Answer:
Thats WBCs cell which perform phagocytosis
Answer:
option 4, y=1/4x+16
Explanation:
to solve this you must find the slope and the y intercept.
slope is rise/run, and equal to 2/8 or 1/4
then, the find the y intercept, find where the line crosses the y axis. Here it is 16.
finally you plug these answers into the slope intercept form, y=mx+b. In this form, m= slope, x=days, and b= y intercept.
after you plug in your answers you are left with y=1/4x+16.
1, as the energy comes from the sun, then plants get it through photosynthesis, and finally the consumers obtain the energy from consuming animals on a lower trophic level than themselves. energy cannot flow down the food chain, only up.
Answer:
E
Explanation:
Wind blowing across the body surface increases transpiration of the skin. The winds reduce the local air pressure above the skin allowing the sweat to evaporate faster. As the sweat evaporates, it carries with it heat from the body. This cools the skin much faster than on a non-windy day. This is why a breeze feels so cool on the human skin on a hot day.
Answer:
The light from Alpha Centauri system takes 4.37 light-years and Sirius star system takes 8.6 light-years to reach the Earth.
Explanation:
Light from millions of stars in more distant galaxies takes a long time to reach the Earth. Light travels at a speed of 300,000 kilometers per second. The time taken for light from these stars to reach the Earth is the distance to the star divided by the speed of the light. The distance traveled by light in one year is known as a light year and the distance to the stars that are farther away is expressed in light years.
The Sun is the closest star to the Earth and the sunlight takes about 8.3 minutes to reach on Earth. Apart from the Sun, the other stars closest to Sun include Alpha Centauri system and the Sirius star systems.
The Alpha Centauri system includes the stars Alpha Centauri A, Alpha Centauri B and Proxima Centauri. This system is 4.37 light-years away from the Earth. The third star, Proxima Centauri is 4.24 light-years away from the Earth i.e., the light from it takes 4.24 years to reach the Earth.
The Sirius star systems include Sirius A (Dog Star) and Sirius B. It is about 8.6 light years from Earth and so the light about 8.6 years to reach the Earth.
