Desertification is cause by___

A) temperature variations

B) solar heating patterns

C) leaching of the soil

D) human activity

Answers

Answer 1

Answer:

human activities ......

Related Questions

people can obtain groundwater by drilling a well A. above the water table B. into an aquifer C. into the unsaturated zone D. into the impermeable.​

Answers

Answer:

B. into an aquifer

Explanation:

People can obtain groundwater by drilling a well into an aquifer.

An aquifer is a porous and permeable formation where groundwater can be found.

Aquifer is usually found below the water table. In this regard, the pore spaces of this layer of the earth allows for the storage of ground water. When the aquifer is punctured, groundwater can be abstracted.

Answer:

b. into an aquifer

Explanation:

what do chromosomes store?

Answers

Answer:

A chromosome is a single, long molecule of DNA. These highly organized structures store genetic information in living organisms. Small sections of the chromosome, called genes, code for the RNA and protein molecules required by an organism.

5 internal and external ways to help your skin please will mark brainliest​

Answers

Internally should be based on what you feed your body with , when you reduce or stop eating things like chocolates , nuts , oily food , adding a lot of butter can affect your skin proportionally

Externally washing your skin with just water helps , putting on glycerin and all kinds of moistures products . But going to a dermatologist is always the best way to treat skin bc we are not the same
Exfoliate, moisture, apply sunscreen, drink water , eat well

Which will increase the rate of a chemical reaction?

Answers

The rate of a chemical reaction would also increase if you increased the temperature, this is because the thermal energy would change into kinetic energy and the frequency of collisions would increase, increasing the rate.

Where can the following organelle be found:
Vacuole
Answer : it can be found it animals cells and plant cells
(I did the test guys )

Answers

vaculoe you already know the answer ??

The red line in this diagram represents: *

Answers

red line shows the conditions under which a solid can be converted directly to a gas (and vice-versa)

Robert Hooke made this drawing after using a microscope to observe dead cork bark. What does Hooke's drawing show? A. Cell division
B. Cell organelles
C. Living cells
D. Cork cells​

Answers

Answer:

THE Awnser is D

Explanation:

A.P.E.X

Answer:

d

Explanation:

dead cork cells

PLEASE HELP!!!? Are humans an invasive species? Why or why not. GIVE TWO PIECES OF EVIDENCE TO SUPPORT YOUR OPINION.

Answers

Answer:

I think yes, humans are an invasive species.

Explantation:

        I think humans are an invasive species because they are everywhere, and very few places in the world do not have humans. Humans are in control of the planet because of their number. Humans are not going to be extinct ever. They are always going to be here on earth. If somebody finds new land, they make a base/camp and send other people to live there and to populate it. Like in North america, settlers came and sent men to live there. They hunted animals and set up homes. Then, more and more people came and soon all that is left is a over populated land with citys and cars and humans everywhere.

I hope this helps. :)

are bones living or non-living and why

Answers

Non living, it’s part of a body but alone it wouldn’t be alive

What is the anatomy of a leaf

Answers

Answer:

Typically, a leaf consists of a broad expanded blade (the lamina), attached to the plant stem by a stalklike petiole. In angiosperms leaves commonly have a pair of structures known as stipules, which are located on each side of the leaf base and may resemble scales, spines, glands, or leaflike structures.

Explanation:

Hope this helps

Crown me as brainliest:)


Why does candle Q extinguished after a few minutes? *​

Answers

Answer:

flame was extinguished after a few seconds because the jar keeps oxygen from the outside from getting in.

Explanation:

Running out of oxygen makes the flame go out.

pls help
Molecules move in and out of a cell by DIFFUSION. The picture shows a cell and molecules both inside and outside the cell. How will the molecules in this illustration move as a result of diffusion?

Answers

Answer:

They will move into an external environment

Explanation:

I had this question on my test last week

Trilobites are used as index fossils because

Answers

Answer:

d

Explanation:

mountain trekkers use alcohol thermometer, why?

Answers

Answer:They are used rather than mercury thermomethers to in very cold religions because alcohol has lower

Answer:

They are used rather than mercury thermomethers to in very cold religions because alcohol has lower

Explanation:

what is the fluid portion of the chloroplast outside of the thylakoids

Answers

Answer:

stroma

Explanation:

The stroma is the fluid portion of the chloroplast located outside the thylakoids. 6. The visible light absorbed by chlorophyll increases the energy level of the chlorophyll's electrons.

