Answer:
they're called trace fossils
Answer:
the answer is correct since species undergo evolutionary changes over time
Explanation:
These evolutionary changes are due to the fact that there could be modifications in the environment of living organisms, that is, in the water, which leads to different populations over time.
Biological domain Animalia is <u>heterotrophic</u>
Answer: Option B
<u>Explanation:</u>
The Animalia kingdom follows the heterotrophic mode of nutrition which means it depends on other organisms for their nutrition while autotrophs produce their own food. Carbon is the main source of energy. The heterotrophs get carbon from consuming these organic resources.
The cells are eukaryotic and they are multicellular organisms.They do not have a cell-wall. They intake large molecules and using their different organ system break down the food into simpler substances which provides nutrition and energy for the organism to survive.
Answer: No
Explanation: Usually a mother and baby's blood do not mix while the baby is in the womb. The mother's blood runs alongside the placenta, and the nutrients needed by the baby are absorbed and transferred to him/her.