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Anarel [89]
3 years ago
12

The only variables in the lab procedure are the

Biology
2 answers:
masya89 [10]3 years ago
8 0

Answer:the answer is presence of worms and growth of plants

Explanation: got it right on edg

weeeeeb [17]3 years ago
6 0
Perhaps solvent and solute
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What is trepanation? and why was this used?
maw [93]

Answer:

<em>Trepa</em><em>nation</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>pro</em><em>cess</em><em> </em><em>whereby</em><em> </em><em>a</em><em> </em><em>hole</em><em> </em><em>is</em><em> </em><em>drilled</em><em> </em><em>into</em><em> </em><em>the</em><em> </em><em>hum</em><em>an</em><em> </em><em>skull</em><em>,</em><em> exposing</em><em> </em><em>the</em><em> </em><em>dura</em><em> </em><em>mater</em><em> </em><em>to</em><em> </em><em>treat</em><em> </em><em>heal</em><em>th</em><em> </em><em>probl</em><em>ems</em><em> </em><em>related</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>intracra</em><em>nial</em><em> </em><em>disea</em><em>se</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>hu</em><em>man</em><em> </em><em>bod</em><em>y</em><em>.</em>

Explanation:

Trepanation is used to treat health problems associated with intracranial diseases, epileptic seizures, migraines and mental disorders by relieving pressure.

4 0
3 years ago
How can you recognize the difference between a fatally poisonous scorpion and a scorpion that is not harmful to humans?
DedPeter [7]

Answer:

its color, its skin pattern so 2 speak

Explanation:

8 0
2 years ago
Pls help bio
kogti [31]
<h2>Cell Cycle </h2>

Explanation:

Eukaryotes grow and divide by cell cycle.

The main parts of a cell cycle are an ordered series of events – Gap 1 or G1 phase, Synthesis or S phase, Gap 2 or G2 phase, and the mitosis or M phases.  

Interphase period (G1, S, G2 phases) - cell grows by size, duplicates its content, replicates its DNA, and finally prepares for mitotic cell division .

Mitosis and cytokinesis - formation of two identical daughter cells

Cell cycle is regulated by regulatory or restrictive checkpoints in the cell cycle which are activated with detection of a defective DNA.

Proliferation of undesired or cells with defective DNA like in case of tumor cells is controlled by the action of suppressing agents like p53 and cyclins.

The tumor suppressor gene protein p53 prohibits division of tumor cells. Cyclins regulate cell cycle by activation of the enzyme cyclin-dependent kinase.

3 0
3 years ago
Select the statements that explain why duplication is a driving force for evolution and the generation of new genes.
Paha777 [63]
<span>It is vitally important to life, any form of life. Life in it's self is what we are all striving to grasp, hold and not let escape. It is the endless search for meaning to understand and comprehend. Evolution which is the symphonic struggle of nature to overcome and create the most suitable specimen ensuring its survival within its species from its predators and the world at large. Duplication is natures way to regenerate and strengthen the gene pool of species. It allows newer generations to improve on the genes to enable it to adapt better to the current environment is is facing. It is a constant and never ending process.</span>
4 0
3 years ago
Read 2 more answers
The biomass pyramids for phytoplankton and trees in their respective environments are _______.
ss7ja [257]

The right answer is opposite.

In the air, the biomass of primary producers is often much higher than the biomass of consumers, especially in forests where a large part of the biomass is wood. In aquatic environments and especially oceanic, the biomass of primary producers (phytoplankton) is generally lower than that of consumers but this biomass is rapidly renewed.

6 0
3 years ago
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