Page 103 - PRACTICE EXAMS FOR YDT

YDT/İNG

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A) Spring flowers do not always have brightly
Flowers have developed various mechanisms to coloured petals as colour can vary between
detect the arrival of spring, such as changes in different species and individual flowers.
temperature, daylight duration, and precipitation.
These clues are perceived by specialised cells, B) While spring flowers can tolerate cold weather
which then send signals to the plant’s internal better than some other plants, they are not the
o o as t e r ad a r t . o ers t only ones capable of doing so.
controls a variety of biological processes, including
o er t e. s t e da s e o e o er a d C) Spring flowers typically rely on the circadian
the temperatures get warmer, the circadian rhythm to regulate the timing of their flowering
r t o ers s reset aus t e rodu t o in response to environmental clues such as
o or o es t at ro ote o er deve o e t. temperature and light.
dd t o a erta o ers are a so ue ed D) Even though changes in temperature and light
by environmental factors such as the presence can affect spring flowers, they have no effect
o o ators a d s e so o d t o s on their growth or flowering patterns.
can also signal the start of the growing season.
T e rodu t o o o ers s orta t or a a t s E) Although certain types of spring flowers may
reproductive success, as it allows for pollination blossom at a consistent time annually, this
and the eventual production of seeds. The timing is not the case for all species and can vary
o o er a a so a t t e tera t o s depending on environmental factors.
between plants and their surrounding ecosystem,
including the availability of resources for other
species such as insects and birds. Overall, the
dete t o o s r o ers s a o e ro ess
that involves intricate biological mechanisms and
environmental cues.

A) How Flowers Sense the Arrival of Spring

B) The Magic of Spring for Flowers

---- C) The Wonders of Springtime Flowering
A) is not involved in the process of pollination
D) The Impact of Weather on Plant Growth
B) only acts as a simple timekeeper for the plant
E) Adaptation Strategies of Flowers to
C) governs the timing of petal formation solely Environmental Changes

D) responds primarily to light and dark cycles in
controlling flowering time
E) regulates physiological processes in flowers,
including the timing of flowering

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