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vladimir2022 [97]
2 years ago
6

Please helppp!!!!!!!!!!!!!!!!!!!!!!!!

Biology
2 answers:
enyata [817]2 years ago
8 0

Answer:

It is B the nematocysts they can defend against predators.

Ronch [10]2 years ago
5 0

Answer:

B (nematocysts)

Explanation:

A nematocyst is a long, thin, coiled stinger. It has a barb that may inject poison. These tiny poison "darts" are propelled out of special cells. They are used to attack prey or defend against predators.

Have an awesome day friend! :D

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PLEASE SOMEONE AWNSER THIS FOR REALLLL PLEASEEEEE
ziro4ka [17]

Answer:

It is pertinent to understand what hypertonic, hypotonic, and isotonic solution means before setting out to explain how a cell reaches equilibrium in each type of solution.

A hypertonic solution is one whose solute concentration is higher than that of the sap of a cell that is immersed in it.

A hypotonic solution is one with the same solute concentration as that of the sap of the cell immersed in it.

An isotonic solution has a lower solute concentration than that of the sap of the cell immersed in it.

In biological systems, water molecules move by osmosis from the region of higher water potential or lower concentration of solutes to the region of lower water potential or higher concentration of solute. An equilibrium is reached when there is no net movement of water between two sides. Hence;

A cell placed in a hypertonic solution will lose water to the surrounding solution until an equilibrium is reached. This means that such a cell will end up shrinking (wilting) or even dying due to loss of water from the cell sap.

A cell placed in a hypotonic solution will gain water from the surrounding solution until there is no net movement of water anymore. Such a cell might become turgid or even burst out its cell content.

A cell placed in an isotonic solution will neither gain nor lose water because the cell sap and the surrounding solution have equal solute concentrations.

Explanation:

3 0
2 years ago
Sputum __________ are used to detect the pathogen infecting the lungs or breathing passages.
Nina [5.8K]
<span>Sputum membranes tests are used to test the lungs, trachea and bronchial canals for pathogens that can have an adverse affect on the lungs. These pathogens can cause infections that can have serious effects on your breathing and all over health.</span>
4 0
3 years ago
Living parts of an ecosystem such as individual organism population communities and there interactions are called ______? A habi
OleMash [197]

Answer: C Biotic Factors

Explanation: Biotic factors are the living aspects of an ecosystem such as fish and plants, while abiotic factors are the nonliving aspects such as water and rocks. Habitat is the home of the biotic factors.

brainliest please :)

8 0
3 years ago
Classifying animals into different taxa can also reflect evolutionary relationships. consider this cladogram with two main branc
Sveta_85 [38]
Organisms at point C will have hair.<span> All organisms on the main right branch will have bilateral symmetry.</span><span> All of the organisms from point B on are terrestrial.</span>
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3 years ago
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Zielflug [23.3K]

Answer:

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The most general pathogens, which are found in Sputum culture are Haemophilus influenzae, Streptococcus pneumonia, Mycobacterium species, and Staphylococcus aureus. In the given case by observing the symptoms demonstrated by Navin, one can presume that Navin is suffering from Tuberculosis.  

The disease is the result of Mycobacterium tuberculosis bacteria. These are the pathogenic bacteria, that comprise a mycolic acid on its cell surface. Due to the presence of this coating, it is tough to determine it with the help of Gram staining. Thus, Acid-fast staining, like Zehl-Neelsen is used.  

These bacteria are aerobic in nature and need a huge concentration of oxygen, it mainly infects the respiratory system of the mammals, and generally spreads from infected persons via sneeze, coughing, talks, or laughing. Smoking is also a supplementary element of the condition. The major symptoms of the condition are weight loss, fatigue, severe cough, no appetite, chest pain, and night sweats.  

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