Nickel and lead float to the surface. true or false

Answers

Answer 1

Answer:

False

Explanation:


Related Questions

Which of the following is a circumstance under which asexual reproduction is beneficial? A. When a lot of genetic diversity would give an advantage B. When the environment is stable C. When the environment is frequently changing D. When there are lots of mates, making finding a mate easy​

Answers

The answer would be C because with the environment frequently changing it would exponentially harder to find a mate.

What happens when two plates interact?

Answers

Answer:

When two plates come together, it is known as a convergent boundary. The impact of the colliding plates can cause the edges of one or both plates to buckle up into a mountain ranges or one of the plates may bend down into a deep seafloor trench. ... Two plates sliding past each other forms a transform plate boundary.

The middle layer contains smooth muscle tissue, which contracts and relaxes to push blood. It also contains elastic connective tissue, which helps to regulate blood pressure. How do the two tissues in the middle layer relate to the artery's function?

Answers

Answer and explanation:

Arteries are the blood vessels that take blood from the heart to the tissues where it's needed. For this task to be achieved, arteries have different structures and properties in each of their layers.

Arteries have 3 layers, also called tunicas: the intima (in contact with the blood), the media, and the adventitia (the most external layer).

The media -or middle layer- is composed of smooth muscle tissue and elastic connective tissue. This tunica is usually the thickest of the three and has a hugely important role in blood flow and blood pressure regulation.

Blood pressure (BP) is a variable that the body needs to maintain in a range for everything to work effectively. When blood pressure falls, the middle layer of the artery contracts (both in response to the change in blood flow and thanks to the action of specific hormones) so blood can flow somewhat faster and compensate for the disturbance in BP. On the other hand, when blood pressure rises, the middle layer of the artery dilates, to make the blood flow slower.

Smooth muscle tissue is fundamental for contraction, while elastic connective tissue is needed for dilatation.

Answer:

D. The two tissues contain different types of cells, and each type performs different functions.

Species that require pristine conditions for survival and reproduction are useful as a(n)

exotic species

warning system

resource

parasite

image to capture the hearts and pocketbooks of today's youth.

Answers

Answer:

The correct answer is - warning system.

Explanation:

Warning systems are a type of system that could be technical or biological in nature that can help in assessing or inform about the possible danger or change in a particular setting such as ecosystem, weather, water quality, and many others. It helps in avoiding such threats before occurring or become serious threats.

Certain biological species that live or require a particular set of conditions for their survival and reproduction can act as a biological warning system for water pollution, air pollution.

Complete the sentences.

Answers

I hate IREADY but 2 pounds cost 15

Answer:

means that 15 pounds of beans cost $12

Explanation:

the ordered pair shows you this info bc pounds is the x value 15 and the cost is the y value 12

hope this helps <3

Why were bacteria given their own Kingdom?

Answers

1 Answer. Mandira P. With the discovery of electron microscope, biologists realised that it did not make any sense to include prokaryotic world of bacteria in kingdom protista with single celled eukaryotic organisms. Hence a separate kingdom, Monera, was created.

ANSWER QUICKLY PLEASE!!Provide the complmentary DNA sequence, mRNA sequence, and amino acid sequence for the following DNA segment. TGTTCTGCCATGACT

Answers

Answer:

mRNA complementary:

ACCAAGACGGUACUGA

A=U  C=G  G=C  T=A

DNA complementary:

ACAAGACGGTACTGA

A=T  C=G  G=C  T=A

Explanation:

Hope this helps! :)

And just to clarify, with mRNA the only thing that changed is the A=U.


Which could be a product of biotechnology?
A. a potato that resists frost
B. a chicken coop
C. a microscope
D. a laboratory

Answers

Answer:

B. A Chicken Coop

Explanation:

Specifically, industrial biotechnology uses enzymes and micro-organisms to make bio-based products in sectors such as chemicals, food ingredients, detergents, paper, textiles and biofuels.

The table shows the crossing-over frequencies for three genes in the fruit fly Drosophila. The greater the frequency, the more likely that crossing over separates the genes. The gene for eye color (A), wing shape (B), and body color (C) are found on the same chromosome.

Genes | Crossing over frequency
A and B | 12.5%
A and C | 6%
B and C | 18.5%


What are the two most likely sequences of these genes on a gene map for this chromosome? Select two options

a. B,A,C

b. A,B,C

c. C,B,A

d. C,A,B

Answers

Answer:

B, A, C, and C, A, B (another way to say it would be letters a and d).

Explanation:

I took the quiz and got it right.

The two most likely sequences of these genes on a gene map for this chromosome is :

A) B,A,C

D) C,A,B

The two most likely sequences of these genes on a gene map for this chromosome is B,A,C and  C,A,B.A gene is the basic physical and functional unit of heredity. The genetic map is a type of chromosomal map that shows the relative location of genes and other important characteristics.

