Why are nonnative species a threat to biodiversity?

Answers

Answer 1

Answer:

b and e

Explanation:


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The figure presents a diagram of adding d T M P to a growing strand of D N A. A D N A template that consists of nine nucleotides is shown. Five nucleotides have already been added to the complementary strand that is growing from left to right along the template. The left end of the growing strand is labeled 5 prime, and the right end is labeled 3 prime. The left end of the template strand is labeled 3 prime, and the right end is labeled 5 prime. An incoming d T T P has three phosphate groups. Arrows indicate that the two outermost phosphate groups split off as the d T M P with the remaining phosphate group is about to join to the 3 prime end of the growing strand.
Figure 1. Model showing details of adding a deoxythymidine monophosphate (dTMP) nucleotide to a growing strand of DNA

The features of this model provide evidence for which explanation of why all growing strands are synthesized in a 5′ to 3′ direction?


A. The two strands need to be antiparallel to bond properly.


B. Thymine and adenine would not bond properly if the strand grew from 3′ to 5′.



C. The translation of mRNA occurs in the 5′ to 3′ direction; therefore, the growing DNA strand must also grow in the 5′ to 3′ direction.


D. The phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand.

Answers

Answer:

D - The phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand.

Explanation:

I got it checked and it was right

The feature of the model provides evidence in a 5′ to 3′ direction is the phosphate group, attached to the 5′ carbon of the dTMP, forms a covalent bond with the oxygen atom attached to the 3′ carbon of the growing strand. The correct option is D.

What are DNA bases?

The sequence of DNA bases is referred to as the DNA sequence. RNA and DNA are both genetic elements composed of nucleic acids composed of deoxyribose acid, while RNA is composed of ribonucleic acid.

Both DNA and RNA have four bases that are linked together by a hydrogen bond. RNA has uracil in place of thymine, but DNA has timing and all other bases are the same.

Therefore, the correct option is D. The phosphate group, connected to the dTMP's 5′ carbon, creates a covalent bond with the oxygen atom associated with the developing strand's 3′ carbon.

To learn more about DNA bases, refer to the link:

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In which cellular organelle is genetic information (DNA) held?
Mitochondria
Ribosomes
Cell membrane
Nucleus

Answers

Answer:

Nucleus

Explanation:

Grizzly bears have a diploid number of 74 chromosomes in their body cells. How many chromosomes were in each of the male's sperm cells?.

Answers

Answer:

74 ÷ 2 = 37

since it's only one gamete cell then it's twice less the number

C2H5OH
How many elements are there in a molecule of
Ethanol shown in the above formula?

Answers

Answer:

9 elements

Explanation:

there are 2 C

6 H

1 O

There’s are 3 elements: Carbon, Hydrogen and Oxygen

Ethanol consists of 9 atoms:

2 Carbons
6 Hydrogens
1 Oxygen

2 + 6 + 1 = 9 atoms in total

Although the question doesn’t ask for atoms I just wanted to make things clear between them so you don’t get the numbers mixed up. Apart from that, there are 3 elements present in Ethanol.

Blank 1) Proteins
Cytoplasm
Chromosomes

Blank 2) Alleles
Proteins
Chromosomes

Blank 3) Mutations
Adaptations
Chromosomes

Blank 4) Neutral
Harmful
Beneficial
Beneficial, neutral, or harmful

Answers

Answer:

Blank 1) chromosomes

Blank 2) proteins

Blank 3) mutations

Blank 4) harmful

Write a paragraph that explains the increase and how technologies that have appeared over
the past 100 years may have contributed to the increase or may have prevented more
significant increases in greenhouse gas levels.

Answers

Answer:

Mar 4, 2011 — Past changes in Earth's temperature happened very slowly, over ... Human activities contribute to global warming by increasing the greenhouse effect. ... Emissions of carbon dioxide, the most important greenhouse gas, ... Even slight rises in average global temperatures can have huge effects. ... 100 years.

Explanation:

How does the immune system work with other body systems to protect the body from pathogens?

Answers

Answer:

integumentery system

Explanation:

your skin is actually the first protection against illness-causing pathogens.

Your body uses organs such as the skin, lungs, liver, and a couple more to help remove or prevent illnesses from entering the body. The immune system will basically tell the stomach to empty all of its contents (food and liquids) to help purge the virus or bacteria. That is one example


1. This is a glucose molecule, the sugar made in photosynthesis. Saccharides, or sugars, are
the building blocks for carbohydrates. What is another term for “building block?"

Answers

another term would be a monomer which link together to form polymers


Of the 6 elements which is most important for making large molecules (chnops) PLEASE HELP ME I NEED IT QUICK!!! Thanks

Answers

The answers either Carbon or Oxygen

In this assignment, you will write a story about how different foods travel through the digestive and excretory system from the mouth to the anus. Pretend that you are a food, such as pizza, traveling through the digestive system. Explain what happens to you (food) in the digestive tract from the time you are placed in the mouth until you exit the body. What do you see along the way? What happens to you at each part of the journey? Make your story creative and fun. The essay should be 1 to 1.5 pages, typed (using 12 pt. font), double-spaced.
Your story should have the following elements:
• Describe how food travels through the digestive system.
• Include 3-4 different foods.
• Explain what occurs at each organ of digestion.
• Be written in the first-person point of view (This means you pretend that you are the food, so use I and me to refer to yourself).
Include these key words and phrases: stomach, digestion, small intestine, large intestine, mouth, anus, and complete digestive system.

