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
Alexandra [31]
3 years ago
11

Why do adult urochordates (tunicates) lack notochords, even though larval urochordates have them? Larvae use notochords to _____

.
A) aid in swimming; adults are sessile and thus no longer propel themselves.
B) stiffen their bodies; in adults, the notochord is replaced by a column of bone.
C) induce tissue differentiation; in adults, tissue is already differentiated.
D) organize their nervous systems; adults' nervous systems are fully developed and do not change.
Biology
1 answer:
kirza4 [7]3 years ago
8 0

Answer: Option A

Explanation:

A tunicate is marine invertebrate animal  which is a part of chordates. They have notochords and dorsal nerve chord. The subphylum of the organism is called as Urochordata.

The adult urochordates lack notochord but the larval stage of the urochordates have notochord. This is because it helps in swimming of the organism which is required only at the larval stage.

The adult stage of the tunicates is sessile and they do not swim so they do not require notochord.

You might be interested in
Why does carbon dioxide go to ur lungs? is this safe?
slamgirl [31]
You breathe in oxygen, you exhale carbon dioxide.
It is safe but you shouldn't breathe in carbon dioxide all the time.
4 0
3 years ago
Read 2 more answers
The living material that lines the inside of one's cheek is —
IgorC [24]

The living material that lines the inside of one's cheek is mucous membrane

3 0
3 years ago
A scientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. Which biological component
Sophie [7]
Researching is composed of various explorations in utilizing the scientific method in the process. It also, answers any scientific inquiry with the use of scientific method. Research enables and promotes the scientific community at a larger scale. Contributing and collaborating knowledge all-over the people and persons in science. Researches play a big role in everyone’s academic identity because 
<span>1.       It actively makes the individual scientific in approach to things of curiosity and makes him/her use the knowledge to study and produce results which</span> <span>
2.       The scientific society will benefit by this particular study and can work together to better explore and discover.   </span><span> </span>
3 0
3 years ago
Read 2 more answers
Which viral genome is likely to require an RNA-dependent RNA polymerase for transciption upon viral entry?
Inga [223]

Answer:

(-) sense single-stranded RNA

Explanation:

Negative sense refers to viruses that use the negative sense single stranded RNA as their genetic material.

It is essential for the negative viral strand is complimentary to the mRNA so it is converted to a positive RNA by RNA polymerase.  

Negative sense single stranded RNA virus require an RNA dependent RNA polymerase for transcription.  This is because it essential in encoding proteins by catalyzing the complimentary RNA strand to the given RNA tempelate.  

6 0
3 years ago
How are the algae cells different from the other cells?
MrRissso [65]

Answer:

Although both algae and plants are photosynthetic in nature and are classified as eukaryotes (have highly differentiated cells that contain specialized structures like the nucleus), the two still differ in the following aspects:  Algae can either be unicellular and multi- cellular while plants are multi-cellular

8 0
3 years ago
Other questions:
  • Which of the following statements is true regarding scientific hypotheses? A testable hypothesis is valuable, even if evidence s
    12·2 answers
  • WILL MARK AS BRAINLIEST
    6·1 answer
  • If the allele is evolutionary successful the frequency of the allele is
    14·1 answer
  • What causes the differences in physical characteristics like hair color among people?
    10·2 answers
  • What are two chemical properties of sodium
    11·1 answer
  • Which of the following happens when a cell divides? Select one: a. The cell's volume increases. b. It becomes more difficult for
    10·1 answer
  • Why were the fossil remains of Mesosaurus important to Alfred Wegener?
    11·1 answer
  • The overall process of photosynthesis can be written as the equation:
    9·2 answers
  • Which of the following isnt true about genes? A.
    8·2 answers
  • Similarities between photosynthesis and cellular respiration
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!