Answer:
By hydrogen bonds
Explanation:
The two "steps" are made from base pairs formed between the nitrogenous bases. The DNA double helix is held together by Hydrogen bonds between the bases attached to the two strans
Justin is walking around an area that has few trees and many tall grasses.
In which biome is Justin most likely walking?
Answer:
grassland makes the most sense to me, but im not too sure
Answer:
Grasslands.
Explanation:
Water molecules have select answer a lesser a greater an equal attraction for sodium and chloride ions than sodium and chloride ions have to each other.
Answer:
A greater attraction
Explanation:
Water molecules have A GREATER ATTRACTION for sodium and chloride ions than sodium and chloride ions have to each other.
This is because when salt is added to water, it dissolves, which depicts the level of the covalent bond of water is stronger by separating the ionic bond between sodium and chloride, otherwise, the salt would not have been able to dissolve.
(GIVING BRAINLIEST!!)
Which figure has been packed with unit cubes correctly without gaps or overlaps?
explain hybrid vigour.
Answer:
another term for heterosis.
Explanation:
Answer:
Explanation:
it is another term for heteroris or the is the increased functionof any biology quality in a hrbird offspring
The habitat of a rattlesnake is the hot, dry desert. Could this organism live in the
cold, Artic habitat? *
Answer:
No, a rattlesnake would not be able to survive in the Arctic. This reptile is specially equipped with features suited to a hot desert, which would be a hinderance in a cold desert rather than an advantage. Also cold-blooded organisms must be able to bask in the sun to maintain a stable body temperature, but in the Arctic, that wouldn't be possible.
Histology is important in the health sciences because it makes it possible to study
A) dislocated joints.
B) diseased cells and tissues.
C) concussions.
D) blood flow through the heart.
Answer:
B)
Explanation:
Histology is important in the health sciences as it studies the structure and function of tissues and cells.
While studying about how tissues and cells are working helps to recognize different diseases. It can also helps to identify the cause of such diseases and treatment of diseases.
Hence, the correct answer is "B)."
Answer:
B
Explanation:
I am a producer, using my scientific name you would call me an
Answer:
An autotroph
Explanation:
An autotroph is a producer that makes their own food/energy
Please help meeeeeeeee
If the tidal range is very small, where will all of the wave's energy be concentrated?
A- Scattered throughout the wave
B- In the same place
C- Toward the left side of the wave
D- Toward the right side of the wave
A fir tree draws fixed nitrogen from the ground and send it to new needles. During this
interaction, the xylem works in conjunction with which system? *
Answer:
Root System
Explanation:
I went to middle school...
A fir tree draws fixed nitrogen from the ground and send it to new needles. During this interaction, the xylem works in conjunction with root system.
What are the functions of root system?A fibrous root system forms a dense network of roots that is closer to the soil surface. An example of a tap root system is a carrot. Grasses such as wheat, rice, and corn are examples of fibrous root systems.
The roots of the plants are found underground, and their important functions are water and nutrient absorption. Root systems are classified into 3 they are: Tap Root systems, Fibrous Root systems, and Adventitious Root systems.
Its primary functions are anchorage of the plant, absorption of water and dissolved minerals and conduction of these to the stem, and storage of reserve foods.
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How does physics relate to the solar system
Which sentence best describes the relationship between genes and chromosomes?
A. Genes are found within chromosomes.
B. Several chromosomes make up one gene.
C. Genes are located inside the nucleus, and chromosomes are located outside the nucleus .
D. Chromosomes are located inside the nucleus and genes are located outside the nucleus
maceus
Answer:
A. Genes are found within chromosomes.
Explanation:
A chromosome is a single linear, coiled DNA molecule that contains part or even all the genetic material of an individual. On the other hand, genes are chromosomal segments that contain the instructions required to encode a specific protein, which is stored in the form of a sequence of nucleotides. In consequence, a chromosome may have many genes. In biology, a gene is considered to be the basic physical and functional unit of heredity.
Human gametes should contain chromosomes each. This number would be considered the
(haploid/diploid) number for humans. The symbol for this is
Answer:
Human gametes should contain 23 chromosomes each. This number would be considered the haploid number for humans. The symbol for this is n.
Explanation:
Gametes are an organism's reproductive cells. Female gametes are called egg cells, and male gametes are called sperm.
