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
GarryVolchara [31]
2 years ago
8

What is a characteristic of all chordates at some point during their life cycle?

Biology
1 answer:
Mila [183]2 years ago
3 0

Answer:they possess notochord,dorsal tubular nerve cord , pharyngeal pouches

Explanation:chordates are animals which possess the notochord.examples are humans,birds,fishes etc

At a time in the life cycle,a chordates possesses a stiff,dorsal rod which is supporting in nature (the notochord).

They also possesses a tail that extends from behind the anus.

They possess a hollow nerve cord.

They possess gills slit.

These characteristics are present developing embryo and may disappear as the embryo matures.

In humans,the notochord is replaced by the spinal column of the vertebrate.

You might be interested in
gHow would an inhibitor of cAMP phosphodiesterase affect glucose mobilization in muscle? It would reduce cAMP levels and inhibit
Ksivusya [100]
<h2>cAMP and glucose mobilization</h2>

Explanation:

It would maintain high cAMP level and elevate glucose mobilization

  • Phosphodiesterase is an effector enzyme which degrades secondary messenger cAMP(cyclic adenosine monophosphate)
  • Here in this case an inhibitor is inhibiting the phosphodiesterase therefore cAMP level will increase
  • As cAMP level rise it activates a protein called protein kinase A which phosphorylates phosphorylase kinase and activates it
  • Phosphorylase kinase becomes active that phosphorylates glycogen phosphorylase and makes it active,glycogen phosphorylase catalyse breakdown of glycogen(in liver and muscle cells)
  • In liver cells breakdown of glycogen occurs and glucose 1 phosphate gets converted into glucose and supplied to whole body through blood

7 0
2 years ago
Which statement best explains how a tornado might form
ELEN [110]
A tornado is a violently rotating column of air extending from the base of a thunderstorm to the ground, often made visible by a condensation funnel. The formation of tornadoes<span> is complicated. So the answer would be A

</span>
4 0
3 years ago
Read 2 more answers
How did the results of the ecological calculations come out?
dolphi86 [110]

Answer:

im new

Explanation:

just trying this app out

7 0
3 years ago
What is this please some one help .
andriy [413]

Answer:

75%

Explanation:

Dominant means more. 100% is all so like all black. 50 is half-half which is wrong because its supposed to be more. 25% is wrong because its "more" so it has to be 75%

Hope this helps :D Please mark brainliest if correct D:

3 0
3 years ago
Why is it wrong to say that bread is a compound?
tatiyna

Explanation:

Bread cannot be classified as a compound. Compounds are formed when two or more substances are bonded together chemically, however, mixtures are not chemically bonded.

Bread is a mixture of several compounds such as sugars, proteins, lipids and gases along with a culture of organisms or chemical leavEning agaent. Several of these components

Explanation:

Large chains of monomers form biological macromolecules which carry out many essential functions in the body these can include nucleic acids, carbohydrates, proteins and lipids. These are organic molecules, meaning they're ringed or long-chain Carbons bonded to the elements oxygen (O), hydrogen (H), nitrogen (N) and phosphorus (P).

  • Proteins are structural support molecules comprised of long chains of amino acids joined via peptide (CONH) bonds; these are 20 specific units that are arranged into several macromolecules. Amino acids are absorbed through digestion and are incorporated into the body’s cells to make up organs muscles signal molecules and an alternative energy source.                                                                 Basic makeup: C, H, O, N, S; polar C, O double bonds and N-H bonding
  • Carbohydrates function to supply energy and support molecules they consist of mainly sugars or starches in long chains and rings to form monosaccharide monomers. They include monosaccharides, disaccharides and polysaccharides which describes the type of bonding and the degree of complexity of the polymers.                Basic makeup: C, H, O -with many polar OH groups
  • Lipids function as energy storage and chemical messengers, these include fats, saturated and unsaturated fatty acids with double bonds and steroids and waxes. However, lipids are comprised of fatty acids and glycerol; they do not contain a fixed set of monomers, and unlike the other biological macromolecules, they are not polymers. The arrangement of hydrophobic heads and hydrophobic fatty acid tails can give these non-polar macromolecules hydrophilic and hydrophobic properties.                                                                     Basic makeup: C, H, O; non polar- a triple condensation reaction produces the molecules from a triple hydroxyl (OH) alcohol bonded to three long-chain carboxylic acids.

Learn more about Lipid macromolecules at brainly.com/question/5094081

Learn more about  proteins and carbohydrates at brainly.com/question/10744528

#LearnWithBrainly

4 0
3 years ago
Other questions:
  • Why does the sky changes color? Can you pleaseee explain me how it works? Thanks&lt;3
    11·2 answers
  • Fibers exiting the sympathetic chain ganglia, take one of three routes: the spinal nerve route, the sympathetic nerve route, and
    12·1 answer
  • Which part of a plant has the potential to produce a lateral shoot?
    6·2 answers
  • PLEASE HELP 50 POINTS BRAINLIST
    9·1 answer
  • Some organisms have different common names in different parts of the world, but all organisms are given only one scientific name
    12·2 answers
  • What would happen to<br> offspring if crossing over did<br> not occur?
    15·1 answer
  • Briefly explain y genetic variation is important to living organisms <br><br>plz help​
    11·1 answer
  • PLEASE HELP ME IM GIVING BRAINLIEST I NEED QUICK ANSWERS BUT CORRECT ONES
    12·1 answer
  • What is a waning moon?
    13·2 answers
  • Drag the tiles to the correct boxes to complete the pairs. what do the variables in the hardy-weinberg equation represent? p p2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!