Salutations!

A group of cells working together are called tissues. Organisms are made up of this structure. Cells are the smallest unit of life. A group of tissues working together is called organ. A group of organs working together is called organ system. An organ system working together makes up an organism.

Hope I helped (:

Have a great day!

6 0

2 years ago

PLZ HALP SOOOON! THIS IS RELY IMPORTANT & DUE @ 12:00 PM TODAY!!!!

balandron [24]

Answer:

Here let me help you, DNA influences physical traits by changing how you look, sound, and function. Your parents transfer their genes into you which means you are left with characteristics of there body, such as having your father's nose. Hope this helped.

Explanation:

5 0

3 years ago

Suppose that in humans the ability to roll the tongue (R) is dominant to being unable to roll it (r), and having freckles (F) is

tatuchka [14]

Answer:

1/4

Explanation:

A heterozygous woman for both traits (RrFf) marries with a man with no freckles (ff) who can't roll his tongue (rr).

The cross is: RrFf X rrff.

The woman can produce the gametes RF, Rf, rF and rf

The man can only produce rf gametes.

The possible offspring that can arise from the combination of those gametes is:

1/4 RrFf Freckled, tongue-rolling
1/4 Rrff Freckled, unable to roll tongue
1/4 rrFf Not freckled, tongue-rolling
1/4 rrff Not freckled, unable to roll tongue

4 0

2 years ago