Answer: The drug abuse is influenced by the environment and exerts influence on the gene expressions.
Explanation:
The genetic make up of the person is decides, which genes will be expressed and develop a trait in an individual. But this genetic expression can be influenced by the environmental factors like food, exposure to sunlight, and others. This study which relate environment with the genetic make up is called epigenetics. No person is drug addict by birth but the consumption of drug can influence the genetic make up and traits in a abuser. So here, the environment is influencing the genetic basis of a abuser.
Which of the following explains why carnivores have simpler stomachs than herbivores?
o Meat is easier to digest than plant materials.
o Meat-eaters require fewer calories than plant-eaters.
O Herbivores are able to absorb nutrients more efficiently.
o Carnivores are more physiologically advanced than herbivores.
Answer:
Meat is easier to digest than plant materials
Explanation:
Plant material, such as cellulose, is often tough and challenging to digest. This would mean having complex stomaches would be a favorable digestive system for all herbivores. Carnivores do not need such intricate stomachs, as meat is easier to digest.
Answer: THE ANSWER IS A
Explanation: just did a test on it
what are the main function of irrgation systems
Answer:
Irrigation helps to grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of less than average rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil consolidation.
The weather conditions at a given place over a long period of time is known as __________.
Answer:
Climate
Explanation:
Weather is like day to day, but climate is the average weather.
For example, the Climate in South Texas is hot, humid in the summer.
Did this help!?!
Answer:
Climate
Explanation:
Which of the following statements about signal deactivation is false?
A. Hormone response systems respond to very small changes in hormone concentration.
B. Second messengers are short-lived because cytoplasmic enzymes convert them to their inactive forms.
C. When G proteins hydrolyze GTP to GDP, they become inactive and halt production of second messengers
D. Phosphatases terminate phosphorylation cascades by adding phosphate groups to proteins in the phosphorylation cascade.
Answer:Phosphates terminate phosphorylation cascades by adding phosphate groups to proteins in the phosphorylation cascade.
Explanation:
Which system is the digestive system least connected to?
A)Nervous
B) Integumentary
C) Circulatory
D) Excretory
The system that the digestive system is least connected to is the Integumentary which is option B.
In the body, food is broken down into simple, soluble and diffusible substances by mechanical and chemical means through the digestive system.
The alimentary tract of the digestive system is connected to the nervous system. This is because the autonomic nervous system supplies nerves to the alimentary tract and this leads to:
Either increase or decrease of muscular activity, especially peristalsis.Either increase or decrease of glandular secretion.The circulatory system is connected to the digestive system through blood supply from the arteries and blood drainage through the veins.
The excretory system is connected to the digestive system. this true because the food substances that have been eaten but cannot be digested and absorbed are excreted from the alimentary canal as faeces by by the process of defecation.
The Integumentary system in an external part of the body which is involves protection of the body. it dosen't play any role in the digestive system and so its least connected to it.
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Many psychologists are suspicious of memories retrieved through hypnosis because:
endospores form during ____.
a) binary fission
b) respiration
c) sunlight hours
d) harsh environmental conditions
Answer:
A binary fission
Explanation:
Hope this helped
what are 5 factors needed to support life(actually list the please)
Explain what an inhibitor is and what it does
Explanation-Answer:Enzymes can be regulated by other molecules that either increase or reduce their activity. Molecules that increase the activity of an enzyme are called activators, while molecules that decrease the activity of an enzyme are called inhibitors.
If 10 cells undergo the cellular process of meiosis, how many daughter cells will result after Telophase II?
a. 25
b. 5
c. 10
d. 40
Which of the following completes the sentence below by describing an important result of meiosis?
A single cell divides into ___________ daughter cells.
2 identical
2 unique
4 unique
4 identical
A.4 identical
B.4 unique
C. 2 unique
D. 2 identical
Answer:
d. 40, B.4 unique
Explanation:
If 10 cells underwent meiosis, the result would be 40 daughter cells. This is because a cell that goes through meiosis goes through two divisions resulting in 4 daughter cells. This is because cells that undergo meiosis are gametes so they need to have half the number of chromosomes as the cells that go through mitosis.
