Calcium is vital for cell division and is a key component of cell walls, providing structural stability.

Calcium is crucial for maintaining cell wall stability and structure in plants.

Nitrogen deficiency leads to chlorosis, which is the yellowing of leaves due to insufficient chlorophyll production.

During metaphase, chromosomes align at the metaphase plate, preparing for separation.

Ovulation occurs during the ovulatory phase of the menstrual cycle when an egg is released from the ovary.

The endometrium thickens during the luteal phase of the menstrual cycle in preparation for a potential pregnancy.

The genotype of the F1 generation from a cross between TT and tt will be Tt (all offspring will be heterozygous).

The expected phenotypic ratio in a dihybrid cross is 9:3:3:1.

A rabbit is a primary consumer as it feeds on plants (producers).

An increase in the prey population typically leads to an increase in the predator population due to more available food.

Predators help control the population of prey species, maintaining a balance in the ecosystem.

A test cross is performed by crossing an individual of unknown genotype with a homozygous recessive individual.

Pioneer species are the first organisms to colonize previously uninhabited or disturbed environments.

After fertilization, the ovary develops into a fruit, which contains the seeds.

In Mendel's experiments, yellow seed color was observed to be dominant over green seed color.

Stems, particularly in the form of runners or tubers, are primarily responsible for asexual reproduction in many plants.

Flowers are the reproductive structures in plants that facilitate sexual reproduction.

Frogs typically exhibit external fertilization, where eggs and sperm are released into the water.

Binary fission is a form of asexual reproduction commonly seen in unicellular organisms like Amoeba.

Frogs exhibit external fertilization where eggs and sperm are released into the water.

Respiration occurs in all parts of the plant, including roots, leaves, and stems.

During Anaphase, sister chromatids are pulled apart and move toward opposite poles of the cell.

The G1 phase is where the cell spends most of its life, performing normal functions and growing.

Iron is crucial for chlorophyll synthesis and is involved in various enzymatic reactions in plants.

'Survival of the fittest' is a phrase often associated with Darwinism, which emphasizes the role of natural selection in evolution.

The five-kingdom classification system was proposed by Robert Whittaker.

Taxonomy is the scientific study of classification of organisms.

Viruses are considered non-living entities as they cannot carry out metabolic processes independently.

Insulin is the hormone produced by the pancreas that lowers blood sugar levels by facilitating the uptake of glucose into cells.

The average duration of a human menstrual cycle is approximately 28 days.