Answer:
Because they don't have fertilizer.
Explanation:
Well, if this was a long time ago, then farmers did not have fertilizer. So, there are bacteria on the roots of plants that convert nitrogen into a usable form. It's very important for growing, and when farmers harvest the crop, not much of the nitrogen is returned to the land, so it is not as fertile. Fertilizer is largely consisted of nitrogen, so that is why farmers use fertilizers today. But "a long time ago," farmers did not have fertilizer.
Cold air is denser than warm air and therefore has higher what?
1.Air pressure
2.Amount of water vapor
3.Mass
4.Volume
.
The amount of the earth's surface covered by oceans is approximately what ?
A: 1/4
B: 1/3
C: 1/2
D:3/4
E: 4/5
pleaseeee hurry
Answer:
3/4
Explanation:
I would have to say this because earth is covered in about 71% of water and 3/4 is closest to that. :)
explain what would happen to the system if anthropogenic carbon was to continue to increase in the system
Amplify 1.5 force and motion lesson. I NEED HELP!
Answer:what does that paper mean
Explanation:are u actually in college or is that a job application
PLS ANSWER What happens to glucose and oxygen that is produced by plants during photosynthesis?
Answer:
During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP. Water and carbon dioxide are released as byproducts.
Explanation:
Selective breeding produces cultivated varieties of plants within the same genus. Cultivars often use ____
names following the genus, which are not based in Latin. For example, for a hybrid tea rose which is
black, it is called Rosa'Black Baccara'.
Answer:
Binomial
Explanation:
Answer:
The correct answer is - cultivar epithet.
Explanation:
Selective breeding results in cultivated varieties of plants of the same genus. These cultivated varieties are called cultivar names. This cultivar name consists of the scientific Latin botanical genus name followed by a name called as cultivar epithet.
Vernacular language is the full cultivar epithet of the species such as an example given here of herbal hybrid tea called Rosa 'Black Baccara'.
A strand of DNA consists of 35% adenine. What is the percentage of guanine in that same molecule
of DNA?
Answer:
Explanation:
We know that the sample is 35% adenine, which tells us that it is also 35% thymine. We know that cytosine and guanine pair together and will be present in equal amounts, so we can divide this final total by 2 to find our answer. The sample is 35% adenine, 35% thymine, 15% guanine, and 15% cytosine.
Answer:
25%
Explanation:
Hope this is helpful!!
What is the social function of exposition text?
Answer:
Exposition is a text that elaborates the writer‘s idea about the phenomenon surrounding. Its social function is to persuade the reader that the idea is important matter.
Explanation:
Shadows happen when an object:
Answer:
c: allows some light to pass through
Explanation:
makes the most sense
Answer: A
Explanation: Shadows are made by blocking light. Light rays travel from a source in straight lines. If an opaque (solid) object gets in the way, it stops light rays from traveling through it. This results in an area of darkness appearing behind the object.
Which of the following are the possible allele combinations from the gametes of an organism with the genotype of AaBb?
A
AB, only
B
AB and ab, only
С
Aa and Bb, only
D
AB, Ab, aB, and ab
Answer:
AB I'm pretty sure ysv6igscugz hii shivhxhix vhzo xvjz joxpj xj
The possible allele combinations from the gametes of an organism with the genotype of AaBb is AB, Ab, aB, and ab. The correct option is D.
What are alleles?Alleles are variations of the gene. The offspring contain genes or traits from both parents. The same trait is given by both parents, one become dominant and one become recessive.
A gamete is a haploid cell that fuses with another cell to produce offspring, This occurs during fertilization. The female gamete is called ova or egg, or male cells are sperms.
When the genotype that will be produced by the fusion of AaBb is AB, Ab, aB, and ab. The small letters denote the recessive gene and the capital letter denotes the dominant genes.
Thus, the correct option is D. AB, Ab, aB, and ab.
To learn more about alleles, refer to the link:
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5.. Which compound is formed as a common product of the process of
photosynthesis? *
A.DNA
B.sugar
C.chlorophyll
D.carbon dioxide
Answer:
B.Sugar ( Glucose)
Explanation:
I hope this helps!
A compound that is formed as a common product of the process of photosynthesis is sugar (glucose).
What do you mean by Photosynthesis?Photosynthesis may be defined as a process through which plants utilize carbon dioxide and convert it into glucose in the presence of sunlight.
The reactants of photosynthesis are carbon dioxide and water, while the products are glucose and oxygen.
The reaction of photosynthesis is given below:
[tex]6CO_2 + 12H_2O[/tex] → [tex]C_6H_1_2O_6 + 6O_2 + 6H_2O[/tex]
Therefore, a compound that is formed as a common product of the process of photosynthesis is sugar (glucose).
To learn more about Photosynthesis, refer to the link:
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The energy stored in food molecules in living cells is gradually released in a series of linked chemical reactions called a ____________.
15. female reproductive hormone (either one)
_________________________
Answer: The hormones controlling the female reproductive system include - (), - (), and (), all of which are produced in the brain.
The following methods: budding, binary fission, regeneration, and cloning are all ___ reproduction.
A. meiosis
B. Mitosis
C. Variation
Answer:
Your answer is B) Mitosis.
ALOT OF POINTS! PLEASE HELP I BEG OF YOU!! NO RANDOM ANSWERS PLEASE!!!
1. Give two similarities between each of the skulls that might lead to the conclusion that these are all related species.
Answer:
here!
Explanation:
the eyes and the beak shape on the skulls are similar throughout all of the species and that circle in between their teeth which may be a gap is consistent throughout the skulls.
