Question

1. A flower of a squash contains sepals, petals, pistils and no stamens.

Pick any two terminologies that would describe this flower.

Group of answer choices

Bisexual

Irregular

Complete

Unisexual

Incomplete

2. Match each step in the development of a female gametophyte of an angiosperm to the changes that occur.

Group of answer choices:

Megaspore mothercell undergoes mitosis

Megaspore divides by mitosis three times           

Megaspore mother cell undergoes meiosis           

Nuclei rearrange inside a 7-celled embryosac           

Megaspore divides by meiosis           

Three out of four haploid cells degenerate      

Step 1     

Step 2  

Step 3     

Step 4

3. Conifer resins are a source of which of the following? Pick all that apply.

Group of answer choices

Turpentine

Rosin

Coal

chemotherapy drug

Amber

4. Match each of the following plants with the most relevant statement given in the pull down choices.

Group of answer choices:

Vine-like woody plants            Source of most pulpwood and paper            Source of a drug used in cancer treatments            Longest living plants on earth            Seeds are eaten as food in the orient      

Ginkgo

Bristlecone pine

White spruce

5. One feature that is unique to the pine needles when compared to angiosperm leaves, is the presence of which of the following?

Group of answer choices

Endodermis

Sunken stomata

Hypodermis

Vascular bundles

Epidermis

Gnetum

Answer 1

1.Incomplete and unisexual

Incomplete because it don't have four whorls(stamens are absent)

Unisexual because it don't have male part(stamens).

2)3rd and 4th statements are true.

Megaspore mother cell(2n) undergoes meiosis and forms haploid cells-mega spores(ovules)      

Nuclei rearrange inside a 7-celled embryosac (3 antipodal cells,1 central cell and 3 synergid cell).

3)Turpentine and rosin

4)Vine-like woody plants -Seeds are eaten as food in the orient

   Ginkgo                 -Source of a drug used in cancer treatments     

   Bristlecone pine   -longest living plants on earth

   White spruce       - Source of most pulpwood and paper  

5)

Endodermis and hypodermis