Question

an aphid pierces it's proboscis in to the _____ to the plant juices​

Answer 1

Answer:

Phloem

Explanation:

Phloem contains phloem sap which has carbohydrates where sucrose is the most transportable form. In some species, in addition to sucrose, oligosaccharides are also present. Phloem transport food that is mostly prepared in leaves from photosynthesis to different parts of the plant. Phloem sap is very rich in nutrients and taken by organisms such as aphides. 

Xylem transport water and solutes from roots to leaves. It also help in replace water that is lost during transpiration and photosynthesis. Both xylem and phloem are present in Vascular bundle, a part of transport system in vascular plants. The cambium is a layer of actively dividing cells which are present between xylem and phloem. It is responsible for the secondary growth in plants.

So the correct answer is 'Phloem'.

Answer 2

Answer:

Aphids are plant eating insects that pierce their proboscis into the stem of the plant to extract plant juices. Although they can extract plant juices from roots, stems and leaves but the part of the plants which is most suitable for them to extract the juices is stem.

Explanation:

so answer is 'stem'..... hope it helps u mark it as brainliest plz...