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
Digiron [165]
3 years ago
11

About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because _____. oxygen became available from cyanobacte

ria banded iron formations developed meteorite impacts increased the atmosphere got thicker from volcanic outgassing
Biology
1 answer:
Anna71 [15]3 years ago
3 0
Oxygen became available from cyanobacteria
You might be interested in
I need help please !!!
marissa [1.9K]

Answer:

890? thats what i think...

Explanation:

sorry if im wrong, but im happy to help anyway:)

8 0
3 years ago
An arthropod's exoskeleton performs all of the following functions except
Mars2501 [29]
A. production of gametes
3 0
3 years ago
Read 2 more answers
Signs and symptoms of sudden illness do not include:
lana [24]

Answer: The correct answer is c. Bruising or rigidness of the abdomen.

Certain sudden illness can be related to chronic diseases of heart and lung infection.

Some of the common symptoms of sudden illness include dizziness, drowsiness, and unconsciousness. Signals of stroke or brain attack or cerebrovascular attack, shock or heart attack can occur. There can be blurred vision, sweating, nausea or vomiting, seizures, and diarrhea.

There is no symptom of bruising or rigidness of the abdomen in case of sudden common illness mentioned here.

4 0
3 years ago
Read 2 more answers
Which is a product of the light reaction?
elena-s [515]

Answer: NADPH and ATP

Explanation:

The mechanism of photosynthesis can be divided into two phases, light reaction, and carbon fixation. During the light reaction, photosynthetic pigments absorb radiant energy and undergo a series of photochemical reactions and convert the trapped energy into chemical energy which is stored in the form of NADPH and ATP. These two compounds constitute the assimilatory power. Light reaction is light dependent and it takes place in the grana of the chloroplast.


7 0
3 years ago
How are consumers and producers similar?
stealth61 [152]
They both need nutrients to carry out life functions
4 0
3 years ago
Other questions:
  • What is the vegetative free living form of a protozoan cell?
    6·1 answer
  • Why are enzymes important?
    5·2 answers
  • Estudos apontam que o cerebro tem milhares de funçoes. qual a ciencial que estuda o cerebro?
    11·1 answer
  • Explain the importance of atp in muscle contraction and regulation
    7·1 answer
  • The abo blood groups in humans are expressed as the ia, ib, and i alleles. the ia allele encodes the a blood group antigen, ib e
    11·1 answer
  • What occurs when a drug binds to a receptor in the body?
    15·1 answer
  • Neurotransmitters Select one: a. stimulate presynaptic terminals. b. remain in the synaptic cleft for long periods of time. c. b
    12·1 answer
  • The damage caused by such a snakebite could best be slowed down by
    7·1 answer
  • Why might scientists care about fossils and dating fossils to begin with ?
    14·1 answer
  • Can you observe part of the carbon cycle ?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!