Answer:
Option A, most closely related to mammals
Explanation:
Insects like arthropods and molluscs have an open circulatory system and thus do have a distinguishable heart. Fish has two chambered heart. Reptiles have three chambered heart. Amphibians too have a three chambered heart.
All mammals and fish have four chambered heart. The right and left sides of the chambers have restricted entry and hence remain intact from each other
Hence, option A is correct
Answer:
Earth, both on land and in water. Wherever they
live, plants provide food and oxygen to the
creatures that live nearby – including humans!
In this activity we will examine both a
terrestrial (land) plant and an aquatic (water)
plant. They have many things in common, but the
ways they get air, food and water change along
with the environments in which they live.
Explanation:
Answer:
Decrease
Explanation:
Acceleration is inversely proportional to the mass of an object.
Acceleration decrease as the mass of the object increase
If u use the formula F=ma to calculate, you will get
a=0.5m/s2 for the first situation (m=10kg) and a=0.25m/s2 for the second situation (m=20kg)