Answer:

I'm pretty sure it's stroma

Turn all these sequences into Mrna instead of DNA

Amino Acid Sequence
MET-VAL- SER-LEU-STOP
MET-VAL-SER-LYS-STOP
MET-LEU-LEU-LEU-PRO-STOP
MET-LEU-LEU-SER-ALA-STOP
MET-ALA-VAL-VAL-STOP
MET-VAL- ALA-ALA-STOP

Answers

Answer:

use this to help you I'm sure you're teacher already reached you how to used this.

Answer this and get brainliest. ^_^
(No Wrong Answers Please.)​

Answers

Answer:

llslslsksskwnnnnwjjsksieieiii3i3ii3i3i3ii3i33i

Answer:

I think its D

Explanation:

(sorry if its wrong)

Help
How many molecules of oxygen is need to undergo cellular respiration?

Answers

Answer:

At least 6. You have to look at the chemical formula for cellular respiration and make sure it is balanced!

C6H12O6+6 O2→6 CO2+6 H2O

Explanation:

Answer:

6

Explanation:

In all three stages of cellular respiration combined, as many as 36 molecules of ATP are produced from just one molecule of glucose.

Which statement describes the offspring of the F1 generation when crossing a pea plant that is true breeding for green seeds with a pea plant that is true breeding for yellow seeds?
The green trait is the dominant trait.
The offspring will inherit one allele from each parent.
The offspring will have both green and yellow seeds.
Each offspring will have a unique set of alleles.

Answers

Answer:

The offspring will inherit one allele from each parent

Explanation:

Just did EDGE

The statement 'the offspring will inherit one allele from each parent' describes the offspring of the F1 generation when crossing a pure green seeds pea plant with a pure yellow seed pea plant.

What is an allele?

An allele is a given gene form, diploid organisms inherit two alleles for gene locus, one from each parent.

A diploid individual can be for a given gene locus:

Homo-zygousHeterozygous

An individual is homo-zygous when it inherits the same allele or gene variant for a particular gene locus.

Conversely, an individual is heterozygous when it inherits different alleles for a given gene locus.

In conclusion, the statement 'the offspring will inherit one allele from each parent' describes the offspring of the F1 generation when crossing a pure green seeds pea plant with a pure yellow seed pea plant.

Learn more about alleles here:

https://brainly.com/question/4079493

The number of chromosomes that result from mitosis is _____.

the same as original cell
double the original cell
half of the original cell
none of the above

Answers

it would be the same as original cell.

Answer:

Hello! This answer would be the same as original cell!

Explanation:

I really hope this helps!

First drag pink labels to pink targets to identify the digestive organs. then drag blue labels to blue targets to identify the source of each digestive enzyme or fluid.

Answers

Answer:

According to the diagram, the digestive organs on the pink targets includes:

a.) Liver, c) esophagus, d) gall bladder, e)Stomach, I) Small intestine j) Pancreas

The source of each digestive enzyme or fluid on the blue targets includes: b) bile, f) pepsin, g) Intestinal enzymes, h) Pancreatic juice.

Explanation:

The digestive system is the collective name used to describe the alimentary canal, accessory organs and a variety of digestive processes that takes place at different level in the canal to prepare food eaten for absorption.

Accessory organs of digestion generate various secretions which are poured into the tract to aid in the digestion of the food taken. They include: salivary gland, pancreas (secrets pancreatic juice), liver ( secrets bile), gall bladder ( stores bile).

hurry plz help for test due in 5 min

Answers

Answer:

Hello! Brainly is a website used for help on school but you should not use brainly for exams, test, or quizes!

                                                                                    BrainlyMiddleSchool

1) What two problems does the transfer of information from DNA to protein need to overcome?

Clues:
a. DNA is made of nucleotides.
b. Protein is made of amino acids.
c. DNA is located exclusively in the nucleus.
d. Protein is synthesized exclusively in the cytoplasm.

Answers

Answer:

The two problems that the transfer of information from DNA to protein must overcome are:

How to bring the information from the nuclear DNA to the place of protein synthesis?How to convert this DNA information into amino acids and then into proteins?

Explanation:

The genetic information is found in the DNA and depends on a specific sequence of nitrogenous bases. This information is transcribed into the messenger RNA, whose base sequence is organized into triplets and codons, each of which encodes an amino acid, as well as establishing the pattern for starting and stopping the synthesis of a protein.

How to bring the information from the nuclear DNA to the place of protein synthesis?

