Submarines use a technology called "sonar" that bounces sound waves off of objects in the water. The sonar operators measure how long it takes for the signal to return to them. The information they get from sonar allows them to know
A.
how massive objects in the water are
B.
if objects in the water are man-made
C.
how far away objects in the water are
D.
what color objects in the water are

Answers

Answer 1

Answer:

c......................

Answer 2

Answer:

C

Explanation:

how far away objects in the water are


Related Questions

Please help me!!!!!!

Answers

Answer:

ANSWER FOR NUMBER 14 The arrows show in the food web what animals eat/get eaten by, and why the arrows can't point the other way is because if they were to point the other way it would be unaccerate, for example if we switch the arrows that means that a hawk would be eaten by a rat.

Explanation:

So yea I hope that helped, I'm not really good w words when it comes to science.

Which layer is it found on?

Answers

Answer:

D. Troposphere

Do people with blue eyes most likely have cancer?

Answers

Answer:

It is based on guesswork and analysis. For example, if 100 people have cancer, 80% of people have blue, green or grey eyes and fair skin, while the other 20% have some other eye colour.

Cells througout a multicellular organism develop different ways to perform various tasks - this is called cellular specialization and/or cell differentiation.

true or false

Answers

It is false hope this helps

What would most likely stop the cells in the liquid from shivering?

Answers

Answer:

Heat

Explanation:

Heat makes you start sweating which warms your body up, which makes your cells up.

Compare the three types of RNA. Note significant similarities and differences. Use the table below to record your observations. basically just finish this table lol...

Answers

Answer: (Structure) mRNA: always single stranded, rRNA: single stranded, twisted upon itself in some regions, tRNA: cloverleaf-like structure

(Function) mRNA: carries the information in the DNA to the ribosomes where it is translated into amino acids of proteins, rRNA: helps assemble tRNA, mRNA, and amino acids to form the polypeptide chain during protein synthesis, tRNA: acts as an adaptor molecule, which identifies correct amino acids corresponding to the anticodon present on it

Explanation: Plato, you're welcome

(Structure) mRNA: always single stranded, rRNA: single stranded, twisted upon itself in some regions, tRNA: cloverleaf-like structure.

(Function) mRNA: carries the information in the DNA to the ribosomes, rRNA: helps assemble tRNA, mRNA, and amino acids to form the polypeptide chain, tRNA: acts as an adaptor molecule.

What is mRNA, rRNA and tRNA?

mRNA carries instructions from the DNA to the ribosome work site. rRNA forms part of the structure of the ribosome and helps to connect pieces together. tRNA brings in the amino acids, which are the pieces that get strung together to make the final protein.

Moreover, the three major types of RNA are: mRNA (messenger RNA) : it provides the template for protein synthesis during translation, tRNA (transfer RNA) : it brings amino acids and reads the genetic code during translation, rRNA (ribosomal RNA) : it plays a structural and catalytic role during translation.

Therefore, the main difference between mRNA and tRNA is that mRNA serves as the messenger between genes and proteins whereas tRNA carries the specified amino acid into the ribosome in order to process the protein synthesis.

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How are fats used in living things?

Answers

the third and fourth one definitely

Answer:

- store + transmit genetic information

- to store energy

- help insulate the body and protect from heat loss

Explanation:

Even though sunlight looks white, what is it really made up of?

Answers

Answer:

White light means your not missing any of the visible color spectrum, so all the colors.

Explanation:

which of the following statements best explains why plants wilt​

Answers

Answer:

needs more context bro

Plants wilt due to lack of water. Dehydration of the plant will cause it to collapse. They also wilt sometimes to prevent damage from high temperatures and the sun. Hope this helps.

1. During mitosis, a single cell divides to produce two daughter cells. What must happen in the original cell so that each of the daughter cells has a complete set of chromosomes?

Answers

In mitosis a cell divides to form two identical daughter cells. It is important that the daughter cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set.

Mitosis is the cell division which occurs in all types of cells in the body. This results into formation of daughter cells with same set of genetic material as the parent cell.

What is Mitosis?

Mitosis is a type of cell division which occurs in all types of cells. This division is also called as Equational division as the genetic content remains constant from the parents to offspring. This process results into formation of two daughter cells which are similar to the parent cell.

In mitosis, a cell divides to form two identical daughter cells with same genetic material. It is important that the daughter cells have a copy of every chromosome in their nucleuc, so the process involves copying of the chromosomes first and then carefully separating the chromosomes copies to give each new cell a full set of genetic material.

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PLEASE HELP WILL CHOOSE BRAINLIEST

Choose all of the following that would require active transport to pass through the membrane

hydrophobic molecules


Polysaccarides


Proteins


Carbon dioxide


Oxygen


Large polar molecules

Answers

Answer:

proteins!

Explanation:

Jonathan designed an experiment to plant lima bean seeds. His variable was to change what kind of light each plant received. He
used a different kind of light with each plant. He hypothesized that the plant grown under the plant light would have the greatest
amount of growth. Did the data support the hypothesis? Explain.

Answers

Answer:

Yes, it was.

Explanation:

The data did support the hypothesis because the data given was generalized on the change of light each plant received. The hypothesis was that the plant light would have the greatest amount of growth. The data was the different light types and the hypothesis was which one he inferred would work best.

Answer:

- The type of plants used in the study

- The number of plants in each experimental group

- A complete citation of the source

Explanation:

conduction of heart beat​

Answers

Answer:

Explanation:

The cardiac conduction system are specialized cardiac muscle cell that are located in the walls of the heart and sends signals to the heart muscle. These signals cause the heart to contract. The main components of this system are AV node, bundle of His, SA node, bundle branches, and the Purkinje fibers.

10. Which molecule is critical to the body’s ability to absorb oxygen into the blood and distribute it effectively? A muscular B starch C chlorophyll D hemoglobin

Answers

Answer:

Hemoglobina  

Explanation:

Explain why reintroducing wolves changed the ecosystem of the park?
WILL GIVE BRAINLIEST

Answers

Answer:

After 70 years without wolves, the reintroduction caused unanticipated change in Yellowstone's ecosystem and even its physical geography. ... The healthier bear population then killed more elk, contributing to the cycle the wolves started.

Explanation:

The reintroduction of wolves had several positive effects on the ecosystem.

What are the effects of reintroduction of wolves?

The reintroduction of wolves caused a trophic cascade of events in the Yellowstone national park. This resulted in an increase in the population of beavers and also brought back several forms of vegetation.

The killing of wolves in the 1930s resulted in the shifting of predatory pressure on the elk population. But, they were much less active in winter. They browsed on cottonwood plants and aspen.

But now, the predatory pressure came back on wolves. This keeps the elks more active. This also resulted in an increase in vegetation.

The reintroduction of wolves also resulted in the increase in the population of beavers because of the recovery of willow strands reflourished due to the activeness of the elk.

Therefore, the reintroduction of the wolf population greatly impacted the ecosystem of the Yellowstone national park causing a ripple of positive effects.

Read more about the ecosystem, here

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An autotroph is an organism that produces its own food from sunlight or
other inorganic substances.
True
False

Answers

Answer:

True

Explanation:

Autotrophs like plants uses the sun, carbon dioxide, and water to produce their foods

Answer:

true?

Explanation:

An egg is protected by its outer shell. However, the shell also allows moisture and air to pass through. Which cell structure performs a similar function? A. cell membrane B. cytoplasm C. nucleus D. vacuole

Answers

Answer:

A. Cell membrane

Explanation:

The cell is the basic unit of the living organisms. The cell consists of the various cell organelles like nucleus, mitochondria and Golgi. The cell membrane covers the cell boundary.

The outer shell protects the egg and allows the exchange of moisture. The plasma membrane performs the similar functions ad allows the transport of some selected particles only.

Thus, the correct answer is option (A).

Answer:

A. cell membrane

I hope this helps

sorry go to my page ill post it again for the same amount of points. keep refreshing posting now

Answers

Okay I will and I got you

18. A solution of CaCl2is_?__ [ A. acidic
B. basic
N. neutral]

Answers

I believe the answer is N

what do bacteria cells and human cells have in common

Answers

Answer:

They have cytoplasm, a plasma membrane, and ribosomes.

Explanation:

What are some of the medical advances made recently?
MRIS
Camera's small enough to swallow
Sterilization of instruments
Eye glasses
Penicillin
CAT scans

Answers

most reasonable answer is the swallowable camera one. mris and cat scans were invented in the 70s and the rest of the answers are around the 1800s or before.

Answer:

B, C, F

I'm not sure if these are exactly correct, but I hope I helped at least a bit!

PLEASE ANSWER ASAP!!!

Answers

Answer:

An ecosystem

Explanation:

Answer:

D: an ecosystem

Explanation:

This is because if you're surrounded by all communities to make one that is classified as an ecosystem.

Ecosystems that experience the same climate conditions are grouped together into larger regions called
A.cycles
B.equators
C.poles
D.biomes

Answers

The answer is D biomes !!!!

Topo map ,30 points! !!!

Answers

Answer:

410   500  450

Explanation:

a collection of tissues that work together to perform a specific function would be known as which of the following?

Question 12 options:

organ


biome


body systems


molecules

Answers

a collection of tissues working together is an Organ

Why are epithelial cells in membranes

packed tightly?

to keep organs connected

to protect organs

to form different layers

Answers

Answer:

to protect organs

Explanation:

Epithelial cells are cells found in the human skin. They are tightly packed cells which helps to protect organs in the human body.

The cells are divided into different layers with an inner part and the outermost layer.

The skin is the largest organ of the human body. It protects all organs from the external environment.

why is the cell membrane often referred to as a "phospholipid bilayer"​

Answers

Answer:

Porque esta formada por dos capas de moléculas de lípidos

Explanation:

The temperate grasslands biome includes regions of several continents. What do all of the regions have in common? A. the same species of grazing animals B. the same species of grasses C. the same seasonal patterns of temperature and precipitation D. the same amount of land that is covered in grasses
]

Please answer quick will give you brainliest

Answers

Answer:c

Explanation:

Bc

A biome is a major community of plants and animals living in a specific geographic area and adapted to specific climate conditions. There are five major types of biomes: grassland, forest, desert, aquatic and tundra.

These major biomes can be divided into different categories (e.g., temperate grasslands).

The grassland is a biome that has grasses as the dominant vegetation.

The temperate grasslands have in common the same seasonal patterns of temperature and precipitation (Option C).

In these regions (temperate grasslands) rainfall is insufficient to support trees.

The temperate grasslands have four well-defined seasons. i.e., spring, summer, fall (autumn), and winter.

Some examples of temperate grasslands include Argentine pampas, Euro Asian steppes and North American prairies.

In conclusion, the temperate grasslands have in common the same seasonal patterns of temperature and precipitation (Option C).

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32. If available, the body will always digest which macromolecule for energy first?
A. lipids B. proteins C. enzymes D. carbohydrates

33. The class of macromolecule that would most likely be involved in contracting muscles would be A. lipids B. proteins C. enzymes D. carbohydrates

Answers

Answer:

Sty I have not learned this yet hopefully i will next year

D, carbohydrates are the body’s main source of energy.

The picture shows fruit produced by two parents and fruit produced by one of their offspring.

Which of these best describes this inheritance pattern?
codominance because he fruit color of the offspring is an intermediate form of the parents’ fruit color
codominance because both parents’ colors are expressed in the offspring
incomplete dominance because both parents’ colors are both visible in the offspring
incomplete dominance because the fruit color of the offspring is an intermediate form of the parents’ fruit color

Answers

Answer:

d

Explanation:

I got it right on edge

Answer:

its D

Explanation:

because if one is Black and white the offspring would be Gray

HOPE THIS HELPS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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