Answer:
Hope this is helpful! Sorry if my answer is choppy.
Explanation:
Biotic and abiotic features are both important in ecosystems because for example, a biotic factor like a plant, relies on an abiotic factors like the rain and the sun. If the rain were non existent, then the plants would no longer be alive causing a chain reaction in the food system. Biotic factors like plants and animals that are non existent can also cause negative effects in biomes and ecosystems.
The extracellular glucose inhibit transcription of the lac operon (D) by reducing the levels of intracellular cAMP.
Lac operon is the assembly of various genes that are involved in the uptake and metabolism of lactose of E. coli or any other bacteria. It consists of a regulator gene, promoter gene, operator and structural gene. Structural genes are three: z, y and a. Each codes for a different enzyme.
cAMP is the cyclic Adenosine Monophosphate. It is produced by the bacteria when there are low levels of glucose in it. Hence it is also named as hunger signals. Therefore, cAMP is responsible for activating the operon to produce lactose.
To know more about cAMP, here
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A nephron<span> is the basic unit of the kidneys and one of its functions is to filter substances in the blood and excreting urine. The correct order of where urine flows in a nephron is: </span><span>glomerulus, next to proximal convoluted tubule, then to loop of henle, then to distal convoluted tubule, lastly collecting duct. This process is important in homeostasis.</span>
Answer:
b) The nuclear envelope is continuous with the Golgi apparatus.
Explanation:
The nuclear envelope is a nuclear membrane composed of two lipid bilayers: inner and outer membrane and perinuclear space between them. Its outer membrane is continuous with the endoplasmic reticulum. Nuclear pores that are part of this envelope allow the movement of molecules in and from the nucleus (e.g. mRNA formed during transcription should be transported into cytosol through the pores).
<span>DNA evidence does equate to innocence or guilt. FALSE.</span>
