The United States are entirely located in the Northern Hemisphere. It is bordering Canada on the north, and the air masses that form over it have big influence on the climate of the United States. Most of the United States falls under the influence of the air masses coming from the north, with only the southern parts of the east and west coastlines not being heavily affected. The air masses that form over Canada are cold continental air masses. They move towards south, thus toward the United States in November, quickly pushing the warmer air masses, and replacing them, bringing in cold weather conditions, which last until March.
The answer is theory which is a proposed explanation whose status is still conjectural and subject to experimentation, in contrast to well-established propositions that are regarded as reporting matters of actual fact.
A function of the structure that is represented in the image is it: controls the movement of substances into and out of cells.
What is the function of a cell?
Cells are the basic building blocks of all life. They are in charge of generating the energy that sustains life, eliminating waste, and procreating to replenish damaged tissues. Everything from single-celled organisms to humans may perform complex functions thanks to cells and the various actions of the parts that make them up.
One cell, which contains the DNA, ribosomes, cytoplasm, and cell membrane of certain living creatures, makes up that organism. For instance, the majority of bacteria also occasionally include the cell wall and the most basic parts of a cell. However, microbes still have the power to infect humans with diseases ranging from a mild case of food poisoning to lethal tuberculosis. However, they can also promote human health.
Hence the correct answer is A; controls the movement of substances into and out of cells.
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I believe the answer is A. because once the allele changes the future populations will change along with it... hope i helped !
Answer:
B. Cells
Explanation:
The plasma membrane is one of the essential structural and functional components of all the cells. It maintains the cell's interior and regulates the entry and exit of substances into and out of the cells. Both prokaryotic and eukaryotic cells have a plasma membrane.
Plasma membrane forms the outer most covering of an animal cell. Plant cells and bacterial cells have a cell wall outside the plasma membrane. Irrespective of the cell type, the plasma membrane is made up of a bilayer of phospholipids with a hydrophobic core. Several proteins are embedded in the lipid bilayer.