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Plant Biology

Find an angiosperm that has modified roots

1]. Find an angiosperm that has modified roots 2]. Explain how this structural modification helped the plant adapt to its environment Angiosperms (flowering plants) are the largest Phylum in the Plant Kingdom (Angiospermophyta is also called Anthophyta or Magnoliophyta). These plants have true roots, stems, leaves and fl

Living species around you

Start by observing the living species around you. Ever wonder why a pollinator is attracted to a particular flower, or what would happen to predator species if a particular prey species is eliminated? If you were a scientist you could do an experiment to answer your question. For this assignment, choose two non-human species

Does the direction of sunlight affect phototrophic movements?

Start by observing the living species around you. Ever wonder why a pollinator is attracted to a particular flower, or what would happen to predator species if a particular prey species is eliminated? If you were a scientist you could do an experiment to answer your question. For this assignment, choose two non-human species

Identical plots with annual wildflowers in both plots.

During a study on desert plants the scientist had 2 identical plots with annual wildflowers in both plots. One plot was enclosed to keep out herbivores such as the kangaroo rat. After 2 years 4 of the wildflower species disappeared and 1 species of wildflowers increase significantly. The unprotected plot did not change. What

Adaptive Advantage of Antheridia and Archegonia

What is the adaptive advantage of antheridia maturing at a different time than the archegonia within the same gametophyte? Am I correct is thinking it is to protect the female gametophyte from environmental stress?

Absorption Spectrum of Photosynthetic Pigments

I am confused about the concept of absorption spectrum of spinach pigments. I am looking for the visible spectrum of four main pigments in spinach. But what should I expect from each pigment? And why? I am supposed to examine chlorophyll a, chlorophyll b, carotene and xanthrophylls.

Heliotropism and Sleep Movements in Plants

Why have so many plants developed broad, flattened leaves? What is heliotropism, and how does it make plants more efficient? What are sleep movements? Describe the model for leaf orientation in the upper, middle, and lower levels of a leaf canopy

Fungi: Mycorrhizae

1. Why do mosses and ferns both require free water to complete their life cycles? At what stage of the life cycle is the water required? Do angiosperms also require water to complete their life cycles? What are the reasons for the difference? 2. How are cells of a liverwort supplied with water? 3. Flowering plants evolved s

Biology questions involving Mosses

1. If you were looking for mosses, what are some of the characteristics of the habitats in which you would take? Explain your answer based on your knowledge of bryophyte life history. 2. Compare and contrast the alternation of generations in mosses, ferns and pines. Which generation is dominant in each case? Is it haploid or

Role of Chlorophyta in evolution of multicellular forms

1. What is the evolutionary significance of the Chlorophyta? Why is Chlamydomonas an important member of this group? 2.Describe and give examples of two separate paths by which multicellular organisms evolved from unicellular organisms. 3.Would you classify the Prostists as chemotrophs or phototrophs. Explain you answer.

30 Multiple Choice Biology Questions

Question 1 Plant leaves appear green because they ____ light spectrum. a. Scatter all colors except the green portion of the visible. b. Scatter the green portion of the visible. c. Absorb the green portion of the visible. d. Scatter the green portion of the ultraviolet. Question 2

Aspen Trees

Stands of aspen trees often are a series of genetically identical individuals, with each succeeding tree growing from the severed shoot of another tree. Using what you've learned of genetics would you expect one aspen tree in a stand to differ greatly from another in its phenotype? Would you expect each to look exactly like the

Bananas Produced Through "Cuttings"

All the bananas we eat come from trees that are produced through "cuttings"? A stem from an existing tree is planted in the ground, resulting in a new tree. Thus, each tree is a clone of another. Explain in 200 words why would growers find it advantageous to produce an enormous series of identical clones, rather than using trees

What effect would increased carbon dioxide have on plants?

One of the most dramatic environmental changes today is the increase in carbon-dioxide levels in the atmosphere. We usually hear about it in connection with global warming, but that's not the only issue. What effect would increased carbon dioxide have on plants? If more trees are planted, would this stand to have any effect on a

Cells & Plant Seed Characteristics

Please help with the following problem. List the main reason why a cell is forced to divide due to cell growth. If a tall round seed plant is crossed with another plant. From the following information provided. Tall dominate, round dominant, and both are heterozygous. Draw the Punnett Square showing the first generation.

Cellular Respiration and Photosynthesis

Cellular respiration and photosynthesis co-exist as paired processes. Photosynthesis converts light energy into organic molecules such as carbohydrates. These molecules are picked up and utilized as fuel sources in organisms that employ cellular respiration for production of ATP and CO2. 1. Create a table comparing and contr

Photosynthesis

Observing Oxygen Evolution During Photosynthesis. See attached file for full problem description.

Discussion of modified leaves, stems, roots, flowers

Angiosperms (flowering plants) are the largest Phylum in the plant kingdom (Angiospermophyta is also called Anthophyta or Magnoliophyta). These plants have true roots, stems, leaves and flowers. The roots grow into the soil to anchor the plant in place and take up water and nutrients. The leaves are above ground and act as t

Biology 3-4

Please give detailed answers. 3. Charles Darwin once described a flower that produced nectar at the bottom of a tube 25 centimeters (10.5 inches) deep. He predicated that there must be a moth or other animal with a 25-centimeters-long tongue to match, and he was right. Such specilization almost certainly means that this pa

Biology 1-2

Please provide detailed explanations. 1. The desert tends to have two catagories of plants: small grasses of herbs, and shrubs or small trees. The grasses and herbs typically have fibrous roots. The shrubs and trees have taproots. What advantages can you think of for each type of root? How does each type of root allow f

Photosynthesis and Respiration

Cellular Respiration and Photosynthesis co-exist as paired processes. Photosynthesis converts light energy into organic molecules such as carbohydrates. These molecules are picked up and utilized as fuel sources in organisms that employ Cellular Respiration for production of ATP and CO2. Although it appears that Photosynthesi

Cellular Respiration and Photosynthesis

See attachment for diagram. Cellular Respiration and Photosynthesis co-exist as paired processes. Photosynthesis converts light energy into organic molecules such as carbohydrates. These molecules are picked up and utilized as fuel sources in organisms that employ Cellular Respiration for production of ATP and CO2. Altho

Plant Characteristics Multiple Choice

PLANTS -All modern plants are probably descendants of A. Fungi Green algae Club mosses Horsetails -Protists include A. Ferns Gymnosperms Angiosperms Green algae -An adaptation of land plants that inhibits water loss is the A. cell wall chloroplast cuticle vascular tissue

Plant Biology: Identification and Function

Please view the attached file. 1. Is this plant a member of coniferophyta? 2. Provide the physiological and structural characteristics that allow the specimen collected to be classified as the represented phylum. 3. Discuss how this organism obtains and transports water 4. Discuss the acquisition and transportation of nutr

A Plant's Response to Gravity

According to the statolith hypothesis the cells farther away from the earth elongate while those near the earth do not. true or false and why?