The definition of life science

Answers

Answer 1

Answer:

the sciences concerned with the study of living organisms, including biology, botany, zoology, microbiology, physiology, biochemistry, and related subjects.


Related Questions

Can somebody help me match them

Answers

deforestation is the cutting down of trees, that’s one of them.
Urbanization = the 2nd option
Deforestation = the 3rd option
Desertification = 1st option

How many essential amino acids must be obtained from food?
a)8
b)20
c)12
d)26

Answers

Answer:

I believe the answer is c)12

Answer:

8 or 9

Explanation:

Which refers to the ends of a magnet where the forces are stongest?
a. attracting Forces
b. opposing forces
c. magnetic fields
d. magnetic poles​

Answers

Answer:

d. magnetic poles​

Explanation:

The correct answer is option (d) magnetic poles.

What are magnetic poles?

A magnetic pole is a point at end of a magnetic field where the magnetic force is concentrated and strongest.

Why other options are incorrect?

a. Attracting Forces : The force by which one object attracts another are attractive forces

Hence a. is incorrect.

b. Opposing forces : There is nothing termed as opposing forces in the types of forces so this option is incorrect.

c. Magnetic fields : The area around a magnet, magnetic object, or an electric charge in which magnetic force is exerted.

So , this option is also incorrect

Hence Option D is correct

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Which Statement best describes Earth's oceans

Answers

Answer:

salty

Explanation:

Answer:

(I think you chose the wrong photo) but its Ocean covers most of the planet's surface and contain nearly all its water.

Explanation:

can some one label this ill mark branieliest

Answers

all i know is that the mitochondria is the power house of the cell

Paleomagnetism is..

A. The equipment tied to boats to measure their depths

B. The rock that solidifies from mid ocean ridges

C. The evidence that fossils across continents matched

D. The study of the magnetic qualities of ancient rocks

Answers

c i’ve had same problem

Answer:

C. The evidence that fossils across continents matched

Explanation:

Which surface erosion event does the most short-term damage?


Answers

Answer:

splash erosion.

Explanation:

Large areas on the leaves of some plants lack chlorophyll and are therefore not green in color. How does this most likely affect photosynthesis? Not enough sunlight is captured in these areas of the leaves. Carbon dioxide cannot enter these areas of the leaves. Too much glucose builds up in these areas of the leaves. Oxygen cannot be released in these areas of the leaves.

Answers

(Not enough sunlight is captured in these areas of the leaves)

The plants are of green color due to the pigment chlorophyll. the chlorophyll plays a crucial role in photosynthesis, the process of preparing food.

The correct answer is:

Option A. Not enough sunlight is captured in these areas of the leaves.

The functioning of chlorophyll can be explained as:

Chlorophyll is the green color pigment present in the chloroplast of the leaves. The pigment is involved in the capturing of sunlight and imparting green colors to the plants.

The plants lacking chlorophyll will not be able to perform photosynthesis. The process of preparing food in the presence of sunlight, chlorophyll, and carbon dioxide. The products of photosynthesis are oxygen and sugar molecules.

Thus, the correct answer is Option A.

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you are testing a new blood glucose monitor. every sample that you take gets a reading of 80. which of the following terms best describes the monitors readings?

Answers

Answer:

the monitor is reliable but there is not enough info. to comment on validity

Explanation:

The monitor is consistent - which is reliability, but you can't be sure the results it is returning are correct based on the question, so validity can't be determined.

Fill in the word that completes each sentence.
Food contains a sugar called
which is broken down in a process called cellular
This process uses
to break down food molecules and provide energy for cells.
Intro
Done

Answers

Answer:

The correct answer is - glucose, respiration and oxygen in order.

Explanation:

The food we eat contains various nutrients mainly, carbohydrates, protein, and fat. The carbohydrate that is we eat has glucose as the primary product and also the substrate in the process known as cellular respiration.

Cellular respiration is a process in which glucose molecules are broken down in order to provide energy in the form of ATP with the help of oxygen. It is called aerobic respiration as it required oxygen for the complete oxidation of the substrate.

Answer:

Glucose respiration oxygen

Explanation:

Which of the following plant structures allows plants to take in the carbon used in photosynthesis?
Which of the following plant structures allows plants to take in the carbon used in photosynthesis?
roots
vascular bundles or veins
stomata
cuticle
chloroplasts

Answers

Answer:

Stomata

Explanation:

Photosynthesis is a unique phenomenon in certain organisms like plants. It is the process whereby they produce their food, in form of an organic compound called GLUCOSE. To synthesize this sugar, plants need a carbon source.

Plants utilize carbon dioxide (CO2), which is an inorganic carbon compound as CARBON SOURCE to synthesize glucose molecule in the process of photosynthesis. This carbon dioxide (carbon) is taken in by the plants via their STOMATA, which is a pore or opening present on their leaves.

The STOMATA opens and closes in order for gaseous exchange to occur i.e. take in CO2 (carbon dioxide), expel O2 (oxygen).

