Answer:
Hector spent the last three months on a winter fishing boat in alaska. he was doing research on population levels of fish for conservation efforts. hector most likely works in. plant systems.
Explanation:
plz mark it the brainliest
Human exploitation of fragile ecosystems can lead to the droughts and arid conditions characteristic of desertification. Effects include land degradation, soil erosion and sterility, and a loss of biodiversity, with huge economic costs for nations where deserts are growing.
Amphibians have three heart chamber and they lay eggs so
AMPHIBIAN
Answer: Sea stars move using a water vascular system. Water comes into the system via the madreporite. It is then circulated from the stone canal to the ring canal and into the radial canals.
Explanation: The radial canals carry water to the ampullae and provide suction to the tube feet.
Answer:I need points 5 please 200000
Explanation:
Thank u
