Which was not developed in the 1800s?


natural selection


germ theory


scientific method


cell theory

Answers

Answer 1

Answer:

germ theory

Explanation:

it was founded in the 19th century and founded by a man named Louis pasteur and robert koch who provided the final clue

Answer 2
Cell Theory is your answer

Related Questions

Which of the following is not a biotic factor?
A. Giraffe
B. Lion
C. Cactus
D. Wildebeest

Answers

Answer:

cactus

dudidjdidj jdudhd

Which proccess remove carbondioxide from the air?

Answers

Answer:

Photosynthesis removes carbon dioxide naturally

Explanation:

When trees or plants take CO2 out of the air and recycle it with oxygen

TINUS
ATP is an abbreviation for adenosine triphosphate, a complex molecule that contains t
phosphates. It is the energy currency of the cell. ATP is used by organisms as energy...th
that require energy.
Which statements regarding the ATP-ADP cycle are true?
ATP synthesis takes place in the mitochondria of eukaryotic cells.

Answers

The given question is incomplete as the group of choices are not given, however, the choices are associated with the question is given below:

ATP synthesis takes place in the mitochondria of eukaryotic cells.

ATP is regenerated from ADP through the process of phosphorylation.

energy is stored in the covalent bonds between phosphates, with the greatest amount of energy in the bond between the second and third phosphate groups.

most of the readily available energy stored in ATP is stored during the manufacture of adenosine.

the ribose sugar in the model above is the direct product of photosynthesis.

Answer:

The correct answer is given below:

Explanation:

ATP synthesis takes place in the mitochondria cell organelle in the eukaryotic cells, however, a small part of ATP generation takes place in other cell regions but most of the ATP synthesis is occurs in the inner membrane of mitochondria which makes it energy house of the cell.

ATP is formed by the addition of phosphorus to ADP and this process is called phosphorylation.

Each bond of the adenosine and its three phosphates has stored energy in their covalent bonds. The last two phosphates have a high amount of energy in their bond.

In dolphins, to have spots on the skin is a recessive trait. One spotted dolphin and one solid gray dolphin have a baby spotted dolphin. Go through the following steps to figure out the genotype of the parent dolphins.

1) what is the genotype of the spotted (recessive) parent?

Answers

Answer:

the spotted parent has the genotype ss

Explanation:

we will use s as the letter when describing the spotted trait.

since spotted is recessive, that parents have to have two little s to have the trait. Since the child also has that, we know that they will have the genotype ss.  the child would have to get a little s from both parents, so the solid parent would have Ss, showing as solid, but still having the gene for spots.

Do carriers for a recessive disorder have the disorder?
O sometimes
O yes
O no

Answers

Sometimes, because a carrier is someone who carries the disorder and can pass it on but they may or may not have symptoms themselves

a plane mirror is useful for seeing

Answers

Oh.... very nice! Yes seeing is nice

mendel,s experiment is applicable not only in plant but also in animals​

Answers

Answer:

Yes, this is true. This is because animals also carry genes which codes for a certain trait, and these traits have their own allele. Mendel's experiment portrayed tall plants and dwarf plants being crossed, moreover the colour of the flowers could also be taken as an example. In the similar way, animals, for example, mice, could be white furred or brown furred. They both carry alleles which codes for their fur colour, like plant alleles which codes for either tall or dwarf.

How might green spaces help reduce the negative impact that humans have on Earth’s water supply?

Answers

It would give nature a place to fight back, and become more healthy, and less hindered. Cities mess up the evaporation cycle, and because of parks, the water is able to be soaked up by grass, and then released through evaporation. When it rains over a city, the water goes into gutters, and becomes more polluted.

How many wolves of the economy in the yellow stone national park ,

Answers

Answer:

94  

Explanation:

there is 94 wolves, 8 packs, and 7 breeding pairs.

why progesterone is called pregnancy hormone????​

Answers

Answer:

Progesterone isn't as important during normal menstrual cycles, but it is very important in pregnancy. It is the hormone which maintains the uterus lining and also avoids the menstrual cycle from taking place in order to prevent the baby from being aborted.

what it means to have codominant alleles

Answers

Answer:

use spell check

Explanation:

What does it mean for a virus to "infect" a cell?
Tir
11
The virus lands on the outside of the cell and remains there until the cell produces more viruses.
The virus lands on the outside of the cell and eats proteins on the surface of the cell.
The virus lands on the outside of the cell and injects its genetic material into the cell.
The virus lands on the outside of the cell and injects its proteins into the cell.

