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
Rashid [163]
3 years ago
13

Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier known as th

e reaction's _____.
A) entropy
B) activation energy
C) equilibrium point
D) free-energy content
Biology
2 answers:
leonid [27]3 years ago
6 0

Answer:

Activation energy.

Explanation:

Chemical reaction may be defined as the reaction in which the substrate is converted into the product. The catalyst are required in some reaction to increase the rate of reaction.

Substrate is converted into the product by overcoming the activation energy. Activation energy may be defined as the minimum amount of energy required for the conversion of the reactant into the products. The substrate must over come thermodynamic factor of the activation energy to convert into the products.

Thus, the correct answer is option (B).

NeX [460]3 years ago
3 0
AaaaaaaaaaaaaaaaaaaaaaaaaAaaaaaaa
You might be interested in
Identify the names of animals that lived on Earth before dinosaurs.
RUDIKE [14]

Answer:

b) dinosaurs

Explanation:

Hope this helped.

3 0
3 years ago
Read 2 more answers
All vertebrate embryos have _____ at some point during embryonic development, indicating a common evolutionary ancestor
aivan3 [116]

All chordates chare four structures. One of the is the tail. All vertebrate embryos have _<u>a tail</u>__ at some point during embryonic development, indicating a common evolutionary ancestor.

<h3>What is the relationship between chordates?</h3>

The evolutionary relationship between species is reflected in the similarities or differences in the patterns of embryonic development.

All chordates belong to the Chordata phylum, and share four main characteristics,

  1. Notochord, which is a precursor of the dorsal spine.
  2. Nerv cord, dorsally located and parallel to the notochord.
  3. Pharyngeal clefts
  4. Tail

All chordates express these structures at some point in their lives, especially in the early stages of embryogenesis. Many of them can be lost with animal development and become vestigial structures.

The tail is a vestigial structure in many vertebrates.

Vestigial structures are those body parts, genetically determined, that have been retained during the evolution of the taxonomic group but have lost or reduced their original function.

Such vestigial structures were plenty functional in the ancestors of new species, but now are typically degenerate, stunted, or rudimentary, and tend to be much more variable than homologous non-vestigial parts

All vertebrates develop a tail at some point in their embryonic life, even humans. However, this structure lost its original function in several species, so after a period of embryogenesis, this tail disappears, and its forming vertebras get fussed with each other composing the coccyx.

In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, for instance, the coccyx has lost this function but is still an area of muscle insertion.

The correct option is Tail.

All vertebrate embryos have _<u>a </u><u>tail</u><u>_</u> at some point during embryonic development, indicating a common evolutionary ancestor.

You can learn more about chordates at

brainly.com/question/12406059

#SPJ1

3 0
2 years ago
Which of the following types of reproductive barriers separates a pair of insect species that could interbreed except that one m
Arte-miy333 [17]

Answer:

Answer is B, habitat isolation.

Explanation:

Habitat isolation can simply be explained as a situation whereby two insects or organisms of the same species, that have the ability to meet and reproduce could not, because they are living in different habitats.

These different habitats might even be in the same geographical location or area. That is, one insect might be living in or on the surface of the water, and the other living in the soil or the tree. Due to this effect, the insects are unlikely to meet and reproduce.

8 0
3 years ago
PLEASE I NEED HELP!!!!!!!!
Masteriza [31]

Answer:

An increase of 3,500 J

Explanation:

Given that,

Energy added by swimmer = 12000 J

Heat removed by the surrounding = 8500 J

We need to find the total change in energy. It can be calculated using the law of conservation of energy such as :

\Delta U=Q-W\\\\\Delta U=12000-8500\\\\\Delta U=3500\ J

As the change in energy is positive, it means that there is an increase of 3500 J.

5 0
3 years ago
How does DNA in cells determine an organism? ’s complex traits?
hodyreva [135]
DNA<span> contains codes for proteins, which are necessary for the growth and functioning of an </span>organism<span>. </span>DNA<span> separates into long single strands that make up each part of an</span>organism<span>. </span>DNA<span> produces the energy an </span>organism<span> needs in order to grow. </span>DNA<span> folds into the nucleus of each of the </span>cells<span> of an </span>organism<span>.</span>
5 0
3 years ago
Other questions:
  • Choose the list of words that properly fills in the blanks in this statement: A/an _____ is a segment of a/an _______ that may c
    14·1 answer
  • Under which of the following conditions will speciation not occur?
    6·1 answer
  • What enzyme is responsible for adding new nucleotides to the dna template strand?
    12·1 answer
  • Which is a goal of the Human Genome Project?
    10·2 answers
  • How long does it take a caterpillar to turn into a butterfly?
    12·1 answer
  • Question 3<br> Tissues working together to perform specialized functions are called -
    9·1 answer
  • Which layer of Earth has the most influence on Earth's magnetic field?
    14·1 answer
  • What is photosynthesis ​
    15·2 answers
  • In general, which trophic level has the MOST energy available to it? a Producer b Primary Consumer c Secondary Consumer d Tertia
    11·1 answer
  • a scientist finds an organism that has a single cell without a nucleus this organism was found in pond water in which kingdom do
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!