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How does the presence of algae indicate either pollution or productivity of a body of water
In a microbiology lab experiment, 2 different E. coli strains as a well as a untreated water sample were plated on an nutrient agar dish using aseptic techniques.
Determine whether the following statements are true or false. If false you must give a simple reason explaining why.
In the table below, predict (yes or no) whether or not the E. coli lac operon will be transcriptionally active in the presence or absence of glucose or lactose as indicated and respond to questions "a
Human cells normally have 46 chromosomes. For each of the following stages, state the number of chromosomes and/or chromatids present in a single human cell.
Red-green color blindness is a sex-linked recessive trait. Two parents, Fred and Ginger, have normal vision. They have two daughters,
If the centrioles are mispositioned in the cell, a functional mitotic spindle will fail to form. In this situation, how will chromosome segregation be affected?
You eat a cheeseburger and a fresh salad. Which of the following molecules in your food are NOT normally oxidized in aerobic respiration to generate ATP
Are they any experiments which have been done to support the pressure flow hypothesis in the translocation of substances in angiosperms? may you inform me of how they were carried out
The biceps brachii is connected to the scapula by collagenous fibers of the epimysium called the _____, and this attachment represents the _____ of the biceps brachii.
Explain how the ecosystem was affected by the missing species for each round of the demonstration.
1. Many primates have opposability in their big toe in addition to their thumbs. How do you think your daily life would be impacted if Homo sapiens had opposability in their big toes?
A middle-aged man comes in because he has noticed multiple small, blood-red, raised lesions over his anterior chest and abdomen for the past several months.
Cystic fibrosis is a recessive disorder (C = no disease, c = disease). Two carriers (heterozygotes) marry. What is the general risk of a child being born a carrier
A plant physiologist has taken some specific cells from a plant and through various steps has produced a whole new plant. He or she can accomplish this due to the fact that
Which of the following is a common feature of all hormones?
During a Polymerase Chain Reaction, what part of the process indicates the marking or choosing of the sequence of interest ?
Which of the following is not a function of the urinary system? ?A. excretion of metabolic wastes ?B. maintenance of water-salt balance ?C. maintenance of acid-base balance ?D.
Central fatigue is caused by Central fatigue is caused by
3. Use your chart to start making a deduction about the cause of the food poisoning. Based on the information you've gathered do you feel that the cause of the food poisoning is a diatom or a dinoflag
a) increased phase 4 depolarization due to increased <funny channel< conductance
In humans, oogenesis in comparison to spermatogenesis is different in that _____.
Discovered a new cytoskeletal polymer that resembles actin in an archaean
Discuss the arguments for and against the classification of viruses as living organisms
How is potassium-argon dating useful to a palaeoanthropologist when it can'tbe used to date bone?