In most organisms, somatic cells (all cells except for gametes) are diploid, whereas the gametes tend to be haploid. Haploid cells have a single set of chromosomes, while diploid cells have two sets of chromosomes.
When it comes to human cells, somatic cells have 46 chromosomes. This means that each gamete has 23 chromosomes. This is called the haploid number and is marked by a lowercase n. This number refers to the total number of chromosomes found in a gamete (for human cells n=23).
- What is the ultimate process that moves the tectonic plates?
A. Gravitational Forces
B. Convection
C. Solar Winds
D. Unknown - Still Investigating
Answer:
I would say B - Convection
Explanation:
it is volcanos and earthquakes that move the tectonic plates... but those act like convection currents...
-Solar Winds come from the Sun and they are reflected off of Earth's magnetic shield so that can't be correct.
-Gravitation does play a role yes but I can not say that it actually causes it... (Gravity holds everything in orbit and also together... and it helps keep things on Earths surface -it is the reason why we can still breath-)
-Unknown - Still Investigating, The reason why the tectonic plates move "was" discovered... or at least it is believed to have been. But I do not doubt that they are still studying it... because they probably are still investigating
-The convection currents move the plates. Where convection currents diverge near the Earth's crust, plates move apart. Where convection currents converge, plates move towards each other.
I have a nice day and I hope it helps!
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Which statement best describes a difference between saturated fats and unsaturated fats?
A. Unsaturated fats tend to have higher melting points because they have only single carbon-carbon bonds, which allow the molecules to be straight.
B. Unsaturated fats tend to have lower melting points because they have at least one carbon-carbon double bond, which causes the molecule to bend.
C. Unsaturated fats tend to have lower melting points because they have only single carbon-carbon bonds, which allow the molecules to bend.
D. Unsaturated fats tend to have higher melting points because they have at least one carbon-carbon double bond, which causes the molecule to be straight.
Answer:
B.
Explanation:
Unsaturated fats are fats that have one or more carbon-carbon double bond in their chain. The double bond causes the molecule to bend. The molecules do not stack well, which causes the intermolecular forces to be much weaker than those of saturated fats. This causes the melting points to be lower for unsaturated fats.
Hope that helps.
The statement that differentiates unsaturated and saturated fats is "Unsaturated fats tend to have lower melting points because they have at least one carbon-carbon double bond, which causes the molecule to bend".
WHAT IS SATURATED AND UNSATURATED FATS?
Saturated fats are a type of fats that lack carbon to carbon double bonds in their structure, however, in unsaturated fatty acids, there is at least one double bond in the chain. Due to the double bonds possessed by unsaturated fats, their molecules tend to bend structurally. Unsaturated fats are mostly liquids at room temperature, as opposed to saturated fats which are solids. Hence, unsaturated fats will possess a low melting point compared to saturated fats.Therefore, Unsaturated fats tend to have lower melting points because they have at least one carbon-carbon double bond, which causes the molecule to bend.
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The north pole and the magnetic pole are what? a-located at the same point b-located near each other c-two different names for the same thing
Answer:
b, located near each other
For which reasons would a male peacock spread his tail feathers? Check all that apply.
1) to cool off his body
2) to attract a peahen
3) to show that he is healthy
4) to protect his peachicks
5) to intimidate rival males
6) to run from a predator
Answer:
it would be 2 and 5
Explanation:
When the male peacock spreads his tail feathers to create a spectacular fan of blue and green, the illusion of large penetrating eyes are displayed. Not only do these eyes attract mates, but they also scare away potential predators, like snakes or large wild cats.
Answer:
2 3 5
Explanation:
In the Valley and Ridge province, you can find the fossils of ancient marine organisms. This has led to the theory that
A)
a tidal wave washed the fossils ashore.
B)
the ocean once covered an area that is now dry.
C)
the ocean is covering an area that was once dry.
D)
someone has misplaced a collection of seashells.
Eliminate
Answer:
it's answer is B
the ocean once covered an area that is now dry
Answer:B
Explanation: K12
I will mark brainiest for the correct answer
Once a plant obtains carbon dioxide from the atmosphere it produces __________ as an energy source through photosynthesis.
A. Water
B. Glucose
C. Carbon
D. Carbon Dioxide
answer:
B
Explanation:
6CO2+6H2O+energy from sun=C6H1206+6O2
C6H12O6 is a form of glucose
Once a plant obtains carbon dioxide from the atmosphere it produces glucose as an energy source through photosynthesis. Thus, option B is correct.
