Today, the tallest bryophytes reach a maximum height of 20 centimeters (8 inches) or so. So far as we know from fossils, there were no giants among their ancestors. Lignin and vascular tissue first evolved in relatives of club moss, and some extinct species stood 40 meters (130 feet) high. Among modern seed plants, Sequoia (a gymnosperm) and Eucalyptus (an angiosperm) can be more than 100 meters (330 feet) high. Explain why the evolution of vascular tissues and lignin would have allowed such a dramatic increase in plant height. How might being tall give one plant species a competitive advantage over another?

Q: generation (sporophyte or gametophyte) of the conifer life cycle actually produces the egg and is…

A: Sporophyte generation of the conifer life cycle actually produces the egg and is protected inside…

Q: What are the features of bryophyte gametophytes and sporophytes?

A: We are answering first question. For rest questions pls repost.

Q: What similar features do gymnosperms and angiosperms possess thatdiffer from other modern vascular…

A: Angiosperms and gymnosperms are seed-bearing plants. They have a natural ability to produce seeds…

Q: What is a seed? Which generation (gametophyte or sporophyte) produces it? How does the term relate…

A: Thank you for the question  Answer Seed is a part of a seed plant that develops from fertilized…

Q: One of the major phylogenetic conclusions of this study is: choose one    a.   The Ginkgoales…

A: Answer : d.   The Gnetales are the sister group to angiosperms among extant gymnosperms.

Q: What evolutionary advantages do seed provide over spores? What was early gymnosperm ecology like?…

A: Bryophytes and pterophytes, like gymnosperms and angiosperms, have a life cycle marked by the…

Q: When two gametes come together from different plants, the zygote matures into a: Sporophyte…

A: Fertilization is defined as the fusion of male and female gamete.

Q: There are four phyla that belong to the gymnosperm. Describe Phylum Ginkgophyta and explain why and…

A: Four phyla of gymnosperms are:- 1) Phylum Gnetophyta.  2) Phylum Cycadophyta  3) Phylum Ginkgophyta.…

Q: After following the life cycle of an unknown plant species, you determine it's life cycle in the…

A: Acc to the five kingdom Classification system; Basidiomycetes is a member of Kingdom fungi and…

Q: How would you classify a plant with the following characteristics: 50 m tall, thin flat leaves, deep…

A: The Plant kingdom consists of all the diverse forms of plants that are present on earth.  Plants are…

Q: gymnosperms heterosporous or homosporous? Explain what this means. What are the evolutionary…

A: Gymnosperms are vascular seeded plant which do not produce flowers , and bear needle leaves They…

Q: Vascular plants evolved to have the apomorphic characteristics that enabled them to grow with…

A: Vascular plants These are plants that have specialized vascular tissues; xylem and phloem. These…

Q: Mature sporophytes Look up the terms frond, rhizome, and roots, and define them. These three…

A: * Fronds means they are the leaves of ferns composed of a leafy blade and petiole. *Rhizomes are…

Q: Ginkgo and cycads have broad leaves, whereas those of pines are needlelike. Can you suggest any…

A: Gingko, cycads, and pines are all examples of gymnosperms. They are often considered to be living…

Q: Although there are fewer than 1,000 species of gymnosperms,the group is still very successful in…

A: Flowering plants are classified into two large groups. They are Gymnosperms and angiosperms. The…

Q: Ferns and their allies are both vascular plants which means they all contain the xylem & phloem for…

A: Ferns are unique in land plants in having two separate living structures, so the ferny plant that we…

Q: Give and state general habitats of bryophytes Stomata differentiation between bryophytes and…

A: Bryophytes are amphibians of land and are non vascular plants. These include liverwort, moss and…

Q: Which of the following incorrectly pairs a sporophyte embryo with its food source? * A. Moss…

A: The Plant Kingdom is extremely valuable to humanity as a resource. Humans would be unable to exist…

Q: Table 4 Comparison of Important Characteristics of Plants Trait Charophytes Bryophytes Pteridophytes…

A: Plants are believed to have emerged from an aquatic green alga protist. Later, they evolved…

Q: Corn develops from a seedling with a single cotyledon, displays parallel veins on its leaves, and…

A: Cotyledons: Within the embryo of seed, a seed leaf is present known as cotyledon. This helps to…

Q: The classification of the seed plants has varied. If a person groups all seed plants together in one…

A: Introduction  Life originated on earth around 4 billion years ago in the ocean. However, it was just…

Q: working in the field, you discover a fossil of a previously undescribed plant species. the specimen…

A: Fossils help to predict the nearest predecessor and investigate evolution. They can help in…

Q: A. The gymnosperms evolved during the Permian period and dominated the Mesozoic Era. BRIEFLY…

A: INTRODUCTION Gymnosperm These are vascular plants reproduced by exposed seeds.

