<span>D. Lancelet, are examples of an invertebrate chordate:)</span>
Answer:
Explained below:
Explanation:
Density-dependent factors are biological factors adopted by the population as a resource. The things can be like shelter, food, or different poor resources. Density-dependent factors affect fitful variations in the population as its density fluctuations. If the population is small, these portions typically support improved rates of birth and lower will be the death rates, empowering the population to increase and when the population is big and thick, these factors display that the birth rate is decreased and death rate became higher.
<u>Gymnosperms and Angiosperms-</u>
Gymnosperms and angiosperms evolved seeds and pollen grains allowing them to live and reproduce in drier habitats than bryophytes and seedless vascular plants.
<u>Properties of gymnosperms and angiosperms-</u>
Gymnosperms are plants which bear seeds without fruits or without any outer coverings. These plants also do not produce flowers. Most plants under this group have needle-shaped leaves. This is an adaptation as these plants grow in colder conditions. Gymnosperms. These plants produce pollen without bearing flowers. Angiosperms are found in almost all climatic conditions. These plants bear flowers and produce seeds that are enclosed inside a fruit or inside an ovary. The seeds of angiosperms have a single cotyledon.
Learn more about Gymnosperms and Angiosperms here-
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