If earth is about 4.5 million years old which statement is true

Which term describes the procedure of selecting a specific group of organisms from an initially heterogeneous population for future breeding purposes?

Certain stem cells in the eye can differentiate into only a few types of eye cells. What kind of stem cell is this? A. Pluripotent B. mutlipotent C. Totipotent D. Unipotent

In protostomes, Group of answer choices there is no body cavity. there is no ectoderm. the opening formed during gastrulation becomes the mouth. there is no endoderm. the opening formed during gastrulation becomes the anus.

What does estrogen do?

Which statement best describes the primary difference between scientific investigation and technological design? Scientific investigation is more time consuming than technological design.

Which process produces two genetically identical somatic cells?

What type cell undergoes meiosis?

What type of instrument measures seismic waves? A. Mercalli scale B. Seismogram C. Seismic scale D. Seismometer

Which of the following is composed of two layers of lipids and protects the cell from the surrounding environment? Select one: a. cytoplasm b. cholesterol c. cell membrane d. carbohydrate

Predict how the thickness of cuticle and the number of stomata differ in plants from wet habitats versus dry habitats. drag the appropriate items to their respective bins.