BIOLOGY HIGH SCHOOL

How are DNA and chromosomes related to each other

Answers

Answer 1
Answer: DNA contains the instructions, genes, to make proteins that tell what genetic traits the person will have. The DNA along with the proteins make up the chromosomes. The chromosomes are then passed on to the offspring, and with the DNA inside the chromosomes and translation of the genes, its traits are decided.

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PLZ HELP! 20 POINTS! WILL GIVE BRAINLIEST!1. In the fast change, how are other parts of the ecosystem affected?





2. In decomposition, how are other parts of the ecosystem affected?





3. Under which type of change would more organisms be able to survive? Why?





4. What are some positive effects of a rapid change to an ecosystem?





5. What are some positive effects of a slow change to an ecosystem?

Answers

A change in an ecosystem necessarily affects the species which are part of it, and changes in species in turn affect ecosystem processes. ... This is caused by the extinction of species or loss of populations that had been unique to particular regions and by the invasion or introduction of species into new areas.

Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. Decomposers are very important for any ecosystem. If they weren't in the ecosystem, the plants would not get essential nutrients, and dead matter and waste would pile up.

Which elements are found in high proportion in earth's crust?

Answers

here's a few: magnesium, oxygen, silicon, phosphate, and aluminum are all found in earth's crust in high proportion. oxygen being the highest proportion of any other element.
 

Unlike amphibians, reptiles A. have lungs to oxygenate blood.
B. use single-loop circulatory system.
C. have a closed circulation system in which blood circulates entirely within blood vessels.
D. have ventricles that are further divided to lessen mixing of oxygen-rich and oxygen-poor blood.

Answers

D. have ventricles that are further divided to lessen mixing of oxygen-rich and oxygen-poor blood.

Amphibians:
A. have lungs to oxygenate blood. 
B. use single-loop circulatory system. 
C. have a closed circulation system in which blood circulates entirely within blood vessels. 

What is the non-example of prokaryote

Answers

Animals and plants are examples of eukaryotes.

Name the component of food whose digestion produce nitrogenous waste.

Answers

It is proteins,,,
Amino acids from proteins produce ammonia, which with the help of liver enzymes convert into urea.....

f the water concentration inside a cell is higher than the water concentration outside the cell, water flows out of the cell. This method of molecular transport is called A. exocytosis. B. osmosis. C. a sodium pump. D. endocytosis.

Answers

B. osmosis..
is water movement through semipermeable membran bcz different concentration of substances
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In a cross between Rr and Rr what's is the probability of the offspring showing a recessive trait?