In vascular plant, Xylem is one of the two tissue involve in transport water from roots to stems and leaves and also transports nutrients.
Two types of cells of this tissue are tracheids and vessel elements which are involved in transport.
<h3>What is the function of xylem ?</h3>
Xylem and phloem are known are two major vascular tissue.
Xylem tissue involve in transport of water and some nutrients from the roots to the leaves.
Phloem tissue involve transport of sucrose and other nutrients throughout the plant.
The passive transport called xylem sap occur through a long tube xylem cells.
The phenomenon where the xylem sap allow the flow upwards against gravity is called capillary action.
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A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Hope I’ve helped ;)
Answer:
d.Different sets of genes.
Explanation:
A cell normally only expresses a percentage of its genes and various cell types are created by the expression of distinct gene sets. In addition, in response to changes in their environment, cells can alter the pattern of genes they express, such as signaling from neighboring cells.
Answer:
C
Explanation:
heterotrophic oragnisms gain energy from other oragnisms and need to break down complex organic molocules to release energy.
The answer is protein; allele. The protein melanin is specially produced by
cells called melanocytes. Melanin is
critical in protecting against UV radiation from the sun that would cause
damage to DNA and cause skin cancer. Being autosomal recessive for both alleles of the gene causes albinism.
