Answer:
Urey and miller cooked a "primordial soup" with Hadean gases, water and electricity to make glucose, acetic acid, amino acids and lipids.
Explanation:
In the Miller-Urey experiment, the aim was to reproduce the conditions of the earth before the existence of life, with the objective of demonstrating the formation of organic matter from inorganic molecules.
The scientists took water and gases present in the Hadean eon —previous to the existence of life— such as methane, carbon dioxide, hydrogen, nitrogen and even ammonia, the primordial soup. This mixture was subjected to electrical discharges, inside closed containers.
The results were some organic molecules, including glucose, acetic acid, amino acids and fatty acids. In these results the presence of macromolecules, such as proteins or nucleic acids, is not appreciated, however it was a significant contribution to the knowledge of the origin of life on earth.
Fill in the blank lines in the diagram above to label the two types of connective tissue
shown, then describe the function of each below.
Answer:
ligaments connect one bone to each other while tendon connect muscle to bone
Answer:
The first line that connects bone to the biceps, which is a muscle, is a tendon since the tendon connects bone to muscle while the other line down there connects bone to bone which means it is a ligament.
Explanation:
At what temperatures can monarch fly?
Answer:55 degrees
Explanation:In order for an adult monarch to fly, temperatures need to be above 55 degrees Fahrenheit.
Answer:
Temperatures need to be above 55 degrees Fahrenheit.
Explanation:
Two things you would do to help determine if these things are living
Answer:
Explanation:
"All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, adaptation, growth and development, homeostasis, energy processing, and evolution. When viewed together, these characteristics serve to define life."
A bird stalks, kills, and then eats an insect. Based on its behavior, which ecological terms describe the bird? Choose all that apply.
Carnivore
Carnivore
Autotroph
Autotroph
Heterotroph
Heterotroph
Producer
Producer
Herbivore
What is the original source of all energy in a food web?
environmental science own words pls i need it
Why did the directions instruct you to draw your observations instead of just writing them down?
___________ control all chemical reactions including metabolic processes like photosynthesis and cellular respiration
Answer:
Explanation:
cellular respiration
Which is evidence for the idea that cells are the basic units of life?
Answer:
cell nucleus.........................
Explanation:
s a compound considered a pure substance? Why or why not?
Answer:
yes
Explanation:
A chemical compound is considered to be a pure substance. This is because each molecule of the chemical compound has the same chemical formula.
Answer:
Yes, a compound is considered a pure substance.
Explanation:
Pure substances can be broken down into elements or smaller compounds, so they are treated as pure because they can be broken down by chemical ways.
Mechanical advantage can be calculated as?
Answer:
Next we come to calculating the mechanical advantage of a lever. To do this, you divide the distance from the fulcrum, the point at which the lever pivots, to the applied force by the distance from the fulcrum to the resistance force. Using this picture, this means dividing distance b by distance a
The three main climate zones of Earth are at different latitudes. This directly results from different ____________. Group of answer choices
Answer:
Polar, temperate, and tropical.
Explanation:
What is the key to having a long term, sustainable food supply in the new millennium
a. heavy equipment use
b. hydro pods
c. agriculture research
d. increased use of pesticides
Answer:
the correct answer is B) Hydro Pods
Explanation:
Hydroponic Pods are miniature farms that can fit indoors even in a rented apartment and which enables one to grow their foods indoors.
It is designed to enable one to grow plants using water, and nutrients only. No soil is required. Often, the plant's nutrition comes in already made solutions. This system of farming occupies far less space than traditional farming methods.
Cheers
Bacteria are the only organisms characterized as
Answer:
Explanation:
prokaryotic
Bacteria are unicellular microorganisms characterized as prokaryotic.
What are bacteria?They are an extensive group of prokaryotic microorganisms devoid of a membrane that delimits the cell nucleus.
That is, because they are prokaryotic cells, they lack a nucleus or internal organelles, they can live in any habitat.
Therefore, we can conclude that bacteria are unicellular microorganisms characterized as prokaryote.
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explain the theorem used in solving for the range of possible lengrhs of the third side AB of ABC
What human body system does Zygomycota attack
Answer:
I beleive that it is
The condition may affect the gastrointestinal tract or the skin. In non-trauma cases, it usually begins in the nose and paranasal sinuses and is one of the most rapidly spreading fungal infections in humans. Common symptoms include thrombosis and tissue necrosis.
