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Four: bryophytes, ferns, gymnosperms and angiosperms
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Why do scientist classify living things?
To be able to study all the living things in our universe, we need a way to group or classify them together. Scientists divided all things into living and non-living. Then they divided those (e.g. animal kindom and plant kingdom, then continued dividing them on how the items were seimilar or dissimilar).
What characteristics do scientists use to classify protists?
Protists are difficult to classify, and classification has changed over time. Modern definitions of protists are: "any eukaryote that is not an animal, (land) plant, or (true) fungus" and the second, which describes them mostly by functional or biological terms: "eukaryotes that are never multicellular, that either exist as independent cells, or if they occur in colonies, and do not show differentiation into tissues." Modern classification uses monophyletic groups that are based on ultrastructure, biochemistry, and genetics. visit the Related Link for more information.
Is a large patch of grass a plant animal algae fungus?
Grass is a plant. A "large patch of grass" is a group of plants.
Why Scientist redo their experiment?
In an experiment, there are many variables (things that can't be controlled). For an accurate result, experiments must be done many times over to so that a pattern can be seen, giving scientists an idea of what the result is. For example, if you tested how music affected plant growth, and tested it once, if the plant died because of other causes, it could seem like the music affected the plant. By doing the experiment many times and seeing no affect on the majority of the plants, the scientists would see that music has no affect on plant growth. Scientists redoing experiments is to ensure that the results are credible.
Can Scientists can produce plant food just like a leaf can?
They remove the cell wall, the cells can take up DNA by themselves, or it can be inserted directly into the nucleus.Plant cells can also be transformed without removing the cell wall. DNA that codes for a gene of interest can be inserted within a length of DNA that also has coding for transposon activity. The DNA is then attached to ultra-fine particles of gold, which are "fired" into the plant cells using a pneumatic gun. There are plant enzymes that become activated in response to the mechanical trauma to the cell and some of those enzymes can pick up DNA fragments and insert them into the nucleus. DNA repair enzymes will find the DNA fragments, and because of the transposon components, will insert the entire piece of DNA into the plant genome.Usually this is done to plant tissue cultures. Because this is an inexact process, many plant tissue culture "colonies" will be bombarded with the gold particles "laced" with DNA and scientists will screen the cultures for one or more that had a successful insertion.
What did early scientists classify sponges as?
a plant
How do a scientists classify a vascular plant with no seeds?
its leaves
Is seaweed is a plant?
Some scientists classify seaweed as plants, and some classify seaweed as protists.
How do scientists classify a vacular plant with no seed?
Pterophyta ( Ferns ) is one phylum. A vascular seedles plant.
What characteristic allowed scientists to definitively classify the sea anemone as an animal rather than a plant?
Sea anemone do not have cell walls.
Which plant parts do scientists use to classify plants?
Mainly floral parts.
How can you classify into 2 groups a pecten fossil fern fossil petrified tree and a dinosaur footprint trace?
plant and anamels
Scientists today divide plants into two large groupsd basedv on?
scientists today divide plants into two large groups based onwhat are the two large groups of plants Edited answer: Based on vasculature, the plant kingdom is divided into- 1. Vascular and 2. Non-vascular plants.
Are protists easy to classify?
Somewhat, there are three groups: Plant-like, Animal-like, and fungus-like. Protists are basically the leftovers.
Why do scientist classify living things?
To be able to study all the living things in our universe, we need a way to group or classify them together. Scientists divided all things into living and non-living. Then they divided those (e.g. animal kindom and plant kingdom, then continued dividing them on how the items were seimilar or dissimilar).
Why do scientists classify a sponge as a simple animal and not a plant?
because they have chlorophyll eat and long ago people thought they are animals not plants
Why have algae pestered scientists for a long time?
Because scientists and algae dont mix. Also becaust alge doesnt really have a group (animal, plant etc) so they can't classify it, which annoys them.
