Which of the following best describes meiosis? A. It is carried out in all tissues that require cell replacement.

B. It occurs only in cells in the reproductive structures of organisms.

C. It happens in all tissues except the brain and spinal cord.

D. It is the first stage of mitosis.

Which box will not accelerate? 4 newtons 4 newtons 4 newtons 25 kg 4 newtons 15 newtons 10 kg 30 newtons 40 newtons 50 kg 30 newtons 30 newtons

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.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?