1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IrinaK [193]
3 years ago
8

Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth?

Biology
2 answers:
LekaFEV [45]3 years ago
5 0
Carbon dioxide is correct
Verdich [7]3 years ago
5 0

Answer:

dissolved carbon dioxide

Explanation:

You might be interested in
Biological diversity is a term used to describe?
ale4655 [162]
D, different species in the world
7 0
3 years ago
The term aerotolerant anaerobe refers to an organism that:
quester [9]

Answer:

does not use oxygen but tolerates it.

Explanation:

The term aerotolerant anaerobe refers to an organism that. does not use oxygen but tolerates it.

6 0
2 years ago
What are the charecteristics of epihtelial tissue
ikadub [295]

Answer:

- covers and lines body surfaces

- minimal intercellular substance

- cells are densley packed together

- cells rest on basement membrane

- simple (single line of cells) and stratified (multiple layers)

- squamous (oval like shape), cuboidal (cube shape), columnar (long rectangle shape)

- vascular (tissue doesn't have its own blood supply)

Explanation:

Hope this helps!

5 0
3 years ago
Which word is correctly used in blank #2?
Alex
The answer is option c
6 0
3 years ago
Angraecoid orchids provide nectar to the African moths. the moths in turn help in pollinating the plant. what type of evolution
love history [14]
Answer would be coevolution
7 0
3 years ago
Read 2 more answers
Other questions:
  • What chronic disease is related to a lack of physical exercise?
    9·2 answers
  • Does the example ( picture ) describe science or pseudoscience?
    7·1 answer
  • Which structure is an adaptation that helps birds break down food? A. kidney B. gizzard C. anus D. liver
    12·2 answers
  • The average human gene contains about 10% __________ and 90% ____________ sequences
    14·1 answer
  • By which process do plants obtain carbon from the atmosphere
    6·2 answers
  • The effects of point mutations on polypeptides Point mutations are those that alter a single base pair or base location, and inc
    10·1 answer
  • 1. You are given a 1 gram soil sample of unknown bacterial load. After doing 10-fold serial dilutions of the soil in sterile wat
    7·1 answer
  • ¡Necesito ayuda! I need Help!
    10·2 answers
  • Which of the following would you expect to see in a positive feedback system?
    14·1 answer
  • Facilitated diffusion is a type of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!