BIOLOGY MIDDLE SCHOOL

The greenhouse effect is increased the most by _____.burning coal
nuclear reactions
refining oil
mining coal

Answers

Answer 1
Answer: the answer is burning coal! Please forgive me if I get this answer wrong!
Answer 2
Answer: I think it's nuclear reaction, not so sure but I think that is the answer

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in humans, having wet earwax is a dominant trait. Having dry earwax is recessive. a man has one recessive allele and one dominant allele and a woman has has two dominant alleles. if this man and woman have a child, is it possible for their child to have dry earwax? Explain.

Answers

No, it is not possible for them to have a child with dry earwax. In order for them to have a child with dry earwax, the child must have two recessive alleles in that trait. As the father is the only one who has one, there will be a 50% chance of heterozygous offspring, and a 50% chance of homozygous offspring in the dominant allele - no homozygous offspring in the recessive allele.

Which of the following is one of the basic elements of life?A. Sodium
B. Water
C. Nitrogen
D. Air

Answers

Answer:

Nitrogen is one of the basic elements of  life.

Explanation:

  • Nitrogen is one among the four basic element of life which is a chemical element. The symbol of nitrogen is N with 7 as its atomic number. In 1772, it was isolated and discovered by Scottish physician named Daniel Rutherford.
  • As nitrogen is an inert gas, it can be used instead of air and also reduce oxidation of materials. It is also used in the manufacture of fertilizers, explosives etc.

does anyone have any ideas (easy) on cell simile projects. busy week but due tomorrow.HELP

Answers

A city, a factory. Just some ideas. If you're talking about the same project I did in Biology. 
you can make clay models in a box explaning different types of cells

What is the answer to provides the information for cell growth and function?

Answers

Once it has copied all its DNA, a cell normally divides into two new cells. This process is called mitosis. Each new cell gets a complete copy of all the DNA, bundled up as 46 chromosomes. Cells that are making egg or sperm cells must divide in a different way.

What happens to a population and to competition when there is a reduction of living space?

Answers

Answer:

Competition will increase among population due to reduction of living space.

Explanation:

Competition is the type of interaction between two organisms of same or different species in which both are harmed. So when the living space will reduce more individuals will forced to  live in small area fighting for same resources. In this way the competition will increase among them.

This competition can lead to the eradication of individuals which are less adaptable or mutation in their genes that allow them to flourish different niche for example Darwin's finches of Galapagos island.
if living space is reduced, then competition increases! if there's nowhere to go then there's going to be some pretty high tension!

Why are ​ORGANELLES separated by their own membranes?!!!!!1

Answers

Most are membrane-bound structures that are the sites of specific types of biochemical reactions. The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA.
I hope this helps! :)
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