Calcium is vital for maintaining cell wall stability and structure, as well as signaling within the plant.

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.

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

During inhalation, the diaphragm contracts, increasing the volume of the thoracic cavity and decreasing the pressure, allowing air to flow in.

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

Oxygen enters the bloodstream during inhalation when air is drawn into the lungs and diffuses across the alveolar membrane.

During exhalation, the diaphragm relaxes, causing the thoracic cavity to decrease in volume and air to be expelled from the lungs.

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 embryo implants into the uterine wall during the blastocyst stage of development.

Ethylene is produced in response to low oxygen levels, particularly during stress conditions like flooding.

When a trait is controlled by multiple alleles, it is referred to as multiple alleles.

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

The height of the F1 generation will be tall, as tall is the dominant trait.

The F1 generation will have red flowers since red is dominant over white.

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).

The correct order of energy flow in a food chain is Producer → Consumer → Decomposer.

Primary producers are organisms that produce their own food, primarily plants through photosynthesis.

In a pedigree chart, a filled circle represents an affected female.

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.

In a test cross, an individual with a dominant phenotype is crossed with a homozygous recessive individual to determine its genotype.

In a test cross, the individual with an unknown genotype is crossed with a homozygous recessive individual.

Herbivores are primary consumers as they feed directly on producers (plants).

Plants are primary producers as they convert sunlight into chemical energy through photosynthesis.

In angiosperms, the ovary develops into a fruit, which contains the seeds.