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lisabon 2012 [21]
2 years ago
11

Which of the following is true about acid rain? a. It is more acidic that normal rain. b. It is less acidic than normal rain. c.

All rain is acid rain. d. There is no such thing as acid rain. Please select the best answer from the choices provided A B C D
Biology
1 answer:
Darina [25.2K]2 years ago
8 0

Answer:

A

Explanation:

Acid rain usually has a pH between 4.2 and 4.4, while normal rain has a pH of about 5.6.

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Animals can be classified according to their mode of thermoregulation. Sort the animals below, indicating their likely thermoreg
Gemiola [76]

Answer:

Explanation:  Eagles   are endotherm and homoeothermic.

Coyote are endotherms and homoeothermic.

Walrus are Endothermic and homoeothermic.

The above organisms maintain constant internal body temperature irrespective of fluctuations  in surrounding temperature.

Artic shrimp are ectotherms; and homoeothermic. Despite the fact that it has  negligible source of intenal heat, its environmental temperature is relatively stable, therefore it  is both ectotherms and homoeothermic.

Butterfly, freshwater catfish, Salamander are Poikilothermic.  These organism’s body temperature fluctuates with  the immediate  surrounding temperature. They lack internal body temperature.

3 0
4 years ago
16. Why should the recessive phenotype be used first to determine the q squared value instead of the dominant phenotype to deter
podryga [215]

The recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.

<h3>What is a recessive phenotype?</h3>

A recessive phenotype is a phenotype which expresses the recessive trait of a gene.

The recessive phenotype is always h0m0zygous for that triat to be expressed.

In the Hardy-Weinberg equilibrium equation, the allele and phenotype frequencies are given as follows:

  • p^2 + 2pq + q^2 = 1

where;

  • p^2 is the h0m0zygous dominant phenotype frequency
  • 2pq is the heterozygous phenotype frequency
  • q^2 is the h0m0zygous recessive phenotype frequency

Therefore, the recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.

Learn more about recessive phenotype at: brainly.com/question/22117

8 0
2 years ago
In a nucleotide, the nitrogenous base is attached to the sugar's _____ carbon and the phosphate group is attached to the sugar's
LUCKY_DIMON [66]

Answer:

A. 1' ... 5'

Explanation:

The pentose sugars present in nucleotides have five-carbon structures. Other components of a nucleotide are a phosphate group and a nitrogenous base. The nitrogenous base in a nucleotide can be a purine or pyrimidine. The purine bases are covalently joined to the 1' carbon atom of the pentose sugar at their N-9. The bond between the nitrogenous base and a pentose sugar is called the N-beta glycosyl bond.

Similarly, N-1 of a pyrimidine base is covalently linked to the 1' carbon of the pentose sugar. The phosphate group of a nucleotide is bonded to the 5' carbon of the pentose sugar.

8 0
3 years ago
Charles Darwin’s theory of evolution by natural selection explains each of the following EXCEPT how
lina2011 [118]

A.  

Variation in species --> natural selection --> differential reproduction --> heredity --> evolution

B.  

Heredity --> variation in species --> differential reproduction --> natural selection --> evolution

C.  

Variation in species --> differential reproduction --> heredity --> natural selection --> evolution

4 0
3 years ago
Read 2 more answers
Is this statement true or false? The rotation of earth on axis is one of the causes of the daily tidal cycle.
mars1129 [50]

The explanation of the question is true.

3 0
4 years ago
Read 2 more answers
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