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Sergio [31]
3 years ago
8

What are 'pneumatopores' ?? how do they help the plant ? ? give an eg.

Biology
2 answers:
Mashcka [7]3 years ago
7 0
Pneumatopores specialized 'breathing' root developed in some plant species that grow in waterlogged or strongly compacted soils, e.g-mangroves. The aerial part of the root contains many pores, enabling gas exchanges with the atmostphere. Internally, a well developed system of incellular spaces allows gases to diffuse throughout the submerged portion of the roots
hoa [83]3 years ago
7 0
Neumatophores<span> are erect roots that are some form of upward appendage or extension of  the root system </span>can<span> obtain oxygen in an otherwise anaerobic substrate </span>They<span> also </span>help in aeration. eg <span>red mangrove,swampy plants</span>:
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_______ is a macromolecule that holds cell information in a coded form. Made of sugar
Amiraneli [1.4K]

Answer:

Nucleic Acids

Explanation:

Nucleic acids are made out of nucleotides and they come in two forms: Deoxyribonucleic Acid (DNA) and Ribonucleic Acid (RNA). DNA holds the code of life, in other words, it holds the code for making proteins that are essential in building cells, tissues, and organs. DNA is found in the nucleus of a cell.

4 0
3 years ago
How does cystic fibrosis affect meiosis?
Anna007 [38]

Answer:

The defective CFTR protein changes ion influx and efflux across the body's cell membranes, which ultimately changes the internal environment of these cells. This change contributes to each cell's production of proteins through transcription and translation.

Explanation:

The defective CFTR protein changes ion influx and efflux across the body's cell membranes, which ultimately changes the internal environment of these cells. This change contributes to each cell's production of proteins through transcription and translation.

8 0
3 years ago
You cross two true-breeding parents (one with yellow seeds and one with green seeds), grow and self-pollinate the F1 generation,
Andru [333]

Answer:

1500

Explanation:

Let's assume that the allele for yellow seed color is "Y" and the allele for green seed color is "y". Genotype of pure breeding yellow seeded plant would be "YY" and that of the green seeded plant would be "yy". A cross between YY and yy gives all heterozygous yellow seeded plants (Yy) in F1 progeny. Self pollination of two F1 plants (Yy x Yy) obtains F2 generation in 3 yellow: 1 green ratio.

The total population size of F2 generation = 2000

The proportion of yellow seeded plants in F2 generation = 3/4 (since the F2 phenotype ratio is given 3 yellow: 1 green)

Therefore, total number of yellow seeded plants in F2 progeny = 3/4 x 2000= 1500

3 0
3 years ago
In some parts of the world, rain forests are being cut down to make land available for homes, businesses, and farms. How does th
zloy xaker [14]

Well the more that get cut down, the less oxygen we get, aswell as more carbon in the atmosphere because there is less trees to absorb it.

7 0
3 years ago
There are very few minerals that are useful for humans begins<br><br> .true<br><br> .false
Dafna11 [192]

Answer:

false

Explanation:

because there are many minerals such as gold

3 0
2 years ago
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