Dandelion stem The cells on the outer edge of the dandelion strip have a waxy waterproof layer.
The table shows the
students' drawings of the strips of dandelion stem.
Concentration of
sugar solution in
mol/dm3
Appearance of
dandelion strip
at start
Appearance of
dandelion strip
after 1 hour
00
0.2
Inner edge
dolion
0.4
>
)
( l
C
Outer edge
of the
dandelion
stem
0.6
0.8
(b) Explain the result for the 0.2 mol/dmø sugar solution.
No

In german cockroaches, curved wing (cv) is recessive to normal wing (cv+). bill, who is raising cockroaches in his dorm room, finds that the frequency of the gene for curved wings in his cockroach population is 0.6. in his friend joe’s apartment, the frequency of the gene for curved wings is 0.2. one day joe visits bill in his dorm room, and several cockroaches jump out of joe’s hair and join the population in bill’s room. bill estimates that, now, 10% of the cockroaches in his dorm room are individual roaches that jumped out of joe’s hair. what is the new frequency of curved wings among cockroaches in bill’s room? 0.69 0.4 0.5 0.31 0.20

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.