Q: What can you say about an early interpretation or hypothesis that the gnetophytes are probably the…

A: Taxonomy is the branch of biology concerned with the placement (of a new creature into an existing…

Q: List FOUR examples of angiosperm and/or gymnosperm plant species that are economically important

A: Angiosperms are plants with seeds enclosed in fruit whereas gymnosperms have naked seeds.

Q: A botanist discovers a new species of plant in a tropical rain forest. After observing its anatomy…

A: The plant kingdom is classified into Algae, bryophytes, pteridophytes, gymnosperm and angiosperms.

Q: What support structure for seedless vascular plants, gymnosperms grow 10 or 100 of feet tall? -…

A: Gymnosperm is a group of seedless vascular plants that do not produce seeds or fruits. These are…

Q: According to the cladogram in Figure 27-5, which plants evolved first: nonvascular bryophytes,…

A: Cladogram is determined as a type of an evolutionary diagram that holds some ancestral relationship…

Q: Which option is TRUE regarding the life cycle of a flowering plant?     gametophyte and sporophyte…

A: Flowers are the specialized organs to perform sexual reproduction in the angiosperms. They are…

Q: Most extant species of gymnosperms are now considered as "living fossils", why is that so? Give some…

A: A living fossil is an existing taxon that resembles ancestor species only known from the fossil…

Q: Complete this table: Comparison of Important Characteristics of Land Plants Features Moss Fern…

A: The classification within kingdom Plantae is based upon multiple characteristics including the…

Q: When vascular tissue first forms, the central cylinder of xylem and phloem is called a stele. The…

A: As mentioned in the question The stele is the central part of stems or roots of vascular plants…

Q: Which of these time intervals, based on plant fossils, came last (most recently)? O colonization of…

A: One of the gymnosperm organisms that ruled the planet at the time may have developed into the first…

Q: The following traits are shared by some members of the ANA Grade and Magnoliids, EXCEPT: a.…

A: Magnoliids are a huge group of closely related primitive angiosperms that includes over 9000…

Q: While surveying plants in the jungles of Borneo, you come across a flowering plant that you have…

A: Note: As Per Guidelines, We Can Answer One Question At A Time. Ask Again To get rest answers.…

Q: Which of the following statements is false?  Answers: The gametophyte is the dominant form for…

A: Bryophytes are non vascular plants like the mosses. The seedless vascular plants like the ferns do…

Q: Conifers, cycads, ginkgo, and gnetophytes are collectively called (a) club mosses (b) gymnosperms…

A: Introduction Conifers are a category of plants and shrubs that thrive in cooler climates around the…

Q: Early botanists admired ferns but found their life cycle perplexing. In the 1700s, they learned to…

A: Ferns are seedless vascular plants. Ferns have lignin which provides strength to their vascular…

Q: The gametophyte is the dominant stage in the life cycle for which of the following plant groups?…

A: Plants are the organism who have cell wall around cell. They have chloroplast in cells for…

Q: The environments in which ferns grow range from standing water to very dry areas. Nonetheless, all…

A: Plants are organisms with eukaryotic cells having cell walls and are capable of synthesizing their…

Q: The Apiaceae is closely related to the Araliaceae, the family to which ginseng and octopus tree…

A: "Hi! Since you posted multiple questions, we will be answering the first one for you. If you wanted…

Q: Which of these is mismatched?     charophyte - hypha     angiosperm - flower     mushroom -…

A: Plant is described as a  living thing with a stem, leaves, and roots that grows in the ground.

Q: Leaves of conifers are perennial. Those of bristlecone pine live for at least ____ years, and their…

A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…

Q: The Apiaceae is closely related to the Araliaceae, the family to which ginseng and octopus tree…

A: Introduction  The Apiaceae or Umbelliferae family of primarily aromatic flowering plants is also…

Q: Question #1. Identify the economic uses of at least 3 species in each order (Laurales, Magnoliales…

A: 1.Economic uses of Laurales are characterized by woodiness(timber trees), aromatic parts(spice and…

Q: A team of botanists discovers a new species of plant in a tropical rain forest. After observing its…

A: Answer :- A protist is any eukaryotic organism that is not an animal, plant, or fungus.  Mosses are…

Q: Which of the following statements is MOST TRUE about the fern life cycle (for the majority of…

A: Ferns's life cycle has 2 stages one is gametophyte and the other is sporophyte out of this one is…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.