The third and last option is correct.
Species in the past (referring to dinosaurs) were more massive.
levels where higher in the past, which meant that plants prospered during that time since they had a easy access to food. That contributes to the fact that herbivores could grow bigger because there was more food. Which in turn, increases the size of early carnivores which eat bigger herbivores.
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Answer:
All blood types are made compatible with each other.
Explanation:
The different types of blood showed that not all blood types are compatible with each other. This is the reason why when a doctor transfer blood, this has to be compatible with the person's blood. Otherwise, the immune system will recognize the blood cells as antigens and proceed to destroy it.
Red blood cells in its surface can have different types of proteins, the proteins or lack of it that a person has determines the type of blood (A, B, AB). Also, if the cell has the Rh protein it will be positive, and if it does not have it, it will be negative. In total, we have eight blood types A+, A-,B+, B-,AB+, AB-,0+,0- and the compatibility depends on the proteins that a person has.
I don't personally know this but I looked it up and these were some answers I got.
1. There are no photoreceptors present, therefore vision is lost when light hits this spot (the blind spot)
2. Vision is lost when light hits the blind spot because the blind spot lacks photoreceptors, so light focused on it cannot be seen.
3. The back of your eye contains all of the detectors which sense when light hits them, this is how you see. All of these signals are sent to the brain by the optic nerve, which connects to the back of the eye to receive the signals. Where it connects, however, there are no detectors so there is a small patch which each eye is unable to see and the brain has to fill in based on data from the other eye.
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An alligator can have up to 74 to 80 teeth.
Answer:so awnser is b !
Explanation:
I KNOW this becaues i took the test