Answers

Answer:

ghost town

i am a hacker

Explanation:

i hack 100 ppl you know

Which of the following is the correct rule of nucleic acids in the body?

A. They provide quick-releasing energy to the body

B. They contain genetic information that is passed to offspring

C. They catalyze chemical reactions left in the cell

D. They are the main structural components of cell membranes

Answers

Answer: B. They contain genetic information

Explanation: The role of nucleic acids is to store the genetic information (DNA) and to decode that information into proteins (RNA). DNA is also the form in which genetic information is passed from one generation to the next.

Give two ways in which saliva aids digestion. ​

Answers

Explanation:

Saliva contains special enzymes that help digest the starches in your food. An enzyme called amylase breaks down starches (complex carbohydrates) into sugars, which your body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.

Cancer cells are rogue cells. List and explain 3 mutations that allow cancer cells to occur:

Answers

Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor

Messenger RNA (mRNA) travels from the nucleus of a eukaryotic cell to the ribosome. At the ribosome, the amino acids are lined up in order as the tRNA molecules line up with complementary bases on the mRNA. This process is called _____ and results in the formation of _____.

Answers

Answer:

The correct answer is - translation, polypeptide/amino acid chain.

Explanation:

The translation is the process that involves the movement of mRNA from the nucleus to the ribosome and where amino acids are formed in sequence linked with one another in the same order as the transfer RNA line up with the complementary bases encoded on the messenger RNA or mRNA.

This amino acid chain or the polypeptide folds in a specific way to active protein for the specific function or expression. This process is the last stage or phase of protein synthesis.

Match the type of metamorphism to its cause.

Answers

Answer:

Contact - Heat

Dynamic - Directed Pressure

Impact - Meteorite

Regional - Surrounding

A nucleotide consists of

Answers

A nucleotide is made up of a sugar molecule connected to a phosphate group and a nitrogen-containing base. These bases in nucleotides are adenine, cytosine, guanine, and thymine (Note: Thymine is not present in RNA so it is replaced with Uracil.)

Just as energy flows through an ecosystem, matter also moves from organism to organism and from organisms to the environment. Using either a kelp forest or a hydrothermal vent ecosystem as an example, explain how carbon can move through the organisms in that ecosystem.

Answers

Answer:

Explanation:

Energy is transferred through an ecosystem in steps, making up a food chain or a food web. At the bottom of the chain are the primary producers, which absorb sunlight and use the light energy to convert carbon dioxide and water into carbohydrates (long chains of sugar molecules) and eventually into other biochemical molecules, by photosynthesis.

The primary producers support the consumers—organisms that ingest other organisms as their food source. Finally, decomposers feed on decaying organic matter, from all levels of the web. Decomposers are largely microscopic organisms (microorganisms) and bacteria.

The food web is really an energy flow system, tracing the path of solar energy through the ecosystem. Solar energy is absorbed by the primary producers and stored in the chemical products of photosynthesis. As these organisms are eaten and digested by consumers, chemical energy is released. This chemical energy is used to power new biochemical reactions, which again produce stored chemical energy in the consumers' bodies.

Energy is lost at each level in the food web through respiration. You can think of this lost energy as fuel burned to keep the organism operating. Energy expended in respiration is ultimately lost as waste heat and cannot be stored for use by other organisms higher up in the food chain. This means that, generally, both the numbers of organisms and their total amount of living tissue must decrease greatly up the food chain. In general, only 10 to 50 percent of the energy stored in organic matter at one level can be passed up the chain to the next level. Normally, there are about four levels of consumers.

A food chain or a food web is made up of the stages through which energy is moved across an ecosystem. The primary producers are found at the bottom of the food chain.

What is food chain?

By photosynthesis, they transform carbon dioxide and water into carbohydrates (long chains of sugar molecules) and ultimately into other biological compounds.

The consumers are organisms that consume other organisms as food—are supported by the primary producers. Decomposers, who feed on decaying organic materials from all tiers of the web, are the last group. The majority of decomposers are bacteria and tiny organisms.

The food web actually follows the route of solar energy through the environment and is a system of energy flow.

Therefore, A food chain or a food web is made up of the stages through which energy is moved across an ecosystem. The primary producers are found at the bottom of the food chain.

To learn more about food chain, refer to the link:

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How can vaccines be used to prevent viral infection?
A.)To prevent a immune response in the host
B.)To destroy any virus that enters the host
C.)To create a blocking protein on the cell
D.)To prevent the replication of the virus

Answers

Answer:

D

Explanation:

I know

Answer:

I believe that your answer is C.

Explanation:

C is your answer because it shows your body how to fight and block the virus.

vaccines usually send antigerms in your cells and create immunity/block the virus from entering your cells.

i hope this helps! let me know if im wrong :)

ill give you a brainliest if it is right

Answers

Answer:

Both water and oil are not minerals because they are liquids.

Explanation:

Please answer quickly, timed test!!
Which term is correctly paired with its role in the body?

A) insulin – a sugar that regulates blood glycogen levels
B) ADP – a molecule that releases energy when it forms ATP
C) glycogen – a hormone found in blood that regulates blood glucose levels
D) glucose – a sugar found in blood that can be broken down to produce ATP

Answers

Answer:

D.

Explanation:

insulin is not found in the body

Answer:

D

Explanation:

because glycogen is NOT a form of sugar so insulin wouldn't regulate it the other person knows nothing about the body (no offense)

plz give thanks and rating and if you want to give brainlist

At the age of 22, Mrs. LaBlanc was less than 4 feet tall. Her short stature was probably influenced by the lack of a growth hormone produced by the

Answers

Human growth hormone (GH) is a substance that controls your body's growth. GH is made by the pituitary gland, located at the base of the brain. GH helps children grow taller (also called linear growth), increases muscle mass, and decreases body fat.

Answer:

pituitary gland

Explanation:

I got it right on the worksheet

What particle in an atom determines what element it is?

Answers

Answer:

Protons

Explanation:

The number of protons in the nucleus determines which element an atom is, while the number of electrons surrounding the nucleus determines which kind of reactions the atom will undergo. The three types of subatomic particles are illustrated below for an atom of helium—which, by definition, contains two protons.

help please don't know the answer​

Answers

Answer:AAll life on Earth stores its genetic material inside the nuclei of its cells.

All life on Earth has DNA. All life on Earth has the same set of mutations in its genes

Obviously A
Hop it helped:)

please help please giving brainlest

Answers

Answer:

hmm it think it is option one as the answer

Explanation:

because i typed it in and i found the answer

This is the origin of new combinations of traits in offspring(fourth option). This process is called crossing-over or intrachromosomial recombination. This is the reason why parents and offspring don't look alike

At night, a land breeze forms because

A) water releases less solar energy during the day; warm ocean air moves into land.
B) land cools more quickly than water; cool land air moves to replace rising warm air over the water
C) land absorbs less solar energy during the day; cool land air moves to replace rising warm air over the water
D) water absorbs more solar energy during the day; cool land air moves to replace rising warm air over the water

Answers

Answer:

B) land cools more quickly than water; cool land air moves to replace rising warm air over the water

Explanation:

During the day, the land surface heats up faster than the water surface. Therefore, the air above the land is warmer than the air above the ocean. ... The bottom of the following image illustrates the land breeze that occurs at night. Recall that the land surface cools quicker than the water surface at night.

Which statement best describes the purpose of Earth's spheres?

Answers

Answer:

They work together as open systems to cycle matter through ecosystems. They work independently as closed systems to cycle matter through ecosystems. They work together as open systems to move matter to living and nonliving parts of Earth

One major difference between prokaryotic and eukaryotic cells is
Group of answer choices

Prokaryotic cells are microscopic, eukaryotic cells are not

Prokaryotic cells have no nucleus, eukaryotic cells do

Prokaryotic cells do not contain DNA, eukaryotic cells do

Prokaryotic cells are more complex, eukaryotic cells are more simple

Answers

Answer:

Prokaryotic cells have no nucleus, whereas eukaryotic cells have DNA enclosed in a nucleus.  

Explanation:

The major difference between prokaryotic and eukaryotic cells is -Prokaryotic cells have no nucleus, eukaryotic cells do.

Eukaryotic cells are one of the two types of cell types prokaryotic and eukaryotic. There are various structural and functional differences found in them.

Eukaryotic cells are different from prokaryotic cells as:  

the presence of a nucleus that stores DNA surrounded by the nuclear membrane presence of membrane-bound organelles like chloroplast. cell wall may or may not be present cell division is either mitosis or meiosis Eukaryotic organisms have various ranges of organisms either multicellular or single-celled as well.  

Thus, The major difference between prokaryotic and eukaryotic cells is -Prokaryotic cells have no nucleus, eukaryotic cells do.  

Learn more about prokaryotic cells:  

brainly.com/question/7153285

DNA and RNA differ in the following way(s):
1. DNA has a phosphate and RNA does not
2. DNA and RNA have different 5 carbon sugars
3. DNA and RNA have the same nucleotides
4. Both A and C

Answers

Answer:

2

Explanation:

RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose

what can a stars color indicate about its properties

Answers

Answer:

A star's color indicates it's temperature, composition and relative distance from earth

Explanation:

I hope this helps, have a good day

Answer:

A star can be defined by five basic characteristics: brightness, color, surface temperature, size and mass.

Brightness. Two characteristics define brightness: luminosity and magnitude. ...

Color. A star's color depends on its surface temperature. ...

Surface Temperature. ...

Size. ...

Mass

What is gained from each part of aerobic respiration?

Answers

Answer:

Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. ... This results in a net gain of two ATP molecules. Life first evolved in the absence of oxygen, and glycolysis does not require oxygen.

Hope this helps..
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