how does tobacco smoke effect the body? a.it blocks hemoglobin from binding to oxygen, thus affecting gas exchange in the lungs b. it paralyzes cilia in the trachea allowing inhaled particles to enter the lungs c. it causes an increase in heart rate and blood pressure d.all of the above

Answer:

The correct answer would be the animal is visually appealing.

Endangered species are those which are on the verge of extinction in near future and require immediate steps for their conservation.

The principal threats to the species are:

• Loss of habitat due to human intervention such as deforestation, building of dams, agriculture practices et cetera.
• Spread of invasive species.
• Increased pollution and global warming.
• Unsustainable hunting of animals for products like fur, tusks, meat et cetera.
• Diseases  

The visual appearance of an animal is not a threat to the organism and thus, it does not determine if an animal should be placed on the endangered species list.

Answer: flows through wires of flashlight.

Explanation: When the flashlight is turned on, the chemical energy stored in batteries is converted into electrical energy that flows through wires of flof the flashlightshlight. This electrical energy is then transformed first into heat energy and then light energy.

Answer: The correct answer is D) Point.

Point is represented by a dot, which has no width, length or height.

On the other hand, angle is a figure formed with the help of two rays, which share a common end point.

Line is a segment, which consists of two end points whereas ray is a part of line having only one end point. Therefore, angle, line, and ray all three have width or length.

Thus, the correct option is Point.