Answer:
option B
Explanation:
The correct answer is option B
Cells are the basic structural and functional unit of life and possess genes. These genes evolve to carry out new biological functions in the body.
Cells undergo division and growth whether it be unicellular organisms or multi cellular organisms.
All cells possess the property of compartmentalization and metabolism henceforth taking up nutritive material from the environment.
These nutrients are further transformed into the cell compartments and the waste produced as a result is expelled out thus forming on open system.
Given what we know, we can confirm that the statement in the question is in fact true, by the end of the eighth week, the embryo is only 1 inch long and weighs just 1 gram.
<h3>What else do we know about the
embryo in this time frame?</h3>
During the first eight weeks, the embryo undergoes many changes. At this time:
- The legs and arms have formed.
- The fingers and toes are beginning to develop.
- It begins to be called a fetus.
- It is developing the lungs and lymphatic system.
- and much more.
Therefore, we can confirm that the statement that by the end of the eighth week, the embryo is only 1 inch long and weighs just 1 gram, is in fact true.
To learn more about embryology visit:
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Answer:
The answer is sedimentary rock.
Explanation:
At the same time the particles of sediment begin to stick to each other - they are cemented together by clay, or by minerals like silica or calcite. After compaction and cementation, the sedimentary sequence has changed into a sedimentary rock.
Hope that it helps!
The ions formed are;
- X⁺ - a positive ion
- Y⁻ - a negative ion
<h3>What are ionic bonds?</h3>
Ionic bonds are bond which are formed when electrons are transferred from one atom to another producing oppositely-charged ions which are held together by electrostatic forces of attraction.
In the formation of ionic bonds, the atom that donates one or more electrons forms a positive ion or cation while the atom that receives one electron or more becomes the negative ion or anion.
Considering the formation of ionic bonds between the atoms X and Y;
Atom X gives one electron to each atom Y, therefore, atom X acquires a charge of +1 while Y acquires a charge of -1.
The ions formed are;
- X⁺ - a positive ion
- Y⁻ - a negative ion
In conclusion, ionic bonds are formed during a transfer of electrons.
Learn more about ionic bonds at: brainly.com/question/1332431
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Answer:
This question lacks options, the options are:
A) The variable that is measured
B) The variable that is most common
C) The variable that you can see
D) The variable that is manipulated
The answer is A
Explanation:
Dependent variable in an experiment is the variable that responds to the changes or alterations made to the independent variable. It is the variable that is measured and recorded in an experiment.
For example, in an experiment conducted to test the effect of different fuels on the speed of an automobile. The speed of the automotive using different fuels (independent variable) is measured in kilometer per hour. Hence, the speed is the dependent variable.
