BIOLOGY HIGH SCHOOL

Missense, nonsense, and silent mutations are examples of which type of mutation?A) substitution
B) insertion
C) deletion
D) replication

Answers

Answer 1
Answer: I believe the correct answer is either A or B.
Answer 2
Answer: I think it would be D

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If an individual's gametes are exposed to x-rays before being passed to offspring what will most likely happen?
In exocytosis,the membrane package fuses with___?

What is a vacuole?? and what does it do??

Answers

The vacuole is a "container" in the cytoplasm in a cell that stores water, food, and waste.
 Vacuoles are storage bubbles that might store food or nutrients that a cell would need to survive.

Biology is the study of the atmosphere.
a. True
b. False

Answers

biology is the study of the earth therefore it is false

A researcher is studying the impact of different community activities on natural resources. Which activity is correctly paired with the level of impact it has on natural resources?

A.little impact when humans exclusively use fossil fuels for power needs
B.great impact when humans use alternative water sources for nondrinking functions
C.little impact when humans plant different types of trees for different uses
D.great impact when humans maintain a diverse diet that includes various protein sources

Answers

Answer: B. great impact when humans use alternative water sources for non drinking functions.

Great impact when humans use alternative water sources for non drinking functions is the correct option because use of alternative water sources can deplete the overall available water for the present as well as for the future generation of the human population. This is against the concept of sustainable development which suggests that natural resources should be used in such a way so that these can meet the needs of the present population as well as that of future generation.

B) Great impact when humans use alternative water sources for nondrinking functions

Which of the following can be produced by splitting U-235 Xenon

Barium

Krypton

Strontium

All of the above

Answers

The answer would be all of the above. Apparently this a popular question because just answered yesterday for someone else.

What is the density of the marble? A. 0.10 g/mL B. 240 g/mL C. 40 g/mL D. 1.875 g/mL

Answers

40 g/mL IS THE ANSWER

Charles Darwin was credited for writing the biological theory of __________________. The organisms that were used for the basis of his studies were ___________________.these are the answer choices
A) evolution by natural selection, sweet peas
B) inheritance by independent assortment, sweet peas
C) evolution by natural selection, Galapagos finches
D) inheritance by independent assortment, Galapagos finches

Answers

Correct answer: C). Evolution by natural selection, Galapagos finches  

Charles Darwin gave the theory of natural selection in the year 1835 when he visits Galapagos Islands.

There he found several species of finches are adapted to different environmental niches. They have a different shape of the beak, food source they eat and the way they captured the food.

He observes that species vary from island to island, and based on these observations he gave the theory of natural selection.
The answer is C. He observed how the birds' beak sizes affected their ability to compete for food. 
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Which of the following happens first?A)Introns are edited out of the premature DNA. B)RNA ploymerase reaches a terminator region. C)Nucleotides are covalently linked together. D) RNA polymerase binds to a promoter region of DNA.
During the process of photosynthesis, energy from the sun is converted into?
describe the results if you do an experiment to determine the physical properties of tyrosinase. if you run gel filtration and SDS-PAGE, what results do you see