The spiders that survived the first pesticide spraying were resistant to the pesticide and when they reproduced most of their offsprings got the gene of pesticide resistance.
Answer:
The somatic cells of fruit flies contain eight chromosomes, which means they have two sets of four chromosomes. Meiosis is the process by which sex cells are produced. Sex cells are haploid, which means they have one set of chromosomes.
Explanation:
Answer:
The Full Moon Phase
Explanation:
After 14 days, the moon is 180 degrees away from the Sun, with the Sun, Earth and Moon, forming a straight line. The moon would completely be illuminated by the Sun. Hence, this is called the “full moon phase.” This is the only time during the entire month when the Earth's shadow could be close to the moon.
Answer:
I think it's A. The contraction of the triceps muscle causes the arm to flex.
Explanation:
The contraction of the triceps muscle causes the arm to flex. The contraction of the triceps muscle causes the arm to extend. When added to the force of the biceps contracting it provides the extra force to the ball.
Microscope. You would place the specimen on the glass slide and then slide the glass slide underneath the microscope.
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