The DNA must be transcribed into messenger RNA (mRNA), a process that occurs in the nucleus of the cell. mRNA leaves the nucleus and travels to the cytoplasm, where amino acid synthesis will take place.

How to convert this DNA information into amino acids and then into proteins?

Once in the cytoplasm mRNA binds to ribosomes, structures in charge of translating the sequence of nitrogenous bases RNA to synthesize amino acids. The set of ribosomes and rough endoplasmic reticulum are in charge of the assembly of amino acids to produce peptides and proteins.

What is Chargaff's Rule?

Answers

Answer:

Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine. This pattern is found in both strands of the DNA.

HELP AND ILL PUT U IN BRAINLIEST

Answers

Answer:

By crossing plants with purple flowers, dominant, with plants with white flowers the offspring will be 100% purple because all the offspring will receive at least one dominant allele.

Explanation:

The crossing of two plants of pure line, one dominant and one recessive, for a trait —the color of the flowers— will produce a hybrid offspring which will express the dominant trait in its phenotype.

Parental generation:

Plant with purple flowers PP Plant with white flowers pp

Cross: PP X pp

Punnett Square :

Alleles       P       P

p              Pp     Pp

p             Pp     Pp

Offspring: 100% Plants whose phenotype is purple flowers and Pp genotype.

According to this, the descendants will be 100% plants with purple flowers, hybrids, since all the offspring received at least one dominant allele.

When electrons transfer from one atom to another, both atoms become Choose... and they are held together by a(n) Choose... bond. When electrons are shared between atoms, a(n) Choose... bond forms between the atoms, and the joined atoms become a(n) Choose... .

Answers

Answer:

This question is incomplete as it lacks a word bank, the word bank are:

Ions

Electrons

Isotopes

Molecules

Covalent

Negative

Ionic

Molecular

Hydrogen

Point

Element

Ionic compound

The answer is:

1. Ions

2. Ionic

3. Covalent

4. Molecule

Explanation:

An ION is a charged atom i.e. an atom with positive (+) or negative (-) charge, which results when an atom loses or gains electrons respectively. The ions of different elements are held together by bonds called IONIC BONDS, which are bonds that form as a result of the difference in electric charges or electrostatic forces between the atoms involved. For example, an ionic bond forms between NaCl because there is an electrostatic force between the positive Na+ ions and negative Cl- ions.

However, on the contrary, when electrons are shared between atoms, a COVALENT BOND is formed. The atoms share their valence electrons to form a MOLECULE, which comprises of two atoms.

How can a shortage of nutrients harm organisms in an ecosystem? How can an excess of nutrients harm organisms in an ecosystem? Give an example of each scenario to support your answers.

Answers

Answer:

Explanation:

Shortage of nutrients in an ecosstem can harm an organism because when nutrients are scarse or very limited for organism and did not meet up with the organism requirements, there will be reduced metabolism and this can cause malfunction. Shortage of nutrients can lead to decline in growth and can lead to spring up of some diseases in the organism because enough nutrients us not available for good metabolic processes and fight diseases.

For example when an organism is deficient in vitamins and carbohydrates, the organism will not have energy to power metabolic processes and for it's activities and vitamins deficient will make the organism not to have the ability to fight against disease.

Too much of nutrients also affect organisms negatively. When there is much build up of nutrients, it can be harmful to the organisms and restrict metabolic processes.

For example too much of nutriwnts like too much of fat can block blood artieries and veins and thus can lead to inability of blood to flow .

Activity
The picture shows five different embryos. Study the picture, and then answer the questions.
What similarities and differences do you notice among the different embryos?

Answers

Answer:

I can tell you some difference but I cant find similarities

Explanation:

they each have thier own heat area

they are each a different breed

they each have thier own cold area

they each come from a different family tree

this all I can really see I hope this helped at least a bit

Answer:

All the embryos have a similar wormlike shape, but they have different features. For example, the amphibian has a large bubble shape in the middle and the fish has a smaller bubble shape. The others don’t have a bubble shape.

Explanation:

Got it off of Edmentum :)

Roots grow into cracks and rocks and break them apart. This is an example of what type of weathering?

Rust occurs when iron chemically reacts with oxygen. what type of weathering is this an example of?

Answers

Answer:

Wedging (for the first one)

Explanation:

Simple sugar molecule: fructose

Answers

Answer:

what's the question??????????????????????????

where is the question so we can help you
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