What is photosynthesis?Photosynthesis is the process by which green plants prepare there own food in the presence of sunlight and during this process heat energy converted into chemical energy.
Leaf is known as site for photosynthesis it means the process of photosynthesis that occurs in leaf. The main function of leaf is to produce food material for plants which will help plants to get nourished.
Plants absorb nitrates in water through their roots without nitrates, the amount of chlorophyll in leaves reduces.
Nitrate is a common inorganic ion found in plants that is required for proper growth and development. Many growers include the addition of nitrates in their nutrient regiment to stimulate plant growth. Plants acquire nitrate through root intake from the soil and water around them.
Therefore,Once a plant obtains carbon dioxide from the atmosphere it produces glucose as an energy source through photosynthesis. Thus, option B is correct.
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what is the basic unit of classification of living beings
Answer:
cells
Explanation:
the cell is the smallest unit ofa living thing andis the basic building block of all living things p.sim only 12 so sorry if this wrong
describe early earth
Answer:
hot
very hot
like super hot
coo coo crazy hot
what is a recessive trait
Answer:
A recessive trait is the unexpressed trait of a dichotomous pair of alleles. Also known as the "baby" letter.Which of the following describes a structure that both prokaryotic and eukaryotic cells have in common?
A) This membrane-bound organelle encloses the cell's DNA and is where DNA replication occurs.
B) This organelle is composed of protein and RNA and is used to make proteins for the cell.
C) This organelle is composed of a stack of membrane sacs where proteins are modified and stored.
D) This organelle extracts energy stored in glucose molecules to power cell functions.
Answer:
b
Explanation:
its a ribosome. they both have ribosomes made of DNA and protein that make proteins
I am certain the answer is B, This organelle is composed of protein and RNA and is used to make proteins for the cell.
Hope this helps! :D
How is the HIV infection different from a cold virus
A. HIV replicates itself inside cells
B. HIV diffuses across membranes
C. HIV attacks lymphocytes directly
D. HIV is killed by lipases
The HIV infection is different from a cold virus because HIV attacks lymphocytes directly (Option C).
What is the HIV infection virus?The HIV infection virus is a retrovirus that causes human immunodeficiency virus infection (AIDS). This virus is able to attack cells of the immune system such as lymphocytes directly and cause damage in the immune responses or immunosuppression,
Therefore, with this data, we can see that the HIV infection virus is able to cause the death of cells of the immune system, thereby hampering the immune response and triggering the process of immunosuppression.
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How did prokaryotes evolve into eukaryotes??
Answer:
Evolution of cells.
Explanation:
The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
Answer:
Evolution of cells. The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
hope this helps!!:)
Explanation:
Which type of agricultural trend characterized the Green Revolution?
A Farmers stopped using industrialized farming techniques and began using
sustainable agriculture.
B. Farmers stopped growing traditional varieties and began growing genetically
modified crops
Farmers stopped growing traditional varieties and began growing high-yield
varieties
Х
D. Farmers stopped using pesticides and began using organic farming
practices
Answer:
Farmers stopped growing traditional varieties and began growing high-yield
varieties
Explanation:
Answer:
c
Explanation:
Decomposers are necessary in an ecosystem because they 0
A. produce food for plants by the process of photosynthesis.
B. Povide energy for plants.
C. Make nutrients available to plants through the process of decay
D. Can rapidly reproduce and evolve. .
Answer:
C .
Explanation:
They perform a valuable service as Earth's cleanup crew. Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. Imagine what the world would look like! More importantly, decomposers make vital nutrients available to an ecosystem's primary producers—usually plants and algae.
Answer:
B provide energy for plants
Pls help mee with this 5 questionnn :c
A student uses paper towels to clean up a small chemical spill in the lab where should the dirty paper towels be placed
Answer:
In the hazardous bin :) plz rate brainliest
Explanation:Hope this helps ya
Answer:
Hazardous bin. I did this question but forgot the answer, sorry. but I remember IT WAS NOT TRASH CAN!
Explanation:
A DNA sample contains 26% thymine. What percent of the sample is:
% guanine
% adenine
% cytosine
Answer:
adenine = 26%
guanine= 24%
cytosine=24%
Explanation:
adenine=thymine
then 100 - (adenine+ thymine)= cytosine+guanine
