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Gwar [14]
2 years ago
11

A botanist has discovered a new plant species and is trying to classify the plant. Its seed has one cotyledon, it has six flower

parts, its leaves have parallel veins, its stem is herbaceous, and the vascular bundles in its stem are scattered throughout the stem. Which best classifies this plant?
gymnosperm and dicot
gymnosperm and monocot
angiosperm and monocot
angiosperm and dicot
Biology
2 answers:
Murljashka [212]2 years ago
8 0

Answer:

Angiosperm and monocot

Explanation:

Gymnosperms:

These are the type of plants which does not contain flowers and produces cones in which seeds are present. While

Angiosperms:

These are the plants that have a distinct feature of producing flowers. These flowers further after fertilization develop into fruits.

Hence the discovered new plant belongs to angiosperm because of its flower.

Monocot:  

These are the seed type in which only single cotyledon is present.

Dicot:

These are the seed type in which two cotyledons are present like in peanut.  

Hence the discovered new plant belongs to Monocot because of its single cotyledon.

Correct Choice:

Angiosperm and monocot

olga nikolaevna [1]2 years ago
6 0

Answer:

Angiosperm and monocot

Explanation:

commonly referred to as monocots, (Lilianae sensu Chase & Reveal) are flowering plants (angiosperms), the seeds of which typically contain only one embryonic leaf, or cotyledon. They constitute one of the major groups into which the flowering plants have traditionally been divided, the rest of the flowering plants having two cotyledons and therefore classified as dicotyledons, or dicots. However, molecular phylogenetic research has shown that while the monocots form a monophyletic group or clade (comprising all the descendants of a common ancestor), the dicotyledons do not. Monocotyledons have almost always been recognized as a group, but with various taxonomic ranks and under several different names. The APG III system of 2009 recognises a clade called "monocots" but does not assign it to a taxonomic rank.

The monocotyledons include about 60,000 species. The largest family in this group (and in the flowering plants as a whole) by number of species are the orchids (family Orchidaceae), with more than 20,000 species. About half as many species belong to the true grasses (Poaceae), which are economically the most important family of monocotyledons. In agriculture the majority of the biomass produced comes from monocotyledons. These include not only major grains (rice, wheat, maize, etc.), but also forage grasses, sugar cane, and the bamboos. Economically important monocotyledon crops include various palms (Arecaceae), bananas and plantains (Musaceae), gingers and their relatives, turmeric and cardamom (Zingiberaceae), asparagus (Asparagaceae), pineapple (Bromeliaceae), water chestnut (Cyperaceae), and leeks, onion and garlic (Amaryllidaceae). Many houseplants are monocotyledon epiphytes. Additionally most of the horticultural bulbs, plants cultivated for their blooms, such as lilies, daffodils, irises, amaryllis, cannas, bluebells and tulips, are monocotyledons

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For Heliodorus, having four arm-like extensions is dominant over having two. In a family of Heliodorus, Hayden has four arm-like
IRISSAK [1]

Answer:

Hayden- heterozygous dominant

Mother (Helen)- heterozygous dominant

Father (Harry)- homozygous recessive

Sister (Holly)- homozygous recessive

Explanation:

This is a genetic scenario involving a single gene coding for number of arm-like extensions in Heliodors family. According to the question, the allele for four arm extensions (A) is dominant over thr allele for two arm extensions (a). The question also states that Hayden and his mother have four arm extensions while his sister (Helen) and Father (Harry) have two arm extensions.

Firstly, it is worth it to note that Harry and Holly will be genotypically homozygous recessive (aa) because a recessive trait will only be expressed in a homozygous state, since two arm extensions is the recessive trait.

Now, since father is homozygous recessive, he will produce gametes that contains only "a" allele. If the mother were homozygous dominant (AA), no recessive offspring should be produced because all the offsprings wil phenotypically have four arm extensions. But one has two (recessive) which is the sister (Holly). This is because, although, the mother phenotypically has four, but is genotypically heterozygous dominant (Aa). Hence, it can produce A and a allele in gamete formation. Therefore, Helen has heterozygous dominant (Aa).

Lastly, Hayden also has four arm extensions, hence dominant. But since Aa genotype and aa genotype from Helen and Harry respectively, came together, no homozygous dominant offspring can be produced. This tells us that Hayden must be a heterozygous dominant.

4 0
2 years ago
When humans dig-up fossil fuels and burn them to power the modern world, carbon flows between which two reservoirs of the carbon
Luda [366]

Answer:

B

Explanation:

When humans dig-up fossil fuels and burn them to power the modern world, <u>carbon flows between the Geosphere/lithosphere and the atmosphere.</u>

Both the geosphere and the atmosphere represent important reservoirs of carbon. The digging-up of fossil fuels, otherwise known as exploration, is carried out in the geosphere or the lithosphere part of the earth. For example, crude oil is obtained deep from the ground. When the fuels are burned, they release carbon in the form of carbon dioxide into the atmosphere.

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The correct option is B.

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Hence, in this case, the ovarian cells would have a large number of SER.

4 0
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A forest has two groups of plants that appear to be very similar both phenotypically and genotypically. The major difference is
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Make sure to repeat this a few times, or have a number of plants to make sure your results are accurate. 
Or if you couldn't do the controlled environment thing, just keep some pollen one year and use it to fertilise the other group. 
I'd also put a hypothesis in there somewhere too. 
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