20 POINTS!! easy question! pls help it's biology 1!
Answer:
C.
please give brainliest
I’m not sure if I’m anywhere close to right on this, can someone simply review it and give me feedback? Please! Giving all my points
Answer:
Your 100% Correct Im an advanced scientist in highschool!
Well Done! Also Im new so sorry if you done trust.
Explanation:
Please help!
Anyone know what this is?
Answer:
ummmm d?
Explanation:
Answer:
i think its A
Explanation:
What are some of the main characteristics of life?
The Characteristics of Life Living things include both the visible world of animals, plants, and fungi as well as the invisible world of bacteria and viruses. On a basic level, we can say that life is ordered. Organisms have an enormously complex organization.
Explanation:
A pea plant that has round seeds has the genotype Rr. It is crossed with a pea plant that has wrinkled seeds and the genotype rr. What is the probability that the offspring will have wrinkled seeds?
Why is animal testing bad?
Answer:
Explanation:
Animal experiments may result in clinical trials of biologically faulty or even harmful substances, thereby exposing patients to unnecessary risk and wasting scarce research resources. Animal toxicity studies are poor predictors of toxic effects of drugs in humans.
Answer:
Experimenting with animals is not justified with anything, they practically play with beings that have life, emotions and that feel pain like all living beings.
Advances the experiments that are done on them, are not used, or the purpose is simply lost, as well as their life.
A scientist creates a cat that glows in the dark due to the insertion of genes from another organism. What type of biotechnology did they use?
cloning
genetic mutation
artificial selection
genetic engineering
Answer:
Artificial selection
Explanation:
TRUE OR FALSE: Phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part of the cell to another, and may ultimately become part of the cell membrane, the ER, a vesicle membrane, etc. In fact, any phospholipid may be called a "cellular tourist" because it is able to move about to virtually any part of a cell and can even become a part of a cell in a different region of the body! (EXPLAIN WHY)
Answer:
False, because phospholipids are a type of lipids and the nuclear envelope contains nucleic acids.
Explanation:
Hope this helps.
It is true that phospholipids that are a part of the nuclear envelope (membrane around the nucleus) can easily move from one part of the cell to another, and may ultimately become part of the cell membrane, the ER, a vesicle membrane, etc.
What is nuclear envelope made of?The nuclear envelope is made up of two concentric lipid bilayer membranes separated by a 20-40 nm intermembranous space.
In many places, the outer membrane is joined to the rough endoplasmic reticulum. The outer membrane of the nuclear envelope, like the rough ER, is dotted with ribosomes.
The nuclear envelope is made up of two membranes: an outer and an inner phospholipid bilayer. The lumen of the rough endoplasmic reticulum is connected to the thin space between the two layers (RER).
Nuclear pores, which are small channels that run across the nuclear envelope, allow substances to enter and exit the nucleus.
Each pore is lined by a group of proteins known as the nuclear pore complex, which regulates which molecules can enter and exit.
Thus, the given statement is true.
For more details regarding nuclear envelope, visit:
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I WILL GIVE 30 POINTS
Matter can be changed through physical processes, chemical processes, or nuclear processes.
What is viscosity?
[tex]\huge{\underline{\mathtt{\red{A}\pink{N} \green{S}\blue{W} \purple{E}\orange{R}}}}[/tex]
Matter is anything that has mass and takes up space. It includes molecules, atoms, fundamental particles, and any substance that these particles make up. Matter can change form through physical and chemical changes, but through any of these changes matter is conserved.
In other words, matter doesn't change into a different substance in a physical change. ... Changes of state—for example, from solid to liquid or from liquid to gas—are also physical changes. Some of the processes that cause physical changes include cutting, bending, dissolving, freezing, boiling, and melting.
Hope it helps you :)
The zebra mussel is an invasive species. Which statement is most likely true if the zebra mussel is introduced to a new environment without predators?
A. Zebra mussels will disrupt the community and cause native species to decline as they eat all the food.
B. Zebra mussels will not cause a significant change in the community.
C. Zebra mussels will become part of the climax community.
D. Zebra mussels will become the keystone species.
Answer:
A.
Explanation:
when given that a species is invasive you can read through the answers and determine which description sounds invasive
Evolution is the process by which populations of organisms change over time. How could natural selection lead to evolution?
Answer:
happy Teddy day I love Teddy
PLEASE HELP WILL GIVE BRAINLIEST AND 23 POINTS!! Based on the data provided in this activity, what type of liquid seawater, in terms of salinity and temperature, will generally be the densest?
Answer:
Seawater that is very cold (around 4°C) and that has a high salt content will generally be the densest formulation.
Explanation:
plato
What planet was calculated to exist before it was actually seen?
Answer:
The planet NEPTUNE was mathematically predicted before it was directly observed.
are protein molecules made by ribosomes in the cell
Answer: yes they are
Explanation:
Answer:
Yes that would be Correct.
Explanation:
I Learned that…
The _is the coordinating system of the body. It consists of the
, _, and the nerves. The two divisions of nervous system are central nervous system and _ . The system takes in information through the senses. For example, if you touch a hot stove, the sense of the skin brings the message of pain to your brain. The brain then sends a message back telling the muscles in your hand to pull away.
The nervous system is the coordinating system of the body.
It consists of the brain, spinal cord, and the nerves.
The two divisions of nervous system are central nervous system and peripheral nervous system.
Answer:
The nervous system is the coordinating system of the body.
It consists of brain, spinal cord and the nerves.
The two divisions of nervous system are central nervous system and peripheral nervous system.
The system takes in information through the senses.
Explanation:
Given example is that if you touch a hot stove, the senses of the skin brings the message of pain to your brain. The brain then sends a message back telling the muscles in your hand to pull your hand away and this is when the reflex action takes place. This is called the reflex action.
