Exchange systems help primarily with:
a. balance.
Answer:
Explanation:
The two groups are: animals with a backbone these are called vertebrates animals without a backbone – these are called invertebrates. Vertebrates all have backbones.
Answer:
3 1/2
Explanation:
it's a simple calculation actually 3.5 hours * 60 minutes in each hour) equals 210 minutes
Definitions:
Cisgender: Person's gender identity matches gender on birth certificate, or gender assigned matches your gender.
Gender fluidity: Change <u>over time</u> in someone's gender expression or gender identity, <em>or</em> both.
Hope this helps!
--Applepi101
