The anterior side of the heart is the side the uppermost point or peak is pointing to. The posterior surface lies opposite to the uppermost point.
<h3>What is heart?</h3>
The heart is a fist-sized organ that is located around the chest region or breast bone that pumps blood to the body. It's the primary organ of the circulatory system. The heart have four main chambers made of muscle and powered by electrical impulses. The brain and nervous system influence heart's function.
Therefore, The anterior side of the heart is the side the uppermost point or peak is pointing to. The posterior surface lies opposite to the uppermost point.
Learn more about heart here.
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Answer: The correct option is A.
Explanation:
This is because inbreeding is the mating or organisms that are genetically related in one way or the other and it go against interchanging of DNA. This normally result in recessive traits in a population and bring about the same traits.Therefore there is more possession of two identical traits in the population and there is decrease in genetic variation because of the similar traits in offsprings genome.
Answer:
Cell ultrastructure and functions to include:
cell walls
mitochondria
chloroplasts
cell membrane
vacuole
nucleus
ribosomes
plasmids
using examples from typical plant, animal, fungi and bacteria cells.Cytoplasm: The cytoplasm is the liquid part of the cell. It consists mainly of water and has many different substances dissolved in it. Many of the cell's chemical reactions occur in the cytoplasm.
Cell membrane: The cell membrane contains the contents of the cell and provides a barrier to control what enters and leaves the cell. The cell membrane is often described as "selectively permeable" as it allows some but not all substances across (permeable) and can choose which substances can pass across (selective). We'll learn more about this in the transport topic.
Nucleus: The nucleus controls everything which takes place in the cell. It does this as it is the site of the cell's DNA. DNA contains the genetic code which is translated into proteins. All of the chemical reactions which take place in cells are controlled by these proteins. You'll learn more about all of this in the DNA and Enzymes topics.
Mitochondria: Mitochondria are the power houses of animal, plant and fungal cells. They are found in the cytoplasm and the majority of the respiration chemical reactions take place in the mitochondria, which releases chemical energy from food molecules. Obviously, we'll discuss this in more detail in the Respiration topic.
Ribosomes: Ribosomes are tiny structures which are also found in the cytoplasm. Ribosomes are the sites of protein production in cells. We'll discuss this in more detail in the DNA & Protein Production topic.
Although the diagram above shows the typical structures of an animal cell, very few animal cells would actually look anything like this. Animal cells are specialised for their functions. Look at the following diagrams of different animal cells...why do they have different structures?Red Blood Cell: Biconcave shape provides a large surface area to absorb oxygen. Also mature cells have no nucleus to increase the volume of the oxygen-binding haemoglobin protein molecules.
Nerve Cell: Long, thin shape to transmit nerve impulses. High concentration of mitochondria to provide energy for nerve impulse transmission.
Small Intestine Epithelial Cell: Large surface area of membrane lining the gut to absorb the products of digestion. High concentration of mitochondria to provide the energy required for active transport.
Explanation:
Answer:
Field primatologists also study primates to primarily improve their conservation status, perhaps by conducting regular monitoring surveys to inform management strategies, or engaging more closely with local communities to sensitise them on the threats to endangered species.