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
saveliy_v [14]
3 years ago
9

Skin is the main barrier between internal organs and the outside environment. The outer layer of skin is composed mostly of epit

helial cells. Which is a characteristic of epithelial cells that makes them ideal for providing this type of protection?
The cells are packed tightly together.

The cells are surrounded by a lot of extracellular matrix.

The cells are separated by synapses.

The cells are organized into a mesh structure.
Physics
2 answers:
zhannawk [14.2K]3 years ago
4 0

Answer- A: The cells are packed tightly together.

vagabundo [1.1K]3 years ago
3 0
The characteristic of epithelial cells that makes them ideal for providing this type of protection is that the cells are packed tightly together. 
Skin, the body's largest organ,is our first and best defense against external aggressors. The many layers work hard to protect us, however when its condition is compromised, its ability to work as an effective barrier is impaired. 
You might be interested in
Images formed by a convex mirror are always ​
gladu [14]

Answer:

Images formed by a convex mirror are always ​virtual

Explanation:

A virtual image is always created by a convex mirror, and it is always situated behind the mirror. The picture is vertical and situated at the focus point when the item is far away from the mirror. As the thing approaches the mirror, the image follows suit and increases until it reaches the same height as the object.

<u>OAmalOHopeO</u>

4 0
3 years ago
Water flows through a horizontal pipe. The diameter of the pipe at point b is larger than the diameter of the pipe at point a. W
Natalija [7]

The speed of the water is the greatest at point B

5 0
4 years ago
A woman living in a third-story apartment is moving out. Rather than carrying everything down the stairs, she decides to pack he
Flura [38]

Answer:

T = 480.2N

Explanation:

In order to find the required force, you take into account that the sum of forces must be equal to zero if the object has a constant speed.

The forces on the boxes are:

T-Mg=0      (1)

T: tension of the rope

M: mass of the boxes 0= 49kg

g: gravitational acceleration = 9.8m/s^2

The pulley is frictionless, then, you can assume that the tension of the rope T, is equal to the force that the woman makes.

By using the equation (1) you obtain:

T=Mg=(49kg)(9.8m/s^2)=480.2N

The woman needs to pull the rope at 480.2N

8 0
3 years ago
What is it called when a surface takes light in without reflecting it
andrew-mc [135]
Reflection from such a rough surface is called diffuse reflection and appears matte
7 0
3 years ago
Read 2 more answers
A solid, horizontal cylinder of mass 18.0 kg and radius 1.70.0 m rotates with an angular speed of 40 rad/s about a fixed vertica
Radda [10]

Answer:39.88 rad/s

Explanation:

Given

mass of cylinder m_1=18 kg

radius R=1.7 m

angular speed \omega =40rad/s

mass of m_2=0.8 kg dropped at r=0.3 m from center

let \omega _2 be the final angular velocity of cylinder

Conserving Angular momentum

L_1=L_2

\left ( \frac{m_1R^2}{2}\right )\omega =\left ( \frac{m_1R^2}{2}+m_2r^2\right )\omega _2

\left ( \frac{18\cdot 1.7^2}{2}\right )\cdot 40=\left ( \frac{18\cdot 1.7^2}{2}+0.8\cdot 0.3^2\right )\omega _2

26.01\times 40=26.082\times \omega _2

\omega _2=39.88 rad/s

3 0
3 years ago
Other questions:
  • Which of these assumptions is Ptolemy's model of planetary motion based on?
    13·2 answers
  • Perform an Internet search to learn about grounding wires, fuses, and circuit breakers. Specifically,
    11·1 answer
  • The charge of an electronic is A.-2 B.-1 C.0 D.+1
    7·1 answer
  • An explanation for planetary differentiation is_____________.
    12·1 answer
  • A 5.3 kg block initially at rest is pulled to the right along a frictionless, horizontal surface by a constant horizontal force
    7·2 answers
  • What 2 factors impact gravitational pull?
    5·1 answer
  • What is the centripetal force necessary to keep a 0.4 kg object rotating in a circular path
    7·1 answer
  • Consider a one-dimensional crystal (similar to a carbon nanowire) with length 10 um and lattice spacing 0.1 nm.
    5·1 answer
  • A hiker shouts toward a vertical cliff 685 m away. The echo is
    9·1 answer
  • Are forces present even when there is no movement?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!