how do depressants affect the central nervous system
Answer:
Depressant substances reduce arousal and stimulation. They do not necessarily make a person feel depressed. They affect the central nervous system, slowing down the messages between the brain and the body. They can affect concentration and coordination.
Explanation:
Refer to the microscopic photos below.
Which cell is an onion cell and which is a cheek cell, and why?
A is a cheek cell slide because it is colorless, has a nucleus, and a cell membrane. B is an onion cell slide because it has color, has a nucleus, a cell membrane, and a cell wall.
B is an onion cell slide because it shows each cell with a nucleus, cell membrane and cell wall. A is a cheek cell slide because it shows a cell slide that does not have a cell wall, only a cell membrane as its outermost layer.
B is a cheek cell slide because it has a nucleus, a cell membrane and a cell wall as its outermost layer. A is an onion cell slide because it has a nucleus, a cell membrane and no cell wall.
A is an onion cell slide because it shows each cell with a nucleus, cell membrane and cell wall. B is a cheek cell slide because it shows a cell slide that does not have a cell wall, only a cell membrane as its outermost layer.
Answer:
Acellis the onion cell and B cell is the cheek cell because A cell has white and rectangular cell however B cell is infinite shaped and was definitely a cheek cell
Explanation:
MARK AS BRAINLIEST IF IT WORKS FOR YOU
Is it possible for a blood type B parent and a blood type A parent to have a blood type O child?
A. Yes
B. No
Answer:
yes
Explanation:
you have your own chromosomes so that's how
Answer:
no
Explanation:
B blood type. But someone who has a B and an O version only makes the B protein. They are B blood type but can pass the O onto their kids. So two B parents can make an O child if both parents are BO.
PLEASE HELP!! Easy 10 points!!
Answer: I am pretty sure is A!
Viruses, bacteria, fungi, and parasites are all different types of infectious agents that may cause disease. What do these agents have in common?
A.
They can all be spread from one organism to another.
B.
They can all be prevented with a vaccine.
C.
They can all be treated with an antibiotic.
D.
all of these
Answer:
Single celled? probably
Answer:
They can all be spread from one organism to another.
Explanation:
the correct answer is they can all be spread from one organism to another because of the process of elimination
what temp is the coldest ? marking brainliest
If the DNA sequence is --- AAA TAT CCG TAG CAA ATG, write the mRNA sequence, tRNA anticodon sequence, and the six amino acids for this.
adenine(A) binds with uracil(U)
Thymine(T) binds with Adenine(A)
guanine(G) binds with cytosine(C)
The complementary mRNA, which contains the codons is
UUU AUA GGC AUC GUU UAC
The complementary tRNa , which contains the anticodons is
AAA UAU CCG UAG CAA AUG
The six aminoacids are
phenylalanine-isoleucine-glycine-isoleucine-valine-tyrosine
The bases tend to exist as a pair in the DNA’s double helix structure. The bases are bonded by hydrogen bonds.
Their bonds are mentioned as follows:
Adenosine (A) is paired with thymine (T) Cytosine (C) is paired with guanine (G)However, the base thymine (T) is present only in the nucleotide of DNA and the base uracil (U) is present only in the nucleotide of RNA.
Based on the understanding of the nucleotide and central dogma concepts, the following sequences are determined:
DNA Sequence: AAA TAT CCG TAG CAA ATGmRNA Sequence: UUU AUA GGC AUC GUU UACtRNA anticodon: AAA UAU CCG UAG CAA AUGSix amino acids: PHE ILE GLY ILE VAL TYRSix amino acids are namely Phenylalanine, Isoleucine, Glycine, Isoleucine, Valine, and Tyrosine.
Thus, the DNA sequence is used to determine the other RNA sequences and amino acids.
Learn more about DNA sequence here:
https://brainly.com/question/22662872
Trees that lose their leaves during winter are called
A. Deciduous
B. Fern
C. Herbacious
D. Woody
E. Evergreen
Answer:
a. deciduous
Explanation:
hope this helps :) have a great day.
