bumahh test

Gametophyte

The multicellular stage in the plant life cycle that produces gametes (sperms and eggs); it is haploid (n).

Sporophyte

The multicellular stage in the plant life cycle that produces spores through meiosis; it is diploid (2n).

Pollen

The male gamete in plants, which fertilizes the female gamete (ovule).

Fertilization in plants

The process where the male gamete (pollen) fuses with the female gamete (ovule), resulting in the formation of a seed.

Seed plants

Plants classified as sporophytes, which are the dominant phase and are diploid, having two sets of chromosomes.

Sexual Reproduction

Involves the fusion of male and female gametes, promoting genetic diversity within plant populations.

Asexual Reproduction

A method of reproduction that does not involve the formation of seeds or fertilization; produces genetically identical clones.

Positive phototropism

Directional growth of shoots towards light.

Negative gravitropism

Directional growth against gravity, exhibited by shoots.

Positive gravitropism

Directional growth of roots towards gravity.

Pollination

The transfer of pollen grains to the female reproductive structures, facilitating fertilization.

Plant Signals

Signals that attract pollinators, including bright flower colors and sweet scents.

Thorns and spines

Physical plant defenses that deter herbivores.

Vascular tissue

Tissue that facilitates efficient transport of water and nutrients, allowing plants to thrive in terrestrial environments.

Transpiration

The process of water loss primarily through stomata, small openings on the leaf surface.

Guard Cells

Cells that control the opening and closing of stomata, regulating gas exchange and water retention.

Seed Dispersal

Methods by which seeds are spread away from their parent plant, including wind, animal, and water dispersal.

Innate Behavior

Inborn and automatic behavioral responses, often instinctual.

Learned Behavior

Behaviors developed through experience and interaction with the environment.

Imprinting

A form of learning where an animal forms attachments during a critical early life stage.

Altruism

Behaviors that help others at a cost to oneself, benefiting the welfare of the group.

Territorial Behavior

Defending a specific area that provides necessary resources such as food, mates, and shelter.

Haploid

A cell or organism that contains a single set of chromosomes (n).

Diploid

A cell or organism that contains two sets of chromosomes (2n).