Gimnospermas E Angiospermas

Briophytes, which include mosses and liverworts, require water for their reproduction. This is because they lack specialized tissues for water and nutrient transport, and therefore rely on water to facilitate the movement of sperm to the egg. The sperm of briophytes are flagellated and need a film of water to swim to the egg for fertilization to occur. Without water, the sperm would not be able to reach the egg, resulting in unsuccessful reproduction. Therefore, the statement "As briófitas dependem da água para a reprodução" is true.

Pinheiros, ciprestes, cedros e sequóias são todas gimnospermas, que são plantas que produzem sementes. As gimnospermas não produzem frutos, ao contrário das angiospermas, que são outro grupo de plantas que produzem sementes. Portanto, a resposta correta é "frutos".

The correct answer is "briófitas, pteridófitas, gimnospermas e angiospermas". This is because musgos (mosses) belong to the group of bryophytes (briófitas), avencas (ferns) belong to the group of pteridophytes (pteridófitas), ciprestes (cypresses) belong to the group of gymnosperms (gimnospermas), and arroz (rice) belongs to the group of angiosperms (angiospermas).

Gymnosperms are a group of plants that have naked seeds, meaning they do not have a fruit surrounding the seed. One characteristic that is absent in gymnosperms is the presence of flowers. Gymnosperms reproduce through the use of cones, which are structures that contain the reproductive organs. Flowers, on the other hand, are a characteristic of angiosperms, which are a different group of plants. Therefore, the absence of flowers is a characteristic that distinguishes gymnosperms from angiosperms.

The correct answer is "Grãos de pólen" (pollen grains). Pollen grains are the male reproductive structures of gymnosperms that contain the sperm cells. They are produced in large quantities and are dispersed by wind or animals. This method of reproduction allows gymnosperms to reproduce without the need for water, making them independent of aquatic environments and enabling them to successfully colonize terrestrial habitats.

Pseudofrutos são frutos que se desenvolvem a partir de partes da flor que não são o ovário. Isso significa que eles não se originam da fecundação do óvulo, como ocorre nos frutos verdadeiros. Em vez disso, eles se desenvolvem a partir de outras estruturas florais, como o receptáculo floral ou o cálice. Portanto, a afirmação de que os pseudofrutos se desenvolvem de outras partes da flor sem ser o ovário é verdadeira.

Angiospermas se distinguem de todas as outras plantas pelo fato de apresentarem flores. As flores são estruturas reprodutivas que contêm órgãos sexuais, como estames e carpelos, responsáveis pela produção de sementes. Essa característica é única das angiospermas e as diferencia das outras plantas, como as gimnospermas, que não possuem flores. Os estômatos nas folhas, sementes e vasos condutores de seiva também são características encontradas em outras plantas, não sendo exclusivas das angiospermas.

The highlighted term "pinhão" refers to the edible structures produced in the pine cones of the Paraná pine tree. These structures are actually seeds, which are commonly consumed as a food item. Therefore, the correct answer is "semente" (seed).

The correct answer is I, II e III. This means that the characteristics of pollen grains, vascular system, and seeds are common to both gymnosperms and angiosperms.

The statement is false because the "pinheiro-do-paraná" does not belong to the group of angiosperms. It actually belongs to the group of gymnosperms, which produce seeds that are not enclosed in a fruit. The "pinhão" is the seed produced by the "pinheiro-do-paraná", which is a gymnosperm.

Gimnospermas são plantas que apresentam vasos para a condução da seiva, flores para reprodução sexuada e raízes, caules e folhas verdadeiras. No entanto, diferentemente das angiospermas, as gimnospermas não produzem frutos para conter as sementes. Em vez disso, suas sementes são expostas e não estão envolvidas por um fruto.

The given quote states that "the swimming of the antherozoids is replaced by the growth of the pollen tube." This phenomenon of replacing the swimming of the male gametes with the growth of a pollen tube occurs in gymnosperms. Gymnosperms are a group of plants that produce naked seeds, and their male gametes are transported to the female reproductive structures through the growth of a pollen tube. This is in contrast to bryophytes, pteridophytes, and angiosperms, which have different mechanisms for the transfer of male gametes.

The given statement is false. The correct answer is false because the pollination of the pinheiro-do-paraná (Araucaria angustifolia) is actually performed by the wind, not by birds. However, the dispersal of its seeds is indeed carried out by the wind.

The given answer is "semente" because it is stated in the question that "o pinhão" is an edible structure produced by Araucaria angustifolia trees. In botany, the term "semente" refers to a seed, which is a reproductive structure produced by plants. Therefore, "semente" is the correct term to describe the edible structure produced by Araucaria angustifolia trees.

The correct answer is 2143 because it matches the characteristics of the groups in Column I with the corresponding characteristics in Column II. Briófitas (1) are avascular organisms with a more developed and lasting gametophytic phase than the sporophytic phase. Pteridófitas (2) are vascular organisms without flowers and seeds. Gimnospermas (4) are organisms that have pollen tubes, conducting vessels, and fruits. Angiospermas (3) are organisms that have exposed (naked) seeds.

The correct answer is "dos frutos" because fruits are a unique structure in angiosperms that is certainly related to their wide geographical distribution. Fruits are the mature ovary of a flower and contain seeds, which allow for the dispersal of angiosperm offspring over long distances. This adaptation has contributed to the success and diversity of angiosperms in various habitats around the world.

The statement is false because feijão (beans) is a dicotyledonous plant, while arroz (rice) is a monocotyledonous plant.

Na maioria das angiospermas, o fruto é uma estrutura formada a partir do desenvolvimento do ovário. Isso ocorre após a fertilização do óvulo, onde o ovário se desenvolve e se transforma em fruto. O ovário contém os óvulos, que são fecundados pelo pólen durante a polinização. Após a fertilização, o ovário inicia o processo de desenvolvimento para formar o fruto, que protege as sementes e auxilia na dispersão delas. Portanto, a resposta correta é "Do ovário".

The diagram shows a seed and a leaf, which are characteristics found in dicotyledons. Dicotyledons are a group of flowering plants that have two cotyledons (seed leaves) in their seeds and typically have broad leaves with veins that form a branching pattern. This distinguishes them from monocotyledons, which have one cotyledon and typically have narrow leaves with parallel veins. Gymnosperms are a group of plants that produce seeds in cones, and pteridophytes are a group of plants that reproduce and disperse using spores.

The correct answer is 1d - 2a. This means that option 1 (vasos condutores) is correctly associated with option d (angiospermas), and option 2 (transporte por difusão) is correctly associated with option a (musgos).