The resulting daughter cells are unique, unlike the cells that go through mitosis. This is because the chromosomes in the cells experience something called crossing over during Metaphase I. Crossing over is when the chromosomes can swap pieces of DNA when next to each other. Cells in mitosis don't go through crossing over and are therefore identical.
when you cut a stem a watery liquid will come out. why?
the awsner? and why it is the right one
Answer:
Active transport
Explanation:
Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.
1. An ecosystem is best defined as a community of living things interacting with the ________ environment
Answer:
Explanation:
non living thing
Which of the following best describes how amino acids affect the tertiary structure of a protein
Answer:
B. The interactions of the different R group with other R groups and with their environment determine the tertiary structure of the protein
Explanation:
Protein is one of the four major biomolecules in living systems. Structurally, proteins consists of four levels namely: primary, secondary, tertiary and quartenary. The primary structure constitutes the AMINO ACIDS monomer that makes up the protein.
According to this question, the tertiary structure of the protein is formed as a result of the interaction of different R groups with one another and their environment. The R group is one of the four parts of the amino acid structure which is different for all amino acids.
These R groups interact in such a way that forms different bonds such as hydrogen bonds, disulphide bridges, hydrophobic & hydrophilic interactions etc, which leads to the tertiary structure of proteins (three-dimensional shape).
Answer:
B. The interactions of the different R -groups with other R -groups and with their environment determine the tertiary structure of the protein.
Explanation:
Explain whether the top or bottom layers would be the oldest layer of sedimentary rock.
explain your answer.
Answer:
Because sedimentary rock forms in layers, the oldest layer of undisturbed sedimentary rock will be on the bottom and the youngest on top. If the rock layers are bent, they may no longer be in order from oldest to youngest.
The bottom layer would be the oldest layer of sedimentary rock as sediments deposited earlier will be present at the bottom.
What are sedimentary rocks?They are the types of rocks which are formed as a result of accumulation of minerals or organic particles at the surface of the earth.Sedimentation is the name given to a collective process which cause the particles to settle.
The study of sedimentary rocks is useful in civil engineering and as important sources of coal, fossil fuels and ores.The color of sedimentary rock is often determined by iron content and sometimes due to the presence of organic matter.
They are classified based on origin in to 4 types which are clastic, biochemical ,chemical and other sedimentary rocks.While based on composition they are classified as siliciclastic,carbonate ,evaporite,organic rich,siliceous ,iron-rich and phosphatic sedimentary rocks.
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what is kwaishokor and its causes?
Answer/Explanation:
Kwashiorkor is a severe form of malnutrition that is caused by an extreme protein deficiency. It is rare is developed countries, but more commnon in areas where food supply and hygeiene are issues. It is much more common in children than in adults.
It causes swelling under the skin due to the retention of fluids causing a prominent 'pot belly'. It also shows reduced muscle mass, skin problems, infections, brittle hair and nails. It can be fatal.
What do you think is the most practical method of processing fruits and vegetables? Why?
Answer:
eating them
Explanation:
or throw them away
Is the grass that grows in most lawns an annual biennial or perennial
The grass that grows on most lawns is annual biennial.
Answer:
perennial grasses
Explanation
How is a savanna a natural biome?
Answer:
The savanna biome, which is a type of grassland biome, consists of areas of open grassland with very few trees. There are two kinds of savannas: tropical and semi-tropical
Explanation:
Describe what happened when the Paramecium populations were mixed in the same test tube.
Answer:
When grown individually in the laboratory, they both thrive. But when they are placed together in the same test tube (habitat), P. aurelia outcompetes P. caudatum for food, leading to the latter's eventual extinction.
Explanation:
I hope you Understand the answer
Read the following sentences: "Just like you can't play football by yourself, 2 points
a tissue cannot do anything by itself. It teams up with other tissues, and
together, they perform the body's activities. So, a group of tissues team
up to form your nose and help you smell. Other tissues in your pancreas
help you digest food. So, each organ performs its specific function
because of the tissues that constitute it." As used in this sentence, what
does the word "constitute" most nearly mean? *
take away from something
give something energy
make up the parts of something
change in shape or size
Answer:
Constitute means like make it work/control, i think. Im pretty sure
Which statement is true? a. Earth’s revolution is circular. b. Earth’s revolution is elliptical. c. Earth’s distance from the Sun is constant. d. Earth’s average distance from the Sun is 2 astronomical units.