Answer:

stomata

Explanation:

edge for intro to Ag

When heat leaves your body, how far could it travel?PLEASE HURRY

Answers

millisecond - answer

Which of the following relationships is incorrect

Answers

Cholorplasts- site of lipid synthesis

Chloroplast is not a site of lipid synthesis, it is the site of performing photosynthesis Therefore, option A is correct.

What are chloroplasts and their functions?

An organelle found in the cells of plants and some algae called a chloroplast is where photosynthesis, the process by which solar energy is transformed into chemical energy for growth, takes place.

All green tissues in plants and algae contain chloroplasts in their cells. In photosynthetic tissues that don't appear green, such as the brown blades of gigantic kelp or the red leaves of some plants, chloroplasts are also present.

Thus, the cell wall provides support and protection to the cell, rough ER is the site of protein synthesis, the nucleus holds genetic material, and the chloroplast is the site of photosynthesis. Therefore, option A is correct.

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A new fossil called Darwinius was discovered in Germany. It lived around 47 mya. It had a small brain, short snout, and postorbital bar. Its diet probably included a lot of fruit and leaves. It did not have a dental comb. It had nails instead of claws and was probably an arboreal quadruped. Researchers disagree about whether the fossil is more similar to living haplorhines (the group that includes tarsiers, Old and New World monkeys, apes, hominins) or more similar to strepsirrhines (lemurs, lorises)

Required:
a. Describe two features that the fossil shares in common with living haplorhines.
b. Describe two features that the fossil shares in common with living strepsirrhines.

Answers

Explanations:

Darwinius is also known as Ida. some scientists have grouped it to be a member of the adapiforms. it's remains were unearthed in Germany. it is regarded as a female because it's skeleton lacks baculum.

Instead of claws darwinius have nails. they could be classified as transitional fossils due to its links with living strepsirrhines and also living haplorhines

similarities with haplorhines:

1. they share similar body structure and tail, also their nails are similar

2. there feeding is almost the same in terms of diet they are carnivores.

similarities with strepsirrhines:

1. they are both mammals

2. they have close body structure and also almost same tail

please help!! what’s 11 and 14?

Answers

not sure but all the other ones are right

Although a small amount of ATP has been formed in the Krebs cycle, it is the _______________ molecules that represent the most energy for the cell.

Question 9 options:

NADH


FADH2


ATP


Both A and B

Answers

NADH can produce more energy than FADH2, where NADH’s theoretical ATP it can produce is 3, whereas FADH2’s theoretical ATP is only 2

whats 200 to the power of ten

Answers

Answer:

1.024e+23

Explanation:

5. What happens to the force between the two spheres of the same
mass when the distance the mass Spheres is halved?

Answers

Answer:

The force of gravity on each object increases with the square of the inverse distance as they fall together, and hence so does the acceleration. For example, if the distance is halved, the force and acceleration are quadrupled.

Explanation:

Ok here is the next one. The answer selected was just accidentally tapped so ignore it lol.

Answers

Answer:

hm, i believe it's d...but i'm not 100% sure lol

Explanation:

hope it helps!

What type of organic compounds store the most energy per molecule?
lipids
O carbohydrates
O proteins
O nucleic acids
O Lipid Acids

Answers

Lipid acids is the correct answer or (fats)

Answer:Lipid Acids

Explanation:

Which of the following kinds of questions cannot be answered within the limits of science?​

Answers

Where are the options?

3. Which of the following statements explains the importance of carbon in cells? (Choose all that apply

Answers

carbon is a waste products for a cell.

i just took the test

The statement that explains the importance of carbon in our cells is that carbon affects the function of the cell. So the correct option is A.

What is the importance of carbon?

The most common chemical element present on our Earth is carbon. It has the symbol C and an atomic number of 6. The carbon atom is a member of the fourteenth group present on the periodic table.

The word carbon is derived from the Latin word 'carbo', which means coal. Carbon is also the 15th most abundant element that is present in the crust of the Earth. On the earth, carbon is the fourth most abundant element ranked after hydrogen, helium, and oxygen.

Carbon atoms, when bonded together in different ways,  are called as allotropes of carbon. Diamond, graphite, and amorphous carbon are the three allotropes of carbon.

They have different properties. Graphite is one of the softest known substances while diamond is the hardest known substance.

Therefore the correct option is A.

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Which of the following parts of a plant is (are) not digestible by humans?​

Answers

Explanation:

Your body is unable to digest cellulose and, as a result, it passes through your digestive tract unchanged and is eliminated in bowel movements. Bran, legumes, nuts, root vegetables and apples are particularly high in cellulose and hemi-cellulose

why are humans not an invasive species

Answers

Answer:

Originally Answered: Are humans considered an invasive species? No, because the term is generally applied only to species that were introduced to an ecosystem and cause harm. Humans were not introduced to any ecosystem. Instead, humans underwent what is called a 'natural range expansion.

Explanation:

Hope that helped if it did please give me brainiest Thanks! <333 :3

Hello!

They are not an invasive species because the term is generally applied only to species that were introduced to an ecosystem and cause harm. Humans were not introduced to any ecosystem. Instead, humans underwent what is called a 'natural range expansion.

