Suppose you are on a class field trip to collect fossil shark teeth in the Sandy Beach. Which of the following tools would be best for your teacher to take long for you to use to collect the shark's teeth? Choose all that apply.
A. Mobile x-ray machine (uses x-rays to "see" inside things)
B. Hand trowel (a small shovel with a pointed tip)
C. Hand sieve (separates particles of different sizes)
D. Power drill (hand-held tool that drills holes in things)

Answers

Answer 1

Answer:

B

Explanation:


Related Questions

Which is not true in the following statements.
Binary fission is a form of asexual reproduction.
Budding is a form of reproduction.
Propagation is a form of asexual reproduction
Meiosis is a form of asexual reproduction.

Answers

Propagation is a form of asexual reproduction

What causes the stars to seem to disappear in the city skyline at night?
Оа
Small buildings
b
The sun
The moon
ос
Od
Light pollution

Answers

Stars seem to disappear from the city skyline at night due to light pollution caused by artificial lights.

What is light pollution?

It is the excessive or less use of artificial light that disrupts the natural patterns of wildlife, disrupts human sleep, and conceals the stars in the sky.

Why do stars disappear from the city skyline?

It is because in the city skyline there is excessive use of artificial lights and there is not a portion left which is not encroached by artificial lights.

Hence, option d) light pollution is the correct answer.

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PLEASE HELP!!!!! PLEASE HELP!!!

Answers

Answer:

its "A" water flowing over a tall cliff

Explanation:

the answer to the question is "A"

Please help, I’m confused and have little time!

1. How does your DNA differ from other peoples?how is it similar

2.How does your DNA differ from a strawberries DNA? How is it similar

Answers

Answer:

1.DNA is more than 99% similar between any two people. All the differences in how we look, feel, behave and the differences in our health are due to less than 1% difference

2.In humans each of these cells have 2 copies of the DNA, but in strawberries each of these have 8 copies of the DNA that means strawberries have 4 times as many copies of DNA as humans, making it 4 times easier to see.

Explanation:

Identify the letter of the choice that best completes the statement or answers the question. When determining the number of significant digits in a measurement,

Answers

Answer:

B

Explanation:

Identify the letter of the choice that best completes the statement or answers the question. When determining the number of significant digits in a measurement. When determining the number of significant digits in a measurement,

a. all zeros are significant.

b. all nonzero digits are significant.

c. all zeros between two nonzero digits are not significant.

d. all nonzero digits are not significant.

According to the rule of significant figures;

all nonzero digits in a number are significant. For example, 161.45 has 5 significant digits. all zeros after nonzero digits without decimal points are not significant. For example, 12300 has 3 significant digits.all zeros located between nonzero digits are significant. For example, 2002 has 4 significant digits.leading zeros in a digit are not significant. For example, 00123 and 0.0123 have 3 significant digits each.

Hence, the correct option is B.

Describe how an organism's genotypes codes for their phenotype. In your answer use the vocabulary terms: Phenotype, genotype, DNA, mRNA and protein. Please dont answer if you dont know it.

Answers

Answer:

The organism's genotype encodes their phenotype because the genotype corresponds to the characteristic that is determined by genes —formed by fragments of DNA— which are transcribed into mRNA to be translated into amino acid sequences in the synthesis of proteins, determining the morphological and functional characteristics of an organism, that is, its phenotype.

Explanation:

Genotype corresponds to the genetic information contained in the DNA, according to the sequence of nucleotides in its molecular structure. This genotype includes characteristics or polymorphisms that define the appearance and function of living beings.

Each DNA molecule constitutes a chromosome, formed by genes —DNA fragments— each of which determines specific characteristics.

When DNA is transcribed into mRNA, information is being sent that is necessary for the incorporation of amino acids into a protein that is being synthesized. The proteins, in turn, determine morphological and functional characteristics that constitute the phenotype of an individual.

Plz help me Plz

The letters X and Y represent missing events. Which option correctly replaces the letters X and Y?

in X, the homologous chromosomes separate, which increases genetic diversity because of Y.

OX: anaphase
Y: independent assortment

OX: anaphase 11
Y nondisjunction

Ox prophase 1
Y nondisjunction

OX: prophase 11
Y crossing over


Answers

Answer:

X: anaphase

Y: independent assortment

Explanation:

Homologous chromosomes seperate during meosis 1 while chromosomes seperate at meosis 2.  

Chromosomes are structures present in the nucleus of plant and animal cells. It transfers the genetic information from parent to offspring. Humans have 23 pairs of chromosomes. In which 22 pairs are autosomes while the 23rd pair is the sex chromosome.

The correct answer is:

Option A. OX: anaphase and Y: independent assortment

The explanation for this is:

In anaphase 1 of meiosis 1, the homologous chromosome separates.

In an independent assortment, the chromosomes move randomly towards the pole of the cells.

Independent assortment of the chromosomes raises the genetic diversity.

In meiosis, recombination happens due to which each gamete carries a unique set of DNA.

Therefore, in anaphase, the homologous chromosomes separate, which increases genetic diversity because of independent assortment.

