Efficiency is

a.

the percentage of energy lost to the surroundings as heat.

b.

the percentage of energy that is actually used to perform work.

c.

the entire amount of energy.

d.

the time it takes for half of the energy to be used.

In a biology lab exercise, you are asked to examine cells of a growing onion root tip, that has been sectioned to show many cells. in most of the cells, you easily see the circular or oval nucleus as a uniformly filled space in a membrane outline.

Describe an event that will most likely change the dominant plants in an ecosystem from large trees to grasses.

Do different kinds of plants live in different kinds of environment

The purpose of photosynthesis is to produce usable chemical energy or glucose from solar energy. If the formula for glucose is C6H12O6, how many atoms of carbon are used to produce the glucose?

How has coronavirus affected the environment

When cells divide during meiosis homologous chromosomes are randomly distributed to daughter cells and different chromosomes segregate what of each other?

What do all wetlands have in common? A. They lack life-forms. B. They are highly polluted. C. They are swamps. D. They recycle nutrients into the soil.

Lysis of adhesions is performed on either the fallopian tubes or the: answer vagina uterus ovaries vulva

What is the relationship between DNA and chromosomes? a. Chromosomes are made out of DNA. b. DNA is made out of chromosomes. c. DNA and chromosomes are the same thing. d. DNA forces chromosome to mutate.

When scientists uncover a fossil, they record the precise location where the fossil was found. Does this location provide useful evidence for conclusions about the fossil and evolutionary processes? A. Yes.