What produces sperm cells?

a) replication

b) fertilization

c) meiosis

D) mitosis

1. What is different about the rock formations in the Rocky Mountains and Great Plains? Explain 2. Explain how the materials that turned into the rock formations in the Rocky Mountains and Great Plains were formed? 3.

What kind of electrical charge is found on the oxygen atom of a polar water molecule

An area with bare rock or a disturbed site with no vestige of its former community (e. g., one that experienced a volcano or landslide resulting in exposed bare rock) undergoes secondary succession while an area recovering from forest fire undergoes

Fill in the blanks Surface water evaporates into the (Blank). Plants take up water from the soil, and water evaporates from leaf surfaces into the atmosphere through (Blank) .

7) Labrador retrievers have 78 chromosomes in each of their muscle cells. Which biological process ensures that a male Labrador's sperm cells will each have 39 chromosomes? * Mitosis Meiosis Binary fission Budding

Statistics about the climate in a tundra ecosystem were collected for 30 years. which hypothesis about a population of caribou could be made based on the climate data collected? a. caribou calf survival is directly related to annual rainfall amounts.

Since plant cells do not have centrioles, how do they make spindle fibers during mitosis?

Plants use sunlight to produce some ATP during photosynthesis. How do plants produce ATP when the Sun is not out? a. Plants are secondary consumers. b. Plants also use cellular respiration. c. Plants extract ATP from the stars. d.

Describe 4 ways that we know the global climate is changing

What does each individual node in a cladogram represent