1a)Which of the Pollen grain will most likely fertilise the egg cell in the ovule why? a) pollen grain
B) stigma
write down a sentence why?


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Donde se encuentra el adn nuclear en un organismo eucariota?

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.