What did scientific investigations on sudbury's soil reveal

Answers

Answer 1

Answer: Scientific investigations on Sudbury's soil revealed the decrease
in soil pH was correlated with increased copper and nickel levels.

Related Questions

A frog belongs to which kingdom?
1. in an ecosystem with four levels—producers, primary consumers, and two higher-level consumers—describe where the decomposers operate relative to the other trophic levels. provide at least two examples of organisms at each level.
What is Gregor Mendel remembered for?
Not all members of a species are the same. Every species exhibit
write out the chemical formula for a compound that has 18 carbon atoms, 26 hydrogen atoms, 1 chlorine atom, 3 nitrogen atoms, and 1 oxygen atom?

4A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into ag
mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. W
macromolecule groups is this liquid most likely to be a member of?
O A. carbohydrates
ОВ. nucleic acids
OC. lipids
OD proteins Reset Submit

Answers

Answer:

Lipids!

Explanation:

Lipids are made up of Oils that, when mixed in water or other chemicals, will separate. Since Oils do not mix and float to the top, and since Oils are a type of lipid, the answer is Lipids!

Which best determines the health of a lake used as a source of freshwater?

Answers

1-PH.....
2-Turbidity......

Which of the following tastes may be detected at very low concentration?sweet
umami
bitter
salty

Answers

The correct answer is bitter.

People have very strong negative reactions when it comes to a bitter taste. Most of the substances like toxins have bitter taste. The ability of the taste buds to taste the bitter substances shows evolutionary history. The taste has evolved because most of the substances that are harmful to the human beings are bitter in taste. The substances such as alkaloids, drugs, medicines, quinine, caffeine and nicotine have bitter taste. These tastes are not very common to the taste buds so they are detected at very low concentrations.

The taste which we can detect already at very small concentrations is salty taste.

The reason why we have a special affinity for tasting bitter things. The reason why we can taste bitter things at extremely low concentrations is because potentially dangerous compounds can be bitter and it made evolutionary sense for organisms to adapt to taste bitter things.

After meiosis there area. two haploid cells.
b. two haploid gametes.
c. four haploid cells.
d. four haploid gametes.

Answers

After meiosis 2 there are 4 haploid gametes

Meiosis is responsible for making sex cells only

Final answer:

After meiosis, there are four haploid cells which can develop into gametes. This process is crucial for sexual reproduction in eukaryotic organisms.

Explanation:

After meiosis, the correct answer is that there are four haploid cells. During this process, one diploid cell (which has two sets of chromosomes) undergoes two rounds of cell division to create four haploid cells (each with one set of chromosomes). These cells can then develop into gametes, or sex cells, which can join together during fertilization to form a new diploid organism. This is a fundamental aspect of sexual reproduction in eukaryotic organisms.

Learn more about meiosis here:

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Some insecticides interfere with the removal of acetylcholine from the synaptic cleft. what effect will this have on muscle contraction

Answers

The effect of insecticides will result in prolonged muscle contraction. Acetylcholinesterases are the enzymes that catalyze the breakdown of acetylcholine (Ach) in the synaptic cleft. This normally occurs, after the Ach achieves its effects on its receptors. On the other hand, acetylcholinesterase inhibitors inhibits the acetylcholinesterase enzyme thereby increasing the level and duration of action of the neurotransmitter ACh. Acetylcholinesterase inhibitors are used as insecticides.

What does oxidation involve?A. A loss of electrons
B. A gain of electrons
C. A loss of oxygen
D. A gain of hydrogen

Answers

the answer is A. A loss of electrons

Oxidation involves a loss electrons. And also the oxidation state of the elements rises.

Other Questions

Following replication of its DNA, each chromosome contains two _______ which are attached to each other by a centromere.

Question 1: Which of the following genetic disorders exhibit reduced penetrance? (0.25 point) A. Familial hypercholesterolemiaB. Split-hand deformity C. Cystic fibrosis D. Achondroplasia Question 2: Which of the following statements is true with X-linked dominant genetic disorders? (0.25 point ) A. Affected mothers have 100 percent affected daughters B. Affected mothers have 100 percent affected sons C. Affected fathers have 100 percent affected daughters D. Affected fathers have 100 percent affected sons Question 3: Hemophilia is an X-linked recessive disorder. A hemophilia carrier is married to a person with hemophilia. Which of the following would be expected to see in their offspring? ( 0.25 point ) A. All sons are affected B. All daughters are unaffected C. All sons are affected and 50 percent of daughters are unaffected D. Fifty percent of daughters and sons are affected. Question 4: In case of autosomal recessive disorders, which of the following statements is true? ( 0.25 point) A. If one parent is affected, all children will be unaffected. B. If both parents are affected, all children will be affected C. If both parents are affected, all sons will be affected but no affected daughters D. If a child has the disease, one of his or her grandparents will have the disease Questions 5-8 (1 point each): Please see the pedigrees in the attached powerpoint presentation. For each pedigree, determine the most likely mode of inheritance. The options are: A. X-linked recessive B. Autosomal dominant C. Mitochondrial D. Autosomal recessive E. X-linked dominant

TRY #7 ON GETING MY QUESTION ANSWERED THANKS FOR THE HELP EVERYONE!!!:(What’s a more accurate way to describe electron orbitals?

Which of the following gases is NOT found in Earth’s atmosphere?a. oxygenc. hydrogenb. nitrogend. all of the above are in the atmosphere