Answer:
D - Flowering plants and ferns have a more recent common ancestor than they do with spike mosses
Explanation:
The answer would most likely be B, diffusion. Diffusion is the process of molecules going from an area of higher concentration of those particles (around Tammy) to an area of lower concentration (around Jim who is across the room), without the use of energy, as they are going with the concentration gradient (higher concentration to lower concentration). In this question, the molecules would be the molecules of Tammy's perfume. The area around her has a higher concentration of perfume particles, as she sprayed the perfume on herself. The area around Jim would be the area of lower concentration, as there are less molecules of perfume around him. Osmosis is the diffusion of water molecules from an area of higher water concentration to an area with a lower water concentration through a semi-permeable membrane. Active transport is the process of diffusion, however, it requires energy as the molecules go across their concentration gradient (from low concentration to high concentration). Facilitated diffusion is the process by which molecules go from a higher concentration to a lower concentration. However, the molecules go through a cell's membrane with the aid of proteins on the membrane. Therefore the answer would be diffusion.
Answer:
Orca inhaled oxygen and exhaled carbondioxide just like humans and other mammals.
Orcas is a type of whale which breathe air through their lungs not gills. They can't inhale oxygen from water, it comes to the surface in order to inhale oxygen and exhale carbondioxide.
In Orca breathing is not an automatic reflex but a conscious act due to the environmental condition. When orcas come to the surface to breathe they must quickly expel the carbondioxide gas and inhale oxygen into the lungs so we can conclude that Orca breathe just like humans and other mammals.
Explanation:
Answer:
consists of solid rock
Explanation:
Bed rock are solid rock material usually below the soil surface.
They are found at the ocean floor under sediment and other solid materials. Saprolite are bed rocks that have been weathered they are found above the bed rock overlaining it,
saprolite have different composition because it has gone through chemical weathering.
Above saprolite are soil and other loosed particle.
when the depth and structure of a bed rock is determined it help tell about the history of a place.
B. the number is limited by how much is lost at each level