Which of the following is NOT true about DNA?
O It is made up of nucleotides
O It creates energy for the cell
It stores and processes information in the cell
O It makes up the genes which contain genetic material
When the genetic material found within an offspring is diverse, what type of reproduction is responsible?
a
Sexual reproduction, because the genetic material comes from both parents
b
Sexual reproduction, because the genetic material comes from one parent
c
Asexual reproduction, because the genetic material comes from both parents
d
Asexual reproduction, because the genetic material comes from one parent
Answer:
sexual reproduction, because the genetic material comes from both parents.
Explanation:
The sperm and egg produced contain different combination of genes
If a cell normally has 32 chromosomes, what would be the results of going through mitosis?
Answer:
For mitosis, the DNA content of the daughter cells and the mother cell will always be identical. Since the number of cells have doubled, so has the DNA. The 16 chromosomes in the mother cell will be duplicated, then the duplicates split and evenly divided into the daughter cells. The 16 chromosomes in each daughter cell will be non-duplicated at first.
Sickle cell anemia is a mutation that results in abnormally shaped blood cells. Which two of the following molecules are changed as a result of this mutation?
lipids
mRNA
Sugars
Pigments
Protein
Sickle cell anemia is caused by a single letter mutation so transcription will lead to synthesis of a different mRNA molecule . The different mRNA molecule will lead to a different protein where a single amio acid is different(there is valine instead of glutamic acid)
What type of molecule is being shown?
Answer:
a carbohydrate
Explanation:
CH2OH is structure of a carbohydrate.
Please help me i need this its due today 12/16/20 at 11pm and i have other work please (picture provided) and tell me if the conclusion is right please
Answer: I remember dong this back in October !
Explanation:
Ok so boom....
Control - Only mice near the radio
Independent - Amount of radio wave exposure
Experimental - Mice near the radio
Dependent - Change in strength
Hope that helps
If a root cap was damaged, how might this negatively affect the plant? Explain your reasoning.
how is the apparent movement of stars and planets different from their actual movement? what causes this difference?
Answer:''For stars, almost all apparent motion comes from reflex motion, because they are so far away that their intrinsic motion appears very small. For planets, apparent motion in the sky comes from a combination of their intrinsic motion (around the Sun) and their refle
Explanation:
explain the term metemorphosis
Answer:
Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation.
Which type of microscope uses a beam of electron to produce two-dimensional images of a cells surface?
Answer:
scanning electron microscopy (SEM)
Explanation:
I'M SORRY IF YOU KEEP SEEING ME BUT MY CLASSES END TOMORROW AND I NEED TO GET EVERYTHING DONE TONIGHTTTTT T^T
Answer:
I believe its b im not sure tho
Natural and manmade events that slow or stop population growth are __. *
Life History Patterns
Population density
Demographics
Limiting Factors
Answer:
Limiting Factors
Explanation:
I looked it up for ya! :D
what do the arrows in a food chain represent
Answer:
Essentially, it means that organisms must eat other organisms. Food energy flows from one organism to another. Arrows are used to show the feeding relationship between the animals. The arrow points from the organism being eaten to the organism that eats it.
Explanation:
brainliest please?
What is true about active transport?
Select all that apply.
O It is transport against a concentration gradient.
O It is transport that does not require energy.
O It is transport that requires energy.
O It is transport with a concentration gradient.
The statements that are true about active transport are “ It is transport against concentration gradient” and “ It is transport that requires energy”. Hence, Option A and C are the correct answers.
The common type of transport used to explain carrier-mediated transport is active transport and facilitated diffusion. Active transport is explained as follows:
It is a transport type in which substances including glucose, amino acids, and ions are transported across the region of the biological membrane from the region of lower concentration to the region of higher concentration This transport takes place against the concentration gradient Thus, it requires energy in the form of ATP to pass molecules against the concentration gradientThus, we can conclude that the active transport takes place against a concentration gradient and it requires energy. Hence, Option A and C are considered correct answers.
Learn more about active transport here:
https://brainly.com/question/19098496
Mitosis Notes
Biology
Interphase
• DNA is _________________ (# of chromosomes doubles)
• DNA appears as ______________________ (chromatin) at the start, but change to __________________________ at the end of this phase.
Prophase
• __________________________ (cell begins to divide)
• ___________________ appear and begin to move to __________________ ________________________ of cell (only in animal cells)
• ____________________________ form between the poles (made of microtubules)
• ____________________________ starts to disappear
Metaphase
• ________________________ attach to the spindle fibers at the ________________ of the cell.
Anaphase
• ______________________________ when the ____________________________ and begin to move to opposite ends of the cell (spindle fiber ___________________).
Telophase
• ______________________________________
• Chromosomes appear as ________________________
• Spindle fibers _______________________ and disappear
Cytokinesis
• Cell membrane moves inward to create __________________________ - each with its own nucleus with __________________________
Control of the Cell Cycle
• Controlled by enzymes called _________________ and _____________________________ _______________________
1. ________________________________ (G1): decide whether the cell will divide
2. ________________________________ (G2): checks DNA replication
3. ________________________________ (M): triggers exit from mitosis
Cancer
• ___________________ division of cells
• Cancer cells ______________________________ to the body’s control mechanisms.
Apoptosis
• Programmed ______________________________
• Cells that are no longer _____________________
• _________________ fingers and toes
• __________________ cells
• _________________ leaves
Stem Cells
• _______________________ cells that can be programmed to develop into ________________________ cells
• ______________________ - 100-150 stem cells
• Adult stem cells – also called __________________ stem cells
Answer:
the firat one is 24 i think....
blood enters on the left side of the heart through the_____ and enters the left atrium. Then passes through the_____ to enter the left ventricle 
Blood enters on the left side of the heart through the pulmonary veins and enters the left atrium. Then passes to the mitral(bicuspid valve) to enter the left ventricle.
Blood is a fluid component of the circulatory system that is very vital for transporting oxygen and nutrients in the body system. It comprises cells suspended in plasma.
The correct answers for the blanks are:
Blank 1: Pulmonary veinsBlank 2: Bicuspid valveThe blanks can be explained as:
The left side of the heart has an atrium that gets the oxygenated blood from the lungs through the pulmonary veins.Oxygenated blood from the left atrium flows to the left ventricle.Blood from the left ventricle flows to the aorta that distributes the oxygenated blood to the body parts.To learn more about the path of the circulatory system follow the link:
https://brainly.com/question/7184632
What is the definition of metastasize
Answer:
Spread to other sites in the body by metastasis.
Cancer cells that leave the primary tumor and travel through body either through blood stream, limfatic system or tissues to form secondary tumors.
A student conducts an experiment to determine how the amount of water given to a plant affects its growth. Which of the following is not a constant or control for this experiment?
a. the type of plant
b. the amount of soil
c. the amount of water
d. the amount of time in the sun
Please select the best answer from the choices provided A B C D
Answer:
Its C
Explanation:
Which statement compares how the euglena and volvox obtain food?
A. Both the Euglena and Volvox use an oral groove to obtain food.
B. Both the euglena and volvox use chloroplasts to obtain food through
photosynthesis.
C. The Euglena obtains food through photosynthesis, while the Volvox
uses pseudopods which surround its food.
D. The Euglena obtains food using pseudopods which surround its food,
while the Volvox obtains food through photosynthesis.
Answer:
Which statement compares how the euglena and volvox obtain food? I think it's A
Answer:Both the Euglena and Volvox use an oral groove to obtain food.
What are each organelles labels on this diagram?
most superior part of the
sternum
Answer: manubrium
Explanation:
What causes a rainbow?
Answer:
A rainbow is caused by sunlight and atmospheric conditions. light enters a water droplet, slowing down and bending as it goes from air to denser water. The light reflects off the inside of the droplet, seperating into its component wavelengths-or colors when light exits the droplet, it makes a rainbow
