The Excretory System — Biology STD 10 — Question

Mention one difference between the following on the basis of what is given in bracket.
Grass and grasshopper (mode of nutrition)

Mention one point of difference between the following.
Producers and consumers

"Human activities are harmful to the balance of nature." Comment.

Why resources cannot keep pace with the rising population? Give two reasons.

(i) What is interphase?
(ii) Mention three significant changes that occur in a cell during interphase.

Explain the Term :
Myxoedema

What are the advantages of transpiration to the plant?

In a school experiment, students observed the growth patterns of bean plants placed near a window. They noticed that the plants bent towards the light coming through the window. Additionally, they conducted another experiment by placing the plants horizontally. After a few days, they ohserved that the roots grew downwards while the shoots grew upwards, demonstrating different types of tropic movements. Which types of tropic movements were observed in the bean plants during the experinents? Explain them,
Phototropism and geotropism are the tropic movements, noticed during the experiment.

The tendrils of a climber grows around the support. Give reason.

growth regulators on a plant. One group received a cyitalinin-rich solution, and another recetved an aucin-rich solution, Affer a week, they found that cytokinintreated plants had longer stems, while awxin-treated plants had increased root growh.
Auxin is a plant hormone that plays a key role in (a) ____________ and root formation.
Cytokinin is another plant hormone that promotes (b) ____________ Auxin is offen used in agriculture to promote (c) ____________ in cutting propagation.