Which scientists showed that organisms do not grow spontaneously in beef broth?
Answer:
Louis Pasteur
Explanation:
Gave theory of spontaneous generation that states, life arose from non-living things.
Answer:
Louis Pasteur
Explanation:
Ape-x
Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin's
work after he returned home from his voyage and studying the selective breeding of pigeons prompted him to ask
which question?
Do living things change over time, and if so, how?
Are the Galapagos finches and those on the mainland the same species?
Are pigeons related to the Galapagos finches?
Can selection in nature also lead to a new species over time?
Answer:
D) Can selection in nature also lead to a new species over time?
Explanation:
The question will be "Can selection in nature also lead to a new species over time?". The correct option is D.
Who was Charles Darwin?English naturalist, geologist, and biologist Charles Robert Darwin is well-known for his contributions to evolutionary biology.
Charles Darwin, a naturalist of the 19th century, investigated the theory of natural selection.
Natural selection provides an explanation for how a species' genetic features might evolve through time. This could result in speciation, or the creation of a new, separate species.
New scientific questions are frequently posed as a result of scientific research.
After his journey, Charles Darwin studied the selective breeding of pigeons and made observations that led him to wonder: "Can selection in nature also lead to a new species over time?"
Thus, the correct option is D.
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What would be the most likely effect of a wildfire that burned a large area of a forest?
DESCRIBE WEATHER IN YOUR OWN WORDS AND GIVE EXAMPLES
please help me with this ik its a dumb question but like my teacher wants a good answer and im dumb please help!
Answer:
HOW TO DESCRIBE IT: rainy, wet, humid, dry, arid, frigid, foggy, windy, stormy, breezy, windless, calm, still; a spell of good weather; a two-day spell of sunny weather; a spell of rainy weather; Sky: cloudy, overcast, cloudless, clear, bright, blue, gray (BrE grey), dark; a patch of blue sky.
EXAMPLE: Weather includes sunshine, rain, cloud cover, winds, hail, snow, sleet, freezing rain, flooding, blizzards, ice storms, thunderstorms, steady rains from a cold front or warm front, excessive heat, heat waves, and more. ... They also provide Special Weather Statements and Short and Long Term Forecasts
QuestionMitochondria, ribosomes/ and vacuoles are examples of
Answer:
vacuoles, ribosomes, and mitochondria are all examples of organelles.
because that is what they are all called when they are in the cell.
Describe the chloroplast structure.
Answer:
The chloroplast has an inner and outer membrane with an empty intermediate space in between. Inside the chloroplast are stacks of thylakoids, called grana, as well as stroma, the dense fluid inside of the chloroplast. These thylakoids contain the chlorophyll that is necessary for the plant to go through photosynthesis.
Explanation:
What does a life scientist study?
A. Planets
B. Trees
C. Stars
D. Volcanoes
Answer:trees
Explanation:
Both plant and animal cells have a nucleus.
A. True B false
Help please thank you
Answer:
A. True
Explanation:
Hope this helps!
During photosynthesis, energy is transferred from...
A. sunlight to ATP
B. carbon dioxide to oxygen
C. water to oxygen
D. sunlight to glucose
help
Answer:
D
Explanation:
plants use sunlight, water, and carbon dioxide to make oxygen and glucose
I need to know what the Ghrelin is for school
Answer:
It is a hormone that increases appetite
Enzymes are a special type of protein that speeds up biological reactions. How do they accomplish this task?Immersive Reader
(1 Point)
A. They are able to operate at any pH value.
B. They lower the activation energy of reactions.
C. They form peptide bonds between amino acids.
D. They decrease the number of collisions in the reacting substances.
Answer:B: they lower the activation energy of reactions
Explanation: just took the test
All cells, whether prokaryotic or eukaryotic, will have a cell membrane.
True
False
Answer:
True
Explanation:
Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment
Answer:
True
Explanation:
Because yes.
The hardest coal has the most energy and burns the cleanest. Where do coal miners find the HARDEST coal?
A. on the surface of the earth
B. in the oceans
C. deep beneath the earth’s surface
D. at the bottom of shallow lakes and rivers
Answer:
C
Explanation:
This coal will be more compact and therefore most of the water and CO2 has been expelled due to this. This coal is called Anthracite and burns the cleanest. It is often found in areas with high stress and lots of pressure so mainly far underground. Why do you think the the majority of mines are underground and not open sites? So that they can get to the best coal the most economic and ergonomically way possible
Why do we cook our food and put lime on fish / shrimp to make ceviche
Answer:
The reason is because ceviche (sev-ee-chay) is still very much raw fish or seafood.
The citrus bath the seafood sits in does turn the meat opaque, giving it the appearance of being cooked, and it does kill some of the many wee beasties present in raw foods that can make you sick, notably the toxin vibrio.
In multicellular organisms, cells are organized into tissues, tissues into organs, organs into organ systems, and systems
to organisms. Select ALL of the organs from those listed
A).blood
B).brain
C.)eye
D.)leukocyte
E.)muscle
Among the listed components, the brain and the eye are the organs. Skeletal muscles are also classified as organs.
