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
vladimir1956 [14]
3 years ago
12

What is the purpose of the umbilical cord

Biology
1 answer:
telo118 [61]3 years ago
8 0
The umbilical cord carries oxygenated blood and nutrients and waste to the in and out of the placenta
You might be interested in
Which is a characteristic of pseudoscience?
lakkis [162]

Answer:

Resistance to change

Explanation:

Indicators/Characteristics of pseudoscience:

  • Use of vague, exaggerated, or untestable claims
  • Over-reliance on confirmation rather than refutation
  • <u>Lack of </u><u>openness </u><u>to testing by </u><u>other experts</u>
  • <u>Absence </u><u>of </u><u>progress</u>
  • Personalization of issues
  • Misleading language

6 0
3 years ago
Can someone give me 4 examples of physical weathering
valkas [14]
Yes, sure!

1) Moving Water - Water, when running for a long period of time, can actually start to weather rocks.

2) <span>Ice wedging - Yep, this can cause rocks to weather as well. Water, when being constantly frozen and unfrozen weathers the rock due to the fact that water is able to expand.
</span>
3) Plant Roots - Ah, these little nutrient grabbers can certainly weather rocks over periods of time.

4) Winds - Winds can certainly physically weather the rocks, and it's probably the most common way they do.


<span>P.S. If this answer helped you, please, make sure to say "Thanks" just below my answer. It will help me a lot</span>
4 0
3 years ago
A cell is a complex system. Like most systems, a cell contains a boundary that separates things that are inside the system from
bearhunter [10]

Answer;

Cell membrane


A cell membrane acts as a boundary that separates things that are inside the system from those that are outside the system.

Explanation;

It is a thin semipermeable structure that surrounds the cytoplasm of a cell.

The membrane functions to protect the integrity of the internal environment of the cell by allowing selective movements of materials in and out of the cell.

The membrane consists of a phospholipid bilayer with proteins embedded in it.

6 0
3 years ago
Read 2 more answers
COMÓ SE DIFRENCIAN LAS MEZCLAS?
vaieri [72.5K]

Answer:

sustancia formada por dos o más componentes unidos, pero no combinados químicamente. Las mezclas homogéneas no se pueden diferenciar a simple vista. Se conocen como soluciones que contienen un soluto y un solvente; por ejemplo, la sal mezclada con agua

Explanation:

7 0
3 years ago
In an eight–cell embryo of an organism, the cells of the upper tier are aligned directly over the cells of the lower tier. Which
Marina CMI [18]
<span>starfish
</span> All normal eggs from the mother have an X chromosome while usually half the sperm cells from the father have a Y (male) chromosome and the other half  have an X (female) chromosome and it is therefore  the father's sperm that dictates which gender the embryo will take.

If the egg is fertilized by a sperm with a Y chromosome then the embryo will be a genetic male due to XY chromosome combination.
<span>If the egg is fertilized by a sperm with an X chromosome then of course the embryo will be a genetic female due to XX chromosome combination.</span>
3 0
3 years ago
Other questions:
  • Which is an example of a physical change?
    7·2 answers
  • The water cycle is also referred to as the _______ cycle.
    6·1 answer
  • Prescription of which medication represents part of an aversive therapy approach to treatment of addiction?
    15·1 answer
  • The north and the south of each have long periods of complete sunlight in complete darkness why
    15·1 answer
  • Your life would be most immediately threatened if you suffered destruction of the ______.
    11·1 answer
  • Difference between aerobe and anaerobe?<br> Simple quick definitions real quick! Will upvote! &lt;3
    6·1 answer
  • What is the main cause of the damage to trees on Grandfather Mountain?
    12·2 answers
  • ​ Why do all cells in the body need oxygen?​​
    5·1 answer
  • What are some ethical and philosophical questions that surround the issue of
    13·1 answer
  • What's the function of the lungs​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!