Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?

Answers

Answer 1

Answer:

answer:

a balance and a graduated cylinder

Explanation

Density is mass per unit and it is property characteristic of a substance. The arrangement of the mass of atoms and their size is what determines the the density of a substance.

For a student to measure the density of seawater he/she is required to use a balance and a graduated cylinder where a balance will be used to measure the mass of the mineral sample and then a graduated cylinder to determine the volume.

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Which of the following best describes the effect of cancer-causing mutations on the cell cycle? The mutations increase the speed of the cycle. The mutations cause the cell to bypass checkpoints in the cycle The mutations eliminate one or more stages of the cycle. The mutations interfere with S stage of the cycle. None of these.
Is it more efficient from an energy standpoint to be a vegetarian vs. an omnivore?

Multiple ChoiceWhich of the following sets of terms could be used in a description of the peripheral nervous system?
O
A. Motor neurons and sensory neurons
B. Brain and spinal cord
O C. Motor neurons and brain
O D. Sensory neurons and spinal cord

Answers

Answer:

B. Brain and spinal cord

Explanation:

because we need both in order to survive and work properly.

At time 0s, a population has 2 members. At time 2s, there are 4 members. At time 6s, there are 16 members. What type of growth is being experienced by this population?

Answers

Exponential growth is seen

Given that initial population, at time 0 members =2

i.e. P0 =2

P(2) = 4

In 2 minutes it became 4 times

And in 6 minutes it became 16 members

P(0) =2

P(2) =4

P(6) =16

i.e. every 2 minutes the population doubles

Hence exponential growth of population doubling in 2 minutes

P(t) = $2^{\frac{t}2}$

will be the function representing the population at time t.

Exponential Growth....members are increasing to its double value within every 2s.

Rosiglitazone is an antidiabetic drug meant to target adipose cells, enhancing insulin effects. The drug mimics the fatty acid metabolites that bind to a nuclear receptor found mostly in fat, liver, and a few other tissues. Cortisone is a type of glucocorticoid mimic that binds to a nuclear receptor, activating the receptor's transcriptional regulatory function. The ligand-activated receptor binds coregulatory proteins, and the protein complex targets gene transcription involved with inflammation. Which of the following statements about these two drugs best describe their mechanism of action? Choose one or more: A. Rosiglitazone will bind to its receptor (peroxisome proliferator-activated receptor), and the receptor- B. Zinc fingers bind at the top of rosiglitazone receptor dimers as a stabilizer, allowing the alpha helical C. Receptor dimers with bound cortisone bind to the DNA target using a zinc finger to bind to an inverted D. Cortisone and rosiglitazone form heterodimers with the receptor in a head-to-tail fashion to regulate ligand complex can bind to the RXR receptor in a head-to-tail fashion. recognition strand to bind into the minor groove of the target DNA. repeat that must be at least partially palindromic to be recognized. gene activity.

Answers

Answer:

i dont know

Explanation:

What is the effect of an enzyme on the energy of a chemical reaction

Answers

Answer:

it increases speed of chemical reaction

Final answer:

Enzymes are proteins that speed up chemical reactions by lowering the activation energy, or the energy required for a reaction to take place. This makes reactions happen more efficiently and quickly.

Explanation:

An enzyme is a type of protein that accelerates, or catalyzes, chemical reactions. In relation to their effect on the energy of a chemical reaction, enzymes lower the activation energy. The activation energy is the energy threshold that must be met in order for a chemical reaction to occur. By decreasing this energy barrier, enzymes facilitate the process and make it proceed faster than it would without the enzyme.

For example, let's take the digestion of food in your body. The enzymes present in your digestive system speed up the chemical reactions that break down large food molecules into smaller units. This is because these enzymes reduce the activation energy required for these reactions, enabling the reactions to happen more efficiently and quickly.

Learn more about Enzymes and Energy here:

brainly.com/question/32445410

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What is the meaning of life. And what does death look like.

Answers

Life is a match. Where we are born in the world to be good and righteous. If death is when our lives are powerless. After life we all must die and after death there is Eternal Life, which is the hereafter. If our deeds are right, we will definitely go to heaven. If our actions are evil, it will be hell.

#Learn withKezia^^

#Ihopethishelps

If you don't understand, please ask.

Thankyou

Use the template of a replication fork to draw arrows that represent both continuous and discontinuous DNA synthesis. Draw one long arrow to show continuous DNA synthesis and three arrows to show discontinuous DNA synthesis. The arrows should point in the direction of nucleotide addition, and the three arrows showing discontinuous synthesis should be numbered 1, 2, and 3, in the order of fragment synthesis.

Answers

Answer: seen below

Explanation:

Deoxyribonucleic acid (DNA) synthesis is the biological process by which DNA molecule is created. In the cell, each of the two strands of the DNA molecule acts as a template for the synthesis of a complementary strand. This strands are separated during replication (DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule). DNA polymerase synthesizes the new strands by adding nucleotides that complement each (template) strand.

Deoxyribonucleic acid (DNA) synthesis is continuous because extension of a single ribonucleic acid (RNA) primer occurs without interruption into the replication fork as it continues to open to the right as seen on the diagram below. On the upper lagging strand which is the discontinuous synthesis, here synthesis is discontinuous, since new RNA primers must be added as opening of the replication fork continues to expose new template.

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