So for the first question it is the middle answer
The second answer is the last one,Let me explain so Use and discuss for the first one the bird is using the crab with a large claw to survive,The boy was helped I hope this helps
Answer:
In humans, mature red blood cells are flexible and oval biconcave disks. They lack a cell nucleus and most organelles, to accommodate maximum space for hemoglobin; they can be viewed as sacks of hemoglobin, with a plasma membrane as the sack.
Explanation:
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You would because you would get cheaper electricity
Jellyfish, corals, and hydras belong to the group of animals called cnidarians.
The main characteristic of this group is that all of its members possess specialized cells called cnidocytes which often produce venom and have a role in capturing the animals prey.
The Richter scale is a way of giving the intensity of all earthquakes a numerical value. this allows the strengths of different earthquakes to be compared. Because of this, i think the best answer is D
