Question

Question 1(Multiple Choice Worth 2 points)
(5.01 MC)A housing development is situated near a river that flows into a bay. Which of the following is an abiotic factor in the river that would directly affect the marine ecosystem in the bay?

The types of trees growing along the river bank
The types of sediment moving down river
The amount of houses facing the river
The amount of plant life in the river
Question 2(Multiple Choice Worth 2 points)
(5.01 LC)Which of the following is an example of a biotic factor?

The salinity level in a salt marsh
The temperature of water at the seafloor
The shrimp population in a bay
The amount of sunlight reaching a seagrass bed
Question 3(Multiple Choice Worth 2 points)
(5.01 LC)What is an abiotic factor?

An organism that is or was living
A nonliving thing
A type of living organism that cannot reproduce
A type of matter that originates from the Earth's core
Question 4(Multiple Choice Worth 2 points)
(5.01 MC)A population of jellyfish has shown a sharp decline. What types of factors should be investigated?

Abiotic factors in their habitat only
Abiotic factors in their habitat and surrounding habitats
Biotic factors such as possible predators only
Both abiotic and biotic factors in their ecosystem
Question 5(Multiple Choice Worth 2 points)
(5.01 MC)Which of the following abiotic factors affects the ocean by creating disturbances that move energy through the water?

Nutrients
Oxygen
Salinity
Waves

Answer 1

Here are the answers to your questions:

**Question 1:**
**Answer:** The types of sediment moving down river
- This is an abiotic factor that can affect the marine ecosystem in the bay, as sediment can influence water quality and the habitats in the bay.

**Question 2:**
**Answer:** The shrimp population in a bay
- This is an example of a biotic factor, as it refers to living organisms within the ecosystem.

**Question 3:**
**Answer:** A nonliving thing
- An abiotic factor is defined as a nonliving element that can affect the environment, such as water, minerals, and sunlight.

**Question 4:**
**Answer:** Both abiotic and biotic factors in their ecosystem
- Understanding the decline in jellyfish population requires consideration of both types of factors to get a comprehensive view of possible causes.

**Question 5:**
**Answer:** Waves
- Waves are an abiotic factor that creates disturbances in the ocean, moving energy through the water and affecting various aspects of marine life.