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pishuonlain [190]
3 years ago
8

Earth's layers formed as result of differentiation. During differentiation, different zones of elements form layers and today we

know these layers are made up of different elements. Certain elements sunk to the center while others collected near the surface. We might predict that the __________ elements, like iron and nickel, formed the core. A) heavier B) least dense C) light weight D) first crystallized
Biology
1 answer:
omeli [17]3 years ago
6 0
The answer is D hope this helps
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Please help me with this it’s due today
uranmaximum [27]

Answer:

The correct answer is - 0 m/s.

Explanation:

In this position-time graph or distance-time graph, there are three different part that shows three different velocities one in increasing as it moves from a lower position in relative to time and one is stationary and the third is decreasing.

'Straight lines' on a distance-time graph suggest that the movement of the object is constant. During 'Part B' of the journey the object travels 0m in 3s. It is stationary for 3 seconds so the velocity will be zero as well.

3 0
3 years ago
Which excrine structure Is involved in the digestion of fat
cestrela7 [59]
The answer is:  The <span>exocrine structure that is involved in the digestion of fat is </span>liver.

<span>>The liver plays an vital role in the digestion and processing of proteins, fat and sugar.
</span><span>>The liver plays a significant role in fat digestion as well as the production of fats needed for the function of different organs of the body</span>
3 0
3 years ago
Which of the following samples will have the greatest volume at STP?a. 22 g Neb. 22 g Hec. 22 g O2d. 22 g Cl2 e. All have the sa
sammy [17]

Answer:

22g of He

Explanation:

Volume of gas at STP is given as :

Volume occupied(dm³) = number of moles x 22.4dm³mol⁻¹

In order to solve this given problem, we would first find the number of moles from the different masses of atoms and molecules given.

Number of moles = \frac{mass }{Molar mass}

Now, let us obtain the molar mass of the given atoms and elements:

For Ne; molar mass is the atomic mass = 20gmol⁻¹

      He = 4gmol⁻¹

      O₂ = (16 x2)gmol⁻¹  = 32gmol⁻¹

      Cl₂ = (35.5x2)gmol⁻¹ = 71gmol⁻¹

Number of moles of Ne = \frac{22}{20} = 1.1mol

Volume occupied by Ne at STP = 1.1 x 22.4 = 24.64dm³

       

Number of moles of He = \frac{22}{4} = 5.5mol

Volume occupied by He at STP = 5.5 x 22.4 = 123.2dm³

Number of moles of O₂ = \frac{22}{32}  = 0.688mol

Volume occupied by O₂ at STP = 0.688 x 22.4 = 15.4mol

Number of moles of Cl₂ = \frac{22}{71} = 0.3099mol

Volume occupied by Cl₂ at STP = 0.3099 x 22.4 = 6.94dm³

5 0
3 years ago
What analogy is used to describe how cell replication is regulated?​
Alenkasestr [34]

Answer:

Again keeping with the similarity to the centromere, this metaphor also has been used to describe the building of the kinetochore on the centromere (56). DNA replication is regulated in the cell cycle in the following manner (Figure 1b): ORC recognizes and binds to the origin.

Explanation:

3 0
2 years ago
What are the components of the dna and rna molecule??
kiruha [24]
Nucleic acids are molecules that are essential to, and characteristic of, life on Earth. There are two basic types of nucleic acid, DNA (oligonucleotide acid) and RNA (nucleic acid). This exercise will focus on DNA, although ways in which it differs from RNA will also be presented. DNA is found in all organisms from the smallest bacteria to humans. DNA has the same composition and structure in all organisms!DNA has two important functions.1 - it is the genetic material that is passed from one generation to the next.2 - it is the coded information that tells cells how to make proteins.
3 0
3 years ago
Read 2 more answers
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