Hope it helps!✌
Explanation:
Answer:
it's fungus typically inhaled or ingested and could potentially affect any body system
Which feature of the nucleus is not clearly shown by the visual analogy?
please do number four4
or more
Answer:
Explanation:
4.the chromatin is not shown
5. What is another possible analogy that could be compared with the structure and function of a cell?
The structure and function of an airport control tower could be compared to the structure and function of a cell
6.Vacuoles are membrane-enclosed saclike structures that store materials such as water, salts, proteins, and carbohydrates.
7.Storage of materials and support of the cell
8.Contractile vacuoles pump excess water out of the cell, while other types of vacuoles hold materials inside of cells
10.Lysosomes breakdown large molecules and waste without them clutter could accumulate in the cell, which has been linked to serious human diseases
11.centrioles
12.cilia
13.Ribosomes are small particles of RNA and protein found throughout the cytoplasm. They are involved in synthesis of proteins.
14. Endoplasmic reticulum
15.Ribosomes are found on the surface of rough ER. Smooth ER has no ribosomes on its surface.
16.The Golgi apparatus is like a customization shop in a factory. It puts the finishing touches on proteins before they leave the factory.
17.If the cell manufactures proteins that are normally released to travel to other cells. Those cells would not receive the proteins. The loss of these proteins might cause the "receiver" cells to function poorly.
19.True
20.Like
21.True
22.Contain
23.walls
24.wood
25.regulates
27.Vesicles transport newly synthesized proteins to the Golgi apparatus. After the Golgi apparatus modifies the proteins, vesicles transport the modified proteins to the cell membrane, where they are released.
In a phospholipid, the ionic head is _____ and the lipid tail is ______
the cells of most prokaryotic cells have a what?
Answer:
hello Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
Are we invasive species? Why or why not?
Answer:
We're not an invasive species
Explanation:
though we're certainly doing harm to the world around us.
According to cell theory, which of the following are made of cells? Check all that apply.
- flowers
- rocks
- blood
- water
- bacteria
- sugar
- skin
Answer:
flowers
blood
bacteria
skin
According to cell theory flowers, blood, bacteria and skin all are made up of cells.
What is cell theory?The cell theory is a scientific theory that was initially developed in the middle of the nineteenth century, which states that all living organisms are composed of cells, that cells are the fundamental structural/organizational unit of all organisms, and that all cells originate from pre-existing cells.
Knowing that all living things are cells helps us comprehend how they are born, grow, and die. That information helps us understand how new life is produced, why creatures take their forms, how cancer spreads, how diseases can be handled, and more. Cells help us grasp life and death: a living creature is alive, while a dead one is dead.
Therefore, flowers, blood, bacteria and skin all are living things made up of cells.
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Which process produces 4 haploid cells
Dependence and Addiction are the
same thing?
a. True
b. False
Answer:
b
Explanation:
one is a necessity, the other is a struggle
Which of the following is NOT part of the cell theory?
Question 1
All living organisms are composed of one or more cells
All cells are produced from other cells.
All things are composed of at least one cell
Cells are the basic unit of life
Answer:
I think it is, Cells are the basic unit of life.
I hope it helps you....
What is the difference between a eukaryote and a prokaryote in terms of what they have within in them?
Answer:
The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. ... The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles.
Which characteristic makes a cell membrane selectively permeable?
the thickness of the membrane
the chemical nature of the membrane
the rigid nature of the membrane
the smooth outside of the membrane
Answer:A selectively permeable cell membrane is one that allows certain molecules or ions to pass through it with active or passive transport.
Explanation:
describes natural selection?
Which is an organism with an integumentary system?
O A) mouse
OB) amoeba
O C) bacterium
OD) paramecium
Answer:C
Explanation: bacterium
Can someone answer this question?
Two proteins in the same cell perform different functions. This is because 2 points the two proteins are composed of what?
Answer:
It is composed of a single strand of nucleotides
Explanation:
How are the fluke larvae transferred from the snail (invertebrate host) to the vertebrate host?
