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3 years ago

What is a active transport

Biology

2 answers:

I am Lyosha [343]3 years ago

6 0

The movement of Ions and molecules across a membrane.

Hope this helps, and please mark brainliest! :)

maria [59]3 years ago

3 0

The movement of Ions or molecules across a membrane from low concentration to high concentration. Which requires energy.

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The sternocleidomastoid muscle extends from the mastoid process of the temporal bone to the sternum and medial clavicle. When bo

grandymaker [24]

Answer:

A Origin

Explanation:

Sternocleidomastoid is the muscle found in the cervical and it’s the largest. It is responsible for the rotation and flexibility of the neck and is a very powerful and tissue-rich muscle.

The sternocleidomastoid muscle extends from the mastoid process of the temporal bone to the sternum and medial clavicle. When both sternocleidomastoid muscles contract, the head is flexed. The end of the muscle called ORIGIN connects to the sternum.

4 0

3 years ago

What is the main component of the thin filaments in muscle fibers and is responsible for muscle contraction?O actinO myosinactin

grin007 [14]

the answer is A. I took the test and got it right. The question is specifically asking about the THIN filaments, making it actin- and only actin.

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3 years ago

Read 2 more answers

Hair Coloring Experiment

leva [86]

The independent variable (hair colorin) causes a response in the dependent one (colorin effectiveness). The constant variable can not change (curly or straight), the control variable is kept constant (time and environmental conditions). The experimental group receives the treatment (40 students).

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INDEPENDENT VARIABLE

Refers to all the variables in an experiment that provoke a response in another variable. The independent variable is modified to analyze its effects on another variable. The researcher changes on purpose the independent variable to observe the response of the dependent variable.

In the exposed example, the independent variable is the red hair coloring

- Red Hair Paint

- L’Oreal

DEPENDENT VARIABLE

Refers to the variable, which response depends on any change in the independent variable. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable.

In the exposed example, the dependent variable is the coloring effectiveness, seen through how well the coloring takes and lasts.

CONSTANTS

This variable does not change during the whole experiment and under any circumstance. It can not change.

In the exposed example, the constant variable is the type of hair, curly or straight.

CONTROL

Controlled variables are kept constant in the control groups and the experimental groups. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.

In the exposed example, the controlled variables are the exposure time to the colorings and environmental conditions, such as temperature, humidity, etc.

EXPERIMENTAL GROUP

The experimental group receives the treatment. The researcher apply different treatments to the experimental groups to observe how they affect the dependent variable. There can be several experimental groups.

In the exposed example, the general experimental group is the 40 students' hairs. Because coloring does not have the same effect on different hair colors, the experimental group includes,

- 10 blonds,

- 10 brunettes,

- 10 with black hair

- 10 with red hair

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Related link: brainly.com/question/24653783

5 0

3 years ago

Importances of magnesium in our body

Maurinko [17]

Regulating muscle and nerve function, blood sugar levels, and blood pressure an making protein, bone, and DNA.

5 0

3 years ago

can someone please explain to me how to do this along with an example? will be giving brainliest if you help :)

Rainbow [258]

Answer:

Whether matter exists as a solid, liquid or gas is determined by the arrangement of its particles and the strength of attraction between the particles. The three states can be easily distinguished because of their physical properties.

A physical property is a characteristic of matter which can be observed without any chemical change to the matter (shape, volume, colour, smell etc.). A chemical change is one in which new substance are formed.

Explanation:

Solids have a fixed volume and shape. They also vibrate in a fixed position. Ice

Liquids have do not have a fixed shape but a definite volume. They take the shape of their container. They are able to move past each other by allowing the liquid to flow. Water

Gases do not have a fixed shape or volume. Particles take up the space of the container they are in. Particles move freely and rapidly. Water vapour

*my gas picture isn't sending sorry

3 0

3 years ago