Answers

Answer:

I think the answer is...

the virus lands on the outside of the cell and injects its genetic material into the cells  

i'm not sure but this is what I think...

Explanation:

Viruses usually inject their all genetic material into one cell to individual virion contains multiple copies of its fusion protein.

Which agency is directly related to supervising and managing campgrounds

Us Forest Service

Bureau of land management

Us fish and wildlife service

National park service

Answers

National park service

Answer:

National Park Service

Explanation:

Name one other disease mentioned in the paper
in which there is now a vaccine.

Answers

Answer:

while corona is true, it is not the answer. The answer is smallpox

Explanation:

The other disease mentioned in the paper in which there is now a vaccine is Tuberculosis.

What is a Vaccine?

This is a biological preparation which stimulates the body's immune response against diseases.

Tuberculosis refers to the disease which now has a vaccine known as Bacille Calmette-Guérin (BCG) vaccine.

Read more about Vaccine here https://brainly.com/question/1273396

PLEASE HELP!!! How many ATP can we get from one molecule of phosphocreatine?
a.1
b.2
c.10
d.32​

Answers

answer: b. 2
explanation: took the test

Phosphocreatine is a chemical compound that provides high energy to the skeletal muscles. One molecule of phosphocreatine produces one ATP molecule. Thus, option a is correct.

What is phosphocreatine?

The phosphocreatine system is a way to generate ATP and energy in the body (muscles). During muscle contraction, the phosphocreatine yields a phosphate molecule that in turn produces ATP.

The phosphocreatine system provides quick and fast energy in the form of ATP molecules through the anaerobic system that does not require oxygen. It gives its phosphate group to ADP to produce ATP as,

ADP + phosphocreatine → ATP + Creatine

The ATP-PC system yields only one molecule per phosphocreatine at a very fast rate for the muscles to utilize when doing any exercise or physical activity that involves contraction and relaxation.

Therefore, phosphocreatine produces 1 ATP.

Learn more about phosphocreatine here:

https://brainly.com/question/27960157

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A model of gene expression within the lac operon is shown here. If a mutation occurs in the operator (O) region of the operon that changes the sequence of nucleotides in the operator, which statement(s) predict the outcome of this mutation? Select ALL that apply.

Answers

Answer:

mRNA

Explanation:

Answer:

A and B

Explanation:

I did the question and got if wrong for y'all :)

BRAINLIEST: In dolphins, to have spots on the skin is a recessive trait. One spotted dolphin and one solid gray dolphin have a baby spotted dolphin. Go through the following steps to figure out the genotype of the parent dolphins.

1) what are the POSSIBLE genotypes of the solid grey dolphin?

2) what is the genotype of the baby spotted dolphin?

Answers

Answer:

1) Ss

2) ss

Explanation:

Spots (recessive) - s

No spots (dominant) - S

So the possible combination to get a baby spotted dolphin may be: Ss and ss

Punnett Square:

    |   S   |  s   |

 s |  Ss  |  ss  |

 s |  Ss  |  ss  |

So the genotype of the Solid gray dolphin might have been a dominant allele and a recessive allele, which is Ss.

Moreover the genotype of the spotted baby dolphin might me ss.

11. Josie feels that she will never be good at
math. Her teacher tells her that completing
homework will help her practice using the
equations. Josie explains she is a right-minded
thinker and will never be good at math, Is Josie
correct? Why or why not?

Answers

Answer:

no josie is not correct,right minded and left minded thinking is a suggestive topic and not factual.all things take practise including math, Josie should try her best in math and if she needs too, study at home.

1 point
Which is a correct graphical representation of the organization levels of a
biological system?

Answers

Answer:

1. Biosphere

2. Ecosystem

3. Community

4. Population

Explanation:

The correct graphical representation of the organization levels of a biological system is as follows:

Cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, and biosphere.

What is the level of organization of the biological system?

The level of the biological system may be defined as the arrangement of structures that are usually characterized by relationships with things at higher levels that are being composed of things at the next lower level. A cell is the smallest level of organization for living things while the biosphere is the highest level of organization for living things.

A cell is the basic structural and functional unit of living organisms. The collection of cells gives rise to the formation of tissues which are combindly known as organs. Organs give rise to the organ system that completely formed a living entity.

Therefore, the correct graphical representation of the organization levels of a biological system is well represented above.

