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icang [17]
3 years ago
5

What is the xylem? And what is the function of the xylem for grade 8's? (Please make it simplified)

Biology
1 answer:
ivolga24 [154]3 years ago
8 0
The main function of xylem is to transport water, and some soluble nutrients including minerals and inorganic ions, upwards from the roots to the rest of the plant. Xylem cells form long tubes that transport materials, and the mixture of water and nutrients that flows through the xylem cells is called xylem sap.
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Genetic drift and natural selection can both be mechanisms of evolution. However, they are very different mechanisms.
Lina20 [59]

Answer:

The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success

Explanation:

Hope this helps

PLEASE MARK AS BRAINLIEST !!!

3 0
3 years ago
What is a secure chemical landfill? A. a landfill in an area of nonporous bedrock B. a biological treatment plant for liquid was
natima [27]

The correct answer is option A, that is, a landfill in the region of nonporous bedrock.  

A permanent waste disposal facility where the wastes are put into the ground and covered with a layer of plastic, soil, or both is known a landfill. A secure chemical landfill refers to a landfill developed in the region of nonporous bedrock.

A secure chemical landfill is a prudently engineered depression in the ground or constructed on the top of the ground, signifying a football stadium into which wastes are dumped. The objective is to inhibit any water-related or hydraulic association between the surrounding environment and the wastes, mainly groundwater.  


6 0
3 years ago
What stimulates cell division?
Gala2k [10]
Metabolic pathways stimulate cell division.
5 0
3 years ago
Read 2 more answers
A plant with dark-purple flowers and a plant with white flowers are crossed. All of the offspring have lavender flowers. The all
dimaraw [331]
I believe the answer is incomplete dominance. Incomplete dominance creates a mix of the two phenotype(white and dark purple flowers) to create a third phenotype (lavender). Lavender is a mix.

Whereas, co-dominance would not be a mix but both traits would exist within the organism. In your question, it would be codominance if the dark purple flower and the white flower created a flower with white and dark flower pedals. This would not be a mix of the phenotype, but a co-existance of both phenotype.

I hope that helps! :D
5 0
3 years ago
Read 2 more answers
what is the characteristic of a cell membrane that controls which substances can enter and exit the cell
lorasvet [3.4K]

Answer:

selective permeability

Explanation:

The property or characteristic of cellular membrane to allow certain substances to pass through the cell is known as selective permeability. The movement of molecules and ions across the cell can be active or passive.

3 0
3 years ago
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