Log in
Biology
5
answers
3
watching
203
views

Which abiotic factor is necessary for animals to survive in an aquatic ecosystem?

◯ A. Algal blooms

◯ B. Low salinity

◯ C. Dissolved  

◯ D. Dissolved  

◯ E. Light

Watch
5
answers
3
watching
203
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

Take the time to address each factor. Explain how an organism (or population) in your ecosystem might be affected by each of the following abiotic factors:

a. volume of space
b. light
c. temperature
d. water (H2O) availability
e. oxygen (O2) concentration
f. carbon dioxide (CO2) concentration
g. ammonia and fecal waste

1. Many elements in seawater are found in constant ratios throughout the ocean because

a. The input of dissolved substances from rivers is broadly constant throughout the ocean

b. Dissolved material in the ocean has been there for millions of years, with no input or removal

c. Those elements remain in the ocean longer than the mixing time

d. This is not true; no elements are generallyfound in constant ratios

2. Trace elements in seawater include

a. Chlorine and potassium

b. Sodium and aluminum

c. Iron and strontium

d. Sodium and chlorine

3. Salinity is often estimated by chlorinity because

a. Chlorine is the only major element of seawater

b. Chlorine is in constant ratio to sodium and other major elements

c. Chlorine can be separated from the rest of seawater simply by evaporation

d. Salinity is not estimated by chlorinity but by sodium concentration

Please explain your answer if you can. Thank You!

What is the difference between planktons and nektons?

A. planktons are algae and cyanobacteria, nektons are larger plants
B. planktons are autotrophic, nektons are heterotrophic
C. planktons are mostly microscopic, nektons are macroscopic

D. planktons are in both freshwater and seawater, nektons are only in freshwater

The distribution of life in aquatic ecosystems are determined by;

A. all these factors determine the distribution of life
B. quality and quantity of light available at different depths
C. temperature changes at different depths

D. oxygen availability at different depths of water

Which of these would you find in the benthic zone of a freshwater lake?

A. large fish
B. submerged flowering plants
C. bacteria

D. green algae

The littoral zone of the ocean is characterized by;

A. the constantly high salinity in water
B. the presence of kelp forests
C. the presence of large marine animals
D. the presence of higher plants

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in