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
larisa [96]
3 years ago
11

What where the conditions like on early earth

Biology
1 answer:
Ipatiy [6.2K]3 years ago
4 0

For decades, scientists believed that the atmosphere of early Earth was highly reduced, meaning that oxygen was greatly limited. Such oxygen-poor conditions would have resulted in an atmosphere filled with noxious methane, carbon monoxide, hydrogen sulfide, and ammonia

You might be interested in
Charlie is having trouble moving his arms and legs. Charlie’s doctor diagnoses him with amyotrophic lateral sclerosis (ALS). ALS
zhannawk [14.2K]

Answer:

The correct answer is E. Nervous

Explanation:

8 0
2 years ago
Read 2 more answers
Question 2 (1 point)
tatiyna

Answer: That is True

3 0
3 years ago
Legumes, a type of plant, require Rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photos
Archy [21]

Answer:

rhizobia is an important nitrogen fixing bacteria found in the soil to help grwo plants like legumes. rhizobia enter into a symbiotic relationship withe legumes

Explanation:

rhizobia and legumes coexist by entering into a symbiotic association.  rhizobia is a bacteria that fixes nitrogen molecules for the legumes and in return the legumes provide the bacteria with food and nutrition.

If rhizobia becomes extinct in the near future it would be difficult for plants like legumes to grow as they wouldn't get sufficient nitrogen and nitrogen is an important nutrition for the plant to grow and develop. Thus it can cause rapid depletion or death of plants that need rhizobia to fix nitrogen molecules for them.

5 0
3 years ago
Read 2 more answers
What is the human storage form of polysaccarchide?.
charle [14.2K]

Answer:

Glycogen

Explanation:

In humans polysacchride is stored in the form of glycogen and used as a source of energy.

5 0
2 years ago
1) A specialized function shared by the many cells lining the lungs and the lumen of the gut isA) decreased oxygen demand due to
gogolik [260]

Answer:

B) increased exchange surface provided by their membranes

Explanation:

Alveoli are tiny air sacs that are responsible for exchanging oxygen (O2) and carbon dioxide (CO2) in the lungs. Alveoli have elastic fibers in order to expand and recoil depending on the volume of air breathed in. The alveolar epithelial cells (pneumocytes) may adopt a shape that serves to increase the surface area of gas exchange. On the other hand, intestinal epithelial cells have microvilli, which are microscopic projections in the plasma membrane. Microvilli serve to increase the cell's surface area, thereby facilitating the absorption of nutrients and water.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following statements is true?
    12·2 answers
  • What kind of questions would you ask, if you are provided with the following materials: Sugar, stir stick, access to warm or col
    6·1 answer
  • A patient diagnosed with ocd paces up and down the corridor counting every tile. select the nurse's best action.
    15·1 answer
  • In Earth’s mantle, heat is transferred in large convection currents. within these currents,
    10·1 answer
  • How many chromosomes do you get from your parents?
    14·1 answer
  • What is the structural feature that accounts for conductivity in electrolytes?
    10·2 answers
  • In order to produce a current, there must be a change of the magnetic field. ture or f
    14·1 answer
  • Define procedure in your own words​
    6·1 answer
  • What term defines a gene made up of two different alleles
    6·2 answers
  • Read the comments about translation from the two students below.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!