Answer:
The correct answer is - option B. They are small because they lack a nucleus.
Explanation:
Red blood cells or erythrocytes are specialized cell that produce in bone marrow and have specific role such as carrying oxygen from lungs to deliver it to the various organs and carry out carbon dioxide.
In mammals these cells lack cell organelles such as nucleus and mitochondria, a major factor that determined its smaller size. The size of RBC are move through narrow vessels throughout a organism because of its specific size and shape that provide it space for hemoglobin and allow to be flexible and bend to move through narrow vessels.
Thus, the correct answer is : option B. They are small because they lack a nucleus.
Answer:
A series if reaction break and rrarrange csrbon bonds to release energy ang carbon dioxide.
Answer:
Preservation of remains (protection against scavenging, erosion and environmental damage) High pressure to promote mineralisation of remains (i.e. turn hard body parts into fossilised rocks) Anoxic (low oxygen) conditions to protect against oxygen damage and prevent decomposition by saprotrophs
Explanation:
Answers
• When the cue ball contact the other ball, momentum is transferred causing then to gain momentum and speed
• Less than 3m/s
Explanation
According to the law of momentum conservation, when two objects in an isolated system collide, the total momentum of the two objects before and after collision is equal .Momentum is directly proportional to both the mass of the objects and velocity. In this collision, the objects interact with each other thus they stick together after collision and move with a similar velocity. I.e. an elastic collision.
