Question

1. In this question, assume that the life cycle of a flowering plant begins with the germination of a seed and ends with the development of a fruit. Two events that occur in the life cycle are formation of a pollen tube and pollination.

What would be the sequence in which they occur?

Group of answer choices

Both events occur more or less simultaneously.

Formation of a pollen tube precedes pollination.

pollination precedes the formation of a pollen tube

2. Flowers in the first angiosperms likely possessed which of the following features?

Select all that apply.

Group of answer choices

Reduced number of flower parts

Undifferentiated sepals and petals

Elongated receptacle

Bilateral symmetry

Numerous flower parts

3. When you eat a fruit like an apple, what are you consuming?

Group of answer choices

Sporophytic tissue composed of diploid cells

Both sporophytic and gametophytic tissue

Gametophytic tissue composed of diploid cells

4. Pick all the relevant statements regarding 'herbarium'.

Group of answer choices

includes a collection of fungi and mosses only

a library or museum that stores the voucher specimens

a scientifically prepared voucher specimen usually affixed on a rag paper

a plant press that dries the plant specimens

5. In seedless vascular plants, problem with which of the following structures could prevent zygote formation? Select all that apply.

Group of answer choices

peristome

archegonium

embryo

operculum

antheridium

Answer 1

Ans :-1) option c. Pollination precedes the formation of a pollen tube.

The process of transfer of pollen grain from anther to the stigma of a flower is called pollination.

When the pollen grain lands on the stigma of a flower of correct species,a pollen tube begins to grow. It grows throughout the style until it reaches the ovule inside the ovary.

Only a single pollen tube emerges from the pollen grain that contains pollen nuclei.