What was the most important invention to marine science?

Answers

Answer 1
The invention of the marine chronometer by John Harrison in the middle of the 18th century made true ocean navigation possible.

Related Questions

3 examples of situations where a force is a nuisance

Answers

Answer:

getting shoved

getting hit

stubbing your toe

Explanation:

NEED HELP PLEASE! Based on the figure, which of the following statements best describes the relationship between regions 1 and 2 of the protein?

A- Region 1 is hydrophilic because it interacts with the interior of the membrane, whereas region 2 is hydrophobic because it interacts with an aqueous environment.

B- Region 1 is hydrophilic because it interacts with an aqueous environment, whereas region 2 is hydrophobic because it interacts with the interior of the membrane.

C- Region 1 is hydrophobic because it interacts with the interior of the membrane, whereas region 2 is hydrophilic because it interacts with an aqueous environment.

D- Region 1 is hydrophobic because it interacts with an aqueous environment, whereas region 2 is hydrophilic because it interacts with the interior of the membrane.

Answers

Answer: B

Explanation: Basically the same reasoning as the phospholipid bilayer.

The best description of relationship between regions 1 and 2 of the protein is region 1 is hydrophilic because it interacts with an aqueous environment, whereas region 2 is hydrophobic because it interacts with the interior of the membrane. Thus, option B is correct.

What is hydrophilic and hydrophobic?

Hydrophilic because it interacts with the interior of the membrane, whereas region 2 is hydrophobic because it interacts with an aqueous environment and hydrophilic because it interacts with an aqueous environment, whereas is hydrophobic because it interacts with the interior of the membrane.

Hydrophobic because it interacts with the interior of the membrane, whereas hydrophilic because it interacts with an aqueous environment and  hydrophobic because it interacts with an aqueous environment, whereas hydrophilic because it interacts with the interior of the membrane.

Therefore, The best description of relationship between regions 1 and 2 of the protein is region 1 is hydrophilic because it interacts with an aqueous environment, whereas region 2 is hydrophobic because it interacts with the interior of the membrane. Thus, option B is correct.

Learn more about hydrophilic and hydrophobic here:

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What are seven easily observable characteristics of all living things

Answers

Answer:

Explanation:

-Responsiveness to the environment - The organisms can respond to objects in its environment

-Growth and change - The organism can develop, grow, change

-Ability to reproduce - The organism can reproduce on its own or with others from their species

-Have a metabolism and breathe

-Maintain homeostasis

-Being made of cells

-Passing traits onto offspring


How is static electricity created?

a. Two objects that are both positively charged repel each other and release
electric energy.


b. Two objects that are both negatively charged become attracted and create a
spark.

c.
Two highly conductive materials are placed within close proximity of one
another.
d. Friction between two objects causes a transfer of electrons from one object to
the other.
.

Answers

Answer:

d

Explanation:

So, when a person or any object has extra electrons, it creates a negative charge. These electrons thus get attracted to positive electrons (as opposite attracts) of another object or person and vice versa. The shock that we feel sometimes is the result of the quick movement of these electrons.

The rubbing of certain materials against one another can transfer negative charges, or electrons. For example, if you rub your shoe on the carpet, your body collects extra electrons.

Answer:

d. Friction between two objects causes a transfer of electrons from one object to  the other.

Explanation:

If electrons are transferred by rubbing two objects together, the result of the friction is that one object becomes positively charged by losing electrons, and the other object becomes negatively charged by gaining them. This is known as static electricity.

Describe what occurs as epidermal cells move away from the dermis.

Answers

Answer:

Your skin blisters, and a clear liquid fills the bubble

Explanation:

Quicklyyyyyyy neeeeeed help
All of the following are arguments used by global warming skeptics except
A. climate models for global warming have continually been wrong.
B. the dire consequences of global warming have not come to pass.
C. Earth has natural temperature cycles it goes through
D. an increase in temperature would actually be good for the climate

Answers

Answer:

D

Explanation:

Answer:

D

Explanation:

everything has is a reasonable answer and proof can be found to back it up except for D

Mitochondria replicate themselves and even contain a small amount of

Answers

Answer:

I think it's a small amount of ATP

Use the paragraph to answer the question. A team of biologists has been investigating fireflies to determine the cause of their declining population. Habitat loss is the most likely factor in the decline of the bioluminescent bug. Light pollution also plays a role. Excessive light disrupts the insect’s mating ritual. Write one to two sentences giving an example of technical language in this paragraph and explaining how it affects the overall meaning of the paragraph. (2 points)

Answers

Explanation:

Biologists have discovered that the reason behind the decline of fireflies is habitat loss, light pollution and excessive light; excessive light can disrupt the insects mating ritual.

