Answer:
The pebbles inside the rock.
Explanation:
The outside of the rock would've formed around the pebbles.
C. Parasitism because fleas don’t offer any purpose but to hurt the dog
Fetal pigs' right and left lungs have different numbers of lobes because the left lung needs to really be smaller to make room for the heart.
<h3>Do fetal pigs that will be dissected die?</h3>
Fetal pigs are really the piglets that sows who were slaughtered for the meat industry were still carrying. Instead of being produced and murdered for this reason, these pigs are taken from the uterus of a dead sow. Piglets that aren't utilized for classroom dissections are frequently used as fertilizer or are just thrown away.
<h3>How are human and pig fetuses different?</h3>
The uterus and liver of a fetal pig are different from those of an adult human. Bicornate uterus is what the fetal pig's uterus looks like. To allow for many offspring, the pig uterus features two sizable horns that emerge from the body of the uterus.
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