Differentiate between "selective and non-selective herdsicides?

B cells have multiple roles in immune activation and inflammation separate from their capacity to produce antibodies. B cell depletion is currently under intense investigation as a therapeutic strategy for autoimmune diseases. The TNF family members B cell-activating factor of the TNF family (BAFF) and its homolog A proliferation-inducing ligand (APRIL) are B cell survival and differentiation factors and are therefore rational therapeutic targets. We compared the effects of BAFF receptor-Ig, which blocks only BAFF, with those of transmembrane activator and calcium modulator ligand interactor-Ig, which blocks both BAFF and APRIL, in a murine SLE model. Both reagents prolonged the life of NZB/W F1 mice when given either before or after disease onset.

Basically, there are two main types of herbicides - selective and non-selective. The former is used when inhibiting the growth of a specific weed, leaving the other plants unharmed. The non-selective variants kills all the plants it comes in contact with.

Selective Herbicides

This chemical is formulated to be extremely potent to specific types of plants only, such as grass and broadleaf weeds. However, it is not harmful to other plant species. When using selective herbicides, it’s important to read the product label to confirm it targets the type of plants you want to eliminate.

The effectiveness of its use is dependent upon the dosage and timing of the application. Here are some herbicides in the selective category:

Turflon Ester Ultra

This specialty post-emergent herbicide works best on broadleaf weeds and vines such as kudzu and ivy.

Non-Selective Herbicides

This variant is designed to eliminate a broad range of weeds and plants. It works either by contact or systemic mode of action. Some of popular non-selective herbicides are the following:

Round-Up (Glyphosate)

This is a systemic, post-emergent herbicide which kills perennial weeds. One of the advantages of using this chemical is how toxic it is to plants but does not pose any harm to animals and humans.

However, because of its toxicity to broad range of plants, even a small amount of spray that drifts away can harm ornamentals nearby.

Explanation:

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

that would be because of both gravity and friction. so     c