A cross-sectional view of a log shows a concentric pattern. Which part of the stem gives rise to this pattern? A. Phloem

2 answers:

7 0

<span>A cross-sectional view of a log shows a concentric pattern. Which part of the stem gives rise to this pattern?
B. Xylem
as it </span><span>contribute for most of a tree's growth in diameter.</span>

slega [8]3 years ago

4 0

The part of the stem that gives rise to this pattern is : B. xylem

xylem is responsible in transporting water and nutrients. It die after a year or so and will leave the concentric pattern as it die

hope this helps

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Basile [38]

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What are the four important conditions of a respiratory surface

Ksivusya [100]

The four important characteristics of respiratory surface are:

1. Thin walls

2. Moisture

3. Large surface area

4. Blood supply

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Systemic fungal infections (e.g. Candida and Cryptococcus) and tuberculosis (Mycobacterium) are on the rise. One of the reasons

miss Akunina [59]

Answer:

a) the molecules can be found in the picture below

b) (i) isocitrate lyase ( isocitrate to glyoxylate)

(ii) malate synthase (glyoxylate to malate)

c) Glyoxylate cycle do no exist in animals

Explanation:

b) in the glyoxylate cycle isocitrate lyase helps in conversion of isocitrate to glyoxylate. Also, helps in conversion of glyoxylate to malate by using malate synthase.

c) Glyoxylate cycle do no exist in animals, it only exist in plants and bacteria. This is because they can produce glucose from acetyl-CoA in required amounts.They have the ability to change acetyl-CoA from fat into glucose. But in animals, this mechanism is not possible.