Answer:
B
Explanation:
Which is an organism with an integumentary system?
O A) mouse
OB) amoeba
O C) bacterium
OD) paramecium
Answer:C
Explanation: bacterium
Why do many desert plants have small leaves?
O Deserts are cold and small leaves help hold in heat
O Leaves that have a small surface area lose less water
OSmall leaves protect desert plants from pollution
OSmall leaves protect desert plants from animals that eat plants
small leaves protect desert plants from animals that eat plants.
Answer:
Small leaves protect desert plants from animals that eat plants
Explanation:
Small leaves protect desert plants from animals that eat plants
Which of the following carbohydrates CANNOT be digested in our bodies? starch
maltose
cellulose
Answer:
Cellulose
Explanation:
Humans don't have enzymes that can break down cellulose.
1.) The stage in mitosis in which chromosomes replicate themselves.
A. Anaphase
B. Metaphase
C. Prophase
D. Telophase
2.) The stage in mitosis that results in two new daughter cells being formed.
A. Anaphase
B. Metaphase
C. Prophase
D. Telophase
3.) The chromosomes like up in the middle of the cell during this stage.
A. Anaphase
B. Metaphase
C. Prophase
D. Telophase
4.) The process where a pair of chromosomes pair up and exchange genetic material.
A. Crossing over
B. Gamete cells
C. Replication
D. Reproduction
5.) In Meiosis II the cell division begins with how many daughter cells?
A. One
B. Two
C. Three
D. Four
6.) Which is NOT true of Meiosis?
A. Meiosis starts with half the number of chromosomes as Mitosis.
B. The genetic offspring are exactly like the parent cell.
C. There are 23 chromosomes from each parent cell.
D. Meiosis goes through 2 stages of division, Meiosis I and II.
Answer:
CDBABB
Explanation:
I think
There are four stages of mitosis. They are:
Prophase MetaphaseAnaphase, and TelophaseMitosis is simply known as a type of asexual reproduction that takes in body cells and it is where one cell divides to form two identical daughter cells.
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The main difference between the water cycle and the other chemical cycles is that water
never changes its structural form (H2O) .
is much slower than the other cycles.
creates completely new substances.
is made from matter that has been here since the world was formed.
Answer:
The answer is A.
Explanation:
Other cycles change their structural form often, but water does not change it's structural form in the water cycle, which is H2O so that is one main difference between the water cycle and oither checmical cycles. So, your answer is A.
The main difference between the water cycle and the other chemical cycles is that water never changes its structural form (H2O). Thus, the correct option for this question is A.
What is the water cycle?The water cycle may be defined as a type of biogeochemical cycle that significantly involves the gradual and continuous movement of water and its derivative products within the Earth and atmosphere.
The water cycle remarkably consists of three major processes. They are as follows:
Evaporation: a process through which a liquid converts into gas.Condensation: a process through which gas converts into liquid.Precipitation: a process through which liquid water falls on the earth's surface.The most important concept of the water cycle is that the structural form of water remains constant and the same throughout the process. This property of water differs from other chemical cycles because such cycles involve the alteration in their fundamental component.
Therefore, water never changes its structural form (H2O) is the main difference between the water cycle and the other chemical cycles. Thus, the correct option for this question is A.
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Is liking Marvel nerdy/dorky/geeky???
Answer:
No cause the people that like it are cultured .
Explanation:
:)
Answer:
nah its the 21st century its normal. if it was like the 60's then yeah it would if you were like really in love with it.
Explanation:
Which carbon is recycled though living organisms the atmosphere and other parts of the biosphere
Answer:
carbon monoxide
Explanation:
living organisms, the atmosphere and other parts of the biosphere recycle carbon monoxide.
hope that helps :)
Answer:
Organic carbon
Explanation:
A major component of all living organisms on earth
At which points (A, B, C, or D) in the curve is light a limiting factor?
Answer:
D
Explanation: