<span>a small dense spherical structure in the nucleus of a cell during interphase. I'm pretty sure its D
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The correct option is B: MAJOR DIVISIONS IN THE SEDIMENTARY ROCK LAYERS.
Geologic time scale refers to a system of chronological dating which relates geological strata to time. Geologic time scale is used by scientists to describe the timing of the events that had occurred in the past, thus the scale divides the earth history into units of varying magnitude. There are four basic block of time, these are eons, eras, periods and epochs.
In determine geological time, rock records provide evidence of past geological events and life forms.
Answer:
A
Explanation:
Without organizing you can go on with the next steps since data alone is worthless but information (organized data) is the most important thing for a scientific investigation.
Answer:
The correct answer would be the active transport across the cell membrane.
The main functions of the cell membrane are a barrier, regulates transport (passive, facilitated, and active), the presence of receptors et cetera.
Only active transport (such as sodium pump, calcium pumps et cetera) requires the input of energy (ATP) for proper functioning. It uses energy to pump substances against the concentration gradient.
Thus, only active transport would be affected if less cellular energy is available.
Answer:
- Parallel arrangement of collagen fibers: Dense regular connective tissue (CT)
- Transports oxygen and hormones: Bood
- Contains chondrocytes: Cartilage
- Stores minerals: Bone
- Random arrangement of collagen fibers: Dense irregular connective tissue (CT)
- Cushions and insulates: Adipose tissue
Explanation:
The dense regular connective tissue (CT) is a type of connective tissue composed of collagen fibers arranged in a parallel pattern which provides a strong association between tissues (e.g., tendons and ligaments). Conversely, in dense irregular connective tissue, collagen fibers are not arranged in parallel bundles (e.g., the dermis in the skin and lamina propria in the gastrointestinal tract). Cartilage is a type of flexible connective tissue composed of chondrocytes, the unique type of cells in cartilage tissues. Chondrocytes are responsible to produce and maintain the collagen extracellular matrix (ECM) which is composed mainly of collagen and proteoglycans (proteins coated with sugar molecules). Bone is a type of connective tissue composed of cells (i.e., osteoblasts, bone lining cells, osteocytes, and osteoclasts), fibers and ground substance. Bones have many functions including, among others, store minerals (calcium and phosphate), protect internal organs, allow movement, provide internal support, etc. Blood is a type of connective tissue (because blood has a matrix) whose main function is to transport oxygen (O2) and essential substances (e.g., nutrients, hormones, etc) to the tissues, and carbon dioxide (CO2) from the tissues to the lungs. Blood contains two different types of cells: red blood cells (i.e., erythrocytes) and white blood cells (i.e., leukocytes). Finally, adipose tissue is a special type of connective tissue in the subcutaneous layer that helps to cushion and insulate the body (providing insulation from heat and cold). Adipose tissue is composed mostly of adipocytes, which are cells that store energy in the form of lipid molecules.
