Why Does It Make Sense That Many Fruits Are Green When Their Seeds Are Immature??
Why does it make sense that many fruits are green when their seeds are immature? They are harder to see and thus less likely to be eaten than other fruits. … It is a mechanism for the dispersal of seeds.
Which of the following is the lineage of green algae believed to most resemble early plant ancestors?
|________ a chemical that hardens cell walls and supports terrestrial plants is found in all plants EXCEPT ________.||Lignin bryophytes|
|Which lineage of green algae is believed to most resemble early plant ancestors?||charophytes|
Why are ferns considered incompletely adapted to the terrestrial land based environment when compared with other plants?
Why are ferns considered incompletely adapted to the terrestrial environment when compared with other plants? Their sperm are flagellated and require water for fertilization. They lack gametangia. … Their sperm are flagellated and require water for fertilization.
When brought together in a zoo two species are capable of mating and producing fertile offspring why may they still be considered two distinct species?
When brought together in a zoo two species are capable of mating and producing fertile offspring. Why may they still be considered two distinct species? is the answer because they have no choice so they would have to produce leading in speciation.
Which of the following is a component of the female structure of a flowering plant?
pistil the female reproductive part of a flower. The pistil centrally located typically consists of a swollen base the ovary which contains the potential seeds or ovules a stalk or style arising from the ovary and a pollen-receptive tip the stigma variously shaped and often sticky.
The characteristic shared by both algae and seed plants is the presence of chloroplasts. Algae and seed plants both have chloroplasts.
What traits was most important in enabling the first plants to move onto land?
Land plants evolved traits that made it possible to colonize land and survive out of water. Adaptations to life on land include vascular tissues roots leaves waxy cuticles and a tough outer layer that protects the spores. Land plants include nonvascular plants and vascular plants.
Why are ferns adapted to life on land?
The most notable adaptation made by ferns is the presence of a rhizome. The rhizome or stem of the Licorice Fern develops horizontally beneath the soil containing a growing tip that gives way to new frond development. … By having compounded leaves ferns increase their overall surface area.
Why are ferns poorly adapted to a terrestrial life?
The reason for this is that both moss and fern species are relatively primitive plants that are only imperfectly adapted to a terrestrial environment. … Ferns have both roots and vascular tissue and therefore can grow larger than moss species but like the mosses ferns require water for reproduction.
How have fruits contributed to the success of angiosperms?
The success of angiosperms is due to two novel reproductive structures: flowers and fruit. The function of the flower is to ensure pollination. … The function of the fruit is seed dispersal. They also protect the developing seed.
Why is it incorrect to assume that mass extinctions?
Why is it INCORRECT to assume that mass extinctions carry only negative impact on the evolution of life on Earth? Mass extinctions are sometimes followed by periods of evolutionary change when other organism groups can flourish and expand in diversity and size.
How do scientists know that the hominid called Ardi is about 4.4 million years old?
How do scientists know that the hominid called “Ardi” is about 4.4 million years old? by using radiometric dating techniques on the volcanic deposits found above and below the layer containing Ardi.
What species concept Cannot be applied to fossils?
Because it is impossible to study gene flow and reproductive behavior of species known only from fossil remains the biological species concept cannot be applied to the thousands of species known only from their fossils.
Is the stamen male or female?
What term is used to describe an incomplete flower lacking the androecium?
What term is used to describe an incomplete flower lacking the androecium? … There are two types of incomplete flowers: staminate flowers contain only an androecium and carpellate flowers have only a gynoecium (Figure). The corn plant has both staminate (male) and carpellate (female) flowers.
What will happen if the pistil of the flowers is removed?
If pistil of the flower is removed then no fertilization occurs because pistil has the ability to recognize the pollen. So in the absence of pistil no pollination takes place.
Scientists believe that green algae and plants have a common ancestor because both organisms undergo photosynthesis and they have similar cell walls. They have the same chlorophyll and store food in the form of starch.
Which of these characteristics is shared by algae and seed plants? (Both algae and seed plants have cells with chloroplasts.)
Which of these characteristics is shared by algae and seed plants? Both algae and seed plants have cells with chloroplasts.
How did land plants evolved from green algae?
Evidence shows that plants evolved from freshwater green algae. In plants the embryo develops inside of the female plant after fertilization. Algae do not keep the embryo inside of themselves but release it into water. This was the first feature to evolve that separated plants living on land from green algae.
Which of the following best describes the function of fruits?
Which of the following best describes the function of fruits? The primary function of fruits is the protection and dispersal of seeds.
Why did plants move to land?
Plants evolved from living in water to habiting land because of genes they took up from bacteria according to a new study which establishes how the first step of large organisms colonising the land took place.
What adaptation does a fern have?
How are ferns adapted? The two primary fern adaptations are the development of rhizomes and compounded leaves. While rhizomes develop horizontally beneath the soil and allow for new plant development the compounded leaves grow rapidly and take up more space.
Why is the fern better adapted to life on land compared to Moss?
Fern vs Moss:
Moss plants grow in moist and shady places whereas ferns are able to adapt and live away from the water source.
How did ferns evolve?
Most botanists believe that the ferns and fern allies are descendants of the Rhyniopsida an extinct group of free-sporing plants which originated in the Silurian period (about 430 million years ago) and went extinct in the mid-Devonian period (about 370 million years ago).
How does fern sperm reach the egg?
Why are seeds an evolutionary advantage for seed plants?
Unlike bryophyte and fern spores (which are haploid cells dependent on moisture for rapid development of gametophytes ) seeds contain a diploid embryo that will germinate into a sporophyte. Storage tissue to sustain growth and a protective coat give seeds their superior evolutionary advantage.
Why moss and fern are considered primitive plants?
Bryophytes do not have a true vascular system and are unable to pull water and nutrients up from the ground at any significant distance. Lacking this specialized system distinguishes bryophytes from ferns and flowering plants. It is for this reason that they are considered to be rather primitive plants.
How are fruits formed in angiosperms?
Why are angiosperms successful plants?
Brodribb and Feild argue that more photosynthesis meant more carbon for growth. And that would have given the angiosperms the energy to push competitors like conifers out of the canopy around 150 million years ago making angiosperms the most productive group of land plants in the world.
Why angiosperms are known as covered seeded plants?
The ovules in angiosperms are encased in an ovary not exposed on the sporophylls of a strobilus as they are in gymnosperms. Angiosperm means “covered seed”. The ovules develop into seeds and the wall of the ovary forms a fruit to contain those seeds. Fruits attract animals to disperse the seeds.
Can humans survive mass extinction?
What is the correct format for the scientific name of an extinct carnivorous dinosaur?
What is the correct format for the scientific name of an extinct carnivorous dinosaur. C. Tyrannosaurus rex.
Are we in the 6th mass extinction?
Katie says ‘The current rate of extinction is between 100 and 1 000 times higher than the pre-human background rate of extinction which is jaw-dropping. We are definitely going through a sixth mass extinction. ‘ Never before has a single species been responsible for such destruction on Earth.
Why are there so many types of apples? – Theresa Doud
What if Seeds Disappeared? + more videos | #aumsum #kids #science #education #whatif
4 Reasons Why Your Fruit Tree is Not Producing Fruit