What does the sodium-potassium pump keep at a high concentration outside of the cell?
A. potassium

B. sodium

Answers

Answer:

B. sodium

Explanation:

2 potassium ions are moved inside the cell and 3 sodium ions are moved out. So there is more sodium on the outside of the cell.

i am horrible at science. please help

Answers

breathing more deeply and frequently

The third one, I had this question around a week ago

An experiment is conducted to determine the effects of energy drinks on an individual’s heart rate groups A and B have matched for all factors such as age and sex.Each person in group A is given two red bull energy drinks for breakfast and lunch and then the heart rate is measured.Each person in group B is given water to drink with breakfast and lunch and then their heart rate is measured.Both groups are Fed the same breakfast and lunch the results are recorded

Answers

Answer:

Explanation: this is complicated

How many moons does Saturn have?
O A.
OB. 1
O c. 4
O D. More than 50

Answers

Answer:

D

Explanation:

Saturn has 82 moons.

Answer:

D

Explanation:

How many moons does Saturn have? A total of 82 confirmed moons, surpassing even Jupiter, which has 79. There could be even more hidden moons that orbit around Saturn, and as such, this gas giant will be from now on not only recognized for its prominent rings but also its numerous moons.

Choose one of the animals listed on the page, and write a brief description of its characteristics. Be sure to discuss any ways
the animal has adapted to its environment. (Site 1)

Answers

Answer:

The Horned Viper has two little horns on its head thats why its called The Horned Viper.  The Horned Viper is a snake that has venom in its bite that can kill humans.  The snake can grow to about two feet long.  The Horned Viper likes to blend in with the sand all around it.  The snake burrows into the sand and waits for birds, lizards, and small mammals to eat.

Explanation:

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Nucleotide are composed of phosphate group, a sugar , and a nitrogenous base. DNA is made up of long strands of nucleotide. which part if the above molecule can differ between nucleotide?
A- The Sugar
B- The Phosphate Group
C- The Nitrogenous Base
D- The Sugar and Phosphate Group

Answers

Answer:

C

Explanation:

The nitrogenous base can change

1. which of the following is a function of the nucleus?
stores DNA
stores sugars
builds proteins
packages proteins
2. which of the following statements about the nucleus is not true?
the nucleus stores the coded instructions for making the cell's proteins.
the nucleus usually contains a nucleolus region which where ribosome assembly begins.
the nucleus is the site of protein assembly.
the nucleus is surrounded by a nuclear envelope that lets materials in and out.
3. which organelle breaks down organelles that are no longer useful?
Golgi apparatus
lysosome
endoplasmic reticulum
mitochondrion
4. which of the following is a function of the cytoskeleton?
helps a cell keep its shape
contains DNA
surrounds the cell
helps make proteins
5. which of the following is a function of vacuoles in an animal cell?
convert energy
make proteins
store materials
break down molecules

pls help me! <3 :)

Answers

Answer:

1. Stores DNA

2. The nucleus is NOT the site of protein Assembly

3. Lysosome

4. Helps a cell keep its shape

5. Lysosomes store materials

Explanation:

Which word best describes the hot, weak, inner part of the upper mantle, which can flow?


lithosphere


asthenosphere


crust


core

Answers

your answer should be asthenosphere!

Answer:

asthenosphere

Explanation:

Which structures are found in both prokaryotic and eukaryotic cells?

Cell membrane and cytoplasm/ cytosol

Cell membrane and nucleus

Cytosol/ cytoplasm and chloroplasts

Nucleus and mitochondria

Answers

Answer:

cell membrane and cytoplasm/cytosol

Explanation:

Will award 80 points

Gametes contain ______ copy/copies of each gene.

Two

Four

One

Thee

Answers

Answer:

one

There may be many possible alleles for any gene, but a diploid cell or animal contains only two alleles of each gene or two copies of a single allele; a haploid gamete contains one copy of each gene, so only one allele.

Since diffusion is the primary method one celled organisms use for material transport, the ratio of____________ is an important factor for them

Answers

Answer:

uffff..... that's a tough one

What type of bond is being formed in this polymerization reaction to link two amino acids together?

Answers

answer : peptide bond or chemical bond between two compounds . (:

Living cells are classed as either prokaryotic or eukaryotic. Which of the following characteristic(s) identify eukaryotic cells? Select all that apply.
are produced by division of another cell
comprise most multi-celled organisms
contain DNA
have a nucleus
have membrane-bound organelles
mostly single-celled organisms
contain cytoplasm
are the smallest unit of living matter

Answers

Answer:

have nucleus have membrane bound organelles have cytoplasm contain DNA

are there more tissues or more organs in your body? explain your reasoning.

Answers

Answer:

More tissues.

Explanation:

Each organ is made up of several different types of tissue. Therefore, for every organ in the body, there are many more tissues.

Which tectonic plate boundary caused the structure that is circled in the image?

Answers

Answer:

I'm guesssing it's B? I did this a very long time ago( two weeks ago)

Explanation:

Most divergent plate boundaries are underwater and form submarine mountain ranges called oceanic spreading ridges. While the process of forming these mountain ranges is volcanic, volcanoes and earthquakes along oceanic spreading ridges are not as violent as they are at convergent plate boundaries.

Which of the following is made of cells?
Which of the following is made of cells A:rock B:snowflake. C:rain drop. D:leaf

Answers

The answer is D because a leaf is made of cells

Why are bananas curved?

Answers

Answer:

Bananas are curved since they grow towards the sun!

Answer:

Because thyy grow by the sun.. or something like that..

