A balance is best used to measure a sample's mass.
Answer: C
Explanation:
Weighing balance refers to a measuring instrument which is used to measure the mass of the sample.
It has two pans. On one pan, the material to be weighed is placed, with adequate known loads on the other one to such an extent that the shaft will be in balance.
The distinction between the zero perusing and the perusing with the dish stacked demonstrates the contrast between burdens in scale divisions.
Such an instant weighing needs the arms be of equivalent length.
Answer:
cross 1: 75% black 25% white
cross 2: 50% black 50% white offspring
Explanation:
Cross 1
Heterozygous black x heterozygous black
F f
F FF Ff
f Ff ff
75% black 25% white
Cross 2
Heterozygous black x homozygous white
F f
f Ff ff
f Ff ff
50% black 50% white offspring
<span>The function of the digestive system is to digest and absorb the food that we eat . Which means that we have two main processes , digestion and absorption. Digestion is the breakdown of food into small molecules,which are then absorbed in your body (during the process of absorption). </span>
Answer:
Prey-predator = a stork eating a fish with its beak.
Parasitism = ticks sucking the blood from the body of an animal.
Commensalism = barnacles on the back of a whale.
Explanation:
The stork is a predator since it feeds on another organism completely (the prey). The ticks are parasites as they feed off nutrients from a living animal. The barnacles and the whale are commensals as the barnacles are carried about at no harm to the whale.
<span>The main function of RNA Polymerase is that it unwinds the double helix and adds nucleotides to a growing strand of RNA. RNA Polymerase makes the Polymerase seperate from the DNA. RNA polymerase is a very important enzyme in the process of transcription.</span>
