Anyone please help me three question: Q1: A is wrong Q2: D is wrong nswers: 31.

Question

Anyone please help me three question: Q1: A is wrong Q2: D is wrong nswers: 31. Modern-day birds are MOST closely related to which of the following? O dinosaurs O lungfish O mammals amphibians 32. What is the predominant hypothesis to explain why animals only appeared in the fossi record about 3 billion years after life originated? O Animals are heterotrophic and couldn't evolve until there were enough photosynthetic organisms on Earth to support being eaten by animals. O There were animals 3 billion years ago, they just weren't fossilized. OAnimals are warm-blooded, and the ocean was too cold for animals to evolve 3 billion years ago. O Animals large enough to be recorded in the fossil record could not evolve until oxygen reached levels sufficient to support aerobic respiration.

Explanation / Answer

1. Modern day birds are most closely related to dinosaurs.

2. Animals only appeared after three billion years because :-

Animals large enough to be recorded in the fossil recordcouldnot evolve untilloxygen reached levels sufficient enough to support aerobic respiration.

3. Animals with bilateral symmetry typicallyhave :-

All are correct that is

Specialization for rapid locomation in all direction

Specialized appendaged along bith sides for locomation

Distinct front and back

Specillized semsory organs clustured at the front or head end

Complx behavior

Explanation- all are either facts or hypothesis.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.