What are the levels of the organization?In anatomical studies of an individual, the classification of the hierarchy of the structures of the organism is useful for the estimation of the complexity level of the individual.
The chemical level of organization is the first level of organization where atoms are combined for the formation of molecules. Molecules are combined to form macromolecules.
Different types of macromolecules result in the cellular level of organization. The macromolecules that are the components of cells are called biomolecules.
Cells of the same kind are combined and work in the association as a tissue, for example, nerve cells form nerve tissue.
These tissues of similar functions combine to form organs. For example, multiple nerve tissues are combined to form the brain and the spinal cord.
The nerve cells, nerve tissues, spinal cord, and brain are studied together as an organ system called the nervous system. Several organ systems like this are grouped to form an individual.
Therefore, the brain and eye are examples of organs.
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Which element is found in period 3, group 2? *
Answer:
Magnesium
Explanation:
Magnesium
Answer:
sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon.
Explanation:
The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, and argon. The first two, sodium and magnesium, are members of the s-block of the periodic table, while the others are members of the p-block.
Cell theory holds that new cells arise from preexisting cells. Which of the following is most likely to support this idea of cell theory?
A
evidence that most multicellular animals are larger than unicellular animals
B
evidence that most multicellular animals do not reproduce asexually
C
evidence that unicellular animals do not have organs
D
evidence that cells reproduce sexually and asexually
Answer:
B that most multicellular animals don't reproduce asexually
What is the correct term for a living organism
Answer:
living thing
Explanation: the corrcet term for a living orgainsm is a living thing.
Explanation:
you got Animal or Creature or Being
how is average velocity calculated
Answer: (v) of an object is equal to its final velocity (v) plus initial velocity (u), divided by two. Where: ¯v = average velocity. v = final velocity.
Explanation:
The average velocity of an object is its total displacement divided by the total time taken. In other words, it is the rate at which an object changes its position from one place to another.
All of the following are ways in which genetic engineering plays a role in medicine except
A.) identifying mutations.
B.) producing insulin and growth hormone.
C.) tracking how a condition is passed between generations.
D.) examining paternity.
Answer:
The Answer is D) examining paternity
Explanation:
Paternity is the state of being someone's father. Being someone's father plays no role in medicine
Answer:
yes, the correct answer is D: examining paternity
Explanation:
I got it right in edg 2020
hope this is of help :)
What is parasitic mode of nutrition? Explain with examples.
Answer:
Explanation:
ANSWER 1) Parasitic nutrition is a mode of heterotrophic nutrition where a parasitic organism lives on the body surface or inside the body of another type of organism (a host)
Examples of parasitic mode of nutrition are mosquito, ticks, lice, bedbugs , tapeworm
because lives on the body surface or inside the body of other organism called host.
ANSWER 2 ) Organisms that live in or on other organisms and acquire food at the expense of its host are called parasites. Most parasites are harmful to the hosts’ health; sometimes, they even kill the host. Both animals and plants may serve as a host. Unlike commensalism, the parasite causes some harm to its host. A few examples of parasites are louse on a human head, Cuscuta plant and tapeworms.
Cymothoa exigua is an unusual parasite. It is also known as the tongue-eating louse and is aptly named so as it is found in the mouth of the marine fish Lithognathus. It essentially severs the fish’s tongue, cutting off the blood supply and causing the tongue to fall off. The louse then attaches itself to the remains of the tongue and essentially acts as the fish’s new tongue.
u can choose which one to write :)
Explanation:
Parasitic nutrition is a mode of heterotrophic nutrition where an organism lives on the body surface or inside the body of another type of organism .
Match the following organelles to their function or structure. Each organelle is only used once!!!
Cell membrane
Controls the passage of materials into and out of a cell
Flagella
Acts as a whipping propeller, moving a cell through its environment
Lysosomes
Digest foreign substances and worn out cell parts
Mitochondria
Ribosomes
Makes proteins
Cilia
Nucleus
Protects DNA and is considered the “brain” of the cell
Golgi Apparatus
Modifies and packages proteins
DRAG & DROP THE ANSWER
Produce energy (ATP)
Structures shaped like small oars that beat in unison to move the cell or the liquid around it
Answer:
Cell membrane - Controls the passage of materials into and out of a cell
Flagella - Acts as a whipping propeller, moving a cell through its environment
Lysosomes - Digest foreign substances and worn out cell parts
Mitochondria - Produce energy (ATP)
Ribosomes - Makes proteins
Cilia - Structures shaped like small oars that beat in unison to move the cell or the liquid around it
Nucleus - Protects DNA and is considered the “brain” of the cell
Golgi Apparatus - Modifies and packages proteins
Explanation:
The cell membrane separates the inside of the cell from the external environment, and regulates substances that enter and leave the cell.
The nucleus contains the genetic material of the cell, and therefore controls all cellular activities. It is also the site of transcription of mRNAs. mRNAs are translated at ribosomes.
The ribosomes are like factories that synthesize proteins through the process of translation.
When proteins have been produced, they are modified, packaged, and transported to their specific sites by the Golgi apparatus.
Mitochondria are energy-producing organelles - the site of cellular respiration.
