<u>Answer</u>: B. An algal bloom
<u>Explanation</u>:
- Fertilizers manufactured from petrol or natural gas are called <em>artificial fertilizers</em> and they consist of a wide variety of nutrients like nitrates, magnesium, phosphorous and potassium.
- Normally, in the water bodies, the number of algae is very less due to less amount of nutrients present in it. However, when these artificial fertilizers reach the water bodies, they release their nutrients quickly which causes a spurt in the growth of algae known as <em>algal bloom</em>.
- When the algae die, its decomposition by the microbes causes a decrease in the dissolved oxygen concentration in water and leads to the death of fishes.
Answer:
The neutrophil forms multiple lamellipodia extensions
Explanation:
Neutrophils are white blood cells (granulocytes) which comprise the first line of defense in the innate immune system. The lamellipodium (in plural, lamellipodia) is a cytoskeletal actin extension found in mobile cells, whose main functions are cell motility and migration. Rac1 is a member of the Rho GTPase protein family which is involved in actin-myosin cytoskeletal reorganization of neutrophil cells in response to microorganism infections. In this regard, it has been shown that Rac1 controls the initial uncapping of actin ends in order to regulate cytoskeleton dynamics, thus regulating lamellipodia formation. By using mice as models, researchers observed that Rac1 constitutive activation may lead to the formation of multiple lamellipodia in neutrophils.
It is true that plants need salts and minerals to grow, but access salts can lead to the plant dying. (Like how humans need some salt in there diet, but access salt is not healthy. That is why it is bad to drink sea water) Anna's way of thinking is incorrect. Salty water could lead to the plant dying because too much salt could be toxic instead of helping them grow better.
Darker colors absorb and retain warmth than warm tones. As a result, plants in the tundra have dark-colored leaves, hairy and clumped and stems to help them absorb solar heat faster and stay warm for longer periods of time. So it could be tundra ecosystem according to the given scenario.
<h3 /><h3>What is tundra ecosystem?</h3>
Tundra ecosystems are treeless areas found in the Arctic and on mountain peaks where the climate is cold and windy and rainfall is scarce.
Much of the year, tundra lands are covered in snow, but summer brings bursts of wildflowers.
Darker colors absorb and retain warmth than warm tones. As a result, plants in the tundra have dark-colored leaves, hairy and clumped and stems to help them absorb solar heat faster and stay warm for longer periods of time.
Thus, the correct ecosystem for the given condition is tundra.
For more details regarding tundra ecosystem, visit:
brainly.com/question/12085624
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Zebra mussels will take over an ecosystem and deplete resources that species indigenous to the area require to survive.
