can someone please help me

Can Someone Please Help Me

Answers

Answer 1

Answer:

Explanation:

ionic bonds

Answer 2

Answer:

C) hydrogen bonds

Explanation:

DNA is constructed of two strands, consisting of sugar molecules and phosphate groups. Between these two strands are nitrogen bases, the compounds which make up organisms' genes, with hydrogen bonds between them. Those hydrogen bonds have sometimes been seen as crucial to holding the two strands together


Related Questions

why are some planets harder to see than others planets in the solar system

Answers

Answer:

Because they are farther away

Explanation:

Hi, can somebody please explain this activity to me and what do I do for the graph here? Thanks.

Answers

basically the chart shows you different environments that an enzyme is in and how it’s reacting to it so just graph each enzyme w correct numbers, hope i helped

what do chemical reactions do

Answers

Answer:

A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Explanation:

do all planets move in the same way and the same speed

Answers

Answer:

no

the speed is affected by the mass of the planets and venus moves in the opposite direction to the other plants

Choose the description that best matches the labeled part of the ear.

Answers

Answer:

The second to last

Explanation:

The longitudinal sound waves enter the ear canal.

Which of the following best explains why enzymes are necessary for many cellular reactions?
a.Enzymes supply the oxygen necessary for the reactions.
b.Enzymes change reactants from solids to liquids during the reactions.
c.The reactions take up too much space in the cell if the enzymes are missing.
d.The reactions are too slow to meet the needs of the cell if enzymes are mis

Answers

Answer:

C. The reactions take up too much space in the cell if the enzymes are missing.

Explanation:

hich is a similarity between alcohol fermentation and aerobic respiration?
Both require oxygen.
Both require light energy.
Both start with glycolysis.
Both produce alcohol.

Answers

Both produce alcohol

Answer:

B they both give information

Explanation:

correct 2022

What enrionmental factor can people with pku control to prevent building up extra phenylalanine in thier brains

Answers

Answer:

i-

Explanation:

Gregor Mendel studied pea plants to determine the patterns of inheritance. What is not a reason Mendel used pea plants in his experiments? Check all that apply.

Answers

Answer: Gregor Mendel, pea plants were fundamental in allowing him to understand the means by which traits are inherited between parent and offspring. He chose pea plants because they were easy to grow, could be bred rapidly, and had several observable characteristics, like petal color and pea color.

Explanation:

Answer:

B and D

Part 2 is C

Explanation: edge

Carrie conducted an experiment to see if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. She had 10 volunteers. Each of the first 5 volunteers listened to seven different music selections for 30 seconds each. The person’s pulse was taken before the music and after each 30-second interval of music was completed. The other 5 volunteers did not listen to music and had their pulse taken every 30 seconds for 5 minutes. Based on her experiment, Carrie concluded that a person’s pulse rate did change when the person listened to different types of music. Identify the control group, the experimental group, the independent variable, and the dependent variable.

Answers

Answer:

Independent variable: MUSIC

Dependent variable: PULSE

Control group: The 5 volunteers that did not listen to music.

Experimental group: The 5 volunteers that listened to seven different music selections for 30 seconds each

Explanation:

- Independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response. In this experiment, the independent variable is DIFFERENT TYPES OF MUSIC THAT WAS PLAYED BY CARIE.

- Dependent variable is the variable that responds to the changes made to the independent variable. It is the variable being measured in an experiment. The PULSE, which was measured in this experiment, is the DEPENDENT VARIABLE.

- Control group is the group of an experiment that does not receive the experimental treatment. In this experiment, the GROUP OF 5 VOLUNTEERS THAT DID NOT LISTEN TO ANY MUSIC is the CONTROL GROUP.

- Experimental group is the group that is subjected to the experimental treatment in an experiment. In this experiment, the GROUP OF 5 VOLUNTEERS THAT LISTENED TO SEVEN DIFFERENT TYPES OF MUSIC IS THE EXPERIMENTAL GROUP.

Which of the following statements about solid waste recycling is false?
A. Less expensive for customers who separate their trash before pick up than to use high technology recovery plants
B. Glass, iron and aluminum can be recovered from solid waste
C. Low tech resource recovery involves customers separating trash into categories like paper, glass, plastics and metals
D. High technology recycling provides many more jobs than low technology recycling
E. Materials recovery facilities need a large input of garbage to be financially successful

Answers

Answer:

D) High-technology recycling provides many more jobs than low-technology recycling

Explanation:

Question: What is it that lives if it is fed, and dies if you give it a drink?
A.fire
B,anaimals
C.humans
D.ants

Answers

There answer would be A. Fire

The nitrogen, oxygen, and other gases surrounding Earth
A.are pulled toward Earth by gravity
B.are found mainly near the outer edge of the atmosphere
C.exert pressure only at sea level
D. exert pressure that works against atmospheric pressure

Answers

Answer:

option A is correct

Explanation:

plz help me plzzzzzzzzzzzzz​

Answers

Answer:

4.i.True

4.ii.False

4.iii.True

What can you do to play an active role in cancer prevention?

