Can someone please tell me if I have the right answers?

Pasteur's experiments led to which theory?
A. biogenesis theory
B. endosymbiont theory
C. evolution theory
D. spontaneous generation theory
I think its A or D
Scientists have fossil evidence for which idea for the origin of life?
A. first amino acids
B. first RNA
C. first cells
D. first autotrophs
I think this one is A
Banded iron formations are important evidence for which idea I the early evolution of life?
A. photosynthetic autotrophs
B. endosymbiont organelles
C. heterotrophic prokaryotes
D. heterotrophic eukaryotes
I think this one is A

To determine if you have the right answers, let's break down each question and provide explanations:

1. Pasteur's experiments led to which theory?
A. biogenesis theory
B. endosymbiont theory
C. evolution theory
D. spontaneous generation theory

Pasteur's experiments disproved the idea of spontaneous generation, which is the theory that living organisms can arise from non-living matter. Instead, his experiments supported the theory of biogenesis, which states that living organisms can only be produced by other living organisms. Therefore, the correct answer is A. biogenesis theory.

2. Scientists have fossil evidence for which idea for the origin of life?
A. first amino acids
B. first RNA
C. first cells
D. first autotrophs

Fossils provide evidence of past life on Earth. Based on this question, scientists have found direct evidence in the form of fossilized cells, which suggests the existence of the first cells. Therefore, the correct answer is C. first cells.

3. Banded iron formations are important evidence for which idea in the early evolution of life?
A. photosynthetic autotrophs
B. endosymbiont organelles
C. heterotrophic prokaryotes
D. heterotrophic eukaryotes

Banded iron formations are sedimentary rocks that contain alternating layers of iron-rich and iron-poor minerals. These formations are believed to have formed due to the presence of abundant photosynthetic autotrophs during the early evolution of life. These autotrophs released oxygen through photosynthesis, which reacted with dissolved iron in seawater, leading to the formation of these distinctive bands. Therefore, the correct answer is A. photosynthetic autotrophs.

Based on the explanations provided, your answers should be:

1. A. biogenesis theory
2. C. first cells
3. A. photosynthetic autotrophs