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
Vikentia [17]
3 years ago
10

Unidirectional flow in the heart is ensured because the heart contains ___________.

Biology
1 answer:
jekas [21]3 years ago
3 0
<span>Unidirectional flow in the heart is ensured because the heart contains valves that prevent backflow.

These valves keep the flow of the heart going in one direction (hence the name "unidirectional").</span>
You might be interested in
Why will the surface you chose cause a glow instead of a single beam of light reflecting?
Phantasy [73]

Description
DescriptionReflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light, sound and water waves
4 0
3 years ago
Which of these are found in both eukaryotes and prokaryotes (choose all that apply)
kaheart [24]

Answer:

The correct answers are option b. "replication bubbles" and d. "replication forks".

Explanation:

The nucleic acids replication systems share some similarities between eukaryotes and prokaryotes. For instance, both organism have replication bubbles. However, prokaryotes have a single replication bubble because its replication process starts from a single origin, while eukaryotes have several replication bubbles. Also, the replication forks are well conserved from prokaryotes to eukaryotes with only some differences among the enzymes present within the fork.

7 0
3 years ago
(a) Depending on the organism, the optimal pH for enolase to catalyze its reaction is between 6.5 and 8.0. Describe how a pH bel
stepan [7]

Answer:

An enzyme can be described as a biological molecule which catalyzes a reaction. Each organism works best at an optimum temperature and pH.

If the pH is too high or too low than the optimum pH, then the enzyme such as enolase will become denatured and it will not be able to catalyze the reaction.

A change in pH causes the enzyme the shape of an enzyme to get changed or it changes the specific charge properties of the substrate of that enzyme. As a result, the substrate is no longer able to fit into the active site of the enzyme. Hence, the enzyme is not able to catalyze the reaction.

8 0
3 years ago
Read 2 more answers
What is CRISPR used for?
Brrunno [24]
CRISPR is a technology that can be used to edit genes and, as such, will likely change the world.
8 0
3 years ago
While walking barefoot along the beach (remember, in pre-pandemic times?), you step on a shard of glass
ryzh [129]

Answer:

A pain receptor detects the shard a glass (the stimuli) and triggers an electrical impulse along the sensory neurone. The electrical impulse reaches a synapse and neurotransmitters diffuse across the gap, triggering an electrical impulse along a relay neurone in the spinal cord. The electrical impulse reaches a synapse and neurotransmitters diffuse across the gap, triggering an electrical impulse along a motor neurone to the leg muscles (the effector). This causes the muscles to contact and lift your foot

8 0
3 years ago
Other questions:
  • What capillaries have endothelial cells pierced by filtration pores that allow the rapid passage of small molecules?
    7·1 answer
  • Three things are necessary for humans to keep their balance while walking on two legs.
    15·2 answers
  • What are some activities that cells engage in that require energy? And from where do cells obtain the energy they need to make A
    8·1 answer
  • In pea plants, a single gene controls pea texture. Smooth (S) peas are dominant over wrinkled (s) peas. A plant with smooth peas
    5·1 answer
  • HELP HELP PLEASE!!!!​
    8·1 answer
  • True or false: When the newly formed virsuses break out of the cell, it detroys the cell
    12·1 answer
  • What effect will a virus in the lytic cycle have on an organism apex
    7·1 answer
  • Which of the following is a function of glycoproteins?
    9·1 answer
  • What can happen if the nerves in your spinal cord get damaged
    15·1 answer
  • please help me with my science homework! ill mark brainliest to whoever gives me a good answer first :D (look at the picture bel
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!