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babunello [35]
3 years ago
11

A zebra mussel is discovered in a lake in Pennsylvania for the first time. Why would this make an ecologist worried?

Biology
2 answers:
Elena L [17]3 years ago
4 0

Answer:

D

Explanation:

Zebra mussels can be a nuisance in novel ecosystems. When introduced in a non-native ecosystem with no natural predators, they reproduce rapidly displacing native mussels. Zebra mussels take up much of the algar that feeds the other native species hence starving them to death and causing their numbers to plummet. In addition, they attach to the other mussels and clog up power plants, that use the local water, water intakes.

ioda3 years ago
3 0

Answer:

D. Zebra mussels are an invasive species that can completely disrupt an ecosystem  

Explanation:

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snow_lady [41]

Answer:

Many species would eventually die off because they lack a food source.

Explanation:

<u>Photosynthesis can be defined simply as the biological process of using light to synthesize food (in the form of glucose). It is a process that takes place in plants and involves the synthesis of sugar using inorganic products such as water and carbon dioxide.</u>

6CO_2 + 6H_20 + (energy) → C_6H_1_2O_6 + 6O_2

The process consists of two stages namely;

  • Light reaction
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The products from the light reaction are utilized in the light-independent reaction.

<em>Hence, without light energy, the process of photosynthesis cannot proceed and plants will not be able to manufacture foods. Without foods, many plant species would die off. </em>

7 0
3 years ago
How do the long strands of DNA fit into the nucleus of a single cell?
Nezavi [6.7K]

The wrapping goes on and on to reach the level of packing.

Explanation:

4 0
3 years ago
Inter calary meristem is also called as​
Artist 52 [7]

Answer:

Intercalary meristem is a type of meristematic tissue associated with the growth in length in the middle position, thus the name. In particular, it is made up of meristematic cells that divide mitotically in the stem at the base of nodes and leaf blades. The growth at this point is referred to as intercalary growth.

Explanation:

hopw this helps :)

5 0
2 years ago
How does the environment affect the organism, and vice versa? what effects, good as well as bad, have humans had on the environm
TiliK225 [7]
In an ecosystem, two factors are being classified which are the abiotic and the biotic factors. Both of these factors play an important role in order to balance the ecosystem and maintain the harmony of the living things therein. The environment includes the abiotic factors which are the sunlight, weather, water, air, and all other factors which are not living but contribute to the growth and development of the living ones. For example, plants cannot live without water, sunlight and carbon dioxide. The effects that humans have on the environment is both good and bad. Humans also play an important role in maintaining the environment, and they also have the capability to endanger it. 
8 0
3 years ago
1. Why is the quadrat method useful for estimating snall populations? Explain why the same method would not be useful for counti
irga5000 [103]

Answer:

Quadrat method is used for estimating the number of individuals in an area. In this method, a large square area on the ground or water surface is marked, call it an enclave. The number of animals present in this enclave is counted. Then by assuming that the animals are less migratory and are uniformly distributed, their number for a large area is estimated by the use of unitary method of calculation. Example a 4 square feet area has 2 snails, then a 1000 square feet area will have (1000 x 2)/4, i.e, 500 snails in it. Fishes can be counted using this method only if they are confined in a small water body like a lake or a pond. Rivers are flowing so the fishes may move along its length which can give us an underestimate or an overestimate of their numbers. Sea has its depth and huge area, and fishes can be moving randomly in it. Hence this method will not work for river and sea fishes.

Explanation:

Hope this helps :D

7 0
2 years ago
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