Explain the evidence to support the hypothesis that progymnosperms are progenitors of seed plants.
Explain the evidence to support the hypothesis that progymnosperms are progenitors of seed plants.
Homework Answers
Answer- Progymnosperms are an extinct group of woody spore bearing plants that is presumed to be have evolved from trimerophytes and are thought to be ancestors of gymnosperms. This is evident from their characters as-
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Explain the evidence to support the hypothesis that
progymnosperms are progenitors of seed plants.
Name three advantages that a seed provides to seed plants that more primitive seedless plants lack
Name three advantages that a seed provides to seed plants that more primitive seedless plants lack
can soil composition affect seed germination of plants or the rate of germination? can soil moisture...
can soil composition affect seed germination of plants or the rate of germination? can soil moisture affect the seed germination of quinoa ? (especially high soil moisture ) Provide two scientific articles to support your answer (Just the link)
What is the primary function of a seed in seed plants? 1 all of these 2...
What is the primary function of a seed in seed plants? 1 all of these 2 protect and provision an embryo so that it can disperse and grow without drying out 3 provide a resource that attracts pollinators to the plant to disperse the seed 4 enable the union of egg and sperm in the absence of standing water
All seed plants are heterosporous and produce pollen grains as well as seeds. However, there are...
All seed plants are heterosporous and produce pollen grains as well as seeds. However, there are examples of transitions between seedless vascular plants and seed plants. What seedless vascular plants are heterosporous?
Give evidence to support the hypothesis that sieve-tube elements and companion cells are closely related developmentally.
Give evidence to support the hypothesis that sieve-tube elements and companion cells are closely related developmentally.
Some species of plants produce relatively modest numbers of seed most years, but every so often...
Some species of plants produce relatively modest numbers of seed most years, but every so often the entire population produce massive amounts of seeds (masting). Explain how this relates to seed predation and give examples to illustrate your answer.
after running a hypothesis test, there was evidence to support the mean final percent for all...
after running a hypothesis test, there was evidence to support the mean final percent for all students was less than 80%. concerned that this might be a problem, I found the mean final percent for all students to be 80%. What type of error is this?
Describe the conditions on Earth that is thought to have favored the evolution of seed plants?...
Describe the conditions on Earth that is thought to have favored the evolution of seed plants? What, in your own words, is a seed and how is it different from a spore?
Which of the following traits can be thought of as a homoplasy between seed plants and...
Which of the following traits can be thought of as a homoplasy between seed plants and amniotes? Select all that apply Allantois Chorion Food source for the embryo Waterproof covering
What are two major evolutionary advances of seed plants? What advantages do they offer?
What are two major evolutionary advances of seed plants? What advantages do they offer?
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