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
Which of the following statements describe a plants role in a water cycle?
4vir4ik [10]
Plants absorb the water from the soil ( through their roots) and then release it back into the atmosphere by transpiration (evaporation from the leaves)
7 0
3 years ago
Which structure of the respiratory system connects the pharynx to the trachea?
True [87]

Answer:

b.larynx

Explanation:

5 0
3 years ago
What is a binomial nomenclature?
Iteru [2.4K]

The answer would be D


3 0
3 years ago
Prior to the 1600s it was believed that all living things were either plants or animals. Which of these inventions led to the de
maksim [4K]
<span>The invention of the microscope led to the development of a much more detailed classification system. Prior to the microscope, we believed the only life was life that we could visually see with the naked eye. However, with the invention of the microscope we were able to see that more life is contained in a small droplet of water than there are people on earth. It was eye-opening!</span>
3 0
3 years ago
In order for you to enjoy the smell of a flower, molecules called _______ from the flower must land on your olfactory epithelium
Maslowich

In order for you to enjoy the smell of a flower, molecules called <u>Odorants </u>from the flower must land on your olfactory epithelium, which lines the inside of the nose.

  • When a person breathes in air containing odor molecules, the molecules attach to receptors in the nose and send signals to the brain.
  • Odorants interact with primary epithelium olfactory receptors. Olfactory receptors, a type of epithelial cell with cilia, are found in the olfactory epithelium. These receptors receive the sense of smell, which is then sent to the brain.
  • The sensory neuron connected to the receptor is activated when an odorant connects with a receptor that detects it.
  • Only olfactory stimulus directly communicates with the cerebral cortex; all other sensory information is sent through the thalamus.
  • Additionally, it has been suggested that the nasal mucus plays a role in the process of emulsifying hydrophobic odorant molecules, delivering them to receptor sites.

learn more about Odorants here: brainly.com/question/14477810

#SPJ4

3 0
2 years ago
Other questions:
  • true or false? DNA replication occurs simultaneously at many sites along the molecule speeding up the process of replication.
    12·1 answer
  • Which of the following is an INVERTEBRATE?<br> A) Butterfly<br> B) Wasp<br> C) Crab<br> D) Frog
    11·2 answers
  • What is the meaning of transpiration?
    10·2 answers
  • How are your coping mechanisms for feeling stressed<br> related to cellular homeostasis?
    12·1 answer
  • Which activity can occur without the use of energy?
    13·1 answer
  • Describe this and that
    10·2 answers
  • Under normal conditions, when cells are not in contact with other cells this will signalthem to divide. When cells are too close
    15·2 answers
  • Amino acids build<br><br> A. proteins<br><br> B. monomers<br><br> C. nucleic acids
    14·1 answer
  • Dense regular connective tissue can be found in the.....<br> Tendon or dermis of skin?
    9·1 answer
  • For what cellular function does the breathing rate help regulate?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!