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
Law Incorporation [45]
3 years ago
12

What blood vessels contain valves?

Biology
2 answers:
yaroslaw [1]3 years ago
4 0

Veins contain valves that ensure blood flows in only one direction. Valves also help blood travel back to the heart against the force of gravity.




Hope this helps.....

Andre45 [30]3 years ago
3 0

veins and capilliaries contain valves.

You might be interested in
Which accurately describes meiosis ll?
KatRina [158]

Answer:

In metaphase ll, the chromosomes line up in the middle of the cell

Explanation:

8 0
3 years ago
Read 2 more answers
A neglected child is intensely disliked by classmates. <br> a. True <br> b. False
givi [52]
True - by a majority, at least. This would be because when a young child is growing up, they need a surplus of attention. when not provided it will cause the development of self and brain, and so understanding of others, to be hindered. With little compassion and bad habits comes dislike from peers.
7 0
3 years ago
How does an area's weather differ from the area's climate?
Shalnov [3]
Weather is the area's day-to-day conditions and climate is the area's average conditions. a natural phenomenon that maintains Earth's temperature range.
7 0
3 years ago
Read 2 more answers
which statement is false about base stacking when nucleic acids are in a double-stranded conformation?
Lilit [14]

The statement that is false about base stacking is; B. Stacking interactions are hydrophilic in nature.

<h3>What is the truth about Base Stacking?</h3>

Base stacking is defined as a common arrangement of nucleobases that are found in the three dimensional structure of nucleic acids. Bases (or base pairs) are planar, and these planes stack at contact distance , excluding water and maximizing Van der Waals interactions.

Looking at the given options, the only one that can be said to be false about the defined base stacking above as regards nucleic acids is option B.

The missing options are;

A. Stacking interactions occur when two or more bases are positioned with their rings parallel to each other.

B. Stacking interactions are hydrophilic in nature.

C. Stacking involves a combination of van der Waals and dipole-dipole interactions between bases.

D. Base stacking helps to minimize contact of the bases with water.

E. Base stacking interactions are important in stabilizing the three-dimensional structure of nucleic acids.

Read more about Base Stacking at; brainly.com/question/19670398

#SPJ11

6 0
2 years ago
Coral reefs only form in ocean waters between 30 N and 30 S. The reefs are confined to shallow water because?
Viktor [21]
Reef-building corals were confined to relatively shallow depths because many of these corals have microscopic algae called zooxanthellae living inside their soft tissues.
 These algae are often important for the corals’ nutrition and growth, but require sunlight for photosynthesis. There is no sunlight deep in the water. 
8 0
3 years ago
Other questions:
  • Which of the following will most likely result in anaerobic respiration? A. Running B. Walking C. Sitting D. Solving Algebra equ
    13·1 answer
  • What is the time period of grapolites
    12·1 answer
  • Which one of the following is a requirement for a good primer? Select one: a. Guanine and Cytosine should make up less than half
    12·1 answer
  • Bioaccumulation is the buildup of a persistent pesticide in __________ . biomagnification is the buildup of a persistent pestici
    7·1 answer
  • Which is the best definition of a phylogenetic tree?
    12·1 answer
  • Which of the following is a component of biodiversity?
    15·2 answers
  • What is the current theory about the formation of the solar system?
    15·1 answer
  • Which statement is a hypothesis that might be tested by observing a desert animal's
    10·1 answer
  • Please help me?? 10 points!
    8·2 answers
  • Erythrocytes live for a maximum of.......days whereas platelets live for ....... days
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!