How do scientists study life?

Answers

Answer 1

Answer:

Scientists usually conduct research in laboratories using a wide variety of other equipment. Some conduct experiments involving animals or plants.Biological scientists can now manipulate the genetic material of animals and plants, attempting to make organisms more productive or resistant to disease.

Answer 2

Explanation:

Scientists usually conduct research in laboratories using a wide variety of others equipment. Some conduct experiments involving animals and plants. Biological scientists can now manipulate the genetic material of animals and plants , attempting to make organisms more productive or resistant to diseases. Biological scientists study living organisms and their relationship to the environment. scientists usually conduct research in laboratories using a wide variety of other requirements.


Related Questions

What happens to a population when it's larger than the available resources can accommodate?


1. The organisms not well suited for that environment won't survive.


2. The organisms who need fewer nutrients will support the organisms who need more.


3. The environment will produce more nutrients and resources to support the population.


4. All of the organisms in that population will die.

Answers

Answer:

The organisms not well suited for that environment won't survive

Explanation:

Good Luck!

Answer:

The organisms not well suited for that environment won't survive.

Explanation:

its the right answer  for HS

2. Seema suffered a severe muscle tear while playing. Which food nutrient would help her recover faster

Answers

Answer:

Protein.

Hope it helps you.....

How is WHAM related to Nucleic Acids?

Answers

Answer:

Nucleic acid is an important class of macromolecules found in all cells and viruses. ... Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.

Explanation:

URGENTTT!!
how insulin taken by breathing it in enters the blood?

Answers

Answer:

well when you breathe in the insulin it travels to your lung and is absorbed by the alveoli where it is dissolved and is transffered to the capillaries

Explanation:

Which compound is a reactant of both cellular respiration and dehydration synthesis? (1 point)
O glucose
O oxygen
O water
O ATP

Answers

Answer:

glucose

Explanation:

I had a test with this, and it was glucose.

Glucose is a reactant of both cellular respiration and dehydration synthesis

WHAT IS CELLULAR RESPIRATION?

Cellular respiration is the process by which living organisms obtain energy from organic sources.

Cellular respiration combines glucose and oxygen as reactants to form carbon dioxide (CO2), water (H2O), and energy.

WHAT IS DEHYDRATION SYNTHESIS?

Dehydration synthesis is a reaction whereby two smaller molecules come together to form a larger molecule with the loss of water.

An example of dehydration synthesis reaction is the formation of starch from the reaction of glucose molecules with the loss of water.

Therefore, glucose is a reactant of both cellular respiration and dehydration synthesis.

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To make a guess based on what you know or think

Answers

Explanation:

An inference is an educated guess. We learn about some things by experiencing them first-hand, but we gain other knowledge by inference — the process of inferring things based on what is already known.

Help me plz
What is an everyday problem you could use the scientific method to solve? Include what steps of the method would look like for this problem.

Answers

Answer:

observation : a toaster doesn't work

question : is something wrong with the electrical outlet

hypothesis : something is wrong with the outlet my coffee maker also won't work and plug into it

experiment : I plug my coffee maker into the outlet

result : a coffee maker works

2nd result : my toaster is broken

As temperature rises from 25 degrees to 60 degrees, the material heat and its kinetic energy as the material goes through vaporization to become a gas.

1. absorbs, increases

2. releases, does not change

3. multiplies its, is divided

4. remains the same, decreases

Answers

Answer:

1

Explanation:

the material absords heat ( so the temperature increase or the heat can be use to increase kinetic energy)

increase its kinetic energy

In what organelle do the Kreb's cycle and the electron transport chain take place?
(1 point)
0. chloroplast
O mitochondria
O cytoplasm
o nucleus

Answers

Answer:

mitochondria

Explanation:

-The aerobic phases of cellular respiration in eukaryotes occur within organelles called mitochondria. These aerobic phases are the Krebs Cycle and the electron transport chain.

The Kreb's cycle and the electron transport chain take place in the MITOCHONDRIA.

Cellular respiration is an aerobic process, i.e., a metabolic process that requires oxygen (O2) by which energy from foods is used to synthesize ATP, carbon dioxide (CO2), and water (H2O).

The three stages of cellular respiration are glycolysis, Kreb's cycle (also known as the citric acid cycle), and the electron transport chain.

Glycolysis is an anaerobic pathway (i.e., does not require O2) and occurs in the cytoplasm.

The Kreb's cycle and the electron transport chain (ETC) are both aerobic processes that occur in the intern membrane of the mitochondria.

In conclusion, Kreb's cycle and the electron transport chain occur in the mitochondria.

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WHAT IS BREEDING DEFINATION

Answers

Answer:

Breeding is sexual reproduction that produces offspring, usually animals or plants.

Explanation:

make me as brainleast.

