Question

answer the two questions on the slide by using the drawing tool or adding a text box. remember, you have access to the calculator on the computer! :) a. use the key to calculate how many total known species there are. b. calculate the approximate percentage of insects. key insects 925,000 non - insect arthropods (including spiders and crabs) 123,000 chordates 43,000 other animals (including worms, clams, and snails) 116,000 protists 30,000 fungi (including mushrooms) 69,000 algae 27,000 vascular plants (including trees and ferns) 248,000

Explanation:

Part a

Step1: Sum all species counts

We add up the number of species for each category: insects (925,000), non - insect arthropods (123,000), chordates (43,000), other animals (116,000), protists (30,000), fungi (69,000), algae (27,000), and vascular plants (248,000).
The formula for the total number of species \(T\) is:

$$T = 925000+123000 + 43000+116000+30000+69000+27000+248000$$

First, add 925000 and 123000: \(925000 + 123000=1048000\)
Then add 43000: \(1048000+43000 = 1091000\)
Then add 116000: \(1091000+116000=1207000\)
Then add 30000: \(1207000 + 30000=1237000\)
Then add 69000: \(1237000+69000 = 1306000\)
Then add 27000: \(1306000+27000=1333000\)
Then add 248000: \(1333000+248000 = 1581000\)

Step1: Recall percentage formula

The formula for the percentage of a part (insects) out of a whole (total species) is \(\text{Percentage}=\frac{\text{Number of insects}}{\text{Total number of species}}\times100\%\)
We know the number of insects \(I = 925000\) and the total number of species \(T = 1581000\) (from part a).

Step2: Calculate the percentage

$$
LATEXBLOCK0
$$

Answer:

(Part a):
The total number of known species is \(1581000\)

Part b