To learn more about the Level of organization, refer to the link:

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Which is not a chemical process in the
digestive system?
A. Bile interacting with digested food
in the small intestine
B. Acids reacting with food particles
in the stomach
C. Saliva breaking down food
particles
D. Chewing of food

Answers

Answer:

the process of chewing food is not a chemical process bt the process of tasting the food is a chemical process

lf you find this helpful plz follow me

and mark my answer

Chewing of food is not a chemical process in the digestive system, but a mechanical process. Therefore, the correct option is D.

What is Digestive system?

A collection of organs called the digestive system help break down food into smaller molecules that the body can absorb and use for energy, growth, and repair. It consists of anatomical organs such as the anus, esophagus, stomach, small and large intestine, liver, and pancreas. Food is broken down physically and chemically by the digestive system, which also absorbs nutrients and gets rid of waste.

Chemical process of digestive system involves Bile interacting with digested food in the small intestine, acids reacting with food particles in the stomach and saliva breaking down food particles while the mechanical process involves chewing of food.

Therefore, the correct option is D.

Learn more about Digestive system here:

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In order for high force crossbridges to form in contracting skeletal muscle, calcium must a. bind to calmodulin to phosphorylate the myosin. b. phosphorylate the tropomyosin which moves it. c. phosphorylate the troponin to move the tropomyosin. d. bind to tropomyosin which moves the troponin. e. bind to troponin which moves the tropomyosin.

Answers

Answer:

e. bind to troponin which moves the tropomyosin.

Explanation:

Troponin (Tn) is a protein complex composed of three different proteins: troponin C (TnC), troponin I (TnI), and troponin T (TnT). This complex is found both in skeletal muscles and cardiac muscles, where TnC attaches calcium ions through four and three calcium ion-binding sites, respectively. When a muscle is relaxed, Tn attaches to tropomyosin to prevent muscle contraction. During muscle contraction, calcium channels open and cytosolic calcium ions bind to TnC, thereby Tn changes its conformation and moves the tropomyosin. This process relieves the inhibition of the interaction between actin and myosin filaments, which makes muscle contraction possible.

I need help please um just look at the pictures so yea​

Answers

Answer:

They release C02, which contributes to climate change.

They can cause health issues.

Explanation:

The other two are positive aspects, and these two are true.

How does the ocean affect climate on land?

Answers

Answer:

1.due to land breeze and sea breeze

2.area near the ocean has mild climate

A copper atom has an atomic number of 29 and an atomic mass of 64. What
is the structure of this atom?
A. It has a central nucleus composed of 29 protons and 29 neutrons,
surrounded by an electron cloud containing 35 electrons.
B. It has a central nucleus composed of 29 protons and 64 neutrons,
surrounded by an electron cloud containing 29 electrons.
O C. It has a central nucleus composed of 35 protons and 29 neutrons,
surrounded by an electron cloud containing 29 electrons.
D. It has a central nucleus composed of 29 protons and 35 neutrons,
surrounded by an electron cloud containing 29 electrons.

Answers

Answer:

D just took the test on APX

Which of the three fundamental tissues have a secondary cell well? (Parenchyma, collenchyma and sclerenchyma)

Answers

The answer to your question is Sclerenchyma cells have thick lignified secondary walls. Answer: Sclerenchyma

Pls help me!!! I need help

Answers

Explanation:

option a

option b

option c

Comet and astroids I think

what kingdom should this be placed in?

Answers

Answer:

Animal kingdom

Explanation:

Because it has a nucleus which is absent in the plant kingdom

1.
Which of these statements describes a niche?
- an environmental factor that tends to limit population size

- an increase in the Earth's average atmospheric temperature that causes corresponding changes in
climate, which may result from the greenhouse effect

- the unique living arrangement of an organism defined by its habitat, food sources, time of day it is
most active, and other factors

- none of the above

Answers

C is your correct answer.

- the unique living arrangement of an organism defined by its habitat, food sources, time of day it is most active, and other factors

Answer: the unique living arrangement of an organism defined by its habitat, food sources, time of day it is most active and other factors

Explanation:

yes

Why have scientists developed vaccines?


to research medicines


to diagnose conditions


to treat illnesses


to prevent diseases

Answers

Answer:

to treat illnesses (number 3)

Explanation:

:3

Answer:

scientists have developed vaccines to prevent diseases

Which one of the following is the largest source of greenhouse gases in the atmosphere? A. the burning of fossil fuels B. chemicals released during manufacturing C. the release of carbon dioxide from cellular respiration D. Deforestation​

Answers

a is the answer i believe
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