Which phase of meiosis lines the chromosomes up in the center of the cell? metaphase I What phase do chromosomes line up in the middle? During metaphase, the cell’s chromosomes align themselves in the middle of the cell through a type of cellular “tug of war.” The chromosomes, which have been replicated and remain joined […]

What is the best description of a convergent boundary? A convergent boundary (also known as a destructive boundary) is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction. The subduction zone can be defined by a plane where many earthquakes occur, […]

Where does the process of digestion begin? The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food. What comes […]

How do muscles get oxygen and glucose during exercise? Oxygen is then carried to the muscles via red blood cells. And whether you’re exercising or not, the oxygen in your body is used to break down glucose, creating fuel for your muscles–that is, adenosine triphosphate, or ATP. This molecule is the source of energy that […]

What is scientific knowledge mean? Scientific knowledge is what we learn from the scientific process, which involves experimenting and collecting data. Scientific research is the collecting of data to investigate and explain a phenomenon. Part of the scientific process concerns what you do after data has been collected. What is Nature of Science meaning? Nature […]

Which of the following is a function of the nucleus stores DNA? stores DNA. The nucleus stores the coded instructions for making the cell’s proteins. The nucleus usually contains a nucleolus region which is where ribosome assembly begins. Which of the following functions is the nucleus responsible for? The nucleus controls and regulates the activities […]

What is the 10% rule in ecology? 10% law. When organisms are consumed, approximately 10% of the energy in the food is fixed into their flesh and is available for next trophic level (carnivores or omnivores). When a carnivore or an omnivore in turn consumes that animal, only about 10% of energy is fixed in […]

Why photosynthetic cyanobacteria were likely the first organisms to survive and thrive in the harsh conditions on early Earth? Because they are bacteria, they are quite small and usually unicellular, though they often grow in colonies large enough to see. They have the distinction of being the oldest known fossils, more than 3.5 billion years […]

What part of the microscope helps adjust brightness? Diaphragm or Iris: The diaphragm or iris is located under the stage and is an apparatus that can be adjusted to vary the intensity, and size, of the cone of light that is projected through the slide. How do you make a picture brighter on a microscope? […]

Why is cellular differentiation important to complex organisms? While it plays a significant role in embryonic development, the process of cell differentiation is also very important when it comes to complex organisms throughout their lives. This is because of the fact that it causes changes in size, shape, metabolic activities as well as signal responsiveness […]