Answers

Answer: Although humans cannot prevent all cancers, a healthy diet and weight followed by adequate exercise, sleep, and stress reduction all play a part in cancer reduction.

Cancer occurs when cells multiply uncontrollably and are not "cleaned up" by the body. We are dependent on our bodies recognizing and destroying old cells and foreign substances like toxins. When our body's fail to do this, either through stress, poor diet or being sedentary, cancer could result.

Hope this helps.

Chloroplasts and Mitochondria reproduce independently from the eukaryotic cell it is within.

True or false?

Answers

True, I made the quizlet

Red blood cells have a salt content of 0.9%. When a microbiologist places red blood cells in pure
water, osmosis occurs. What net movement of a substance occurs in this instance of osmosis?
a. water molecules move out of the cells
b. water molecules move into the cells.
c. salt ions move out of the cells.
d. salt ions move into the cells.

Answers

Answer:c salt ions move out of the cell

Explanation:

Salt is less than 1

Red blood cells have a salt content of 0.9%. When a microbiologist places red blood cells in pure water, osmosis occurs. This results into water molecules . Thus, the correct option is C.

What is Osmosis?

Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential or lower solute concentration to a region of low water potential or higher solute concentration, in the direction which tends to equalize the solute concentrations on the two sides of the membrane.

It is of two types, on the basis of movement of solvent particles, when the solvent moves inside the cell it is called endosmosis which results into turgid cells and the movement of solvent molecules outside the cell which is called exosmosis that results into flaccid cells.

Therefore, the correct option is C.

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What class is the sting ray in?

Answers

Answer:

Cartilaginous fishes

Explanation:

Answer:

math lol what he said so yah

What is the main function of the small intestine?(use terms : villi, surface area,blood capillaries,why must large molecules be broken down, high concentration and low concentration.)

Answers

Answer:

Among the principal functions of the small intestine, we might mention the peristaltic movement, secretion through special glandules, digestive function, absorptive functions, secretion functions, and endocrine functions.

Explanation:  

The whole digestive tube is approximately eleven meters long, from the mouth to the anus.

The small or thin intestine is the longest organ of the digestive tube. It can reach up to 7 meters long, up to 3 centimeters in diameter, and it characterizes by being folded. These folds are called villi, they project into the intestine light, and they are more concentrated in the first portion of the intestine, the duodene, decreasing to the final region of the organ.

Among the principal functions of the small intestine, we might mention the peristaltic movement, secretion through special glandules, digestive function, absorptive functions, secretion functions, and endocrine functions.

The small intestine receives food from the stomach, and through peristaltic movements, it mixes and carries the material to different regions in the organ. The complex polymeric molecules are digested and transformed into simpler substances. The duodene receives secretions from intestinal glands such as bile and pancreatic juices and mixes them with digestive juices of its production. All of these secretions carry huge amounts of enzymes that will degrade food and transform it into soluble substances, such as amino acids. The intestine walls are covered by villi that increase the absorption surface area. Nutrients are absorbed by primary cells and transported to the bloodstream. Calciform cells secrete mucus to protect the epithelium during digestion. Villi also transport water from the blood to the intestinal tract, which helps in food decomposition. Enteroendocrine cells secrete hormones to the blood vessels and capillaries that enter each villus. When nutrients are small enough they go to enter the bloodstream.

Peyer's patches are nodules or cumulus of lymphatic tissue and other accessory cells, located under the mucosa of the gastrointestinal tract, specifically in the lamina propria of the thin intestine, in the jejunum region. These patches represent the mucosa´s immunity system. In the jejunum, these follicles are isolated from each other in the intestine and low concentrated. But in the terminal ileum (The last portion of the thin intestine) they get so close that they might form a plaque.

16
Select the correct answer.
Which type of evidence is often reviewed in microscopy?
OA physical evidence
OB.
trace evidence
OC. personal experience
OD
testimonial evidence
OE.
circumstantial evidence

Answers

Answer:

B. Trace Evidence

Explanation:

Trace evidence is like fiber or hair or gunshot residue to it would be B. Trace evidence

The physical evidence and trace evidence are both reviewed under microscopy. Therefore, option A and option B are correct statements.

