Answer:White blood cells, also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells. Leukocytes are found throughout the body, including the blood and lymphatic system.
Explanation:
The correct answer is D. Plants are called autotrophs
Explanation:
If Eddie is authoring a book for kids on plants, the most important is to include key and accurate information about these living organisms such as their role in ecosystems and the way these obtain energy. In this context, the point Eddie needs to include is that plants are autotrophs, which means plants produce energy. This is possible through a process known as photosynthesis. that involves plants using water, sunlight, and carbon dioxide to synthesize energy. Also, this makes plants different from other organisms that need to consume others to obtain energy and are called heterotrophs. Thus, point D is the correct option because this describes a key feature of plants; also, other points are inaccurate.
Answer:
They are the same
Explanation:
A membrane pump is a protein embedded within the cellular membrane which helps the cell transport molecules into and out of the cell. The proteins help the cellular membrane's job of being semi-permeable (allowing certain things in and out). Some molecules cannot travel directly through the cellular membrane (ions, large polar molecules) and have to rely on these proteins to get through the membrane. There are two types, channel and carrier protein pumps. Channel proteins allow for simple passive diffusion where as carrier proteins can allow for active transport as they shape/conform in regards to the molecule they are transporting. Both pumps are specific in what they transport.
The chromosomes are in their condensed, highly coiled form, where they can easily fall without overlapping and staining will show a banding pattern.