A) Group 2 elements have two valence electrons. Which kind of bond will they most likely form, and why? (1 point)
A covalent bond is likely because they want to share those two valence electrons in order to become stable.
An ionic bond is likely because they will want to give away two valence electrons in order to become stable.
A metallic bond is likely because they are metals and can bond with other metals.
An ionic bond is likely because they are metals and will want to bond with nonmetals

Answers

Answer:

B. An ionic bond is likely because they will want to give away two valence electrons in order to become stable.

Explanation:

Answer:

An ionic bond is likely because they will want to give away two valence electrons in order to become stable.

Explanation:

Choose something about that a scientist may want to learn about a newly discovered species of dinosaurs

Answers

Answer:

A scientist might want to know their DNA

A DNA segment is changed from AATTAG to AAATAG. What type of mutation is this and what is its effect on the genetic variation of a population?

A.
The mutation is a substitution which causes a decrease in the genetic variation of a population.

B.
The mutation is an insertion which causes a decrease in the genetic variation of a population.

C.
The mutation is an insertion which causes an increase in the genetic variation of a population.

D.
The mutation is a substitution which causes an increase in genetic variation of a population.

Answers

The mutation from AATTAG to AAATAG is a substitution which causes an increase in genetic variation of a population.

MUTATION:

Mutation refers to any change in the nucleotide sequence of DNA molecule. Mutation can be of different types depending on how it occurs.

A substitution mutation is that in which one or more nucleotide base is replaced by another in the sequence.

In this question, an original sequence of DNA is given as AATTAG. It was mutated to AAATAG via the replacement of 'T' with 'A'. This means that it is a substitution mutation.

However, this mutation will cause an increase in the genetic variation i.e. difference in a population.

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During transformation,
a. a prokaryote is changed into a eukaryote.
b. a cell takes in DNA from outside the cell.
c. foreign RNA is inserted into a plasmid.
d. a clone is produced.

Answers

Answer:

b. a cell takes in DNA from outside the cell.

Proteins are one of the four main
types of
biomolecules
O living
O complex

Answers

I would have to go with O complex.


4. Which of the following is an important characteristic of a scientific theory?
a, proven by more than one scientist
b. unchanged by new evidence
c. accepted by the public
d. supported by much evidence

Answers

d) supported by much evidence

The optic nerves pass through the ----- of the ------- bone.

Answers

Answer:

sphenoid bone

Explanation:

Extracranial. The optic nerve is formed by the convergence of axons from the retinal ganglion cells. These cells in turn receive impulses from the photoreceptors of the eye (the rods and cones). After its formation, the nerve leaves the bony orbit via the optic canal, a passageway through the sphenoid bone.

which prefix is correctly defined
A. mer- one
B. poly - many
C. mono - large

Answers

Answer:

The answer is letter B

Explanation:

Learned about this in class so i know that mono means one and poly means many

Answer:

B. poly - many

Explanation:

Poly means more than one in examples:

polygamy - the practice or custom of having more than one wife or husband at the same time.

polyamine -  an organic compound having more than two amino groups

polyaxon - a nerve having several axons

I hope this is helpful :)

A theory Group of answer choices is always true. may be revised or replaced. is a problem to be solved.

Answers

Answer:

may be revised or replaced

Explanation:

theories are an explanation that is based on current knowledge and may be changed after new discoveries

Hello i need help with this it’s just short (The subject is science and Im sorry if i got the subject wrong from the above) Thank you in advance <3

1. Forest ecosystems provide all of the following functions EXCEPT;

a. producing oxygen
b. controlling soil erosion
c. removing carbon from the atmosphere
d. lowering the biodiversity of the plant

2. Extinction is a natural process that occurs when the last member of a species does. Which of the following correctly arranges the mass extinction events from earliest to latest?

a. Cretaceous-Tertiary, Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic

b. Late Devonian, Cretaceous-Tertiary, Ordovician-Silurian, Permian-Triassic, Triassic-Jurassic

c. Ordovician-Silurian, Late Devonian, Permian-Triassic, Triassic-Jurassic, Cretaceous-Tertiary

d. Ordovician-Silurian, Permian-Triassic, Triassic-Jurassic, Late Devonian, Cretaceous-Tertiary

3. Which contributes the most biodiversity loss?

a. habitat destruction b. pollution
c. invasive species d. population growth

4. Extinction can be caused by a Natural Phenomenon such as storm, flash floods, or Anthropogenic (Human made). Which of the following is believed to be the major and most impactful anthropogenic cause of extinction?

a. habitat destruction b. overpopulation
c. overexploitation d. pollution

5. Which of the following is not a benefit that tress can provide?

a. They can trap sediments and runoffs that help improve water quality.
b. They prevent the excessive warming of the planet by sequestering Carbon dioxide.
c. They serve as filters that rid the air of harmful pollutants and toxic gases.
d. None of the above.

Answers

Answer:

1. Lowering Biodiversity of the plant

2. I think it is B

3. Habitat Destruction

5. None of the Above

Explanation:

Answer:

1. d

2.c

3.a

4.a

5.d

Explanation:

1. Forests ecosystem have high biodiversity

3.Habitat loss from exploitation of resources, agricultural conversion, and urbanization is the largest factor contributing to the loss of biodiversity. The consequent fragmentation of habitat results in small isolated patches of land that cannot maintain populations of species into the future.

