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Harlamova29_29 [7]
3 years ago
5

Do scientists need to worry about herbicide/pesticide resistant weeds

Biology
2 answers:
e-lub [12.9K]3 years ago
6 0
No because most or almost all the pesticides will kill everything 
EastWind [94]3 years ago
4 0
Yes, because it harms animals and food
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Question 8 of 10
Fynjy0 [20]
I believe it’s A but I’m not too sure


Reason; Warm air rises, and when it rises it becomes cooler. ... If the pressure of the surrounding air is reduced, then the rising air parcel will expand. The molecules of air are doing work as they expand. This will affect the parcel's temperature (which is the average kinetic energy of the molecules in the air parcel).
6 0
3 years ago
True or false: The parachute on a dandelion seed makes it easily transported by animals.
Marat540 [252]

Answer:

False

Explanation:

The parachute on a dandelion makes it easily transportable by AIR.

The parachute helps in creating air resistance, and helps the dandelion to glide through the air. The presence of the parachute also plays an important role in the dispersion of its seeds.

8 0
2 years ago
Which of the following occurs during the light-dependent reactions of plants?
zubka84 [21]

Answer:

The correct answer will be option-D.

Explanation:

Photosynthesis proceeds in two stages: light-dependent and light-independent reaction.

The light-dependent begins when the chlorophyll pigment of the photosystem absorbs light energy.  This absorption causes the excitation of the electrons provided by the chlorophyll molecule.  

The excited electrons accepted by electron acceptor molecule from reaction center and a chain of electron flow begin called electron transport chain.

This transport of electrons creates a scarcity of electron in photosystem which causes splitting of the water molecule as a result of which oxygen gas is released.  

Thus, option-D is the correct answer.

3 0
3 years ago
How are absorption and transpiration involved in the movement of water through the xylem of a plant?
Igoryamba
Absorption is when the root absorbs water from the soil and transfers it through the xylem. Transpiration is when the water leaves the leaf surface. The water reaches the leaves through xylem
7 0
3 years ago
A local watershed carries runoff from farms, suburban lawns, and wastewater treatment plants into local rivers, and eventually i
n200080 [17]

Answer:

answer should be "making water hypoxic for organisms". reason is because the runoff from these treatment plants are filled with nutrients, which will cause eutrophication. eutrophication is excessive algae sprouts which create more DO but then later becomes all used up when they decompose, making it so other organisms have no oxygen.

7 0
3 years ago
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