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What are Herbicide tolerant crops in ecological
Herbicide tolerant crops (HTC) Ecological
a) Increased use of the herbicides that plant is tolerant to (describes ecological impact eg toxic residues in soil, run-off into waterways).
b) There may also be a decrease in use of other herbicides (benefit to environment eg more diversity of plants).
c) Weed resistance may lead to increase in use of other more toxic herbicides (describes ecological impact).
d) HTC plants could become weeds in subsequent crops as they become more difficult to eradicate.
e) less competition for the crop plant as the farmer can spray herbicide at anytime over crop.
How are the bacteria and the archaea different from all the other cellular microbes? -They have cell walls? -They can move? -They reproduce asexually? -They have no nucleus?
EVIDENC E IN FAVOUR OF THE MUTATION THOERY - Mutation theory can explain both progressive and retrogressive evolution and the occurrence of both changed and unchanged forms.
Q. Do plants have tissue organization and specialized organs? Plants have specialized organs (like roots, limbs, reproductive organs, leaves) and differentiated tissues (suppor
What is Passive Transport? Passive Transport : Specialized proteins called permeases also move specific substances across the cell membrane in a process called carrier transp
What is the main theory opposed to evolution? The major theory that opposes the evolution theory on the description of how species emerged (phylogenesis) is fixism.
The Different systems of the body are: 1) Nervous System 2) Respiratory System 3) Cardiovascular System 4) Neurological and Sensory System 5) Gastrointestinal Syste
Annuloplasty with a Ring : The lings commonly used are Carpentier- Edwards and Cosgrove's flexible half ring. The rings are C shaped and have incomplete circles to accommoda
In an investigation to compare the rates at which starch is being broken down by an enzyme (a) what test is used (b) how do you know when the reaction
PROVIDE a specific example for epithelial and connective tissues, how the arrangement of cells helps with tissue functioning?
Explain Procambium in primary growth in shoot ? The vascular tissue in the shoot is produced from a primary tissue called the procambium, located in the apical meristem. New vas
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