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mart [117]
3 years ago
10

According to the cladogram, which organisms are the closest relatives to the spider?

Biology
2 answers:
katovenus [111]3 years ago
8 0
Echinoderms is the answer

vfiekz [6]3 years ago
3 0
Cladogram which are closest relatives to chordates also have the four characteristics 
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This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient.
faltersainse [42]

Answer:

Primary active transport

Explanation:

Primary active transport is the transport in which molecules are moved against their gradient, with direct use of ATP as an energy source. Na/K pump  is an example  of primary active transport: Na ions are transported out of cell, K ions are moved into the cell. This pumps maintain concentrations of those ions and also creates voltage across the cell membrane, which can be used for the secondary active transport of other molecules (e.g. glucose).

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     The basement membrane is found between the epithelium and connective tissue.

<em>      The image attached is a diagram from www.lamission.edu.</em>

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.

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2 years ago
Which of the following does NOT increase genetic variation in a population?
slega [8]
D is the answer. Mutations can cause MANY problems. 
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At low temperatures, a particular enzyme catalyzes a reaction, but at a slow rate. At high temperatures, the enzyme is completel
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Explanation:

Enzymes are those catalysts which is generally proteins through some RNA molecules as enzymes too.  The activation energy of reaction of Enzymes lower is required amount of energy which is needed for occurring the reaction.

Temperature, pH and concentration affect the Enzyme activity. The raising of temperature generally speeds up the reaction. Due to high temperature enzyme to lose its shape and stop working.  The part of enzyme where substrate bind is called the active site.  

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