Biology, 30.11.2019 14:31 Viishnu15

Use this dichotomous key for insect identification to identify the insect shown.

1. a. insect has one pair of wings. order diptera
b. insect has two pairs of wings. go to #2.

2. a. insect has an extremely long neck. go to #3.
b. insect has a regular length or no neck. go to #4.

3. a. forelegs come together in a “praying” position. order mantodea
b. forelegs do not come together in a “praying” position. order raphidoptera

4. a. wings in front are armor-like over hind wings. order coleoptera
b. wings are not armor-like. go to #5.

5. a. wings twist when the insect is in flight. order strepsiptera
b. wings flap up and down (no twisting) when the insect is in flight. go to #6.

the insect pictured is in the order
strepsiptera.
mantodea.
raphidoptera.
coleoptera.

Use this dichotomous key for insect identification to identify the insect shown. 1. a. i

Answers: 3

Show answers

Another question on Biology

Biology, 21.06.2019 16:30

Because of its structure the cell membrane is known as a phospholipid ? a.bilayer b.molecule c.fluid d.barrier

Answers: 1

Answer

Biology, 21.06.2019 19:40

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

Answers: 1

Answer

Biology, 21.06.2019 20:40

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

Answers: 3

Answer

Biology, 22.06.2019 17:00

The open ocean of any depth is called the

Answers: 1

Answer

You know the right answer?

Use this dichotomous key for insect identification to identify the insect shown.

1. a. i...

Questions