4.It is currently the biggest cause of current extinctions. Deforestation has killed off more species than we can count.

5. Im not sure.

   It may be ans c. As Trees absorb  toxic chemicals through their stomata, or 'pores', effectively filtering chemicals from the air.

Your hand pop up after touching a hot stovetop. Which two organs systems are most responsible for your reaction?
A. nervous and respiratory
B. immune and muscular
C. nervous and muscular
D. circulatory and muscular

Answers

Answer:

nervous and muscular

nervous and muscular

Em algumas células encontramos organelas denominadas cloroplastos, que são responsáveis pelo processo de fotossíntese. Essas organelas são encontradas em:

A) células bacterianas
B) células vegetais
C) células procariotas
D) células animais

Answers

Answer:B celulas vegetais

Explanation:

Os cloroplastos são organelas que ocorrem apenas nas células de vegetais e algas e são ricas em clorofila, um pigmento de coloração verde. Elas estão relacionadas com o processo de fotossíntese e, nas plantas, são encontradas principalmente nas folhas.

describe the human population growth curve over the past 10,000 years, and identify the type of population growth curve it represents


p.s I will give brainless

Answers

Explanation:

Global human population growth is around 75 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7 billion in 2012.

Although the direst consequences of human population growth have not yet been realized, exponential growth cannot continue indefinitely.

In the late 1970s, China’s “one-child” policy tried to control population growth, but restrictions were relaxed in the early 2000s.


Define taxonomic hierarchy....​

Answers

taxonomic rank is the relative level of a group of organism

Answer:

In biological classification, taxonomic rank is the relative level of a group of organisms in a taxonomic hierarchy. Examples of taxonomic ranks are species, genus, family, order, class, phylum, kingdom, domain, etc

Explanation:

What is taxonomic hierarchy?

“Taxonomic hierarchy is the process of arranging various organisms into successive levels of the biological classification either in a decreasing or an increasing order from kingdom to species and vice versa.” Each of this level of the hierarchy is called the taxonomic category or rank.

6. The plant tissue that carries sugar from the
leaves to the roots is the

Answers

Answer:

phloem

Explanation:

I am pretty sure that this is right and the xylem carries the water. I hope this helps!! I am sorry if it is worked wrong.

___________ neurons carry signals from sensory nerves to the Central Nervous System.

Answers

Afferent neurons.

What is it : Afferent neurons are sensory nerves
These are sensory neurons carrying nerve impulses from sensory stimuli toward the central nervous system and brain. Afferent neurons carry signals to the brain and spinal cord as sensory data.

Which statement does not apply to the human egg

Cannot move on its own

produced at one at a time

contains enzymes to break down cell walls

contain’s food stores

Answers

Answer:

produced at one at a time.

Explanation:

human egg are not produced only at one time.

what statements are true about the biological macromolecules?
A. All biomolecules could be called carbon - based molecules
B. The monomers of DNA are nucleotides
C. Ready cellular energy comes in the form of lipids
D. Carbohydrates contain nitrogen and therefore differ from other macromolecules
E. Cell membranes are made, in part, from phospholipids
F. The monomers of starch are monosaccharides

Answers

Answers:

A. All biomolecules could be called carbon based molecules

B. The monomers of DNA are nucleotides

E. Cells membranes are made, in part, from phospholipids

F. The monomers if starch are monosaccharides

All biological macromolecules are carbon-based molecules, the monomers of DNA are nucleotides, cell membranes, in part, are made from phospholipids and the monomers of starch are monosaccharides correct statements. Therefore, the correct options are A, B, E and F.

What are biological macromolecules?

Biological macromolecules are large molecules constituted of organic molecules. These are necessary for the survival of an organism. The four major classes of macromolecules in the study are Carbohydrates, Lipids, Proteins and Nucleic acids.

They are all built from carbon-based or organic molecules. These molecules form important components of a living cell and constitute most of its dry weight. These macromolecules are mostly obtained from the food we eat which is broken down into nutrients which are these organic molecules.

They are also called biomolecules. Carbohydrates are energy sources made of sugars. They are broken down into glucose which is required for cellular respiration to produce energy.

Proteins perform various functions including structural, regulatory, protective etc. Lipids are non-polar compounds that store energy for the long term in the form of fats in our bodies. Nucleic acids are hereditary biomolecules that pass on traits from one generation to another.

Therefore, the correct options are A, B, E and F.

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A steel bar has a mass of 80 kilograms and a density of 8,000 kilograms per cubic meter.
Calculate its volume.

Write your answer to the hundredths place.

Answers

Volume = Mass/density = 80/8000= 0.01 M³

answer please it's urgent​

Answers

Answer:

b

b

c

b

Explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

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