Answer:
clean it up
Explanation:
cause if someone isn't looking where they're going and they trip on something then fall in the glass
Zebra,Blackbear,butterfly,pandabear
Answer:
False.
Explanation:
An Haemoglobin molecule is made up of 4-polypeptides, with each of the polypeptide chain containing an haem group. These haem group can bind with one oxygen atom each.
T<u>he binding of the first oxygen atom by the first haem group weakens the tertiary protein structure of Quaternary structure Hb, thus it makes it easier for the second Oxygen atom to bind faster, and the 3rd oxygen very fast and the 4th oxygen atom the fastest.These accelerated binding of the oxygen atoms, facilitated by the first binding O2, is called cooperative binding.It aids oxygen binding capacity and tranport functions of Hb,</u>
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<u>Myoglobin is an oxygen storage protein in muscles, and not oxygen carrying molecule, It releases stored O2 only in condition of low oxygen supply</u>.It has one haem group in its molecule.Therefore its structural features can not carry out cooperative binding.
Answer: Option A
Explanation:
Birds attach the bur of the plant which helps in the pollination. The birds sit on the plant and the burs of the plant gets attached in the legs of the birds which is transferred from one place to another.
Seeds at a different place will help in reproduction and growth of the plants. In this case the birds are carrier of the burs.
This is how the birds help in the reproduction of the plants by becoming the messenger.
Selective pressure can be a driving force of evolution; option A.
<h3>What is selective pressure?</h3>
Selective pressure refers to external forces which affect an organism's ability to survive in a given environment.
Selective pressure can either decrease or increase the occurrence of a trait.
Therefore, selective pressure can be a driving force of evolution.
Learn more about selective pressure at: brainly.com/question/1538410
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