1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tresset_1 [31]
3 years ago
5

A woman treated her home with a pesticide that kills spiders. The first application killed 78% of the spiders. Two months later

she applied the pesticide again, but it only killed 45% of the spiders. What would best explain the decrease in the effectiveness of the pesticide?
Biology
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0
The spiders have became resistant to the pesticide.
You might be interested in
What is the difference between code, codon, and anticodon?
NeX [460]
The codon is a set of 3 nucleotides that can be read to convey a message in your DNA. It can be a code saying to "start" the process of protein synthesis, or "stop" it, or to encode for an amino acid - the building blocks of proteins. 
<span>The DNA is read, and proteins are made by DNA Polymerase (simple version here, it is more complicated, but this is the gist of it) travelling down the DNA. As it travels, it reads the nucleotides and builds a chain of amino acids, that corresponds to the information gleaned from the DNA. </span>
<span>So, the codon is only on one side of the DNA, and there are 2 sides. In order to be able to keep the DNA safe, and package it well (and loads of other reasons ) there is a complimentary strand. The nucleotides that make up DNA are A, T, C, and G. A links to T and C to G, and vice versa. </span>
So if your DNA strand's codons read "AAG AGG TCA"
Then the complimentary strand will read "TTC TCC AGT" the three codons on the complimentary strand ARE THE ANTICODONS of the codons on the strand being read (aka "expressed").
<span>So a codon and an anti codon are made of the same things, it just is a matter of which is being actively expressed. Now, this gets insanely complicated when you learn more about reading frames! Not only are there those codons, but if you shift and start reading the "code" either one nucleotide earlier or later, it completely changes the message.</span>
7 0
3 years ago
How cytoplasm acts as a 'ground substance' for all cell activities?
Maslowich
The cytoplasm , because it’s like a fluid that fills in the cell .
8 0
3 years ago
Worth 100 points help<br><br> Explain why high and low tides occur well please
slega [8]
<span>The high and low tide are caused by the gravitational forces between the earth and the moon</span>
7 0
3 years ago
Read 2 more answers
4. Juan’s family has a history of sickle cell disease. His father died of sickle cell disease complications when Juan was six ye
r-ruslan [8.4K]
Sounds like juan has a hard life. LOL CYANIDE CAPSULES?
5 0
3 years ago
A fossil is found that shows the organism that produced it had a skeleton and also suggests that the organism may have had hair
Schach [20]
I believe it is the second option 
Eukaryota and most likely produces milk to feed its young
8 0
3 years ago
Read 2 more answers
Other questions:
  • You will observe each rabbit population for one year, collecting information throughout the year
    15·1 answer
  • What is a seed discovered and when planted grew to be a large flowering plant
    7·1 answer
  • Name the sac like structure which form the grana
    15·1 answer
  • What is energy?grade 8
    9·1 answer
  • Compare and contrast the alpine and taiga biomes.
    13·1 answer
  • Some proteins on the surface of a mammalian cell contain carbohydrates. These proteins are synthesized by _______ and the sugars
    8·1 answer
  • A 16 year old highschool student presents in the ER with a fever, stiff neck, headache and nausea. You order a spinal tap to be
    12·1 answer
  • Explain the function of receptors and their location(s) in the cell.
    11·1 answer
  • Match the activities to their respective categories.
    11·1 answer
  • Biological systems examples that can be found during a nature walk, such as cellular respiration ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!