Teratogens are agents or factors that causes malformation of an embryo they include alcohol,cigar smoke, drugs, maternal stress and paternal age. At the embryonic period the unborn baby is at a very high risk of developing structural defects ddue to the effects of teratogens. Teratogens may lead to abnormal development in muscles, tendons and bones.
Answer:
182,500 units.
Explanation:
<em>The answer would be </em><em>182,500 units of mercury.</em>
<u>Assuming there is an average of 365 days in a years, 10 years is therefore equal to:</u>
10 x 365 = 3650 days.
<u>The stingray eats 50 clams per day. Hence, the total number of clams that would have been eaten in 10 years equals:</u>
3650 x 50 = 182,500 clams
<u>Each clam accumulated 1 unit of mercury in its body from the water it lives in and there is no loss of mercury between the clam and the stingray. Hence, the total number of units of mercury the stingray would have accumulated in 10 years equals:</u>
182,500 clams x 1 unit = 182,500 units of mercury.
Nitrogen-fixing bacteria are microorganisms present in the soil or in plant roots that change nitrogen gases from the atmosphere into solid nitrogen compounds that plants can use in the soil.
S waves are slower than P waves and they can only travel through solid rock. S waves move the particles it pushes through up and down or side to side (perpendicular to the motion of the S waves energy).