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PLEASE HELP
Which process does this picture show?*

Transcription
Translation
Replication
Transformation

Answers

It would be replication, as you can see the DNA being “ripped” apart by helicase. You can also notice the complementary DNA strands being attached to the original strand.

How might an error during transcription affect the protein that is produced?

Answers

Answer:

the protein might be unable to function

How do you think the rock layers and fossils found in Red Rock Canyon can provide evidence for Earth's geologic history? What types of information can scientists learn from fossils?

Answers

Answer:

Fossils found in Canyon are crinoids, brachiopods, and sponges.

Explanation:

The rock layers and fossils found in Red Rock Canyon can provide evidence for Earth's geologic history because the canyon has marine fossils such as crinoids, brachiopods, and sponges and also contains terrestrial fossils such as impressions of leaf, dragonfly wing, scorpions, centipedes, and reptiles. So we can say that Red Rock Canyon provides a lot of evidences about geological history. The scientists learn a lot of information from fossils such determine the age of the rock, relation of different organisms with one another and ancient environments.

What is the difference between droplet and airborne spread of viruses like the measles?

Answers

Answer:

droplet consists of exposure to larger, smaller and particles when a person is close to a infected person. airborne consist of smaller droplets even for greater distance

Dr. Sanchez and her team have observed an unusual star in the Andromeda galaxy. Their data suggests that the star is being consumed by a nearby black hole. They write a scientific paper about their work and submit it to a scientific journal. Other scientists read their paper and look for the unusual star as well. The other scientists are participating in which activity?

Answers

Answer:

so the answer is peer review

Explanation:

Yes, other scientists are participating in this activity not in a direct way but in an indirect way. The scientists are participating in peer review.

What is galaxy?

The scientific paper was written by scientists which provide the data and conclusion of entire experiments. To write scientific experiments we need to collect data, frame hypotheses, research methodology, and find out the conclusion are some of the steps to writing a scientific paper.

Testing hypotheses often involves designing experiments. In the given experiment Dr. Sanchez found that star is consumed by a nearby blackhole. But other scientist found the unusual star as well.

This suggests that both scientist thought on different aspect. This suggest peer review.

Therefore, Yes, other scientists are participating in this activity not in a direct way but in an indirect way.

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what is an outcome of lack of oxygen?​

Answers

Answer:

Blood carries oxygen to the cells throughout your body to keep them healthy. Explanation:

Hypoxemia can cause mild problems such as headaches and shortness of breath. In severe cases, it can interfere with heart and brain function. Hypoxemia that causes low oxygen levels in your body's tissues is called hypoxia.

The outcome of lack of oxygen To maintain your body's cells healthy, blood provides oxygen to every cell.

What is cell ?

The smallest unit that can sustain life on its own and makes up all living things, including the body's tissues. The cell membrane, the nucleus, and the cytoplasm are the three primary components of a cell. The substances that enter and leave the cell are governed by the cell membrane, which encloses the cell.

There are two different types of cells: prokaryotic cells, which lack a nucleus but still have a nucleoid area, and eukaryotic cells, which have a nucleus. Eukaryotes can either be single-celled or multicellular, in contrast to prokaryotes, which are single-celled organisms.

From bacteria to humans, cells give all living things their structure and functionality. They are regarded as the tiniest form of life by scientists.

Thus,  To maintain your body's cells healthy, blood provides oxygen to every cell.

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Help As soon as possible !!!

Answers

answers= 1 and 4
adding more coils increases the strength between the poles

____ secrete enzymes which break down dead organic matter into smaller molecules that can be absorbed.
Answers:
Detritivore
Decomposer
Producer
Carnivore

Answers

dinosaurs divided by chickens = xy to the tenth power making that equal 4y * 7x -3
x= -1
don’t use this i’m just depressed

Dialectical behavior therapy (DBT) is used to treat all of the following EXCEPT
O schizophrenia
O borderline personality disorder
O drug addiction
O chronic suicidal behavior

Answers

Schizophrenia is not treated in DBT

Which of the following is the lysosome?

Answers

Answer:

D

Explanation:

Which of the following are true of enzymes?

Specific enzymes can only facilitate one or two reactions.


Enzymes are not changed by facilitating a reaction.


Enzymes lower the activation energy of a reaction.


Each specific enzyme can facilitate many different reactions.


Enzymes are specialized proteins.


Enzymes raise the activation energy of a reaction.

Answers

Answer:

Enzymes raise the activation energy of a reaction

Name the nitrogen bases that pair up to make the rungs of the DNA ladder.

Answers

Answer:

Two of the bases are purines- adenine and guanine. The pyrimidines are thymine and cytosine.

A half-life is the time required for one half of the atoms of a radioactive substance to decay. Do these special type of atoms continue to decay until they become stable atoms and they do not give off energy anymore?

