5. The diagram shows cells in the epidermis
of a leaf
Q
To complete the diagram, which structural features should be added to the cells P and Q?
P
O
nucleus
chloroplasts
nucleus
chloroplasts
X
A
x
✓
B
D

Afamily has a y-linked disease that affects the father. what is the chance of a male offspring inheriting the same disease? oa. 100% ob. 50% oc. 25% d. 0%

When analyzing tree rings, what do scientists assume a thin ring indicates?

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems