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
zimovet [89]
2 years ago
14

Evidence of an oxygen-rich atmosphere is the presence of

Biology
2 answers:
balandron [24]2 years ago
8 0
I Believe it to be Stromatolites
Oksi-84 [34.3K]2 years ago
4 0
Stromatolites is the answer
You might be interested in
What is the function of synaptic vesicles inside axon terminals? what is the function of synaptic vesicles inside axon terminals
Igoryamba

The correct answer is option (D) store and release neurotransmitters.

The function of synaptic vesicles inside the axon terminals is to store and release the neurotransmitters. A synapse refers to the junction between the two neurons which transmit the nerve impulses by the diffusion of a neurotransmitter. Synaptic vesicles ar important for the transmission or the conduction of the nerve impulses as they store and release the neurotransmitters.

These neurotransmitters are the chemicals that transmit an impulse between two neurons or a neuromuscular junction. A neurotransmitter is released by the synaptic vesicle of one neuron into a region between the two neurons called the synapatic cleft. From here, it reaches the neurtransmitter receptors present on the target neuron, thus conducting the impulse. Examples of neurotransmitters include the epinephrine, histamine, acetylcholine and others.

4 0
3 years ago
a researcher is studying the damage that predators cause to the wings of butterflies. what tools are best to use to determine th
ivann1987 [24]
A microscope to examine the butterfly. and a small pair of tweezers to pick up and put down the butterfly
8 0
4 years ago
HELPPPPPPPPPPPPPPPPPP
mel-nik [20]

Answer:

D, Isosceles and right

Explanation:

you already know it's right bc of the little 90 degrees box so the only two right answers could be A and D but its not A bc all the sides aren't the same length so its D. Hope this helped! :)

4 0
3 years ago
Which of these subjects is MOST LIKELY to be studied in ecology?
Margarita [4]

Answer:

d

Explanation:

D the interaction between populations of wolves and deer

6 0
3 years ago
Read 2 more answers
Which of the following pieces of evidence supports the claim that mitochondria trace their history back to free-living bacteria?
Ira Lisetskai [31]

The answer is (A) Mitochondria have their own DNA molecules, separate from the rest of the cell's DNA.

The endosymbiotic hypothesis concerns with the presence of two special organelles, mitochondria and chloroplast within the eukaryotic cell. These two organelles have their own set of DNA that is different from the nuclear DNA of the eukaryotic cell. It is believed that a primordial eukaryotic cell was in a symbiotic relationship with mitochondria-like bacterium. The primordial cell eventually engulfed the mitochondria-like bacterium for ATP production to power itself.

6 0
3 years ago
Other questions:
  • The plant on the left is the parent plant. the plant on the right is the parent's offspring. the offspring is genetically identi
    13·1 answer
  • Which of the following is a benefit of dams?
    5·2 answers
  • As race-day approaches, and in order to increase his glycogen stores and reduce the likelihood of fatigue, Anthony wants to incr
    6·1 answer
  • What is the function of cell reproduction/mitosis for living organisms? Name at least 2.
    12·2 answers
  • What effect would herbicide that runs off from a golf course have on an estuary?
    8·1 answer
  • List the hierarchy of organization in a snowy owl
    8·1 answer
  • How does global warming lead to succession events?
    9·1 answer
  • Animals, like other life-forms, evolved in the ocean. What made water a better nursery than land for the evolution of animals?​
    8·2 answers
  • Tracheostomy refers to a procedure to which part of the body
    10·1 answer
  • Describe how a gene can be amplified using PCR.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!