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xxMikexx [17]
3 years ago
12

Why would pushing a wooden block across a rough surface make the block warm?

Biology
1 answer:
Olenka [21]3 years ago
5 0
As we know there is a certain force called the frictional force that is required in order to resist the movement of a certain object. This frictional force occurs whenever two objects are rubbed against each other. The frictional force generated is converted to heat energy in due time making the surface hot. 
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In an interval of 5 minutes, ER has ribosomes attached to it which makes proteins synthesizing in the lumen of the endoplasmic reticulum incorporates proteins in the small transport vesicles.

These vesicles transport and fused to the Golgi bodies where proteins modified which can be seen in 15 minutes in the figure. Then modified proteins are transported from the cell cytosol with the help of secretory vesicle to the extracellular matrix and to the required organs.

8 0
3 years ago
All of the following are true about RNA except:
Nezavi [6.7K]

Answer: A

Explanation:

5 0
2 years ago
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Fermentation and/or anaerobic respiration occurs place in this part of the cell. _____________
Law Incorporation [45]

Answer:

Cytoplasm

Explanation:

Anaerobic respiration occurs in the cytoplasm. Fermentation enzymes are not restricted to specific organelles or cell structures. In contrast, aerobic respiration depends on mitochondria in eukaryotes and plasma membrane in prokaryotes.

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3 years ago
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Four boys have the same biological mother and father. What percentage of each boy’s chromosomes come from the mother?
Serggg [28]

50% because they each get half from their mom and half from their dad

4 0
3 years ago
Suppose two independently assorting genes are involved in the pathway that determines fruit color in squash. These genes interac
Vaselesa [24]

Answer:

120 white individuals

30 yellow individuals

10 green individuals  

Explanation:

Available data:

  • Dominant epistasis: Phenotypic frequencies 12:3:1
  • W allele codes for a dominant white phenotype
  • w allele codes for a colored squash
  • Y allele codes for a dominant yellow phenotype
  • y allele codes for a recessive green phenotype
  • W allele will always mask the phenotype produced by Y or y alleles
  • 160 offspring

Dihybrid Cross

Parental)   WwYy      x      WwYy

Gametes) WY   Wy    wY    wy

                 WY   Wy    wY    wy

Punnet Square)

                            WY         Wy        wY       wy

               WY     WWYY   WWYy   WwYY  WwYy

               Wy      WWYy   WWyy    WwYy  Wwyy

               wY      WwYY   WwYy    wwYY  wwYy

               wy       WwYy   Wwyy    wwYy  wwyy

F1 Phenotypic Frequency)

White phenotype: 12/16 = 120 individuals

Yellow phenotype: 3/16 = 30 individuals

Green Phenotype: 1/16 = 10 individuals

To know how many offspring are expected to have the white, yellow, and green phenotypes, you can perform a three simple rule. This is:

16 ------- 160 offspring

12 White ------- X = 120 offspring

3 Yellow ------- X= 30 offspring

1 Green --------X = 10 offspring              

3 0
3 years ago
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