Adaptation: Question 7
Which BEST explains why a population of a certain species of cactus developed longer spines over time?
Select one:

An animal migrated into the area, and it could only eat short-spined cacti.

A reptile moved into the area, and it could only eat cacti with either very short or very long spines.

A bird migrated into the area, and it could only eat long-spined cactus.

A mammal migrated into the area, and it could only eat cacti with medium-length spines.

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

fossil's are like over rated rocks like low key not gonna lie i don't get why we can't just call them old rocks like for real i mean i call my grandpa and grandma that smh