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dmitriy555 [2]
3 years ago
10

What happens at each step of a dichotomous key? PLEASE HELP ME!

Biology
1 answer:
Yuki888 [10]3 years ago
5 0

Oh I know this, It narrows down its characteristics here is an example:

The first step in the key will be organized the following way:

1. a. wings covered by an exoskeleton

b. wings not covered by an exoskeleton

Next, the statements need to lead the observer to the next step to narrow the identification further:

1. a. wings covered by an exoskeleton go to step 2

b. wings not covered by an exoskeleton .go to step 3

Step 2 needs to consist of a pair of statements that will allow for the identification of the ladybug and the grasshopper:

2. a. body has a round shape .ladybug

b<span>. body has an elongated shape .grasshopper</span> 


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Answer:Tissue

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A 21-year-old college student presents for her first annual exam. She has been sexually active for 1 year and has had two partne
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4 years ago
If a person had not drunk any water for 8 hours before collecting a sample, would you expect his/her urine to have a high or low
Mrrafil [7]

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This explains why a person who had not drank any water for 8 hours and is dehydrated before collecting a sample is thought to have a urine with a high specific gravity

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3 years ago
Which is inversely proportional to weight on a plant's surfaces?
Oksana_A [137]

Answer:

The weight of an object at the surface of a planet is proportional to the planet's mass and inversely proportional to the square of the radius of the planet.

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3 years ago
Which of the following explains why nonrenewable energy resources are still so widely used. Select multiple
egoroff_w [7]
Non renewable resources can be very expensive, especially in capital outlay. For example, wind energy is very expensive to get started. The batteries alone are a headache. What do you do with those batteries whose life is over? How do you dispose of them? It isn't an easy problem to solve.

Then there's the labor part of wind energy. If they are manufactured in Denver Co and they receive an order from Maine, the blades require a wooden plywood box to be made. Plywood is roughly 20$ a 1/2 sheet (in Canada) to say nothing of the carpenter needed to make the box. I'm told that it takes a good day and one half just to make that box alone. That's for 1 blade. Then there's the shipping cost for 3 blades. Then there's the cost of making the blades which require highly skilled workers. 

Then there's the problem of wind, (or lack thereof). the problems just keep on going up and the expenses with them. 
6 0
4 years ago
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