Question

cells, tissues, organs, and systems collaborate in a multicellular organism. * 1 point
which choice best demonstrates this?

a bird building a nest using materials gathered from its environment
a person running a marathon, using their muscular system for movement
a fish swimming in water, using its fins for propulsion
a tree absorbing nutrients from the soil through its root system

• 1 point

what would likely happen if there were a communication breakdown
between cells within a tissue?

the related organ might not work properly.
nearby cells could try to make up for the lost function.
cells might start stress responses, causing tissue problems.
cell behavior could become uncontrolled, affecting growth.

Explanation:

For the first question:

• A person running a marathon using their muscular system involves multiple levels of organization. Muscles are made of tissues, which are made of cells. The muscular system (a system) works with other systems (like the nervous system for coordination) in the body (a multicellular organism) to enable movement.
• A bird building a nest is more about an organism interacting with its environment, not internal cell - tissue - organ - system collaboration.
• A fish using its fins (an organ) for propulsion is a simpler organ - level function compared to the complex interaction in a marathon runner.
• A tree absorbing nutrients through its root system (a system) is a plant - level function, but plants have a different organizational complexity compared to the human example in terms of the dynamic, coordinated effort during a marathon.

For the second question:

• Cells in a tissue communicate to perform their functions. If there is a communication breakdown, the tissue may not function properly. Since organs are made of tissues, the related organ might not work properly.
• While nearby cells might have some compensatory mechanisms in some cases, it is not as likely as the organ malfunctioning. Stress responses (in the third option) are more of a secondary effect after the tissue - level malfunction. Uncontrolled cell behavior (in the fourth option) is more related to problems like cancer (which is a more complex issue than a simple communication breakdown in a tissue).

Answer:

First question: B. a person running a marathon, using their muscular system for movement
Second question: A. The related organ might not work properly