Thus, the correct answer is A and D.

Learn more :

https://brainly.com/question/12047537?referrer=searchResults

Insects have three pairs of legs or are ________ arthropods

Answers

Answer is thorax...

Hope it helps you...

Which of the following would decrease the rate of photosynthesis?
6C02 + 6H2O +(sunlight) - 602 +CsHi20

Answers

Answer:

C

Explanation:

took the quiz

How are Saturn and Jupiter alike?
They both have rock surfaces.
They both rotate very slowly.
They both have rings.
They both have very low densities.

Answers

Answer:

Jupiter and Saturn are alike in six different ways. They both are huge and they both have a lot of moons. They both have rings and they are in our Solar System. Plus they are both gas planets, and they and they don't have any solid ground.

Explanation:

c they both have rings

If an environment experiences change, which BEST predicts the population that is MOST LIKELY to survive?

Answers

Answer:

the population that reproduces sexually and undergoes meiosis

Explanation:

the population that reproduces asexually and undergoes mitosis

the population that reproduces sexually and undergoes mitosis

the population that reproduces asexually and undergoes meiosis

the population that reproduces sexually and undergoes meiosis

The correct answer would be the population that reproduces sexually and undergoes meiosis.

Meiosis is always related to sexual reproduction. It leads to the production of sex gametes that participate in fertilization. During meiosis, genes are recombined and the gametes genetically variable from their parents. The genetic variation ensures that sexually produced organisms have the inherent ability to adapt to changes in their environment.

This is unlike asexually produced organisms. They are produced by mitosis and no form of gene recombination occurs. Hence, they are genetically identical to their parents. This means that a single change to the environment can wipe out both the parents and their offspring.

Therefore, the only population that can survive adverse changes to the environment is the population that reproduces sexually and undergoes meiosis.

Please help me

Which type of rock is deformed?

A) Metamorphic

B) sedimentary

C) Igneous

Answers

Answer:

A) metamorphic

Explanation:

I think this is right

metamorphic rocks are formed from other rocks that are changed by heat and pressure underground.

Which adaptation would be most helpful to animals in a desert? A. Ability to breathe at high altitudes. B. Thick fur coat C. Brightly colored skin D. Ability to live with little water​

Answers

Answer:

D. D. Ability to live with little water

Explanation:

The question asks which adaption would be most helpful to animals in a desert. In the desert, there is less water as it is so hot, so the ability to live with little water would be the best choice!

What part of the oxygen cycle system flow is being illustrated below:

Photosynthesis is releasing oxygen from the lithosphere to the atmosphere

Respiration is releasing oxygen from the lithosphere to the atmosphere

Weathering is releasing oxygen from the lithosphere to the atmosphere

Sedimentation is releasing oxygen from the lithosphere to the atmosphere

Answers

Answer:

C. Weathering is releasing oxygen from the lithosphere to the atmosphere

Explanation:

i got it right on the quiz

Answer:

Weathering is releasing oxygen from the lithosphere to the atmosphere

Explanation:

just took test

What factors limit the size of a cell?

Answers

Answer:

The factors limiting the size of cells include: Surface area to volume ratio (surface area / volume) Nucleo-cytoplasmic ratio. Fragility of cell membrane.

answer: The factors limiting the size of cells include: Surface area to volume ratio (surface area / volume) Nucleo-cytoplasmic ratio. Fragility of cell membrane.

Explanation:

2. Jamie inherited his height from his parents. What determines the inheritance of Jamie's height?​

Answers

Answer:

Genes

Explanation:

I pretty sure its genes or genetics because thats how you look like them and thats how certain features of a family pass down to the next generation

*PLEASE ANSWER ASAP PLEASE!!!*
Which species rests on the tips of its two pelvic fins and elaborate tail fin as it sets on the seafloor?

a.) tripod fish

b.) anglerfish

c.) swordfish

Answers

Anglerfish, like this species of the genus Chaunax, have modified pelvic fins that allow them to “walk” on the rocky seafloor, and even leap into the water column and land softly.

Anglerfish is the species which rests on the tips of its two pelvic fins and elaborate the tail fins as it sets on the seafloor. Thus, the correct option is B.

What is Anglerfish?

The anglerfish are fishes of the teleost order Lophiiformes. They are the bony fishes which are named for their characteristic mode of predation, in which a modified luminescent fin ray acts as a lure for the other fishes.

The most distinctive feature of anglerfishes are that they worn only by females, which is a piece of dorsal spine that protrudes above the mouth like a fishing pole, hence their name anglerfish. They are tipped with a lure of luminous flesh this built-in rod baits prey close enough to be snatched in the sea.

Therefore, the correct option is B.

