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Natasha2012 [34]
3 years ago
11

You will be working with acidic solutions, basic solutions, or both in this lab. what safety precautions should experimenters ta

ke before working with these solutions? check all that apply.
Biology
1 answer:
SSSSS [86.1K]3 years ago
6 0
<span>The experimenters should make sure they are using proper clothing and shoes while properly coverings the exposed skin areas. Apart from that they should take proper measures to protect their eyes with proper safety goggles. If using contact lenses rather use eye glasses instead of that.</span>
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Explain why fertilizer use by farmers can have negative effects on aquatic ecosystems?
CaHeK987 [17]
The fertilizers used by farmers can have negative effects on aquatic ecosystems because there is every possibility that the runoffs from the fields can create an algal bloom in the nearby water body. This algal bloom can have a very negative effect on the living organisms of the aquatic body. I hope it helps.
4 0
3 years ago
During a rainy spring, where are you most likely to find surface runoff? PLEASE HELP
natima [27]

Answer: C. On a sloped parking lot

Surface runoff can be referred as the flow of water, that occurs when the excess water flows from the storm water, melt water, flood, rain streams and rain fall. The fast moving water current takes along with it superficial layers like surface and sub- surface layers of soil. Hence, causes water erosion of soil.

The slope parking lot will favor, surface runoff more likely than in a grassy prairie, mulched flower bed, or in a sand pit because the slope will provide a surface for free flow of water. There are chances that water gets absorbed by the soil in the grassy prairie, mulched flower bed and sand pit. Whereas the slopy surface of parking lot will not allow the water retention by soil, instead will accelerate the flow of water.

4 0
3 years ago
A client has been diagnosed with gram-negative pneumonia. Knowing this bacteria has a lipopolysaccharide endotoxin on the outer
agasfer [191]

Answer:

The options

A)Damage to cellular mitochondria

B)Increased ATP levels

C)Activation of the p53 protein

D)Apoptosis

The CORRECT ANSWER IS D

D)Apoptosis

Explanation:

The extrinsic pathway of apoptosis includes extracellular signaling proteins which adhere to cell surface molecules known aa death receptors which in turn activates apoptosis.

The aftermath activates endonucleases prompting division of DNA and ultimately cell death.

Apart from the TNF and Fas ligand, primary signaling molecules also promotes the extrinsic pathway, examples of such are the TNF-related apoptosis-inducing ligand (TRAIL); the cytokineinterleukin-1 (IL-1); and lipopolysaccharide (LPS), the endotoxin located in the outer cell membrane of gram-negative bacteria while the activation of the p53 protein, and decreased ATP levels in the intrinsic pathway results in DNA damage.

6 0
3 years ago
Which category includes the terms carbon dioxide, methane, nitrous oxide, and CFCs?
iren [92.7K]

Answer: greenhouse gases

Explanation:

edge 2020

8 0
2 years ago
Read 2 more answers
An example of active transport
Viktor [21]
Examples of active transport include the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants.
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3 years ago
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