Answer:
There are 2 sex chromosomes – X and Y. Females have 22 autosomes and two X chromosomes, i.e., 22 + XX, while males have 22 autosomes and an X and Y chromosome each, i.e., 22 + XY. hope it helps.
basically 22
Explanation:
Answer:
Exoskeletons provide less mechanical leverage.
Explanation:
There are two types of skeleton in living beings: the endoskeleton (which vertebrates possess, is lined with epithelial tissue and has bones and cartilage) and the exoskeleton, a skeletal structure that is located outside the body of the living being. , is an external skeleton. They are common in invertebrate animals, which have no internal bone structure.
The exoskeleton is a tough but flexible outer layer, not formed by bones, unlike the vertebrate endoskeleton. Its function is mechanical, chemical and biological protection, avoid excessive water loss, muscle support and serves as a connecting point for legs, wings and other appendages. However, this type of skeleton provides less mechanical leverage.
On the other hand, the endoskeleton is the name given to the internal skeleton, which is inside the body. This body structure is mainly seen in vertebrate animals and has the function of supporting and moving the body, as well as protecting some internal organs. Unlike exoskeleton, the endoskeleton provides more mechanical leverage.
Answer:
BELOW
Explanation:
Classrooms and Corridors: People rushing, locker doors, loose school items
On the territory surrounding the school: Rocks, trees, animals?, if not animals then: people
In the school: people, doors, bathrooms(no cameras)
In the settlement: People, doors, rocks
if an earthquake happens get in a doorframe and/or get on the ground and put your hands over your neck.
You should follow the teacher or staff's instructions
If you are alone find other people
911
(YOU KNOW THE NUMBERS i cant tell you)
During nitrogen fixation, bacteria breaks nitrogen gasses down into a usable form for plants.
