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
anyanavicka [17]
3 years ago
9

What happened around 500 million years ago?

Biology
2 answers:
mafiozo [28]3 years ago
4 0
I was told plankton made the earths atmosphere breathable but probs wrong
Romashka-Z-Leto [24]3 years ago
4 0
510 million years ago was the Cambrian Explosion occurred, when all animal phyla appeared in fossil record.
You might be interested in
Which compound is a hydrocarbon?<br>A. C6H12O6<br>B. H2O<br>C. CO2<br>D. C2H5​
sasho [114]

Answer:   A. C6H12O6

Explanation:

4 0
3 years ago
HELP PLZ!!!!!! WILL GIVE BRAINLIEST! ASAP!
LuckyWell [14K]

Answer:

C- Gly-Ala-Pro-Ile

Explanation:

For a protein to be formed, the DNA strand has to go through three stages namely; denaturation, transcription and trasnlation. The DNA strand is trasncribed to mRNA strand. Translation occurs in the ribosomes with the help of tRNA.

Protein formation involves trasnlation of codons that form different types of amino acid. The Guanine corresponds with the Cytosine, Adenine with Uracil in the mRNA sequence strand.

From the table below; GGU forms Gly amino type, GCU forms Ala amino type, CCU forms Pro amino type and AUU forms Ile amino type.

7 0
3 years ago
Read 2 more answers
What is a possible reason that ecosystem 2 has fewer species than ecosystem 1?
creativ13 [48]

Answer:

doesn't repopulate as fast

Explanation:

ecosystem 2 could have more trouble reproducing then ecosystem 1.

3 0
3 years ago
Why is cartilage a good tissue of choice for the respiratory structures of the larynx, trachea, and bronchi?
Brrunno [24]

Answer:

Cartilage is a type of connective tissue formed of two types of cells, chondrocytes and chondroblasts, and an abundant, highly specialized and vascular extracellular matrix. It is a good tissue of choice because it has the function of supporting soft tissue (tracheal rings, for example), lining the joint surfaces of bones, and promoting the formation and growth of long bones.

Hyaline cartilage is the most common cartilage in the human body. It has a cool translucent bluish-white color and is responsible for the formation of the temporary skeleton in fetal development until this skeleton is replaced by bone tissue. Found mainly supporting the nasal passages, the trachea, and the bronchi, at the ventral end of the ribs and covering the articular surfaces of the long bones.

6 0
3 years ago
Which sense organ picks up light waves?
timofeeve [1]
The eye.

Sight. Sight is the ability to sense light, and the eye is the organ that senses light.
4 0
3 years ago
Other questions:
  • Are males and females fundamentally the same except for sexual organs or are they essentially different in many important ways?
    15·1 answer
  • What organelle breaks down and recycle worn out cells?
    7·1 answer
  • What is the role of natural selection in evolution?
    5·1 answer
  • The hormone insulin, which is produced by the cells of the pancreas, is released into the surrounding extracellular fluid by an
    8·1 answer
  • Which solution would help local farms if the water level in a reservoir used for irrigation became low?
    11·2 answers
  • Hospital patients are often given intravenous fluids (IVs) to maintain proper levels of water and salts in the
    11·2 answers
  • What is the green pigment found in plants
    11·2 answers
  • What makes a river valley fertile
    8·1 answer
  • Modifications to chromatin can affect transcriptional activity by changing the accessibility of DNA to the transcription machine
    9·1 answer
  • Which factor is MOST likely to have contributed to the high fertility rate in Africa?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!