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:
Fact: a thing that is known or proved to be true.
Hypothesis: a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
Theory:a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
Law: a statement of fact, deduced from observation, to the effect that a particular natural or scientific phenomenon always occurs if certain conditions are present.
Explanation:
Note: these are not my words, credits to google search.
Answer:
c
Explanation:
I think I remember fro.5th grade
the answer is negative marked as brianlest??!!!
For the frog heart, temperature and heart rate are "directly proportional."
