Q: Q: What rigid external structure protects shellfish and other animals and provides points of attachment for the muscles that move the appendages? A:

OPTIONS:
- claw
- cocoon
- membrane
- exoskeleton

A: exoskeleton

input: OPTIONS:
- receptors
- ballasts
- prokaryotes
- chromosomes Now, answer this question: Q: Independent assortment occurs when what go to opposite poles of the cell in anaphase i? A:
A:
output: chromosomes

Q: Dissolved fertilizer can ultimately lead to the creation of what in lakes or coastal oceans, which means a place where nothing can live? A:

OPTIONS:
- extinction zone
- deceased zone
- hydrothermal vent
- dead zone

Answer: dead zone

Problem: OPTIONS:
- fungi
- enfluenza
- microbes
- pathogen
Q: Q: What is the name for a parasite that causes disease? A:
Answer: pathogen

Problem:OPTIONS:
- transesterification
- esterisation
- decarboxylation
- esterification

Q: What do you call a condensation reaction in which an ester is formed from an alcohol and a carboxylic acid? A:
****
A: esterification

Problem:OPTIONS:
- ending
- middle
- concurrent
- beginning

Q: Reactant concentrations are highest at which part of a reaction? A:
****
A:
beginning