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Dmitriy789 [7]
3 years ago
10

A dependent variable is ? a.directly changed by the experimenter ,B.manipulated by changes to the independent variable.,C.a vari

able that is kept constant.,D.a variable that is used as a control.
Biology
1 answer:
12345 [234]3 years ago
8 0

Answer:

A dependent is something that you measure

Explanation:

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Showing dominance over were ever they did that at
8 0
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The illustration below indicates that photosynthesis and cellular respiration are both complementary and balanced. An excess of
Norma-Jean [14]

Answer:

The rate of photosynthesis was more than the rate of respiration

Explanation:

Photosynthesis has to do with the synthesis of sugar molecules from inorganic products such as water and carbon dioxide. Respiration on the other hand has to do with breaking down of the sugar molecule from photosynthesis to release the energy locked up in the sugar for various metabolic processes in the plant's body.

<em>If both processes are balanced, there will be no net sugar production. Hence, if an excess of sugar produced fossil fuels, it thus means that there was net production of sugar in the past. The rate of photosynthesis was more than the rate of respiration in the past.</em>

4 0
3 years ago
A population of ground squirrels lives in underground burrows several miles from an ocean shore. If a hurricane strikes the shor
Travka [436]

Answer:

flooding

Explanation:

The hurricane brings in enormous amounts of rainfall with it, often resulting in flooding. The ground squirrels in this scenario live relatively close to the ocean shore. They live in burrows, spending big portion of their time in them, as well as having their young ones sheltered in them. The heavy rainfall and the flooding of the area will result in filling the burrows with water. The damage for the population of ground squirrels will be enormous, with their young ones all drowning for sure, and the majority of the adults getting drowned as well, or maybe even all of them. Hope this helps!!!!!

5 0
3 years ago
In your own words, describe what information the visible DNA fingerprint provides for each DNA sample
Sidana [21]

Answer:

The visible DNA fingerprint can help extract DNA which, after analysis, can accurately identify the suspect or perpetrator of the crime.

Explanation:

DNA Fingerprinting:

  • DNA fingerprinting is a molecular analysis tool that can help identify a suspect in a crime through DNA extracted from fingerprints.
  • Specific patterns in the DNA, known as polymorphisms, can be identified through DNA fingerprinting.
  • The DNA fingerprinting process involves:
  1. Extraction and purification of the DNA from the fingerprint.
  2. PCR amplification to obtain high yield.
  3. Fragmentation of the DNA by use of restriction enzymes.
  4. Gel electrophoresis analysis of the fragmented DNA.
  5. Analysis of gel to compare the size of the bands.
7 0
3 years ago
A bond of the following elements would be of what type? Ca + 2Cl<br><br> Covalent or ionic
dedylja [7]

Answer:

Ionic

Explanation:

Ionic bond:

It is the bond which is formed by the transfer of electron from one atom to the atom of another element.  

Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.

For example:

calcium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for calcium is 1. There is large difference is present. That's why electron from calcium is transfer to the chlorine. calcium becomes positive and chlorine becomes negative ion.

There are two valance electrons in calcium so it needed to lose two valance electrons to complete the octet while chlorine needed one electron to complete the octet. Thus two electrons lost by one calcium atom are gained by two atoms of chlorine.

Ca + Cl₂ → CaCl₂

7 0
3 years ago
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