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Lesechka [4]
3 years ago
8

The cell that makes up a human body need oxygem at all times

Biology
1 answer:
wariber [46]3 years ago
3 0
I would think that is the red blood cell. I could be wrong so correct me if I am.
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What two elements have the same number of energy level (shells)?
melomori [17]

Answer:

Elements that are found in the same horizontal row (belong to the same period) in the periodic table, e.g. Fluorine and Neon both have the same energy level of 2.

<em>Note: The question does not specify any two elements.</em>

Explanation:

The modern periodic table is organized into eight vertical columns known as groups and seven horizontal rows known as periods. The atomic number ( number of protons in the nucleus) of elements increases when moving across the periodic table from left to right. The horizontal rows or periods represents an energy levels or the number of electron shells in an element. Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. Elements belonging to the same period have the same number of energy level or shells. For example, the elements belonging to Period 2 include lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon. These all have the same number of energy level of 2.

7 0
3 years ago
BRAINLIEST 20 POINTS ANSWER THESE QUESTIONS
yarga [219]
1. An underdeveloped DNA molecule would result in mutations. On the genetic level, this could mean entire traits are deleted or that an early stop occurs in transcription, which could cut off parts of instructions.

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3. In each cell itself there are roughly 42 million proteins.
4 0
3 years ago
3. In centaurs, the allele for curly tails (T) is incompletely dominant to the allele for straight tails (t). The hybrid genotyp
Reptile [31]

Answer:

a. Determine the allele frequencies of:

f(T) = 0.485 ≅ 0.48

f(t) = 0.515 ≅ 0.52

b. Determine the genotype frequencies of the exposed generation

  • F (TT) = 0.21
  • F (Tt) = 0.55
  • F (tt) = 0.24

the genotype frequencies of the next generation

  • F(TT) = 0.23
  • F(Tt) = 0.5
  • F(tt) = 0.27

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

Download pdf
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3 years ago
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They have sharp teeth up to 3 inches long and they are big
6 0
3 years ago
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The theory of continental drift says that the Earth's continents were once one giant supercontinent but have drifted apart over
Natali5045456 [20]
Hey there!
The answer is B, Pangaea. This was the name for the large continent that supposedly existed before we had all of our separate continents today (all of which were part of Pangaea).
Hope this helps
4 0
3 years ago
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