Answers

Answer:

Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive

Explanation:

Match the word to the best sentence.anticodon, codon, complementary strand, DNA, DNA replication, mRNA, nucleotide, transcription, translation, tRNA
Group of answer choices
A three base pair sequence on mRNA that codes for the addition of a specific amino acid to build a protein.
This brings amino acids to the ribosome during translation to help make a polypeptide.
A three base pair sequence found on tRNA that will pair with the codon during protein synthesis.
The process that occurs during the S phase of the cell cycle and enables each cell produced during mitosis to have a complete set of genetic instructions.
This nucleic acid carries the instructions to make a protein from the nucleus to the cytoplasm.
One of the monomers of a nucleic acid, that is made of a sugar, a phosphate group and a nitrogen base.
Each half of the double helix that pairs together based on the base pairing rules.
The process of making a mRNA sequence by reading a gene on the DNA in the nucleus of a cell.
This polypeptide stores the genetic information in living organisms and is found in the nucleus of a eukaryotic cell.
After a mRNA strand attached to a ribosome, this process occurs and a protein is made.

Answers

Answer:

Is C

Explanation:

In translation, the cell uses the genetic information contained in mRNA to make the proteins that

carry out the cell’s work. The cell translates the code contained in the mRNA into a new

language, the language of proteins, based on amino acids. Other types of RNA, such as transfer

R

In this section, you will be introduced to the components involved in the process of protein

synthesis, called translation. This process requires a protein/RNA complex called the ribosome

3. Two parents bring their 4-year-old son, James, to the doctor because he is having
difficulty walking. He is diagnosed with a genetic disorder called Duchenne muscular
dystrophy, which affects males much more often than females. When genetic testing of
the family is done it is found that James' grandmother, mother, and one of his sisters are
all carriers for the disease. What is the most likely inheritance pattern for this disease?
i

Answers

Answer:

from his mother

Explanation:

because they have one copy of X chromosome from their mother and if X chromosome have DMD gene mutation so he will have DMD

can someone pleasee answer thiiisss pleasee

Answers

Answer:

Hi how are you doing today Jasmine

Where does carbon dioxide end up?

Answers

Answer:

Only about 50 percent of the CO2 from human emissions remains in the atmosphere. The remainder is approximately equally split between uptake into the land biosphere and into the ocean.

Explanation:

A towing company charges $40 to hook a car and $1.70 for each mile that is towed. Write an
equation that represents the total cost y for x miles towed. Find the y-intercept and interpret
its meaning in the context of the situation. ​

Answers

Given:

Fixed charges = $40

Variable charges = $1.70 for each mile.

To find:

The equation that represents the total cost y for x miles towed.

Find the y-intercept and interpret  its meaning in the context of the situation. ​

Solution:

Let y be the total cost for x miles.

Fixed charges = $40

Variable charges for 1 mile = $1.70

Variable charges for x mile = $1.70x

Now,

Total changes = Fixed charges + Variable changes

[tex]y=40+1.70x[/tex]

Therefore, the required equation is [tex]y=40+1.70x[/tex].

Putting x=0 in the above equation, we get

[tex]y=40+1.70(0)[/tex]

[tex]y=40+0[/tex]

[tex]y=40[/tex]

Therefore, the y-intercept is 40. It means the charges to hook a car is $40 if it is towed 0 miles.

what is the effect of glucagon?​

Answers

The effect of glucagon can get you nausea, vomiting, headaces, rhinorrhea and nasal pain.

Explain an example why selective breeding is an example of biotechnology

Answers

Example of selective breeding: Cows that produce lots of milk. Selective breeding to create more useful varieties of animals and plants is a form of biotechnology that human beings have used for thousands of years. Biotechnology includes any use of science or technology to alter the characteristics of a particular breed or animal.

What is the significance of the sequence of nitrogen bases in a DNA molecule?

Answers

Answer:

The sequence of the nitrogen bases detremine the order of amino acids in the proteins synthesized.  AKA determine the amino acids in the protein

Explanation:

A DNA is used as a template to create mRNA in a process known as transcription. Transcription occurs in the nucleus and it is catalyzed by an enzyme RNA polymerase.

mRNA moves to the ribosome, and is translated.The nucleotide sequence on the mRNA are arranged in triplets known as codons. The codons on the mRNA are read by the ribosome and used to make a protein.

Thus, the order of nitrogenous bases determines the order of amino acid sequence of the protein synthesized.

The order in which amino acids are added to newly synthesized proteins is determined by the sequence in which nitrogen bases are added.

What are nitrogenous bases?

In the process known as transcription, a DNA molecule serves as a template for the production of mRNA. The nucleus is the location where transcription takes place, and the RNA polymerase enzyme is the catalyst for this process.

The translation process begins when mRNA travels to the ribosome. The nucleotide sequence on the messenger RNA is organized into triplets that are referred to as codons. The ribosome reads the codons that are written on the mRNA and uses that information to make a protein.

Therefore, the sequence of amino acids in the newly synthesized protein is determined by the order in which nitrogenous bases are added.

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Help plzzzzzzzzzzzzzzzzz

Answers

Answer:

A) It helps to separate the chromosomes

Explanation:

1. Show the possible outcomes if a women who is a carrier for baldness has children with a normal man.
Can they have a son with baldness?

Answers

Answer:

Yes they can.

Explanation:

I defined the genotypes and possible outcomes in the image attached

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