Answer:
Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane. Gas exchange in gills and lungs operates by this process. Carbon dioxide is produced by all cells as a result of cellular metabolic processes.
Explanation:
Oceanic crust is continuously being created at mid-ocean ridges<span>. As plates diverge at these </span>ridges<span>, magma rises into the upper mantle and crust. As it moves away from the </span>ridge<span>, the lithosphere becomes cooler and denser, and sediment gradually builds on top of it.</span>
Answer:
T-A
C-G
C-G
A-T
G-C
Explanation:
The two base pairs are C-G and A-T and they can be used inversely.
They are homologous characteristics.
Answer:
The mean of a set of numbers is the sum divided by the number of terms.
100
Use the formula
a
n
=
a
1
r
n
−
1
a
n
=
a
1
r
n
-
1
to identify the geometric sequence.
a
n
=
7
n
−
1