<span>President Abraham Lincoln issued the Emancipation Proclamation on January 1, 1863, whereas Dr. King gave his famous "I Have A Dream" speech on August 28, 1963. Therefore, over 100 years had passed between the two events, and while slavery had been formally abolished for that duration, the Civil Rights movement showed that there was still tremendous work to be done in ensuring equality and fair treatment for African Americans.</span>
This is more common sense rather than biology, but talking to someone would slow it down, so you know it’s not c or e. The best idea is b
Answer:
b
Explanation:
high pressure creates rain
Unicellular organism can
also be refers to as single-celled organism and they are made up of one cell compared
to multicellular organism that have more than one cell. These organisms fall
into two groups: prokaryotic organisms (bacteria and archaea) and Eukaryotic organisms (unicellular fungi, protozoa, unicellular algae).
Thus, unicellular organism
can live in hot or cold environment and these characteristic give hopes to
scientist that these organisms can be found in any other planets.
Answer:
1)Diffusion
2)yes, because of size difference
Explanation:
1) Biological cells live and grow by the inside and outside movement of molecules and diffusion is a process which takes place when molecules move from higher concentration area to lower concentration area. When cubes of agar alongwith indicator (phenophthalein) is added into vinegar, the hydrogen ions move from vinegar into the agar cubes and change in color appears. This change of color indicates the diffusion of vinegar into agar cubes
2) The diffusion distance differs between the cubes because of different sizes of the cubes. The difference in size results in difference of surface area which can be calculated by the volume of the cube. Larger the cube is, the more time vinegar will take to diffuse into the agar cube.