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WITCHER [35]
3 years ago
9

How do toothed whales produce general communication sounds?

Biology
1 answer:
ankoles [38]3 years ago
8 0

Answer:Toothed whales do not make the long, low-frequency sounds known as the whale song. Instead they produce rapid bursts of high-frequency clicks and whistles. Single clicks are generally used for echolocation whereas collections of clicks and whistles are used for communication.

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Which membrane would show a more rapid recovery of fluorescence in a frap study?
ziro4ka [17]

Answer: a membrane containing a larger proportion of unsaturated fatty acids

Explanation:

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3 years ago
what type of cell has a flagellum on its surface an animal cell, a viral cell, a plant cell, or a diseased cell
Elena-2011 [213]
An animal cell is your answer.
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3 years ago
Which stains are used to visualize structures in the membrane?
Rufina [12.5K]

Acid-fast and Gram is used to visualize the structures in a membrane.  

It is a differential staining procedure which is used to identify, <em>mycobacterium tuberculosis and M. leprae.</em>

Acid-fast bacteria are considered to be gram-positive in terms of their structure as, they contains peptidoglycan in its cell wall.

They stain poorly with Gram stain procedure, and appears as weak Gram-positive.

Membranes are consisted of lipid bilayer, which is doubled layer of phospholipid, glycolipid and cholesterol molecules, which contains the chains of fatty acids,  and

<em>determines weather a membrane is formed into long flat sheets or round vesicles.</em>

To examine the membrane protein structure, Electron microscopy technology is used and it enables the visualization of single protein at nanometers resolution.

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5 0
2 years ago
True or False. The mitotic spindle consists of two types of microtubules: kinetochore microtubules and nonkinetochore microtubul
sammy [17]

Answer:

True.

Explanation:

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The microtubules shows different function in different cell stages. During prophase stage of the cell cycle, the microtubules gets increase in length. During anaphase stage of the cell cycle , the nonkinetochore microtubules increase in the length the kinetochore microtubules gets short.  During telophase stage of the cell cycle, the nonkinetochore microtubules gets disassemble.

Thus, the answer is true.

4 0
4 years ago
Match the following organs and organ systems. 1.digestive system brain 2.central nervous system tracheal system 3.respiratory sy
Amiraneli [1.4K]

The correct macthing of the organs with their organ systems is as follows.

1. Digestive system - intestines.

2. Central nervous system - brain.

3. Respiratory system - tracheal system.

4. Excretory system - bladder.

Digestive system is made up of the alimentary canal consisting of the digestive organs and the glands. Among the digestive organs, the intestines play a major role in the process of digestion. The small intestine is the site of complete digestion which is associated with the pancreas and liver. The large intestine is involved the absorption of water from the digested food and remaining waste material is stored and thrown out of the body during defecation.

The central nervous system is made up of the brain and the spinal cord. The brain makes the largest part and the functional of the central nervous system. It controls most of the activities of the body. It is made up of three parts called the cerebrum, cerebellum and medualla oblongata and is protected by the skull.

The respiratory system is divided into the upper respiratory tract consisting of the nasal cavity, pharynx and larynx, and the lower respiratory tract consisting of the trachea, bronchi, bronchioles and the alveoli. The trachea or the wind pipe is a cylindrical tube infront of the oesophagus, supported by 16-20 C-shaped hyaline cartilage. It serves as a passage for air to move in and out of the lungs.

The excretory system is made up of a pair of kidneys, a pair of ureters, an urinary bladder and an urethra. The urine produced by the kidney flows through the ureters and is collected in the urinary bladder. A spinchter (a ring of muscle) guards the opening of the bladder into the urethra and relaxes only at the time of urination under the impulse from the brain.

6 0
3 years ago
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