Explanation:

Two differences between hormones and the nervous system

Answers

Answer:

Hormones can be proteins, lipids or cholesterol-based molecules. Neurotransmitters are protein. The main difference between hormones and neurotransmitters is that Hormones are produced in the endocrine glands and released into the bloodstream where they find their movement targets at a distance from their origin. In contrast, Neurotransmitters are released into the synaptic space by a terminal of an excited presynaptic nerve cell and transmit a nerve signal to the neighboring postsynaptic nerve cell.

Explanation:

Answer:

the nervous system and endocrine system (hormones) is that the nervous system uses electrical impulses to send messages through neurons while endocrine glands use hormones to send messages to the target cells through the bloodstream.

A teacher performing a demonstration finds that a piece of cork displaces 24 mL of water. The piece of cork has a mass of 6 g. What is the density of the cork?

Answers

Answer:

  0.25 g/cm³

Explanation:

Density is the ratio of mass to volume:

  (6 g)/(24 mL) = 0.25 g/mL = 0.25 g/cm³

_____

1 mL = 1 cm³. Units of density in the cgs unit system are g/cm³.

i'll give you brainliest if you put this in your own words
The pressure on the inner core makes the inner core into a solid state, the temperature is hotter that the outer core but it's not hot enough to melt a substance do to the pressure squeezing down from all the layers above!

Answers

Answer:

The pressure on the inner core puts the inner core into a solid state, therefore the temperature is hotter than the outer core, but not enough to melt a substance due to the pressure squeezing down from the other layers above.

Explanation:

Un niño que ha enfermado de paperas o varicela, no desarrollará estas
enfermedades en una segunda oportunidad, porque:

I. la piel, mucosas y lágrimas impiden el ingreso de los microbios.

II. en el primer contacto adquirió anticuerpos.

III. interviene la inmunidad Adaptativa, la cual presenta "memoria".

IV. su sistema defensivo está preparado frente a una segunda exposición

a. I y II son correctas

b. III y IV son correctas

c. II, III y IV son correctas

d. I, II y III son correctas.

Answers

Respuesta:

La respuesta correcta es la C, ya que II, III y IV son correctas.

Explicación:

Nuestro sistema inmunológico nos defiende de agentes patógenos que pueden enfermarnos, y está compuesto por dos tipos distintos de inmunidades: la inmunidad innata y la inmunidad adaptativa.

La inmunidad innata es aquella que reacciona primero cuando se presenta una amenaza, atacando a los patógenos de manera inespecífica gracias a mecanismos que ya existían antes de que se desarrolle la infección. Cuando se trata de inmunidad innata, nuestras principales barreras de defensa son la piel y las mucosas, y las células de la respuesta inmune de mayor relevancia son los neutrófilos, entre otras.

Por el contrario, la inmunidad adaptativa, es de respuesta tardía y puede actuar de maneras diferentes dependiendo de cuál sea el patógeno invasor. Hay dos tipos de inmunidad adaptativa, la humoral y la celular. De la inmunidad humoral participan principalmente los linfocitos B, que fabrican anticuerpos específicos; mientras que la inmunidad celular es llevada a cabo por linfocitos T. La ventaja que tiene la inmunidad adaptativa en comparación con la innata es que es específica, diversa, más eficaz, y POSEE MEMORIA.

Las células de la inmunidad adaptativa presentan la capacidad de "recordar" cómo el cuerpo actuó ante una amenaza en el pasado para poder llevar a cabo un plan mucho más eficaz. Esta es la razón por la que las vacunas funcionan: porque se le inyecta a los individuos una versión débil del patógeno (por ejemplo, del virus que causa la varicela) para que el cuerpo "aprenda" a vencerlo para cuando se encuentre con ese microorganismo en un futuro.

1. Which of the following is NOT a major source of freshwater pollution?
A. Human and animal wastes
B. Industrial wastes
C. Wetlands
D. Agricultural chemical
in

2. Pesticides are most likely to be found in runoff from
B. Roads
C. Farm fields
D. Homes
E. Factories

3. What is an estuary?
A. A coastal inlet where fresh and salt water meet.
B. A tropical grassland
C. A river that flows into a larger river
D. A landform with high elevation and high relief.

Hi can y’all help me answer does just started 6th grade .. I will give you brainlest plz help

Answers

Hey :)

1- C: wetlands

2- C: farm fields

3- C: A river that flows into a larger river

(an estuary is the tidal mouth of a large river, where the tide meets the stream)

Hope this helps :)
Wetlands are not a major source of freshwater pollution. Pesticides are most likely to be found in runoff from farm fields. An estuary is a river that flows into a larger river.

What is Pollution?

Pollution may be defined as any form of unwanted substances or impurities which are present in the atmosphere of the earth that harm the lives of living entities.

Human and animal wastes, industrial wastes, and agricultural chemicals are potent sources of freshwater pollution.

Pesticides are generally spread in the agricultural fields to protect the crop from pathogens and are most likely to be found in runoff from farm fields during the rainy season.

An Estuary is a mini-ecosystem in which freshwater meets the marine water near the sea.

Therefore, it is well described above.

To learn more about Estuaries, refer to the link:

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