Help what’s answer…………………………

Answer:

is there an option for AAG

Explanation:

which is silent mutation in this case

Who were the scientists that came up with the shape of DNA?
Watson and Crick
Crook and Brown
O Gregory and Mendel
7
O None of the above

all the cells in a multicellular organism are the same. True or False

You are an aquatic biologist studying a small lake. The stream that drains into this lake runs by croplands. You are detecting a pesticide called atrazine in the insects and worms that live in the lake. The predatory birds such as herons and egrets have very high concentrations of atrazine in their blood. The birds prey on the frogs and small fish. What condition best explains the high atrazine level in the birds?

An example of something that can be used to support the theory of evolution. Explain.

The table describes the properties of four compounds.



Which compounds are most likely ionic?

What is the difference between chromosomes
and chromatin?
A. the genetic information in it
B. the location in the cell
C. the structural form
D. the base pairs

Compare and contrast genetic engineering to the process of natural selection. Select all statements that
are true.
tinn aonetic engineer

Is an adaptation on one organism necessarily useful on another? Explain with examples.

Which of the following is a job for a landscape architect?

planning a municipal park

conserving land on traditional farms

operating machinery on crops

cutting down trees on private land

Which of the following would a prokaryote have?
A. Cytoplasm
B. Nucleus
C. Mitochondria
D. Golgi apparatus

what factor is often responsible for the other three


1 increase in levels of toxins in freshwater

2 increased poverty and malnutrition

3 increase in human population

4 increased depletion of finite resources

True/False: Mark the following statements as true (T) or false (F). If the statement is false, correct it to make it a true statement. _____ The periosteum contains osteoblasts and osteocytes. _____ Osteoclasts secrete bone matrix. _____ Compact bone is the hard, outer bone. _____ Compact bone is composed of spicules called trabeculae. _____ Spongy bone houses red and yellow bone marrow. _____ Circumferential lamellae are located between osteons.

Draw a Conclusion
Choose an answer.
Question: What types of
environmental changes does a
rabbit need to adjust to with the
change of the seasons every year?
Changes in temperature
Changes in food supply
Changes in habitat
All of the above

When does the separation of homologous chromosomes occur? A. Before Meiosis B. Meiosis 1 C. Meiosis 2 D. After Meiosis​

North Carolina has more wind off its shore than any other Atlantic Coast state. How could this resource be best utilized to reduce carbon emissions and provide cleaner energy for the state?​

David was sitting in his hotel room reading a book, when he heard a knock at the door, and the sound of someone trying the door handle. He opened the door,
where he saw a man whom he had never seen before. The man said, "I'm terribly sorry... I thought this was my room. Wrong floor, I guess. He then walked
off down the hall toward the elevator. David went back into his room, thought about what had just happened, and then phoned the front desk, suggesting they
call the police, since the man at the door had obviously been a thief.
Why was David so sure the man had been a thief?

Answer the following questions in your own words and in 3-5 complete sentences.

1. Where are the highest concentrations of the current population of Palmer amaranth?


2. Based on the climate model, how will the range change by 2050?


3. What do you think this change will mean for Palmer amaranth populations?

What are the three basic components of a nucleotide?
O Phosphate group, ribose and nitrogenous bases
O Adenine, thymine, and cytosine
O Oxygen, hydrogen and phosphate
O None of the above

Can someone help me with this, please?

What are the eight major mineral groups?

An mRNA sequence reads: GAA/GCU/AUA/CUA/UGU. What would the effect on the amino acid be if the second codon read GCA instead, and the third codon read AAU ?

A) Silent mutation on both, no changes whatsoever.
B) Silent mutation on second codon, third amino acid changed from PHE to STOP
C) Silent mutation on AAU only. Third amino acid is now HIS
D) Silent mutation on second codon, third amino acid changed from ILE to ASN.

3. In the mid 1970s, Sherwood Rowland and Mario Molina predicted a thinning of the stratospheric ozone layer over Antarctica. The thinning was confirmed in the late twentieth century and has continued into the twenty-first century. (a) Identify the class of chemical compounds that is primarily responsible for the thinning of the stratospheric ozone layer and describe TWO major uses for which these chemicals were manufactured. (b) Describe how the chemical compounds that you identified in part (a) destroy stratospheric ozone molecules. You may include chemical equations as part of your answer. (c) Identify the major environmental consequence of the depletion of stratospheric ozone and describe TWO effects on ecosystems and/or human health that can result. (d) Ozone formed at ground level is a harmful pollutant. Describe TWO effects that ground-level ozone can have on ecosystems and/or human health.

Question 16 of 36
Following a sports injury, while the team physician is testing the stability of the lower leg it
slides forward unnaturally. This injury can be explained by a tear to the
A. Medial collateral ligament
B. Posterior cruciate ligament
C. Anterior cruciate ligament
D. Medial meniscus
E. Lateral collateral ligament

A bucket of dirt! Dirt or soil is a mixture of many particles. Each kind of particle in a bucket of soil has unique properties. Here are
four particles that make up soil What property would you use to separate the four particles?
es )

Linda, a farmer, is cultivating corn and rice on her land. She also raises sheep and cows for their meat. Which type of farming Linda is practicing?
A.
mixed farming
B.
livestock ranching
C.
intensive subsistence farming
D.
nomadic herding

What is the monomer of DNA?
A. amino acid

B. monosaccharide

C. nucleotide

D. fatty acid

the four main types of macromolecules are organic. what does organic mean in this context.
A. it is made only of carbon
B. it is produced without the use of pesticides.
C. it is a very large molecule.
D. it is made from or produced by a living organism.

When an enzyme becomes denatured, what often happens to the rate of reaction?

A. Rate of reaction increases

B. Rate of reaction stays the same

C. Rate of reaction decreases

You place a cell in a solution that contains 12 more water molecules than the inside of the cell. How will you know when the cell reaches equilibrium?
A. when there are equal numbers of water molecules on both sides
B. when the water molecules stop moving across the cell membrane
C. both A and B
D. The cell will not reach equilibrium because water cannot pass through the cell membrane.

Answer the question

The diameter of a metaphase chromosome is about 1400 nm, whereas that of the DNA double helix is 2 nm. This means that DNA is coiled into a structure with a diameter 700 times larger than itself. The diameter of a human hair is about 80 micrometers (0.003 inch). Of a human hair were coiled into a structure with a diameter 700 times larger than itself, the diameter of the coiled human hair would approximate that of a: