Eustachian valve occur in –

• A) Connection between middle ear and pharynx
• B) Middle ear
• C) Left ventricle of heart
• D) Right Auricle of heart

Which of the following is a component of ETS in mitochondria?

• A. Phytochrome
• B. Plastocyanin
• C. Cytochrome oxidase
• D. Carotenoids

Which of the following is an example of a producer?

• A) Sun
• B) Fern
• C) Chestnut
• D) Ant

Which of the following is an incorrect match for chlorophyll type?

• A. Chlorophyll a- green algae
• B. Chlorophyll d- diatoms
• C. Chlorophyll c- diatoms and brown algae
• D. Chlorophyll d- Red algae

Which of the following is an r-strategist?

• A) Human
• B) Insect
• C) Rhinoceros
• D) Whale

Which of the following is correct about a flower? It is a modified

• (a) Root
• (b) Shoot
• (c) Leaf
• (d) Inflorescence