <em>writing, cutting, washing, chopping</em> etc. The wings of a bat are used for the purpose of <em>flying</em>.
Also, <em>a dolphin's flippers, a bird's wing, a cat's leg</em> are all <u>homologous structures</u>. The structures which are homologous have the following features:
- They share a <em>common origin</em>
- Their <em>anatomy</em> is similar
- They have a <em>similar pattern of development</em>.
Let's go back to "Darwin's" evolution theory. mice can be smarter than the average hawk, they are fast, have underground protection from cold,heat, rain,ECT..and they scavenge during p.m. hours, not all hawks are nocturnal, that's why owls are nocturnal. This cycle ensures enough food source for all predators. A hawk can consume at least 6 mice per day/night. rodents are natural prey for all preditors., even coyote. hope this helps, plus mice reproduce quickly compared to preditors.
hope this helps..
B, Rhizoids.
That's the only one that won't help you in a tough spot!
Answer:
Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
Enzymes are part of the chemical digestion process. Their function is to break down the macromolecules. Amylase is a digestive enzyme secreted in the mouth and pancreas and is responsible for breaking down of starch.
Explanation:
Enzymes acts as catalysts, increases the rate and activates the chemical reactions during digestion process.
These biochemical reactions break down the macromolecules present in the undigested food into smaller molecules in the form of glucose and produces energy molecules in the form of ATP molecules.
Amylase is the digestive enzyme secreted by the salivary glands in the mouth. It is also produced in the pancreas. Amylase is mainly involved in breaking down of complex starch molecules in the food into simpler monosaccharides.
