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otez555 [7]
2 years ago
5

18. How has the use of herbicides affected agricultural productivity?

Biology
1 answer:
Korolek [52]2 years ago
4 0

Answer:

B. Fewer pesticides are needed because of parasitoids.

Explanation:

Herbicides are chemicals utilized to manage or command unwanted vegetation. Herbicide employment happens most commonly in row-crop cultivation, where they are employed before or throughout seeding to maximize yield productivity by decreasing other vegetation.  Yields have improved considerably, and, in association with tillage, herbicide use decreases erosion, fuel usage, greenhouse gas discharges, and nutrient run-off, and preserves water.

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Terms matched with the right definitions.  

1. An organism that can make its own food – Autotroph

2. A symbiotic relationship between two organisms in which one species benefits and no effect is apparent to the other species – Commensalism.  

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An autotroph is an organism that produces its own food from simple substances available in its environment. Autotrophs usually use inorganic chemical reactions or light energy in producing their food and are usually the producers in a food chain. Examples of autotrophs are plants and algae.


Commensalism is a type of relationship between organisms of two species where one organism benefits from the relationship and the other organism is not affected by it (neither benefits nor harmed).



5 0
3 years ago
If a cell has 8 chromosomes, how many chromosomes will each of its daughter cells have after mitosis?
Kisachek [45]

Answer:

From what I remember in my 9th grade biology class, it's usually half that amount.

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2 years ago
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b

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