The diagram below shows a food web in a woodland.

a food web diagram showing cornstalks with two arrows pointing away from it. one of the arrows points to the letter x and the other arrow points to a grasshopper. there are two arrows pointing away from the grasshopper. one is pointing to a baby sparrow and the other to the letter y. there is an arrow pointing away from the baby sparrow to a snake and an arrow pointing away from the letter x to the snake.

if a certain organism is a primary consumer, what best explains its position in the food web?

x, because organism x has the same role as the grasshopper
y, because organism y has the same role as grasshopper
x, because organism x has the same role as the baby sparrow
y, because organism y has the same role as the baby sparrow

The correct option is A.  X, because organism X has the same role as the grasshopper

Explanation:

In a food chain or a food web, a primary producer can be described as an organism which feeds on producers. The producers, in this case, are the corn stalks. Grasshoppers are primary consumers in this food web because they feed on the corn stalks. X is also a primary producer, just like grasshopper, because it feeds on the corn stalks which are the producers. Hence, option A is correct.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.