Science, asked by itzaleem9, 1 month ago

4. Substitute the following definitions for their one word answers: a. A double layered membranous sac which encloses the heart. b. Blood vessels which connect arteries to veins. c. Tiny openings on the tree bark with intercellular spaces which help in exchange of gases.​

Answers

Answered by padavalasuneetha
0

Answer:

  1. pericardium
  2. capillaries
  3. lenticels

Explanation:

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Answered by janani5678
0

Explanation:

a) pericardium

b) cappilaries

c) lenticles

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