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kkurt [141]
3 years ago
10

What did scientific investigations on sudbury's soil reveal

Biology
1 answer:
mel-nik [20]3 years ago
4 0
Scientific investigations on Sudbury's soil revealed the decrease
in soil pH was correlated with increased copper and nickel levels.
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Producers make up more biomass than primary consumers because _____.
Katyanochek1 [597]

The correct answer is option a. only 10 percent of the energy at each trophic level is passed on to the next level.

The producers obtain their energy from the sunlight and convert it into usable form of energy for consumers. The primary consumers eat the plants, and obtain energy from the plants. On each trophic level, only 10 % energy is transferred to the succeeding one.

As only 10% of the energy is transferred to the next trophic level, the primary producers need to eat more plants in order to meet their energy requirement. This insufficiency of the energy transfer from one trophic level to another causes the decrease in the biomass on next level.

8 0
3 years ago
If an atom has twelve electrons, how many electrons are in the n=1 energy level? how many electrons are in the n=2 energy level?
Serjik [45]

Magnesium has 12 electrons.........which wud mean that in the 1st energy level(n=1) there r 2 electrons, in the 2nd energy level(n=2) there r 8 electrons and in the 3rd energy level(n=3) there r 2 electrons.......its simple......use the formula 2n^2 where n= 1,2,3,......  

so the electron configuration of Magnesium in 2,8,2..................or more precisely 1s2, 2s2, 2p6, 3s2

8 0
3 years ago
Explain how the shape of a protein molecules can affect its function
kherson [118]

Solution:

The function of a protein is determined by its shape.

The shape of a protein is determined by its primary structure (sequence of amino acids).

The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.

7 0
3 years ago
What is a monomer and what is a polymer
ale4655 [162]
Monomer is a single organic molecule that can be bound in a chain.
polymer is a chain or a series monomer
6 0
3 years ago
As blood enters the ____________ , the walls of these vessels expand and contract, which can be felt as the pulse where the ____
kvasek [131]

Answer:

As blood enters the artery, the walls of these vessels expand and contract, which can be felt as the pulse where the arteries run close to the body surface. As blood enters the artery, the walls of these vessels expand and contract, which can be felt as the pulse where the arteries run close to the body surface. It is common to detect the pulse with a few fingers placed on the radial artery on the wrist, or the carotid artery in the neck. Because the walls of the arteries pulse whenever the left ventricle contracts, the pulse rate generally indicates the cardiac function, which is normally between 50 and 85 in a healthy adult.

Brainly??!!

3 0
3 years ago
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