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aev [14]
4 years ago
6

What role did mycorrhizae play in the transition of plants to land?

Biology
1 answer:
Colt1911 [192]4 years ago
5 0
Mycorrhizae are associations between fungi and the roots of plants, where the Fungi provides minerals to the plant. It enabled plants and fungi to be the first organisms to invade land successfully 430 million years ago. In most cases the relationship between host plants and the mycorrhizal fungus is mutualistic, or mutually beneficial. The Mycorrhizal fungi come into direct contact with plant roots and with the soil, adding to the plants ability to gather nutrients and water from the soil through the fungus. 
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4 years ago
Define gas exchange and distinguish between a respiratory medium and a respiratory surface
algol13

Answer: Hope this helps

GAS EXCHANGE: the intake of Oxygen and the expulsion of Carbon dioxide. In the capillaries of the alveoli, oxygen travels due to the concentration gradient into those capillaries. Carbon dioxide is then expelled from those capillaries.  

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5 0
4 years ago
B b b Bb bb b Bb bb In people, brown hair (B) is dominant over red hair (b). If a husband is Bb and his wife is bb, what is the
NARA [144]

Answer:

A. 50%

Explanation:

Using Gregor Mendel's genetics cross, the probability of obtaining brown hair is 50% or 2/4. In Gregor Mendel's genetics cross, the dominant gene represented as Bb is crossed against the recessive, bb. On completing the cross, the products of the cross are two dorminant gene (brown hair) with a trait of red hair and the recessive gene will not be expressed, while the two remaining products are recessive, bb and therefore the recessive gene for red hair will be expressed.

3 0
3 years ago
Which group of macromolecules includes triglycerides waxes and cholesterol?
Mkey [24]

Answer:

Carbohydrates, Nucleic acids, Proteins, and Lipids

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Explanation:

8 0
3 years ago
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