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PIT_PIT [208]
2 years ago
5

The amount of carbon dioxide in the atmosphere has _____ since industrialization began in the nineteenth century. a) fluctuated

greatly . b) decreased . c) increased . d) remained the same .
Biology
2 answers:
Verizon [17]2 years ago
8 0
The correct answer among the choices listed above is option C. The amount of carbon dioxide in the atmosphere has <span>increased</span> since industrialization began in the nineteenth century. This is because more carbon dioxide is emitted by machines in plants and by the vehicles.
andreev551 [17]2 years ago
4 0
I choose letter "C. increased" for this item. The increase of carbon dioxide in the atmosphere is caused by many factors but is primarily due to emissions from industrial plants, great increase in number of vehicles, and many other activities. 
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In an experiment where the farmer was looking at the effect of fertilizer on tomato growth, what would the control group be?
tatuchka [14]

Answer:b

Explanation:

8 0
2 years ago
A female rabbit of phenotype c’ is crossed to a male rabbit with c ch. The F1 is comprised of five rabbits with a c’ phenotype,
mojhsa [17]

Answer:

Option E, c is recessive to both c’ and c ch

Explanation:

As it is given in the question that when phenotypically c female rabbits are crossed with father with phenotype cch , the offspring produced have only cch phenotype which means that allele cch is dominant over allele “c”

Now in the F1 cross, when a female rabbit of phenotype c’ is crossed with cch male rabbit, then also c’ is expressed over “c” allele.  

Hence, c is recessive to both c’ and cch allele

4 0
2 years ago
The ATP that is generated in glycolysis is produced by substrate-level phosphorylation, a very different mechanism than the one
Gwar [14]

Answer:

The correct statements are a, b and d. The incorrect statements are c and e.

Explanation:

Substrate level phosphorylation signifies the generation of ATP from ADP and a phosphorylated intermediate. On the other hand, in oxidative phosphorylation, the formation of ATP takes place from ADP and Pi, that is, an inorganic phosphate.  

In substrate-level phosphorylation an enzyme is needed for the reaction to take place. In the process, a dissociation of bond takes place between an organic molecule and a phosphate prior to the formation of ATP. In this, one of the substrates is a molecule obtained from the dissociation of glucose.  

In substrate-level phosphorylation, the enzyme taking part in the synthesis of ATP is not required to get attached to the membrane to generate ATP. The phosphate group, which is added to ADP to produce ATP does not come from free inorganic phosphate ions.  

6 0
2 years ago
Read 2 more answers
In certain bacteria, an oval shape (O) is dominant over round (o) and thick cell walls (T) are dominant over thin (t). Show a cr
Sonja [21]

Answer:

Phenotypes –  

Oval Thick - OoTt

Oval Thin - Oott

Round Thick - ooTt

Round thin - oott

Explanation:

Given -

Allele "O" is dominant over allele "o"

and allele for thick cell wall "T" is dominant over thin celled wall "t"

Genotype of heterozygous oval, thick cell walled bacteria is OoTt

Genotype of round, thin cell walled bacteria is oott

The cross between the two parents will produce following offspring

OT          Ot      oT ot

ot OoTt Oott      ooTt oott

ot OoTt Oott      ooTt oott

ot OoTt Oott      ooTt oott

ot OoTt Oott      ooTt oott

Phenotypes –  

Oval Thick - OoTt

Oval Thin - Oott

Round Thick - ooTt

Round thin - oott

8 0
2 years ago
The article describes the former abundance of trees and forests on easter island. describe several factors that contributed to t
tester [92]

1. One of the main reasons for the extinction of the trees in the Eastern Island is the extinction or sudden demise of the birds that carried the seeds to different places. Some of the human activities would have also led to the process of extinction, like the trees were being cut to construct canoes and to use as tools in order to erect statues, and to burn them for warmth.  

2. There was a need to farm the trees and manage them in a proper framework. For example, if one is having 100 trees, then one should use 33 and then plant 33 seeds, and should always keep 34 intact. One should have not used all the trees at once.  


5 0
2 years ago
Read 2 more answers
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