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nadezda [96]
3 years ago
3

A cell membrane is mostly made of phospholipids and ______

Biology
2 answers:
brilliants [131]3 years ago
6 0

Explanation:

a cell membrane is mostly made of phospholipids that have a hydrophilic heads and two hydrophobic tails

Lena [83]3 years ago
4 0

Answer:

Cell membranes are composed of proteins and lipids. Since they are made up of mostly lipids, only certain substances can move through. Phospholipids are the most abundant type of lipid found in the membrane. Phospholipids are made up of two layers, the outer and inner layers.

So, a cell membrane is mostly made of phospholipids and proteins.

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Match each muscle term with weather they are Smooth Muscle and or Cardiac Muscle
Hoochie [10]

Answer:Three types of muscle tissue exist in the body namely;

Skeletal muscles which moves bones and other structures of the body.example,the bicep muscle.

Cardiac muscles found in the heart that contract the heart to pump blood.

Smooth muscles found in hollow organs like stomach, intestines and blood vessels.

All the muscles terms used in the questions are all related to Skeletal muscles and not Cardiac or Smooth muscle.

Explanation:

A; The fixed end of a muscle is called the Origin of the muscle.

B; The mobile end of a muscle is know as muscle insertion.

C; A muscle that accomplishes a certain movement is called an agonist.example;flexion.

D; A muscle that opposes a muscle that accomplishes a certain movement is known as antagonist.

Antagonist relaxes relatively to stretch when faced with opposition.

E; Members of a group of muscles working together to produce a movement is known as synergists.example, muscles involved in the flexion of the elbow.

F; Muscles that hold one bone in place relative to the body are known as Fixators. example,muscles of the scapula holding it in place during contraction or movement.

G; One muscle of a group working together that plays the major role in accomplishing the movement is known as synergist.example, bicep brachii and bra- chialis in elbow flexion.

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3 years ago
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Which phenomena can cause waves to form in the ocean
jolli1 [7]
The answer is Ocean Current s..
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4 years ago
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Organisms are constantly interacting with their environment. Sometimes this interaction has a positive effect on the environment
VLD [36.1K]
B is the correct answer
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3 years ago
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I’LL MARK BRAINLIEST
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Every living thing is made up of cells. If cells did not exist, there would be no life.

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3 years ago
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1. The movements of energy and nutrients through living systems are different because (1 point)
mariarad [96]

1. Answer;

A. energy flows in one direction and nutrients recycle.

Explanation;

-The movements of energy and nutrients through living systems are different because the energy flows in one direction and nutrients recycle.

-Energy is transferred between organisms in one direction in a food chain, but that interconnected food chains make a food web.

-Most ecosystems get their energy from the Sun. Producers can use sunlight to make usable energy by converting it into chemical energy or food. Consumers get some of that energy when they eat producers, they pass some of the energy to other consumers when they are fed on.

2. Answer;

Nitrogen fixation.

Nitrogen fixation depends on bacteria.

Explanation;

Nitrogen fixation is the process by which nitrogen is taken from its stable gas form (N2) in air and then converted into other nitrogen compounds (such as ammonia, nitrate and nitrogen dioxide) useful for other chemical processes.

-The nitrogen fixing bacteria are microorganism capable of converting atmospheric nitrogen into forms usable by plants. They include the free-living bacteria, which includes cyanobacteria, azotobacter etc. and others such as mutualistic bacteria such as Rhizobium.

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