Answer:
Because humans liter on beaches and around the world.This can cause sea turtles to eat trash and get trash stuck up there noses.Also when sea turtle lay eggs on the beaches humans tend to step on them and that is a sense of human activity that can affect the sea turtle population.
Explanation:
I really hope this helps.;)
Answer:
Kid I'm going to help you because well know is going to help you so today is your lucky day.
Explanation:
Cell Membrane-The protective barrier that encloses all cells and holds the cell together while allowing materials such as nutrients and wastes in and out the cell.
Cytoplasm-The syrup-like liquid that surrounds and protects the organelles inside of a cell.
Nuclues- is a membrane-bound organelle that contains the cell's chromosomes.
nucleolus- is a region found within the cell nucleus that is concerned with producing and assembling the cell's ribosomes.
Rough endoplasmic reticulum (RER) - a series of connected flattened sacs, part of a continuous membrane organelle within the cytoplasm of eukaryotic cells, that plays a central role in the synthesis of proteins.
Smooth endoplasmic reticulum (SER)- a meshwork of fine disklike tubular membrane vesicles, part of a continuous membrane organelle within the cytoplasm of eukaryotic cells
Golgi complex-The organelle that packages and distributes proteins both within and to the the OUTSIDE of the cell.
lysosome is a membrane-bound cell organelle that contains digestive enzymes. ... They break down excess or worn-out cell parts
mitochondria
-The main source of energy for the cell.
Vacuole- a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid.
chloroplast- given photosynthesis to the plants
Cilia and flagella are projections from the cell.
Cyclin-depedant kinases (Cdks).
The vertebral column, when seen from the side, has 4 curves: 2 convex curves (cervical and lumbar curves) and 2 concave (thoracic and sacral curves). This curves are the feature of the skeleton that allow a child to maintain balance in the upright position eventually.
When we are born we have a single concave curve throughout the whole vertebral column but, as we grow, still in the early months as we try to hold our head, the cervical curve starts to develop, and later, as we try to sit up, stand up, and walk, the lumbar curve aslo starts to develop. In few years we have all curves fully developed.
