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3 years ago

The sternocleidomastoid muscles help to flex the neck. What are their antagonists

Biology

1 answer:

White raven [17]3 years ago

5 0

Answer:

Trapezius.

Explanation:

Sternocleidomastoid muscles may be defined as one of the largest superficial cervical muscle. The main function of this muscle is the neck flexion and the head rotation.

Trapezius muscle is the large muscle that extend from the occipital bone. The main function of the trapezius muscle is the scapula movement and support of the arm. Trapezium muscle resist the neck flexion and works as the antagonist to the trapezius muscle.

Thus, the answer is trapezius.

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Hello please help me need aanswer

viva [34]

As per questions,

★ What to do before a volcanic eruption?

Ans • Pack up some belongings especially radio, torch, some extra batteries, if possible then some dry eatables.

• Run out of the house with limited supplies and go to higher altitude areas like in mountains.

• Take some essential pain reducer medicines.

★ What to do during a volcanic eruption?

Ans: • Listen for the emergency evacuation orders as per given by officials.

• Protect yourself from falling ash.

• Use goggles to protect your eyes.

6 0

3 years ago

The graph shows atmospheric carbon dioxide levels over time.

klio [65]

Answer:

a and d

Explanation:

6 0

3 years ago

In flowering plants, plasmodesmata are narrow channels through cell walls that connect the cytoplasms of adjacent cells. An expl

Naddika [18.5K]

Answer:

Option-D

Explanation:

Plasmodesmata are the plasma membrane lined pores present in the cells of the plants. Inside these pores runs a closed tubelike structure which is an extension of the endoplasmic reticulum.

The plasmodesmata allows cell to cell communication which involves symplast mode of transport that is through its cytoplasm.

The small water soluble molecules like amino acid and sugars can easily pass through these plasmodesmata via diffusion. The large molecules can be transported through these plamodesmata through selective diffusion.

Thus, Option-D is the correct answer.

7 0

3 years ago

Was the membrane at a stable equilibrium before you pushed it? How could you tell?

liq [111]

Answer:

Well, first let's define the difference between stable and unstable equilibrium.

Stable: After a little perturbation, the equilibrium state is retaken.

Unstable: After a little perturbation, the state changes to one more stable.

An example of this is:

Imagine a pencil, when the pencil lays down in the table, it is in stable equilibrium because you can touch it and it will return to the same initial state.

Now suppose that the pencil is standing up (we can think this as a more energetic state). The pencil is in equilibrium, it does not move and there is no force acting on it.

Now you can touch it (a small perturbation) and the pencil will likely fall down, to the stable state of equilibrium.

That is the difference between stable and unstable (There is also an image below, where you can see it in a more physical way, where the vertical axis represents energy and the horizontal represents a given variable or set of variables).

Then, how to know if the membrane was at a stable equilibrium before you pushed it?

Did it return to the initial state? then yes, it was a stable equilibrium

Did It change to a less energetic state? Then no, it was in an unstable equilibrium.

7 0

3 years ago

10 points

dalvyx [7]

Solids-holds its shape

Liquid-take the shape of whatever its in

Gases- don't take a shape up

5 0

4 years ago