What is microscopy?

Microscopy is a technique to review the smaller size object at high magnification. Forensic science uses the physical or trace evidence found at the crime scene to review under microscopy.

Physical evidence refers to the tangible objects found at the crime scene, such as murder weapons or tool marks. On the other hand, trace evidence refers to the small or even microscopic pieces of evidence left at the crime scene, such as hair, or DNA.

Using the microscopy technique, the forensic team can determine the source of the murder weapon used at the crime scene or even link the suspect to the death of the victim. However, other types of evidence that do not come under microscopy, such as testimonial evidence or circumstantial evidence are also used to build a strong case against the suspect.

Therefore, the physical evidence and the trace evidence both are reviewed under microscopy.

Learn more about microscopy here:

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write essay about connective tissue?

please write correct answer

Answers

How long do you need the essay to be? 3-5 paragraphs or?

A jumbo jet has more gravity acting on it than a single engine plane.
true or false

Answers

Answer:

true

Explanation:

To obtain the energy needed for life processes, plants break down(blank)
of
to release stored chemical energy through the process of (blank)
А.
water photosynthesis
B
sugar respiration
С
sugar photosynthesis
D
water respiration

Answers

The mechanism by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as Photosynthesis.

What steps are involved in a plant's photosynthesis?

Green plants and various other organisms convert light into chemical energy through a process called photosynthesis. Light energy is gathered and utilised during photosynthesis in green plants to change waters, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.

What makes photosynthesis so crucial?

The significance of photosynthesis Solar or radiant energy is converted into chemical energy during photosynthesis. The production of agricultural crops is directly impacted by the rate of photosynthesis. All living things require oxygen, which it provides for the atmosphere. It keeps the ecosystem's carbon dioxide and oxygen levels in check.

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Which process takes longer, primary succession or glacial retreat?

Answers

Answer:

I think it is primary sucession

Explanation:

the process takes a long time

An experiment was performed to determine the health effects of different amounts of second-hand smoke on one-year-old hamsters. What is the Independent Variable of the experiment?

Answers

Answer:

Independent variable: different amounts of second-hand smoke

Explanation:

The independent variable in an experiment is the variable that the experimenter changes or manipulates in order to bring about a measurable response.

In this question, a test is being carried out to determine the health effects of different amounts of second-hand smoke on one-year-old hamsters. Based on this, the independent/manipulated variable is the DIFFERENT AMOUNTS OF SECOND-HAND SMOKE because it is the variable being changed.

what would represent represent the genotype of a heterozygous pea plant?'
A.white
B.purple
C.PP
D.Pp

Answers

Answer:

Pp

Explanation:

Which biome is characterized by plants that drop their leaves in the winter

Answers

Answer:

temperate deciduous forests

Explanation:

What are the two types of venomous snakes? Describe each type and include an example.

Answers

Answer:

The King Cobra and the Black Mamba

EXPLANATION:

The black mamba is a species of highly venomous snake belonging to the family Elapidae. It is native to parts of sub-Saharan Africa. First formally described by Albert Günther in 1864, it is the second-longest venomous snake after the king cobra; mature specimens generally exceed 2 m and commonly grow to 3 m

The king cobra, also known as the hamadryad, is a venomous snake species in the family Elapidae, endemic to forests from India through Southeast Asia. It is threatened by habitat destruction and has been listed as Vulnerable on the IUCN Red List since 2010. It is the world's longest venomous snake.

Answer:

The two types of venomous snakes are Elapine snakes, and Viperine snakes. Elapine snakes have shorter fangs and venom that paralyzes the respiratory system. Cobras and coral snakes are Elapine snakes. Viperine snakes have longer hollow fangs and venom that attacks red blood cells. Rattlesnakes are viperine snakes.

Explanation:

which of the following correctly describes a reaction that forms a disaccharide from two monosaccharides?

Answers

Answer Options:

a. glycogen + fructose = maltose

b. galactose + glucose = lactose

c. glucose + sucrose = fructose

d. maltose + lactose = cellulose

Answer:

b. galactose + glucose = lactose

Explanation:

Monosaccharides are single units. Disaccharides are molecules of two monosaccharides joined together.

Examples of monosaccharides include glucose, fructose, and galactose.

Examples of disaccharides include lactose, maltose, and sucrose.

The only example that shows this is b.

Which molecule has the most energy?
a. carbon dioxide
b. ATP
C. oxygen
d. glucose

Answers

Answer:

D glucose

Explanation:

the original molecule at the beginning of the pathway would have the highest amount of free energy.

The answer would be B. ATP!
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