Ernest would be swimming at 3.25 units on week 10
The explicit formula is given as:

Also, we have the following parameters
-- the initial distance
--- the difference between concurrent distances
In week 10, the value of n is 10.
Next, substitute 10 for n in the explicit formula 
So, we have:

Subtract 1 from 10

Multiply 9 by 0.25

Add 1.0 and 2.25

Hence, Ernest would be swimming at 3.25 units on week 10
Read more about arithmetic sequence at:
brainly.com/question/6561461
Answer:
Chromosomes are thread-like structures in organisms, found primarily in the nucleus of the cell. These chromosomes contain genetic information and are involved in cell replication and reproduction. Along with DNA, chromosomes contain histones, which are proteins that keep the chromosome bound together.
Answer:
Option D is a correct answer
Explanation:
An adaptation is adapted to suit the environment as every environment is different.
Different environment aids to different kind of adaptations that perfectly suits the animals living there.
The adaptation of an animal living in the desert region will have adaption to work in hot climate. The plant that grows in a desert area have no leaves and broad stem to store water.
The animals that live in the polar regions have thick fur to provide insulation and heat to live in polar region.