Answer:The ultimate source of all genetic variation is mutation. Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele. Recombination also can create a new DNA sequence (a new allele) for a specific gene through intragenic recombination.
Explanation:
Comprehension Questions:
Available in 01:28
Photosynthesis and cellular
respiration are
cells.
that ocCur in
))
O chemical reactions
O physical reactions
Answer:
Chemical reactions
Explanation:
which wall structures are found in plant cells but not in animal cells check all that apply
cell wall
cell membrane
endoplasmic reticulum
nucleus
chloroplasts
mitochondria
Answer:
cell wall, chloroplasts
Explanation:
no explanation, just the correct answer
Answer:
Options: A and E
Explanation:It was correct on edg 2021, Have a blessed day.
What are the possible benefits of hybridization?
Answer:
Advantages of hybridization include passing along favorable traits and prolonging the survival of a threatened or endangered species, but a disadvantage is that hybrid animals have more difficulty finding mates and successfully breeding. Hybridization occurs naturally and through human initiation.
Why is your body going through physical and chemical changes?
Answer:
(MY) body is only going through chemical changes because of my digestive juices, my saliva, and brain functions.
Explanation:
{MY} body isn't going through many physical changes other than my body slowly breaking down on a nuclear level every day slowly just like everybody else that's why nobody dies of old age, its just the teardown of their body eventaully giving out
The diagram below represents a top view of a river a emptying into an ocean bay. A - B is a reference line along the bottom of the bay. Which characteristic would most likely decrease along the reference line from A to B? (1) the amount of salt in solution (2) the size of the sedi ments (3) the density of the water (4 ) the depth of the water
Answer: D
Explanation: it’s the size of the sediments
All living things respond to external stimuli. Explain.
..
Explanation:
your lucky you did have a online lessons early
Answer:
All living things respond to external stimuli .Explain All living beings respond to stimuli because they all have some or other form of control and coordination system in their bodies. This system which may be nervous system or a hormonal system which is responsible for responding to the stimuli.Explanation:
I hope it helps ❤
I Will Give BRIANIEST
A scientist tests the water in a local pond and finds that it has a pH of 7.9.
What is true about the water sample?
Choose 1 answer:
(Choice A)
A
It is basic.
(Choice B)
B
It is acidic.
(Choice C)
C
It is neutral.
(Choice D)
D
It is both basic and acidic.
Answer:
it is Basic brooooooo. No B NOT C AND NOT D. oNly A
The answer is A. The ph of regular water is about 7.0 or so. so since it's 7.9 it means it's basic. You're welcome :)
Rejection occurs when the recipient’s immune system recognizes the donor tissue as foreign
5. What would be the effect if a gene has a mutation in the location of the stop codon? (4 points)
During translation protein synthesis won't stop when it should so amino acids will continue to be placed and the peptide will be bigger.
Answer:
In genetics, a point-nonsense mutation is a point mutation in a sequence of DNA that results in a premature stop codon, or a point-nonsense codon in the transcribed mRNA, and in a truncated, incomplete, and usually nonfunctional protein product.
Genes Influence an organism's tralts by coding for:
Answer:
production of proteins
Explanation:
CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU
Answer:
The answer is
A. methane
Lister cultured the bacteria responsible for milk spoilage.
True
False
Answer:
True
Explanation:
Order the levels of organization of living things. (Order the levels starting from top to bottom with the smallest at
the top)
biome
species
biosphere
population community
ecosystem
WILL GIVE BRAINLIEST
Which two structures are found at the outside of the cell?
Answer:
All cells share common components: (1) a plasma membrane, an outer covering that separates the cell's interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell.
When equipment malfunctions, a(n) _____ needs to be initiated.
A) Notification
B) Paper Work
C) Alarm
D) Work Order
Answer: Alarm
Explanation:
When equipment malfunctions, an alarm should be initiated to bring the malfunction to the attention of the relevant personnel.
This will ensure that whatever adverse effects the malfunction could have caused is mitigated and the machine can be attended to on time to prevent further damage.
i need some help here now ASAP
Answer:
None of those, its called Soul Horizons
Explanation:
Answer:
Soil Layers also know as Soil Horizons.
Explanation:
I need this to finish break out room. Unscramble and enter the escape word hint it is what you do when you eat. Letter are ell ts gi
A n s w e r:
Digest, maybe
Answer:
u got snap, or ig since u go to my school,and we can help eachother with our work it u want
In the testes, sperm cells replicate and differentiate in the _________. Question 2 options: urethra septum tunica albuginea seminiferous tubules ductus deferens
Answer:
seminiferous tubules
Explanation:
Seminiferous tubules are coiled tubes where sperm cells are produced by a process referred to as spermatogenesis. These tubes are located in the testes or testicles (i.e., male reproductive glands/gonads). Each testicle contains approximately 250 compartments known as testicular lobules, while each testicular lobule has 1 to 4 seminiferous tubules which converge to form a single straight tubule. Once sperm cells mature, they travel through the seminiferous tubules to be stored in a coiled tube called the epididymis.
