1. A rock has a mass of 15 grams and a volume of 5 cm? What is the density of the rock
D=
M=
V=

Answers

Answer 1

Answer:

D= 3

M= 15

V=5

Explanation:

D=m/v

D= 15/5

D=3


Related Questions

15. Why is an enzyme's shape important for the process of a chemical reaction:

Answers

Answer:

Why is shape important? The shape of an enzyme is very important because it has a direct effect on how it catalyzes a reaction. An enzyme's shape is determined by the sequence of amino acids in its structure, and the bonds which form between the atoms of those molecules.

Discribe the structure of paramecium​

Answers

Answer:

they are single celled protist, most commonly found in aquatic habitats.Certain paramecia are also easily cultured in labs and serve as useful model organisms.they are usually oblong or round.

Explanation:

the answer above gives a great explanation and is correct.

How to treat Zygomycota desease?

Answers

Answer:

Zygomycota. It's a fungus and a disease that can be treated, usually, with azoles and echinocandins. You might also need medical debridement. It's part of the infected tissues while being guided by amphotericin B administration.

After the administration, doctors found that Novel azole antifungal could help this disease. Later, it was Isavuconazole. This medicine happened to be recommended for treatment as well.

In non-trauma situations, it usually begins in the nose. It is one of the most rapidly dispersing fungal infections in humans. To treat it, you need a concentrated antifungal drug remedy.

Covalent bonding can take place between atoms of the same element.​

Answers

Answer:      true

Explanation:

A covalent bond is the force of attraction that holds together two atoms that share a pair of valence electrons. Covalent bonds form only between atoms of nonmetals. The two atoms that are held together in a covalent bond may be atoms of the same element or different elements.

This question is incomplete because the options are missing. Here are the options:

A. True.

B. False.

A covalent bond occurs in two atoms when they join, to reach the "stable octet", and share electrons in the last orbit, forming a molecular orbital.

Covalent bonds are characterized by occurring

Between atoms of the same nonmetal element for example two or more atoms of carbon, nitrogen or argon bondedBetween different nonmetals, for example one atom of hydrogen bonded to one of carbon Between a nonmetal and hydrogen, for example one atom of hydrogen linked to one of nitrogen

Therefore, the statement that a covalent bond can be formed between two equal elements is true.

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Heat from deep in the Earth's interior is transferred to its crust by which of the following?
O Conduction in the ocean.
O Convection in the mantle.
O Radiation from the solid core.
O Evaporation at mid-ocean ridges.

Answers

Answer:

convection in the mantle

Explanation:

Answer: B.

Explanation:

Hope this helps!! :)

Cells have genes that affect cell division. These genes may be damaged by
environmental factors such as radiation, smoking, and viral infections. Oncogenes
stimulate rapid cell division and are normally turned off in adult organisms. Tumor
suppressor genes prevent continuous cell division and are normally turned on in
adult organisms. One of these tumor suppressor genes, called p53, can be turned off
by the effects of smoking tobacco. Based on the above information, what is the most likely result of turning off p53?
A Lungs become black from smoking

B Cells undergo uncontrolled division

C White blood cells are unable to stop infections

D. DNA chains are broken and form more chromosomes

Answers

Answer:

B.

Explanation:

A tumor is essentially when damaged cells continue multiplying. So by smoking your risking both damaging your cells and turning of the p53 gene.

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The most likely result of turning off p53 is cells undergo uncontrolled division. Hence option B is correct.

What are genes?

Genes are defined as the fundamental genetic component transferred from parent to child. Genes are composed of DNA sequences and are organized sequentially at specified sites on chromosomes in the cell nucleus. The foundation of the body is made up of cells. Your body is made up of billions of interconnected cells in every part. Chromosomes are the units on which genes are organized.

Diseases like cancer can result from an alteration in the cell cycle's regular regulation. When the cell cycle is out of balance, cells have the potential to randomly divide and accumulate genetic errors that can cause a malignant tumor.

Thus, the most likely result of turning off p53 is cells undergo uncontrolled division. Hence option B is correct.

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What do plant cells have that animal cells
do NOT?

Answers

Answer:

cell wall and plastids

what would happen if a cell were unable to make mRNA what is the importance of DNA replication occurring without any mistakes

Answers

Answer:

It would just be transmitted to DNA

Explanation:

Ability to burn What is the property

Answers

Answer:  Flammability

Explanation: Vote me brainliest ;D

Flammability is the ability of matter to burn. When matter burns, it combines with oxygen and changes to different substance.

Shahzadi is looking at a cell with an electron microscope. She estimates that the cell is 2 x 10-5 metres long. What is this number fully written
out?​

Answers

The length of the cell when the number is fully written is twenty millionth meters long.

Given that the length of the cell is 2 x 10⁻⁵ meters long.

1 millionth = 0.000001 = 10⁻⁶

The length of the cell = 2 x 10⁻⁵ meters = 20 * 10⁻⁶ meters

Therefore the length of the cell when the number is fully written is twenty millionth meters long.

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How many total atoms are in this
compound: H2C304N5?
A. 5
B. 19
C. 15
D. 14

Answers

D, just add all the numbers!

