XX and XY chromosomes are only found in humans.
The XX set of chromosome set is found in females only.
The XY set of chromosome set is found in males only.
Hope this helps!
Answer:
The skeletal muscles connect to the bones and work with connective tissue at the joints to allow for movement. The muscles connect to the nervous system and allow initiation of movement through nerve signals to and from the brain. The bones and muscles are supported by connective tissue, which plays an integral role in structural support.
The cell theory consists of:
1. all living organisms are made up of cells
2. cells are the basic structural/organizational unit of all organisms
3. all cells come from pre-existing cells
A. cerebellum
B. medulla oblongata
Calico cats are predominantly female because they’re colouring is related to the X chromosome.
- Two X chromosomes are needed for a cat to have that distinctive tri-colour coat.
- If a cat has an XX pair, she will be female.
- Male cats have an XY chromosome pair, so they can’t be Calicos.
Have a great day <3 (I love cats)
