Explanation

Hemophilia is a sex-linked genetic disorder

Because the gene responsible for its development is located on the X chromosome.

Since males only have one X chromosome, they are more likely to be affected by the disorder if they inherit a mutated copy of the gene. Females, with two X chromosomes, can be carriers if they have one mutated copy but still express the normal phenotype due to their other X chromosome. 

Explanation

nsulin is produced by the pancreas, which is an organ located behind the stomach.

The pancreas contains clusters of cells called the Islets of Langerhans, specifically the beta cells within these islets, which are responsible for producing insulin.

Insulin plays a crucial role in regulating blood sugar levels by facilitating the uptake of glucose into cells for energy production or storage.

When blood sugar levels rise after a meal, the pancreas releases insulin to help lower blood sugar levels by promoting the uptake of glucose into cells.

Explanation

Sunlight provides the energy that plants use during photosynthesis to produce food.

It is the primary source of energy in almost all ecosystems.

Explanation

Germination is the process where a seed begins to grow and develop into a new plant.

It starts when the seed absorbs water, swells, and the embryo begins to sprout.

Explanation

Root hairs increase the surface area of roots for efficient absorption of water and minerals from the soil.

They play a key role in anchoring the plant and facilitating nutrient uptake.

Explanation

Chloroplast contains chlorophyll.

It is the site where photosynthesis takes place in plant cells.

It converts light energy into chemical energy (glucose) using carbon dioxide and water.

Explanation

Iron (Fe), Sodium (Na), and Calcium (Ca) are essential minerals required for bodily functions (e.g., hemoglobin, nerve transmission, bone health).

Iodine (I) is a trace element, not classified as a mineral, though it’s vital for thyroid function.

Explanation

Endocardium lines the inner chambers of the heart.

Myocardium is the thick, muscular middle layer responsible for contraction.

Epicardium is the outermost protective layer.

Together, these three layers make up the complete structure of the heart wall.

Explanation

Echinodermata (like starfish, sea urchins) are marine animals and do not include parasites.

In contrast, groups like Nematoda, Platyhelminthes, and Protozoa include many parasitic species.

Explanation