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
Alexus [3.1K]
3 years ago
9

Pioneer species are species which colonize previously uncolonized land, usually leading to ecological succession. They are the f

irst organisms to start the chain of events leading to a livable biosphere or ecosystem. Why is a lichen most likely to be a pioneer species?
A The mutualistic relationship of species forming a lichen allows it to survive independently.

B The lichen is fast growing and provides a nutritious food source for many other species.

C The lichen does not require sunlight to survive.

D The lichen is a decomposer that digests rocks and forms soil.​
Biology
1 answer:
mixer [17]3 years ago
8 0

Answer: D

Explanation: Bc

You might be interested in
On a global basis, which of the following is the largest reservoir of carbon? atmosphere vegetation sediments fossil fuels
Amiraneli [1.4K]
Out of the following choices, fossil fuels is the largest reservoir of carbon in the world. A couple of other reservoirs of carbon are dissolved in the ocean and in plants. 
3 0
3 years ago
Read 2 more answers
Which of these is a flap that shuts off the passage to the trachea and lungs?
lara31 [8.8K]
Were going to need you to put the multiple choices up too.
5 0
3 years ago
Chloride ions, Cl-, follow actively transported Na+ ions from the nephrons into the blood. Would you not expect the Cl- concentr
DerKrebs [107]

Answer:

Bicarbonate ion, HCO3- (which has a similar charge to chloride ions) also follow sodium ions into the blood. Also, potassium ions, K+ are transported into the nephron so some chloride ions and bicarbonate ions remains in the nephron to balance the charge.

Explanation:

Sodium is the primary positively charged electrolyte in extracellular fluid. Most of the solute reabsorbed in the proximal tubule is in the form of sodium bicarbonate and sodium chloride. Water is also reabsorbed in order to balance osmotic pressure

When sodium ions are reabsorbed into the blood, few of the substances that are transported with Na+ on the membrane facing the lumen of the tubules include Cl- ions, Ca2+ ions, amino acids, and glucose. Sodium is actively exchanged for K+ using ATP on the basal membrane.

In the distal convoluted tubule, K+ and H+ ions are selectively secreted into the filtrate, while Na+, Cl-, and HCO3- ions are reabsorbed to maintain pH and electrolyte balance in the blood.

Some chloride ions remains in the nephron to balance the charge of the secreted K+ ions and also due to the bicarbonate ions that are removed.

5 0
3 years ago
Cyclophosphamide and thiotepa are examples of:
lutik1710 [3]

Answer:

<em><u>ALKYLATING AGENTS</u></em>

Explanation:

Examples of alkylating agents include chlorambucil, cyclophosphamide, thiotepa, and busulfan.

HOPE IT HELPS.

PLEASE MARK ME AS BRAINLIEST.

5 0
2 years ago
Agriculture uses large amounts of water for imigation
lubasha [3.4K]

Answer:F

Explanation: I just know

4 0
3 years ago
Other questions:
  • Dr. johnson's study on the effectiveness of a new medication for anxiety demonstrated positive results. before assuming the medi
    13·2 answers
  • Part c - protein targeting pathways the dna in a cell's nucleus encodes proteins that are eventually targeted to every membrane
    12·2 answers
  • What would happen if s-phase did not occur before mitosis?
    12·1 answer
  • This two-headed muscle bulges when the forearm is flexed. it is the most familiar muscle of the anterior humerus. it is the ____
    12·1 answer
  • Quick help plz ......The presence of starch in leaf is tested using​
    9·2 answers
  • Which of the following is not a similarity between green algae and plants
    11·1 answer
  • A student design an experiment to demonstrate an effect of the interaction between the atmosphere and soil which of these best d
    5·1 answer
  • Match the given terms with the immune defense mechanisms.
    8·2 answers
  • 4. From what structures do the spindles originate?
    7·1 answer
  • __________ is derived from the motion of waves and tides.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!