BIOLOGY HIGH SCHOOL

What are the three rules that govern the filling of atomic orbitals by electrons

Answers

Answer 1
Answer: Rule 1. aufbau rule - energy levels filled so lowest energy level filled first.
Rule 2. pauli exclusion principle - maximum of 2 electrons may be placed in each energy level. Provided the spins of electrons are of opposite sign.
Rule 3. hunds rule - when energy levels are equal one electron is added to each energy level in turn with their spins unpaired until each energy level has one electron.

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Multiple alleles _____. a. can interact and influence a trait such as eye color, b. cannot interact to influence traitsc. that interact are always sex linked
d.are made of RNA

Answers

Answer:

The correct answer would be option A. It can interact and influence a trait such as eye color.

Explanation:

Three or more alternative alleles of a gene that can occupy the same locus known as multiple allele condition. However, only two of the alleles can be present.

The ABO blood group system and human eye color are examples of the multiple allele condition.

Eye color is determined by multiple genes. OCA2 and HERC2  Both are located on human chromosome 15. A common polymorphism in the HERC2 gene is accountable for the blue eye. A person with homozygous TT predicts likely to have brown eyes, while a person with 2 copies of C allele at HERC2 rs1293832 will have blue eyes.

Thus, the correct answer would be option A.
can interact and influence a trait such as eye color 

Can you name a species that can only be found in Alaska (and nowhere else in the world)?

Answers

Some species we see in Alaska and nowhere else in the Wolrd are:

Bats
Shrews
Bears
Seals
White Wolfs
Sea lions
Racoons
Walrus. 

Bears, Seals, White Wolfs and Sea lions survive the cold weather much more than those other animals. 
The Spruce Grouse can be an option.

The Spruce Grouse is a bird endemic to the region of Alaska that is unique, since from all the Grouses, this is the one that spends the most time on trees.





Hope it helped,





BioTeacher101

What can be expected for the recessive trait of monohybrids from the f2 generation? a.all dominant traits
b.all recessive traits
c.1/3 dominant traits
d.2/3 recessive traits
e.none of the above

Answers

The answer is E. none of the above. 
None of the above would be your answer.  Hope you succeed

The nervous system of a clam is very simple. How can a clam function with such a simple nervous system?

Answers


a clam basically extends with the fragile outer system frame, therefore it retracts after a while, one of the main reasons we retrieve pearls from shells and clams.


Which is more acidic pH2, pH4 or pH6?

Answers

PH2 is more acidic than PH4 or PH6 which are more towards neutral yet still acidic.

How biotic and abiotic similar

Answers

They both affect the environment the way they can
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