The right options are;
A.The population of pink katydids will decrease.
B.The population of green katydids will decrease.
What will eventually happen to the population of the katydids is that the population of both the pink and green katydids will decrease. The predators which are the birds that feeds on the katydids (prey) will negatively influence the size of the prey populations by reducing them.
I think the answer is A. But then it could be C.
A because why just test men, when woman can have heart attacks too?
C because 20 people is not enough to test.
Maybe go with C
Please tell me if it was right!
Options:
a. It is a type of virus that infects bacteria.
b. It is a type of bacteria that infects viruses.
c. It is a virus consisting of a protein coat and a DNA core.
d. It is a bacterial strain consisting of protein and a DNA core.
Answer:
<u>Option-(A, C):</u> It is a type of virus that infects bacteria, and it is a virus consisting of a protein coat and a DNA core.
Explanation:
- The bacteriophage is a form of unicellular cell that comprises of a very specific form of structure, having the genetic materials intact inside the protein coat and the rest of the body is termed to be more of a crystalline in nature. As, the phage is categorized for having the main host as the bacterial cell, and it replicates itself by using the two main pathways which are the following:
- Lytic cycle,
- Lysogenic cycle.
Answer: C. Black snakes will not prey on cane toads in areas where cane toads have been present for 40–60 years.
Explanation:
Cane toad secret a toxin called bufotoxin which is a defense mechanism against predators. These defense mechanism is capable of killing black snakes if they eat cane toads. Within a period of 40 to 60 years, the black snakes in these area will be aware of the presence of a toxin capable of killing them in cane toads and will not prey on them. This phenomenon is termed learned behavioral adaptation.