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Sauron [17]
3 years ago
13

HELP ASAP!! 2 MINUTES!! I'll give brainliest and points and thanks if you get it right.if you do 1 I’ll give you a thanks, if yo

u do 2 I’ll give brainliest and thanks

Biology
1 answer:
Maru [420]3 years ago
3 0

#3. D- Coarse adjustment knob

#4. A

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What organisms comprise the invertebrate chordates?
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The invertebrate chordates include Tunicates and lancelets.

<h3>What are invertebrate chordates?</h3>

They are a group of chordates that possess notochords somewhere in their life span but end up not possessing the vertebral column. They possess all the characteristics of chordates.

Invertebrate chordates include the Urochordata which are the Tunicates and the Cephalochordata which are the lancelets.

More on invertebrate chordates can be found here: brainly.com/question/1969651

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The pKa of an acid depends partly on its environment. Predict the effect of each of the following environmental changes on the p
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The pKa represents the pH of the medium at which the zwitterionic amino acid assumes most stable ionic form due to structural stabilization. As the pKa is dependent upon the environmental factors of the solution around the amino acids, a change in their structure and localization can cause change in the pKa of the protein. Thus, the answers can be found as below:

Part A: Decrease (As the lysine is basic in nature, it will tend to stabilize the electrostatic interaction and weak interactions between the acidic amino acids and hydrogen bonds in the viscinity, thus lowering the pH and hence pKa of the protein)

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Part C: Increase (As glutamic acid is an acidic amino acid, its shift from outside to a non-polar site will prevents its ionization and hence the pKa will tend to shift from slightly acidic to slightly basic, hence increase)
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How can polyploidy in plants benefit humans?
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<span>Polyploid plants are usually stronger and better</span>
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Explanation:

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