Which is an example of hybridization that would increase hybrid vigor? producing a litter of puppies by mating two dogs of different breeds using genetic engineering to insert a gene for vitamin A in carrot plants pollinating the flowers on a tomato plant with pollen from a plant of the same variety choosing a mate for a purebred cat from another litter of offspring from the same mother and father

Answers

Answer:

The correct answer is A.

Explanation:

Correct on edge :)

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Producing a litter of puppies by mating two dogs of different breeds using genetic engineering is an example of hybridization. Thus, the correct option is A.

What is hybridization?

Hybridization is the process in which two complementary single-stranded DNA molecules or RNA molecules bond together with each other to form a double-stranded molecule of genetic material. The bonding is dependent on the appropriate base-pairing across the two single-stranded molecules of genetic material.

Interbreeding between individuals of different species within the same genus with favorable characteristics is called interspecific hybridization. For example, mule is produced from the cross between male donkey and female horse.

Therefore, the correct option is A.

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By inserting the genes of a plant that produces an enzyme or other protein that can be used as medicine into a
bacteria cell's DNA, scientists can produce genetically engineered bacteria that act as factories to produce that
enzyme or protein in greater amounts.

Answers

Answer:

Explanation:

In a typical cloning experiment, a target gene is inserted into a circular piece of DNA called a plasmid. The plasmid is introduced into bacteria via a process called transformation, and bacteria carrying the plasmid are selected using antibiotics.

2. The phosphorus cycle is not
O atmospheric
O slow
O necessary

Answers

The answer is atmospheric


Which position has the longest amount of daylight in the southern hemisphere?

Answers

Answer:

I dont know I think d or b

dont take this answer seriously

6. Why is water useful to cells?​

Answers

Your body uses water in all its cells, organs, and tissues to help regulate temperature and maintain other bodily functions. Because your body loses water through breathing, sweating, and digestion, it's important to rehydrate by drinking fluids and eating foods that contain water.

Dead zones are low-oxygen areas that develop on the seafloor. Scientists hypothesize that phytoplankton blooms cause these dead zones. Phytoplankton blooms occur when excess nutrients are introduced by pollution from fertilizers, sewage plants, and the burning of fossil fuels. Which of the following would most likely cause an increase in these contributors to dead zones?

Answers

Answer:

Rainfall patterns that increase freshwater runoff from terrestrial ecosystems.

What is the function of the organelle labeled number 9 in the image above?
store genetic information
digest waste
produce energy
package and transport

Answers

Answer:

produce energy

Explanation:

The cell organelle labelled 9 can be identified as mitochondrion.

This mitochondrion, which is bounded by a double-membrane is popularly referred to as the "power house of the cell". It is usually found in most eukaryotic cells.

It is called "the power house" simply because it serves as the major site of the cell where energy in form of ATP is produced for the proper function of the cell. It is where most of the chemical energy supplies of the cell comes from.

Particles made up of proteins, nucleic acids, and sometimes lipids that can reproduce onlyby infecting living cells are called what

Answers

They are called viruses

Pests that do not die as a result of chemical pesticide treatment will develop a resistance to the pesticide.

False
True

Answers

Answer:True

Explanation:

I had the same question

Answer:  The correct answer is True

Explanation:  This statement has been confirmed as correct.

Use the drop-down menus to determine where these organelles can be found.

Ribosome
Endoplasmic reticulum
Golgi apparatus
Cell wall
Vacuoles
Lysosomes
Mitochondria
Cell membrane
Cytoplasm
Chloroplasts

Answers

Answer:

Here you go

Explanation:

Ribosome

✔ both animal and plant cells

Endoplasmic reticulum

✔ both animal and plant cells

Golgi apparatus

✔ both animal and plant cells

Cell wall

✔ plant cells only

Vacuoles

✔ both animal and plant cells

Lysosomes

✔ both animal and plant cells

Mitochondria

✔ both animal and plant cells

Cell membrane

✔ both animal and plant cells

Cytoplasm

✔ both animal and plant cells

Chloroplasts

✔ plant cells only

Answer:

Ribosome

✔ both animal and plant cells

Endoplasmic reticulum

✔ both animal and plant cells

Golgi apparatus

✔ both animal and plant cells

Cell wall

✔ plant cells only

Vacuoles

✔ both animal and plant cells

Lysosomes

✔ both animal and plant cells

Mitochondria

✔ both animal and plant cells

Cell membrane

✔ both animal and plant cells

Cytoplasm

✔ both animal and plant cells

Chloroplasts

✔ plant cells only

Explanation:

edge2021

Which of the following is a characteristic of science

Answers

Answer:

science tries to understand what we can see and give a reason for it

Explanation:

scientists want to understand what see see and then give a reason for it

A student performs an experiment to study the transport of water in and out of cells. He uses clear, semi-permeable plastic bags to represent the cell membrane. The student places three plastic bags of the same size, each containing a 1% concentration sucrose solution, into three different beakers. One beaker contains distilled water, another beaker contains a 3% concentration sucrose solution, and the third beaker contains a 1% concentratIon sucrose solution. The diagram shows the students experimental setup, the plastic bag before it is placed in the beakers, and the appearance of the bags after an hour in each solution. Which statement provides a conclusion about the transport of water in and out of cells based on the results of the students experiment?

