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Phoenix [80]
3 years ago
13

The main organs of the excretory system are the _____.

Biology
2 answers:
Aleks04 [339]3 years ago
8 0

Answer:

correct answer is lungs, kidneys, skin, bladder.

Explanation:

edmentum.

cricket20 [7]3 years ago
7 0
As weird as it may seem, its actually the skin and kidneys! the skin plays an important role with removing toxins from the body through sweat ect. and the kidneys work to neutralise toxins and break down liquids in the body, so that they can then be removed from the system and released through the body in the excretory system. 
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The transmission of genetic material from one generation to the next is necessary for the survival of a species. Which statement
scoundrel [369]

Answer:

The correct answer would be B) The complementary base pair rules.

DNA serves as the genetic material in most of the living organisms and is transmitted from parents to their offspring.

It is like blue print of the cell which contains all the necessary information required for the functioning and regulation of cell in the form of nucleotide sequences.

Generally, DNA consists of two strands which are complementary in nature i.e. purine base pair with its specific pyrimidine (adenine always base pair with thymine and guanine always base pair with cytosine).

This property of DNA is of utmost importance in the process of DNA replication as daughter DNA strand is formed on the basis of complementary base pair of the template strand.

It ensures that correct DNA sequence is produced for transmission to the offspring or daughter cell.

8 0
2 years ago
The plaque (microbial biofilm) that forms between your teeth is a highly anaerobic (oxygen-free) environment, even though the mo
slavikrds [6]

Answer: The bacteria uses the oxygen present in the mouth.

Explanation:

The plaque that is formed in the teeth is a highly anaerobic bacteria but it can sustain in the environment rich in oxygen. The oxygen is used by the bacteria and there is a absence of oxygen in the teeth.

It is formed in between the teeth which needs oxygen to survive and if remains for tooth for a longer period of time then it began to grow without oxygen.

It basically uses the oxygen available in the mouth and makes the condition anaerobic.

8 0
3 years ago
Which of these is a body fossil. A shrimp burrow B dinasour bone C dinasour footprint D an ornithopod track
stepan [7]
C. Dinosaur footprint as it is the only body part that is stated in the choices.
Hope this helps :)

7 0
3 years ago
Read 2 more answers
In a certain breed of plants, dark green is determined by the dominant gene 'G' and light green is determined by the recessive g
stealth61 [152]

Answer:

The answer is 300.

Explanation:

When we cross GG and gg, 100% of the offspring will be heterozygous. If the heterozygotes show 75% penetrance meaning that there is a 75% probability that the plant that has the G gene will actually show it in it's phenotype.

So that means that 75% of the offspring should have dark green color, which means that 300 plants will have the expected phenotype and 100 will not.

I hope this answer helps.

7 0
3 years ago
- Start with the P generation with the following genotypes (AA x aa). Based on classical Mendelian inheritance, how will a cross
nexus9112 [7]

Answer:

<em>The correct option is Although the F1 generation will all show the dominant trait, the offspring  will all be heterozygous and increase chances of future variation.</em>

Explanation:

The cross for the offsrings that will be produced by F1 generation is shown below:

         a          a

A      Aa       Aa

A      Aa        Aa

As we can see that all the offsprings in the F1 generation will have heterozygous genes but only the dominant trait will be seen in the phenotype of the F1 generation.

A cross between the F1 generation will give the following results:

         A          a

A      AA      Aa

a       Aa      aa

This cross shows that there will be increases genetic and phenotype variations in offsprings that will be produced by the F1 plants.

6 0
3 years ago
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