Learn more about Anglerfish here:

https://brainly.com/question/6245828

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What was the purpose of the Kinetic energy lab, the importance of the topic, and the question you are trying to answer? Ed genuity

Answers

Answer:

It is important to learn about, and very interesting. I would still like to learn more about it!

Explanation:

IF I CAN HAVE AN ANSWER BY THE END OF THE DAY THAT WOULD HELP! I have to get this in by tomorrow morning at 8:30am. April 1 2021 :)
÷
One day, at a certain time, a student measured the shadow of a fence and found that it was 2 m long. The next day, she measured the shadow of the same fence at a different time and found that it was 3 m. long. What can you infer about the time of day at which the student measured the shadows? Explain.​

Answers

Answer:

The time of day the second time the student measured the length of the fence shadow was either earlier or later than the first time she measured the shadow.

Explanation:

As the first time the student measured the shadow of the fence gave an answer of 2 meters, the second time gave an answer of 3 meters. For this reason, the shadow is longer in length. This means that the sun is closer to the horizon, yielding a light beam that is closer to the ground.

Moreover, if the sun was directly above the fence post, there would be no shadow. However, because the sun is closer to the horizon, showing that it is earlier or later then the first measurement, the second measurement has a longer shadow.

What he/she said up above

Can someone help me I’m confused

Answers

Answer:

answer

Explanation:

Hyposecretion of insulin is the production when number of hormone or too little of a hormone. It can be caused by the destruction of hormone-secreting cells, such as in Type 1 diabetes, or by a deficiency in a nutrient that is important for hormone synthesis. Hyposecretion can be treated with hormone-replaceme

response of a plant to a stimulus​

Answers

Answer: it can be in many forms for the movement of flower of sunflower is due to the stimulus light..

Explanation:

it's called plant tropisms

Plants respond to changes in the environment by growing their stems, roots, or leaves toward or away from the stimulus.

A forest fire in California destroys almost fifty acres of Forest. For scientists working
in the forest in the years after the fire, which will they be observing?
A. disturbance succession

B. post succession

C. secondary succession

D. primary succession

Answers

The answer is C secondary succession

What is the difference between mechanical and chemical weathering?

Answers

Answer: Mechanical weathering breaks rocks into smaller pieces without changing their composition and chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface.

Explain the difference between strict and loose construction of the Constitution.

Answers

I think it's helpful for you.

Pls mark it as brainlist. Please

Answer: Loose construction means that the federal government can take reasonable actions that the Constitution does not specifically forbid.

Strict construction, people should follow exactly what the Constitution says to do.

Explanation: Hope this helps :)

1. Eight components present in nucleic acids are listed in the box.
Components of Nucleic Acids
1. Phosphate
2. Ribose sugar
3. Deoxyribose sugar
4. Uracil
5. Thymine
6. Adenine
7. Guanine
8. Cytosine
Which components bond with adenine in a section of double-stranded DNA?

Answers

The answer is Thymine.

—Evidence—
Within the DNA molecule, adenine bases located on one strand form chemical bonds with thymine bases on the opposite strand.

By means of hydrogen bonds, the nucleic acid thymine bonds with adenine in a section of double-stranded DNA.

What are nucleic acids?

Nucleic acids are the monomer units of DNA which is composed of long chains of nucleic acids linked together by phosphodiester bonds as well as by hydrogen binds between two DNA strands.

In double-stranded DNA molecule, the nucleic acid adenine bonds with thymine, while guanine bonds to cytosine through hydrogen bonds.

Therefore, thymine bonds with adenine in a section of double-stranded DNA.

Learn more about nucleic acids at: https://brainly.com/question/1893853

Vhich is the MOST cooperative relationship between species?

Answers

Answer:

Mutualism

Explanation:

Which is an example of an adaptation? 1. The better nutrition of a human helps her grow taller. 2. The webbed feet of a duck help it swim. 3. The urban location of a raccoon helps it find food. 4. The large leaves of a desert plant require more water.

Answers

B. The webbed feet of a duck helps it swim.

What is the most common cause of mutations in DNA of cells?

Answers

Answer: When DNA is being copied for the Daughter cells

Explanation: There is a mistake when the DNA is being copied for the new daughter cells. When a cell divides, it must divide its DNA into 2 exact copies of the orginal DNA for the 2 new daughter cells. Sometimes the copy isn't correct and the cells mutates.

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Start, green, green, star, quesiton mark, question mark, star, question mark, green, cat town, green, green, star, question mark, green, green, star, green, end.Which theoretical probabilities are equal to 1/3? Check all that apply.rolling an even number on the first rolllanding on a star space on the first rolllanding at Cat Town on the first rollnot landing on a question mark or star on the first rollrolling a number greater than 4 on the first roll Find the additive inverse of 4x8 .