Filled-in symbols in the pedigree that follows designate individuals suffering from deafness.a. (2 points) Study the pedigree and explain how deafness is being inherited.b. (2 points) What is the genotype of the individuals in generation V

Answers

Answer:

According to the pedigree, It is clear that the F1 generation is not affected but their offspring are affected in F2, which explains that the deafness presented with the pedigree is recessive. It should be an Autosomal recessive inheritance as it is found in both male and female offsprings.

As it is found that the parents are affected in 5th gen and 6th generation but their offspring are not affected which means there must be more than one genes controlled this disorder

B. In 5th generations mentioned above offspring is unaffected but parents are affected, to find the genotype of the individual let assume there are two genes responsible for it A and B, and mutation in any one of them can result in deafness.

So in IV generation Individuals 5 and 6 have genotypeAAbb and aaBB; both are deaf.

gametes:- Ab & aB.

So, the genotype of all offsprings will be AaBb means all are normal.

Deafness is an autosomal recessive disorder as the first generation is unaffected and the genotype of the fifth generation is AaBb.

What are pedigree and genotype?

Pedigree is a chart representation of the phenotype of specific genes of the organism and its inheritance from the ancestral family. The pedigree can be used for the analysis of the heritable disease and illness in the family root.

The deafness illness in the pedigree is recessive as the first generation of the pedigree remains unaffected but the later generation is affected and is diseased.

From the chart, deafness can be said to be an autosomal recessive disorder as some generations are unaffected and in some the disease is present. More than one gene is controlling the disease as the fifth and sixth generations are affected but not their offspring.

The parent of the fifth generation are affected but their progenies are normal to know the genotype let's assume the genes A and B to be responsible for the disease and the mutation in any one of the alleles will result in deafness.

Hence, the genotype of the parents 5 and 6 in the fourth generation will be AAbb and aaBB as both of them diseased or deaf, the offsprings produced from their cross will be AaBb that is all the offspring of the fifth generation will be normal and unaffected.

Therefore, the genotype of the fifth generation in the pedigree is AaBb.

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Think about death rates and birth rates in a population. How will
the two compare in a shrinking population?
SELECT AN ANSWER
The birth rate will be larger.
Both will be equal to one another.
Neither has an affect on the population.
The death rate will be larger.

Answers

Answer:

it will compare that neither has an affect on the population and it will also compare that both will be equal to one another.Hope this helps let me know if its wrong or not have a good day.

Explanation:

It will compare that neither has an affect on the population and it will also compare that both will be equal to one another.

What is population?

The term "population" refers to all citizens who are either permanently residing in a country or who are just passing through. This indicator reveals how many people typically reside in a certain area.

Growth rates are the population changes that occur each year as a result of births, deaths, and net migration.

The total population also includes national military forces deployed overseas, merchant mariners at sea, diplomatic staff based abroad, civilian foreign nationals residing in the nation, and internally displaced people residing in the nation. Demographic tools like population predictions are frequently used.

Therefore, It will compare that neither has an affect on the population and it will also compare that both will be equal to one another.

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A series of two-point crosses, involving 7 genes (a-g), were carried out, and the following recombination frequencies were obtained. Place the seven genes into linkage groups (where a linkage group is any group of genes that are genetically linked to each other). Within each linkage group, determine the order of genes and the distances between them.
Genes % recombination Genes % recombination
a-b 50 c-d 50
a-c 50 c-e 26
a-d 12 c-f 50
a-e 50 c-g 50
a-f 50 d-e 50
a-g 4 d-f 50
b-c 10 d-g 8
b-d 50 e-f 50
b-e 18 e-g 50
b-f 50 f-g 50
b-g 50

Answers

Answer:

Explanation:

Genes with recombination frequencies(RF) of 50 assort independently and are not genetically links together but gene that have less than 50 RF are genetically linked.

The Linked genes included

a-d 12 c-e 26

a-g 4 d-g 8

b-c 10

b-e 18

Starting the order from the most tightly linked to the least

a-g 4, genetic distance is 4cM

d-g 8 genetic distance is 8cM

b-c 10 genetic distance is 10cM

a-d 12 genetic distance is 12cM

b-e 18 genetic distance is 18cM

c-e 26 genetic distance is 26cM

Are hexane and cyclohexane isomers? Why or why not?

Answers

Answer:

No, they are not isomers

Explanation:

"The molecular formula of cyclohexane is C6H12 while of hexane, it is C6H14. The isomers are those molecules which have same molecular formula. Hence on this bases, the above two are not isomers"

which of these is a pure substance that cannot be broken down by a chemical reaction?

Answers

Answer: Element

Explanation: An element is a pure substance that cannot be separated into simpler substances by chemical or physical means.

Each element has unique physical and chemical properties.

Plz mark brainliest:)

How is energy stored in the ATP molecule?
O in the chemical bonds holding the nitrogen base together
O in the chemical bond holding the sugar to the nitrogen base
in the chemical bonds holding the sugar molecule together
O In the chemical bonds holding the phosphate groups together

Answers

The answer is b in the chemical bonds holding the sugar to the nitrogen base
Terminal phosphate groups connect to the molecule
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