Question

1 2 points possible multiple choice
which of the following structures are part of a cells cytoskeleton and provide support to the cell shape?
ribosomes
microtubules
lysosomes
flagella
(response not displayed)
2 2 points possible multiple choice
a group of cells that are similar in structure and work together to perform a common function are referred to as a(n)
organ.
organism.
organ system.
tissue.
(response not displayed)

Explanation:

1. For question 1: Ribosomes make proteins, lysosomes break down materials, flagella enable cell movement. Microtubules are a core component of the cytoskeleton that maintains cell shape.
2. For question 2: An organ is made of tissues, an organism is a full living being, an organ system is a group of organs. Tissues are defined as groups of similar cells working together for a shared function.

Answer:

1. microtubules
2. tissue.