Which of these are characteristics of all three main groups of worms? Check all that apply.
They lack nerve cells.
They can reproduce sexually.
They display bilateral symmetry.
They have a single tissue layer.
They are invertebrates.
Multiple choice
They lack nerve cells, They display bilateral symmetry, They are invertebrates. A, C, E
Answer:
they can reproduce sexually
they display bilateral symmetry
they are invertebrates
Explanation:
PLEASE ANSWER.
Purple is dominant to white. A flower with the alleles PP (purple) is
crossed with a flower with alleles pp (white). What is the percent chance
that their offspring (babies) will be purple?
0%
50%
100%
Answer:
100% P is dominate there for all matches will be Pp this mean it will either be purple or a mixture of both (pink)
Explanation:
What are the components of blood
Explanation:
Blood is a specialized body fluid. It has four main components:
plasma, red blood cells, white blood cells, and platelets.Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues.
What is the relationship between Distance and average number of species?
Answer: The relationship between species and distance is that more distance or space has more species and less space has less species.
Explanation:
It can easily be understood by taking the example of the island in such a way that the larger islands contains more species than smaller islands.
There are a diversity of species seen in a bigger islands, more in number and more in variety.
It is very important for the studying the various species and its conservation, protection and other factors.
So, more is the distance , more will be the number of species.
What is the medical term for the process or procedure that destroys or inhibits disease-causing microorganisms to prevent infection:
Answer: Sterilization.
Explanation:
Sterilization is the process that kills, or deactivates all forms of life so then a product is considered free of viable microorganisms. This process must be designed, validated and carried out to ensure that it is capable of eliminating the microbial load of the product.
Since sterility cannot be demonstrated without causing the complete destruction of the products, sterility is considered when the probability of a product being contaminated is acceptably remote. A critical product is considered sterile when the probability of a microorganism being present in an active or latent form is equal to or less than 1 in 1,000,000 (sterility safety factor 10^-6).
Agents that kill microorganisms are called microbicides or more commonly called "germicides". If the agent kills bacteria, it is called a bactericide. And if it kills fungi, then it is called a fungicide. It is important to consider than after an exposure of the sterilized object to the air or its surroundings, it will have become contaminated again with microorganisms.
Examples of sterilization include physical methods and chemical methods. Physical methods include:
Wet heat (in steam autoclave) Dry heat (in sterilization oven) Radiation (gamma radiatio, electron beam, X-ray, ultraviolet, microwave, white light)Chemical methods include a variety of chemicals in liquid and vapor form, for example:
Hydrogen peroxideChlorine dioxideOzone gasesEthylene oxidePropylene oxidePeracetic acid
2. Why do you need to chew the food well?
why do you need to chew the food well
Answer:
Because if that's how we get the full benefit from foods. Also, when you chew your food properly, your body releases digestive enzymes in the stomach that help to break down food so that your body can convert it into energy.
Which nitrogen base sequence is the partner of C-A-T-C-G-A?
g- t- a- g- c - t or if ur trying to find the mRNA things it’s g- u- a- g- c- u
it depends really but i think this is the answer
Explanation:
Which description represents a medium?
a - energy that moves with a wave
b-midway point through a wave
c- a wave that can travel through a vacuum
d- material through which waves can travel
name two types of silkworms that are fed on mulberry leaves
If the sodium/potassium ion pump were to stop functioning, what would eventually happen to the concentration gradients of sodium and potassium ions across the membrane
Answer:
The correct answer would be - concentration gradient will reach to equilibrium.
Explanation:
If the Na+/K= ion pump stops working which is to pump the sodium and potassium ion across the cell membrane. The movement takes place in 3:2 ratio with the help of ATP.
Eventually, the concentration gradients of sodium and potassium would be equal and found equilibrium across the membrane. This equilibrium would be reached due to passive transport that occurs in either direction across the membrane.
7. What two reactants of photosynthesis are used for the light reactions?
a. Carbon dioxide, water
b. Carbon dioxide, sunlight
C. water, sunlight
d. glucose, sunlight
Answer:
sunlight, carbon dioxide, water
Explanation:
7. Which of these are characteristics of viruses? (Select all that apply.)
not living organisms
are single-celled
are decomposers
cannot reproduce without a host
Answer:
I believe the answers are not living organisms and cannot reproduce without a host.
Explanation: