Select the correct answer.
Sonar stands for “sound navigation and ranging.” What assumption was proved wrong after the invention of sonar?

A.
The age of the ocean floor is variable.
B.
The ocean floor is featureless.
C.
The ocean floor is changing.
D.
The ocean floor is denser than continental crust.

Answers

Answer 1

Answer:

b

Explanation:


Related Questions

Please Help its Biology

Answers

Picture 1: digestive
Picture 2: integumentary
Picture 3: integumentary
Picture 4: circulatory
Picture 5: immune
Picture 6: muscular
Picture 7: reproductive
Picture 8: reproductive
Picture 9: respiratory

Which conditions are usually the effect of a low air pressure system?


cold, dry weather


hot, dry weather


clear, dry weather


cloudy, wet weather

Answers

Cloudy, wet weather

The conditions of a low air pressure system are usually cloudy and wet weather. Thus, the answer is option C. cloudy, wet weather

Order the organs of the digestive system from the start to finish.
anus = large intestine = mouth = esophagus = rectum = small intestine = stomach​

Answers

Answer: mouth, esophagus, stomach, small intestine, large intestine, rectum and anus

Explanation: Hope this helps!

Which of the following is an example of mutualism?
A. Twisting about like a high-flying acrobat, the gray flycatcher plucks moths from the air.
B. On the bird feeders of many residents of southern Illinois, people can watch the fox squirrels and gray squirrels fight with each other for the bird seed, while the birds get scared away by the activity!
C. Scratching with great vigor, the chipmunk tried to knock loose the tick stuck firmly to its ear.
D. Some biologists have observed Egyptian Plovers, a type of bird, land on the open mouth of a Nile crocodile without being eaten and remove leeches stuck firmly to the crocodile's gums.

Answers

Answer:

D. Some biologists have observed Egyptian Plovers, a type of bird, land on the open mouth of a Nile crocodile without being eaten and remove leeches stuck firmly to the crocodile's gums.

Explanation:

Mutualism is when two animals are together and they are benefitted and nobody gets harmed. In this situation, the bird and the crocodile aren't attacking each other but they are both helping each other. The bid gets a nice meal and th crocodile can get rid of those leeches. In the other situations there are teo creatures but one ends up getting eaten and that is not what mutualism is about.

2. What field of science are homologous
structures used as evidence for?
er
O photosynthesis
O evolution
O cell theory
O big bang

Answers

I think the answer is Evolution! Brainiest please.
Evolution................

Phosphofructokinase (PFK) is an enzyme that converts fructose 6-phosphate to fructose 1,6-bisphosphate, by adding a phosphate group. This is the first committed step of the metabolic pathway of glycolysis, and thus it is very tightly regulated. AMP binds to PFK at a site distinct from the binding site for fructose 6-phosphate, and stimulates the formation of fructose 1,6-bisphosphate. ATP binds to PFK at a site distinct from the binding site for fructose 6-phosphate, and inhibits the formation of fructose 1,6-bisphosphate. There are other regulators of this enzyme as well. What is the role of AMP in this example?
A. Competitive inhibitor
B. Noncompetitive inhibitor
C. Allosteric inhibitor
D. Allosteric activator
E. Catalyst

Answers

Answer:

D. Allosteric activator

Explanation:

In an enzyme, the allosteric site is a site/motif different from the active site, (i.e., the site with catalytic activity) which is able to interact with regulatory effector molecules in order to activate or inhibit enzymatic activity by influencing the tridimensional (3D) structure of the enzyme. An allosteric activator is an effector molecule with the ability to bind to a specific enzyme at a different site than the active site, thereby modifying the shape of the enzyme and increasing the affinity of this enzyme for its substrate. Moreover, Adenosine monophosphate (AMP) is a nucleotide composed of a phosphate group, a sugar ribose, and an Adenine (A) base. This effector molecule (AMP) has shown to allosterically stimulate diverse enzymes in physiological conditions (e.g., AMP-activated protein kinase).

Which of the following statements about green algae is true?


a. They are found in dry areas on land

b. They are multicellular plants.

c. Evidence suggests they were the first plants.

d. Like other plants, they have true-water conducting tissue.​

Answers

I think it's (c). Evidence suggests they were the first plants

Explanation

Evidence shows that plants evolved from freshwater green algae, a protist

There's similarities between green algae and plants .both plants and green algae contain the same form of chlorophyll.

but land plant are multicellular and autotrophic

Which organelle stores the information that determines an individual's hair 1 point
color?

A.Organelle 1

B. Organelle 2

C. Organelle 3

D.Organelle 4

Answers

Answer:

A.

Explanation:

Which observation of a plant supports the inference that photosynthesis can take place? *

A) a strong, sweet smell
B) a rough, dry texture
C) a green color
D) a smooth stem

Answers

Answer:

C) a green color

Explanation:

the green represents the chloroplasts present in the plant that contain the chlorophyll

Hemophiliacs have blood that does not coagulate well, and they often die at a young age. The disease allele is recessive and X-linked. The normal allele (N) is completely dominant over the disease allele (n). If a hemophiliac woman and a non-hemophiliac (normal) man have children, what percentage of their sons would be expected to have the disease? What percentage of their daughters would be expected to have the disease?

Answers

o percent of the son and daughter will have the disease but they

0 percent but they be hetrozygous hemophiliac

can anyone pls help me with this?!

Answers

Answer:

1/2

Explanation:

how do we impact the Earth?​

Answers

HOW DO WE IMPACT THE EARTH?

Human-caused impacts on planet Earth have become a recurring theme, and more and more people speak of a path of no return. Global warming, greenhouse gases, the exploitation of natural resources and the production of solid and atmospheric waste are some of the most urgent problems that the global community must deal with if we want a quality future for the next generations.

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BRAINLYMENTALMENTE

Oxygen from the air enters the blood stream at what location?
A) Aorta
B) pulmonary vein
C) alveoli
D) pulmonary artery

Answers

Answer:

alveoli

Explanation:

Construyamos 5 preguntas que nos sirvan para conocer más acerca de qué son las normas y las leyes y para qué nos sirven,

Answers

Answer:

Preguntas:

1- ¿Cómo definiría a una norma y a una ley?

2- ¿Cuál es la diferencia entre ambas?

3- ¿Qué sucede ante el incumplimiento de una norma y una ley?

4- ¿Quién define una norma y una ley?

5- ¿Cuáles son los ejemplos que podría dar acerca de las leyes y las normas?

Explanation:

Las preguntas formuladas sirven para crear los conceptos de normas y leyes y ahondar en su significado. De esa manera se construyen sus significados, sus límites y se pueden comparar ambas palabras. A su vez, es necesario establecer quién debe controlarlas y ayudar con ejemplos permite visualizar de manera más gráfica y con ejemplos más sencillos para poder entender.

True or false Follicle-stimulating hormone stimulates the production and secretion of testosterone?

Answers

Answer:

True

Explanation:

follicle stimulating hormone (FSH) which is produced by the pituitary gland stimulates the testis to produce sex hormone.

In a Hardy-Weinberg population with two alleles, A and a, that are in equilibrium, the frequency of the allele a is 0.4. What is the percentage of the population that is rr for this allele? (please explain)

Answers

They answer is 0.48 and I sent an image to help explain it okay.

Which two systems work together to make the body move?
Muscular and Digestive
Digestive and Circulatory
Circulatory and Skeletal
Skeletal and Muscular

Answers

Answer:

The correct answer is Skeletal and Muscular Systems.

If you have the template DNA strand with GCG, what is the complementary amino acid after translation?​

Answers

CGG

it has been transcribed

Why is starch an important molecule in gravitropism?
It is heavy
It is a hormone
It is found only in roots
It is responsible for root cell division.

Answers

Answer:

Its is only found only in roots

Explanation:

It is only found in Roots

Nucleic acids carry something that
makes you unique and a one of a
kind. What is this?
A. lipids
B. genetic code
C. carbohydrates
D. proteins

Answers

Answer:

The answer is genetic code I hope it helps you

what are milk dairy products meat and beans high in?

Answers

Explanation:

Not only are dairy foods like milk, cheese, and yogurt excellent sources of protein, but they also contain valuable calcium, and many are fortified with vitamin D.

Answer:

proteins mostly , calcium and also vitamin D

If all photosynthesizing organisms were removed from the planet would animals still be able to perform cellular respiration?

Answers

Answer:

No

Explanation:

This is because oxygen will not be available for breathing and energy will not be released for cellular activities because photosynthesizing organisms have chlorophyll and trap light energy ffrom sunlight , using carbondioxide and water to produce glucose and oxygen. Oxygen is the by product which is the gas that is inhaled by living organisms during respiration and also break glucose to release ATP. Therefore without these organisms, respiration will be difficult.

20. Many of California earthquakes are caused by?

1.two plates sliding past one another.
2.an oceanic plate and a continental plate colliding.
3.two continental plates colliding.
4.none of the above

Answers

Answer:

The earthquakes of California are caused by the movement of huge blocks of the earth's crust- the Pacific and North American plates. ... About two-thirds of this movement occurs on the San Andreas fault and some parallel faults

Over many generations, the percentages of individuals in a population with different traits for
fur pattern changed.

Which statement best explains this change in fur pattern in the population?

Answers

Answer:

B

Explanation:

Will give brainliest... How can understanding the principles of succession help to combat deforestation?

Answers

Explanation:

Secondary succession occurs after a disturbance such as a forest fire, where there is still some organic matter to allow new plants to grow. Both types of succession take place over long periods of time and result in the communities reaching a state of equilibrium.

Which of the following statements best supports Mendel's Law of Segregation?
Mendel law of segregation

Answers

Answer: The answer is C, the individual alleles that make up the gene must SEGREGATE (which means separate) during gamete formation, hence the name “law of segregation”

Explanation: Hope this helps

During gamete formation, the individual alleles that comprise a gene must separate. The correct option is C.

What is law of segregation?

As per Mendel's law of segregation, "during gamete formation, every gene segregates from each other so that each gamete conveys only one allele for each gene." The second law of inheritance is the law of segregation.

During gamete formation, the individual alleles that comprise a gene must separate from each other in a particular way.

Thus, the correct option is C.

For more details regarding law of segregation, visit:

https://brainly.com/question/4222868

#SPJ2

The missing options of the question are:

A-individual traits are inherited independently of one another.B-dominant traits are always separated from recessive traits during reproduction.C-the individual alleles that make up a gene must separate during gamete formation.D-breeding two true individuals together always produces offspring‘s with the recessive phenotype

Eloda is a producer that lives in freshwater. It is a popular choice for awuiriums. Learn more about what can affect the p…

Answers

Answer:

Where can I learn more? Seems like an interesting topic

Explanation:

If a woman who is heterozygous for the hemophilia trait and a hemophiliac man have children, what percentage of their sons would be expected to have the disease? What percentage of their daughters would be expected to have the disease?

Answers

Answer:

none of them or 0 percent

many of the molecules found in the body are organic.
A: make an argument for which three biological molecules you feel are the most important for the body.
B: water is inorganic but still essential. could humans live without water? why or why not?​

Answers

A. The three most important biological molecules are proteins, nucleic acids, and carbohydrates. Proteins are responsible for signaling receptors and play a key role in DNA production. Nucleic acids, similar to proteins, make up our DNA and make us who we are. Carbohydrates provide us with energy and help our body function.

B. We’ve become so dependent on water that I’d say it’s impossible for humans to live without it. At the most fundamental level, everything we consume — both literally and metaphorically — contains or utilized water. Our favorite foods, drinks, and even buildings contain a percentage of water. Maybe things would be different if we hadn’t allowed it to play such an essential role in practically everything we use, but they aren’t. We need water, which is why going 2 weeks without water could kill us. Sure, there are substitutes for water like milk, but milk is not as good for us as water is. Water balances and purifies our body, while milk fills it up with more waste.

Chlorophyll is a green pigment in plants responsible for harnessing sunlight to help the plant produce sugars through the process of photosynthesis. If several tomato plants were to be grown under lamps producing only a single color of light, what would be the least effective choice for light color

Answers

Answer:

The correct answer is - green color light.

Explanation:

The least effective choice of color would be green color. The plants absorb all different wavelength lights of the visible light spectra but the only color that is not absorbed and reflected back is green color light.

The reflection of the green color light gives the plant its green color. The most absorbed color is violet and orange (chlorophyll a) and blue and yellow by chlorophyll b. Therefore, for the production of sugar and fruit in this tomato plant, green color light would be least effective.

Answer:

green color light

Explanation:

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