Answers

Answer:

B

Explanation:

A. Water moves freely both inside and outside the cell independent of the solute concentration.

B. Water movement into the cell is dependent on the percent concentration of solutes both inside and outside the cell.

C. Water transports solutes out of the cell to balance the percent concentration of solutes both inside and outside the cell.

D. Water moves into the cell solutes move out of the cell to ensure their concentration is balanced both inside and outside the cell.

The correct statement that provides a conclusion about the transport of water in and out of the cells is that water movement into the cell is dependent on the percent concentration of solutes both inside and outside the cell.

Water molecules will always move from the region of higher water potential to the region of lower water potential. The more the solute concentration of a solution, the lower the water potential compared to a solution with a lower solute concentration.  

Hence, water will move from the beaker containing distilled water into the plastic bag containing a 1% sucrose solution until an equilibrium is established - the solution in the beaker is hypotonic to the one in the bag.

On the contrary, water will move from the bag containing 1% sucrose solution into the beaker containing 3% sucrose solution until there is no longer any net movement of water - the solution in the beaker is hypertonic to the one in the bag.

There will not be any movement of water from the bag to the beaker containing 1% sucrose because both solutions are of the same concentration, that is, isotonic.

The correct option is B

In colonial America, geography most directly influenced


1. Religious Practices
2. Voter eligibili
3. Economic activities
4. Family structure

Answers

Answer: 3 Many wealthy American industrialists of the late 19th ... 6 In which pair of events did the first event most directly ... (4) most immigrants spoke English and thus needed ... (2) Americans support the activities of trusts. ... (1) eliminate unfair business practices.

Explanation:

What is the scientific name for a polar bear

Answers

Answer:Ursus maritimus

Explanation:

the scientific name for a polar bear is called Ursus maritimus

Answer:

Ursus arctos

Explanation:

Q2 please answer me thank you so much

Answers

Answer:

a i think

Explanation:

Answer:

A.) plant cells have cells walls and chloroplast, animals cells do not

how does our bodies sometimes act like a thermostat

Answers

We shiver and produce goosebumps to “turn on the heat”, and we sweat to “turn on the cool.” an organism must be able to maintain stable internal conditions in a changing environment

How does the word mutualism relate to the world we live in? (biology)​

Answers

Mutualism describes the ecological interaction between two or more species where each species has a net benefit.[1] Mutualism is a common type of ecological interaction. Prominent examples include most vascular plants engaged in mutualistic interactions with mycorrhizae, flowering plants being pollinated by animals, vascular plants being dispersed by animals, and corals with zooxanthellae, among many others. Mutualism can be contrasted with interspecific competition, in which each species experiences reduced fitness, and exploitation, or parasitism, in which one species benefits at the "expense" of the other. Mutualism is often conflated with two other types of ecological phenomena: cooperation and symbiosis. Cooperation refers to increases in fitness through within-species (intraspecific) interactions. Symbiosis involves two species living in proximity and may be mutualistic, parasitic, or commensal, so symbiotic relationships are not always mutualistic.

Mutualism plays a key part in ecology. For example, mutualistic interactions are vital for terrestrial ecosystem function as more than 48% of land plants rely on mycorrhizal relationships with fungi to provide them with inorganic compounds and trace elements. As another example, the estimate of tropical forest trees with seed dispersal mutualisms with animals ranges from 70–90%. In addition, mutualism is thought to have driven the evolution of much of the biological diversity we see, such as flower forms (important for pollination mutualisms) and co-evolution between groups of species.However, mutualism has historically received less attention than other interactions such as predation and parasitism.

Robinson illustrates how she and her team are using corals to learn more about the ocean’s composition long ago. Briefly summarize what Robinson details about ancient ocean feedbacks.

Answers

Answer:

Robinson explains how she uses layers in fossilized corals to understand what the environment was like overtime. By finding out what mainly makes up each layer and finding out roughly how old each layer is, she can begin to understand what the chemical composition and climate was like when the coral pieces were alive

how come human populations differ from other animal populations

Answers

Answer:

Animal species come in many shapes and sizes, as do the individuals and populations that make up each species. To us, humans might seem to show particularly high levels of morphological variation, but perhaps this perception is simply based on enhanced recognition of individual conspecifics relative to individual heterospecifics. We here more objectively ask how humans compare to other animals ...

Explanation:

With in population, humans show low levels  body height variation in comparison to variation observed in other animal population.

Similarly, human population does not show distinctive levels of body mass variation.

What are the importance of studying human population?

The study of population helps us to understand the process that influence the size, growth, characteristics, and distribution.

Population studies highlight these problems for society, administrators,  political System, economic Planning

The most important terminology which is immensely studied called demography where the study of human population is extremely essential to determine the age, composition.

It is essential to study in every country by analyzing patterns of life expectancy and accurately predict the future.

Demography is important to study, as it characterize the nature population changes over time, such as the aging population

Hence, humans population show low levels  body height variation in comparison to variation observed in other animal population.

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