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
Oxana [17]
3 years ago
10

Do sharks have bad vision​

Biology
1 answer:
pshichka [43]3 years ago
3 0

Answer:

yes

Explanation:

You might be interested in
Where are amphibians who eat livingplants most likely to live in a lake
goldfiish [28.3K]

Answer:

the littoral zone

Explanation:

5 0
3 years ago
Your teacher will grade your responses to questions 24 and 25 to ensure you receive proper credit for your answers. Identify the
maria [59]

Answer: Nervous system, skeletal system, muscular system. The nervous system control the muscles and the skeletal system helps to support those muscles.

Explanation:

The nervous system consists of a set of cells specialized in conducting electrical and chemical signals, called neurons, and glial cells that are supportive. <u>The nervous system picks up external stimuli from the environment or signals from the organism itself (internal stimuli), and this information is transmitted by nerves to the brain, where everything is processed and a signal is emitted that causes the contraction of certain muscles. </u>

The nervous system is divided into central and peripheral systems. The central nervous system comprises the spinal cord and brain, while the peripheral nervous system comprises the nerves that connect the central nervous system to the body. Within the peripheral nervous system, there is a sensory (afferent) nervous system responsible for incorporating information from receptors (such as the eyes, the skin for touch, etc.), and a motor (efferent) system that carries the information to the muscles.  

From the functional point of view, it is also differentiated into somatic and autonomic system. The somatic nervous system consists of neurons that control voluntary actions, while the autonomic nervous system is responsible for involuntary functions. And within the latter group are included the sympathetic nervous system (which is activated in situations of danger to stimulate many organ functions that cause a rapid response), the parasympathetic (which is involved in the regulation of several organs and its action is opposite to that of the sympathetic nervous system) and the enteric nervous system in the gastrointestinal tract.  

The muscular system is a set of muscles that can be controlled voluntarily, if we refer to skeletal muscles. <u>Their main function is mobility, an action that takes place when stimuli from the nervous system provoke the contraction of the muscle fibers</u>. There are three types of muscle tissue: skeletal, smooth and cardiac, and all of them are able to contract but they differ in certain characteristics, location and the way in which the contraction is regulated, which can be voluntary or involuntary.  

Muscle tissue receives electrical impulses from the nervous system and responds to them by generating a contraction movement. The neuromuscular junction plate is the connection established between a motor neuron and a muscle, by means of which the neuron transmits electrical impulses to the muscle fiber and between them there is a space called synaptic cleft. When a nerve impulse called action potential travels through the axon of a motor neuron, the neurotransmitter acetylcholine is released into the synaptic cleft, which binds to the muscle cell membrane and causes it to alter its membrane potential causing a depolarization that triggers contraction.  

Finally, the skeletal system consists of a rigid structure formed by bones, and has several functions such as mechanical support, maintenance of posture, makes possible the bipedal position and protection of vital organs. The joints between two adjacent bones, called articulations, make muscular movements possible. <u>In addition, the bones serve as insertion sites for the tendons of the muscles, which allow movement </u>that is controlled by the nervous system and carried out mainly by the muscular system.

So, the nervous system control the muscles and the skeletal system helps to support those muscles.

6 0
2 years ago
900.j of work are done by a light bulb in 15.0 s. What is the power of the light bulb?
vovangra [49]
well power is equal to work multiplied by time so .. 900j divided by 15 s will give you 60 Watt as your answer
3 0
3 years ago
THER
Zielflug [23.3K]

Answer:

Spontaneous Mutations

Explanation:

6 0
3 years ago
Which animal is native to a different part of the world than the other two? walrus polar bear penguin.
salantis [7]

Penguin is an animal that is native to a different part of the world other than the other two

<h3>What is native species?</h3>

Native species refers to species of organisms that of a particular origin. They are organism found in a location where they are native to or have there origin there .

Therefore, Penguin is an animal that is native to a different part of the world other than the other two

Learn more about native species below.

brainly.com/question/14188968

#SPJ1

5 0
2 years ago
Other questions:
  • When the choking victim becomes unconscious cpr should be started without checking the pulse?
    13·2 answers
  • Prokaryotic cells are characterized by their lack of a
    9·1 answer
  • Granite comes from the Latin word called <br>​
    6·1 answer
  • How are starch and glycogen related
    13·2 answers
  • For those with a cholesterol level between 200-270 mg/dL, there were 5 new cases of coronary heart disease during the subsequent
    12·1 answer
  • Explain how the double helix structure of DNA aids in the function of replication.
    7·1 answer
  • Can help me this is question
    6·2 answers
  • Which of the following exceptions to the Fourth Amendment allow law enforcement officers to search email, telephone, medical, an
    11·2 answers
  • How does the longest stage of cell division stated above play a role for growth of plant
    13·1 answer
  • T OR F <br> thank youuuuu
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!