Natural selection can best be defined as the survival and reproduction of the organisms that are genetically best adapted to the environment. The correct option is D
Natural selection, which refers to the process by which particular features become more or less prevalent in a population over successive generations, is a key mechanism of evolution. It happens when people that possess specific favorable features have a higher likelihood of living and procreating, passing those traits down to their progeny.
These beneficial qualities become more prevalent in the population over time, improving the population's ability to adapt to the environment. Conversely, individuals with less advantageous qualities have a lower likelihood of surviving and procreating, which causes those traits to become less prevalent in the population. Populations gradually evolve and adapt to their unique habitats as a result of this process.
Therefore, (Option D) is correct.
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Answer:
d.
survival and reproduction of the organisms that are genetically best adapted to the environment
Explanation:
tissue in the hollow part of the bone
spongy bone
strong, dense outer layer of a bone
bone marrow
lightweight, inner layer of a bone that
contains many small spaces
Intro
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Answer:
strong, dense outer layer of a bone- compact bone
tissue in the hollow part of the bone- bone marrow
lightweight, inner layer of a bone that
contains many small spaces- spongy bone
Explanation:
Compact bone is also known as cortical bone and is a major property and source of skeletal frames in the body due to its strong, dense outer layer.
Bone marrow is the tissue in the hollow part of the bone. It is important as it helps in the production of blood cells
Spongy bone is also known as cancellous bone. It is the lightweight, inner layer of a bone that contains many small spaces which contains a high proportion of bone marrow.
Transpiration is the process by which plants return water from their leaves to the atmosphere as water vapor.
Transpiration is the process by which plants return water from their leaves to the atmosphere as water vapor. It is the loss of water through evaporation at the leaf surface.
Transpiration is driven by the evaporation of water at the leaf-atmosphere interface and creates negative pressure, which pulls water up from the roots. This process plays a crucial role in the movement of water in plants and the water cycle.
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C. Aorta
Answer:
The correct answer would be option B.
Sinoatrial node is also known as heart's pacemaker as it controls the heart rate.
It consists of cluster of cells in upper region of the right atrium. These cells generate electrical signals which are passed onto atrioventricular node.
It is the cluster of cells which is located at the centre of the heart.
It passes and slows down the electric signals to the ventricles.
b. hormone mimics
c. plastics precursors
d. industrial byproducts
Answer:
Endocrine disruptors are the synthetic or natural chemicals that may interfere with the functioning of the endocrine system in the human body. These chemicals mimic the naturally occurring hormones produced in the body like estrogen (a female sex hormone) and androgen (a male sex hormone) also these interfere with the production of the thyroid hormone. They bind to the receptors present in a cell and prevents the endogenous hormone from binding. The normal signaling process fails to respond properly.
Chemicals that functions as endocrine disruptors include dioxine, polychlorinated biphenyls (PCBs), pesticides and DDT.
Answer:
Its B- Hormone Mimics
Answer:
C.
Explanation:
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