Lysosomes are membrane-bound sacsin which waste products are digested
Some cells have cilia, which are hair like-structures that beat in unison to aid in locomotion. Another locomotory organelle is the flagella, which is a whip-like structure that helps some single-celled organelles to move.
HELP PLEASE! WILL GIVE BRAINLY! Describe a strong, bond in which electrons are unevenly shared between two atoms due to a different in electronegativity. A. Adhesion b. Hydrogen bond c. Polar covalent bond. Ionic bond
Answer: Polar covalent bond
Explanation:
In ionic compounds, electrons are transferred between atoms of different elements to form ions. But this is not the only way that compounds can be formed. Atoms can also make chemical bonds by sharing electrons equally between each other. Such bonds are called covalent bonds
Which task would a colorectal surgeon perform?
1. analyzing patients’ diets for food sensitivities
2. prescribing drugs to treat ulcers
3. correcting structural problems of the jaw
4. removing tumors in the large intestine
Answer:
4
Explanation:
What is the basic building block of all living things that cannot be found in anything that is nonliving?
Answer:
the cell is the answer
Explanation:
the smallest unit component that all living beings must have is the cell. In fact some living things can be just one cell. Every living being comes from cells, is made up of one or more cells, and cannot be considered a living organism without at least one
Answer:
Non-living, it's atoms, but the smallest unit component that all living beings that they must have is the cell. It is a proven fact some living things can be just one cell. Every living being comes from cells, is made up of one or more cells, and cannot be considered a living organism without at least one.
Please give me brainliest. :) thanks
Which of the following is NOT a feature of both prokaryote and eukaryote
cells? *
cytoplasm
O plasma membrane
nuclear membrane
ribosome
The feature that is not a feature of prokaryotes and eukaryotic cell both is nuclear membrane. The correct option is C.
What is a eukaryotic cell?Eukaryotes are organisms with cells that contain a nucleus and other organelles that are surrounded by a plasma membrane.
Organelles are internal structures that perform a number of functions, including energy production and protein synthesis. The essential structures of a eukaryote cell.
Organelles in eukaryotes perform specific functions such as energy production, photosynthesis, and membrane construction.
A prokaryotic cell is one that lacks a true nucleus and membrane-bound organelles.
Bacteria and Archaea organisms use prokaryotic cells, whereas all other forms of life use eukaryotic cells.
The main difference between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus, whereas prokaryotic cells do not.
Thus, the correct option is C.
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What is the most efficient procedure that scientists can use to obtain more recombinant DNA for a particular trait?
isolate more recombinant DNA
use electrophoresis to separate more recombinant DNA
clone the recombinant DNA in a biological vector
use restriction enzymes to cut the recombinant DNA into fragments
Answer:
The CORRECT answer is C.) clone the recombinant DNA in a biological vector.
Explanation:
I just took the quiz on Edg!
**It wouldn't hurt to mark brainliest! <33
The most efficient procedure that scientists can use to obtain more recombinant DNA for a particular trait is to clone the recombinant DNA in a biological vector.
What are traits?Traits can be defined as any characteristics which is controlled by genes.
Some examples of traits or characters are:
Body shapeColour patternHair pattern etcSo therefore, the most efficient procedure that scientists can use to obtain more recombinant DNA for a particular trait is to clone the recombinant DNA in a biological vector.
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Why do we rely on lactic acid fermentation only as a temporary energy source?
Answer:
This usually happens when there is not enough oxygen in the body, so lactic acid fermentation provides a way to get ATP without it. The process relies on stored energy sources such as sugars or starches, which it can break down to make simpler molecules and energy. ... Lactic acidosis usually occurs because of exercise.
The process relies on stored energy sources such as sugars or starches, which it can break down to make simpler molecules and energy. Lactic acidosis usually occurs because of exercise.
What is lactic acidosis?Lactic acidosis refers to lactic acid build up in the bloodstream. Lactic acid is produced when oxygen levels become low in cells within the areas of the body where metabolism takes place.
The symptoms of lactic acidosis include abdominal or stomach discomfort, decreased appetite, diarrhea, fast, shallow breathing, a general feeling of discomfort, muscle pain or cramping.
Lactic acidosis occurs when lactic acid production exceeds lactic acid clearance. The increase in lactate production is usually caused by impaired tissue oxygenation, either from decreased oxygen delivery or a defect in mitochondrial oxygen utilization.
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What is a rule for making a neutral atom which has no charge?
The rule for making a neutral atom that has no charge is - Electron (E) = Proton (Protons).
Neutral atoms are atoms that have no charge or zero charges. It is known that an atom has three sub-atomic particles; Proton, Neutron, and electrons. Protons have a positive charge, neutrons have zero or no charges and electrons have negative charges.
There are three conditions possible:
The neutral atom that has no charge - The number of electrons and protons must be the same.E = P
A positive ion that has a positive charge - The number of protons has to be more than the number of electrons.E < P
A negative ion that has a negative charge - The number of electrons has to be more than the number of protons.E > P
Thus, the correct answer is - Electron (E) = Proton (Protons).
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1. What is the name of the random
movement of molecules?
Active transport
Diffusion
Osmosis