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sveta [45]
3 years ago
11

Roses and lillies are

Biology
2 answers:
Vesna [10]3 years ago
7 0

Answer:

Roses and lilies are seed-producing, flowering plants, hence, these plants are angiosperms. Presence of flowers is the major characteristics of angiosperms, in which male and female reproductive organs are present.

Svetlanka [38]3 years ago
4 0

Answer:

Rosaceae

Explanation:

flowers have families and both roses and lollies are in the family Rosacea

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Why are advantageous traits more likely to be passed onto offspring
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Answer: Variations of traits causes those better suited to the environment to survive and reproduce. ... Why are advantageous traits more likely to be passed onto offspring? Because they are more likely to survive and reproduce.

Explanation:

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2 years ago
You discover a large, green, multicellular, autotrophic organism living on the bank of a creek. upon microscopic examination, yo
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The answer is eukarya. While Eukarya, Archaea, and Eubacteria may share some similarities, the most distinctive feature of eukarya is the presence of a membrane-bound nucleus containing the cell's genetic information. This diverse group includes plants, animals, fungi, and protists (unicellular organisms).
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3 years ago
Design an experiment to answer the question, what is the effect of caffeine on the rate of mitosis in frog eggs? Label: hypothes
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Answer:

Explanation:

Null Hypothesis: Their will be no effect of the caffeine on the mitosis.

Hypothesis: Caffeine will inhibit the SHSY5Y cell division.

Dependent variable: Various concentration of the caffein compound.

Independent Variable: temperatures of the experimental condition. If their will be any effect of the temperature in mitosis then it will also affect the mitosis of control cells.

Experimental design.

Culture SHSY5Y neuronal cell line in the T-75 culture flask in CO2 incubator at 37 degree celsius. Next day, add cells from T-75 flask in the 24 well plate and allow cells to adhere to the well by incubating plate in CO2 incubator at 37 degree celsius. Add the compound caffeine at different concentration (say 1 microgram, 2 microgram, 3 microgram, 4 microgram) and incubate the plate for 24 hour. Determine the mitotic cells by following assay.

Assay to determine mitotic cell.

The reagent succinimidyl ester of carboxyfluorescein diacetate (CFSE) binds to cytoplasmic proteins. it is fluroscent reagent. And when cell divide due to mitosis, cytoplasm will also divide and hence, the protein which stained with the CFSE reagent will also goes in the daughter cell. Then, the fluorescence of the stained cells can be read on the plate reader.

Prepare the graph of the fluorescence values (Y-axis) verses different concentrations of the caffein (X-axis) and determine the slop of curve to know the rate of mitosis.<u> </u>

<u>Following test and control samples will be used for the assay.</u>

1. SHSY5Y cell line with added caffeine. It is test sample.

2. SHSY5Y cell line added with buffer. This important to know behaviour of cells under experimental conditions.

3. SHSY5Y cell line with solvent used to dissolve compound caffeine. It is important to know the toxicity or any effect of solvent on the mitosis.

5 0
3 years ago
When a rat's ventromedial nucleus is destroyed, the rat will:
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The correct answer is C. It continues to eat the amount of food it does normally.


When rat's ventromedial nucleus is destroyed the rat will become more hyper physics and it continues to eat until it has doubled its normal weight.

Ventromedial nucleus of hypothalamus is termed as nucleus of hypothalamus.

It is a distinct morphological nucleus which involved in terminating hunger, fear, sexual activity and thermoregulation.

Ventromedial nucleus of hypothalamus is divided into subdivisions. For example, dorsomedial, ventrolateral, central and anterior. VMN is most commonly associated with satiety. In rats ventromedial nucleus is caused by over-eating and obesity.

7 0
3 years ago
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Which of the following occurs when substances undergo chemical changes?
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<span>Bonds between atoms are broken and new bonds are formed.</span>
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