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
enot [183]
2 years ago
12

Which of these animal groups was NOT present by the end of the Cambrian? bryozoans arthropods chordates mollusks

Biology
1 answer:
katrin [286]2 years ago
5 0
Only phylum bryozoans were not present during Cambrian period. It is an extensive fossil that did not appear in Cambrian nor pre-cambrian rocks. Bryozoans are found in the early Ordovician period. It could have probably existed during the Cambrian period but were soft-bodied or not preserved.
You might be interested in
What kind of molecule is shown in the diagram below?
Leona [35]

Answer: Lipid for Apex

5 0
3 years ago
Read 2 more answers
What is the result of a mutation during meiosis?
galina1969 [7]

Answer:

A mutation is a change in the nucleotide sequence of the DNA in a cell. ... Mutations can occur before, during, and after mitosis and meiosis. If a mutation occurs in cells that will make gametes by meiosis or during meiosis itself, it can be passed on to offspring and contribute to the genetic variability of the population.

Explanation:

hope this help....

    。    •   ゚  。

 .   .      .  。    •   ゚  。

    。   。 . 。    •   ゚  。

 .   。  ඞ 。  . • 。    •   ゚  。

alexisatcher was not the imposter

  • .  。 . 。    •   ゚  。

 。      ゚  。    •   ゚  。

 .     . 。    •   ゚  。

    ,    .  .   . 。 。    •   ゚  。

4 0
3 years ago
If you're outside and a tornado is headed your way, which of the following is the safest action to take?
Tju [1.3M]
B should be your answer
3 0
3 years ago
Read 2 more answers
Xylem and phloem together make up
stira [4]
Xylem and Phloem make up Vascular Tissue. 

7 0
3 years ago
How does convection work and how does it move tectonic plates? *
nirvana33 [79]

Answer:

Convection is the process of warm fluids rising and cooler fluids sinking. Inside the Earth, convection is powered by heat mostly from the core. The slow circulation of rock in the mantle moves the tectonic plates at the surface.

Explanation:

8 0
2 years ago
Other questions:
  • Short answer for definition of histone ​
    13·2 answers
  • What is the function of the lysosome in eukaryotic cells?
    9·2 answers
  • Oil spills can cause substantial environmental damage. What are examples of the types of wildlife that are affected and the impa
    15·1 answer
  • Mario recently earned his Ph.D. in biochemistry and has been asked to join a lab at a prestigious university. After a month on t
    14·1 answer
  • Which microscopic is the most powerful and can map the atoms on the surface of an object
    9·1 answer
  • Systematists have used a wide variety of traits to reconstruct the phylogenies of particular groups of organisms. Which one of t
    10·1 answer
  • Why does sugar move to the roots through the phloem during the summer months?
    11·2 answers
  • 7. Explain why science cannot provide answers to all questions.
    11·1 answer
  • What observation supports the claim that earth rotates
    6·2 answers
  • Breathing involves the movement of diaphragm and Rib cage<br><br><br><br>true or false​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!