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
natali 33 [55]
3 years ago
9

There are ongoing arguments among taxonomists as to which phyla represent the closest relatives of phylum Annelida. Some propose

that these worms share a common ancestor with the arthropods (crabs, insects etc.). However, the majority continue to keep the annelids lumped together with the Lophotrochozoa. The reasons for this are many but probably the least disputed comes from:______.
a. the segmented body plan of the annelids.
b. molecular analysis.
c. metamerism.
d. schizocoelous origin of the coelom.
Biology
2 answers:
NikAS [45]3 years ago
8 0

Answer:

a. the segmented body plan of the annelids

Explanation:

  • lophotrochozoan is a taxonomy of animals that includes annelids, bryozoans, and brachiopods.
  • This taxonomy of creatures was defined in 1995 as the last ancestor of the taxa of worms, mollusks, and annelids. Their classical definition depends on the topology of the spiral tree of life.
  • Annelids have a segmented body part wherein the external morphological features are repeated in every body segment. It allows the animal to become bigger and makes their movement more fat and efficient.
Mrac [35]3 years ago
3 0

Answer:

B: Molecular Analysis

Explanation:

I clicked on the other mans answer and was quite dissapointed to see that it was incorrect, so im writting this to tell you its B.

You might be interested in
The process of Beta-oxidation and fatty acid synthesis are regulated in such a manner that neither process is active at the same
Neporo4naja [7]

Answer:

c) Acetyl COA carboxylase; citrate

Explanation:

Citrate serves as an allosteric activator for fatty acid synthesis and diverts the cellular metabolism from the consumption of metabolic fuel to the storage of fuel as fatty acids. When the concentrations of mitochondrial acetyl-CoA and ATP increase, citrate is transported out of mitochondria into the cytosol. In the cytosol, citrate serves as the precursor of cytosolic acetyl-CoA and an allosteric activator of acetyl-CoA carboxylase.

The enzyme Acetyl-CoA carboxylase has three functional regions. Its biotin carboxylase activates CO2 and its transcarboxylase transfers activated CO2 from biotin to acetyl-CoA to produce malonyl-CoA.

8 0
3 years ago
How should the population of rabbits, grass and hawks be distributed so all populations are sustainable??​
Nonamiya [84]

Answer: B )

Explanation: Hawks are on the top of the food chain in this question so it makes sense to only have few while having a good amount of bunnies to feed them. This all would need grass to bunnies alive; with process of elimination this was solved.

7 0
2 years ago
A species of snail has 24 chromosomes - 12 pairs - in each somatic cell. How many chromosomes are there in a snail egg cell? A s
Romashka-Z-Leto [24]
Hey there!

Here is your answer:

<u><em>The proper answer to this question is "12".</em></u>

Reason:

<u><em>It should be half a number of </em></u><span><u><em>chromosomes 12 from the mother 12 from the father.</em></u>

<em>The answer should be 12 </em></span><span><em>chromosomes.</em>

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit</span>
3 0
3 years ago
20. What would happen to a paramecium that is placed in a jar of syrup?
zubka84 [21]

Answer:

It will shrink.

Explanation:

When  a solution contains more solute than the surrounding environment  where ,it  is located,it is said to be hyper tonic.Such a solution is of higher concentration,and therefore contains little water.

Syrup is an example of an hype tonic solution.Corn syrup  as an example  contains more solute in it,

Paramecium is unicellular organisms which is aquatic in habitat,therefore compare to the syrup of high solute it is hypo tonic.

Thus when placed in syrup,Paramecium loses water by osmosis,since water from the Paramecium at lower concentration would move out through the paramecium membrane ,as semipermeable membrane,into the syrup,of higher concentration

The paramecium will eventually shrink,and die,due to dehydration.

5 0
3 years ago
Blue poppies native to China are grown at a plant-breeding center in California, where those with the thickest leaves survive an
Arte-miy333 [17]

Answer:

directional selection

Explanation:

Selection is of three types -

1. diversifying

2. stabilizing

3. directional

These selections occur in a given environment to either increase, decrease or maintain the genetic variance of the population.

A type of natural selection in which the phenotype of the species of a given population tends to shift away from the mean and towards one extreme phenotype is known as directional selection.

In the given situation, it is given that the extreme phenotype of having thickest leaves is being favored in drier climate and hence, this is an example of directional selection.

5 0
3 years ago
Other questions:
  • Why is air pressure greater higher up in the atmosphere
    6·1 answer
  • How muscle cells structure determines its function in a body
    10·1 answer
  • Skeletal muscles are?
    10·2 answers
  • 15. If a virus enters the lytic phase in a host's cell, it will cause the host cell to A. reject the virus. B. shrink because of
    9·1 answer
  • Please answer this quickly!
    12·2 answers
  • TIME REMAINING 01:39:44 Green plants need light in order to survive. Structures in the leaves absorb light, which in turn, helps
    8·2 answers
  • Can some one help me plss ill give extra if right and u have to explan
    8·1 answer
  • D. Explain the relationship between the pulse recorded in the finger and heart muscle contraction ______________________________
    8·1 answer
  • Which type symmetry applies to animals in the phylum Porifera?
    11·2 answers
  • What’s the difference between convergent boundaries and the subduction zone
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!