By using the protein determination techniques such as X-ray crystallography, scientists observe that the protein coded by the gene described exactly how the mutation vested resistance, by opening up the 'active site' where DDT molecules bind to the protein, so more can be broken down.
This signifies that the mosquito can survive by breaking down the toxin into non-toxic substances.
How does resistance develop in the mosquitoes?Mosquitoes usually become resistant to pyrethroids through the mutation of a sodium channel gene that controls the movement of ions across cell membranes.
Mutations in a single gene are enough to make mosquitoes almost completely resistant to the level of pyrethroids used in insecticides.
Might be this is how mosquitoes have come to develop this resistance.
To learn more about resistance click here:
https://brainly.com/question/1851488
In human circulatory system, which blood vessel will has the highest blood pressure?
a)vena cava
b)aorta
c)pulmonary vein
d)pulmonary artery
Answer:
b
Explanation:
aorta is the answer coz it receives blood from the left ventricle which pumps blood at a high pressure
PLEASE HELP!!!!!!
The bicarbonate buffer equation suggests that for every CO2 which reacts with water, we form one H+ and one HCO3-.However, after CO2 is added to the blood in systemic capillaries, I observe a lot more HCO3- in the plasma than H+. what happened to the H+ that was produced?
WILL MARK BRAINLIEST!
Scarlett Witch has telepathic powers. If telepathic powers are x-linked recessive, is it possible that she have a male child that isn't telepathic? Justify your answer by drawing a punnett square.
Answer:
I don't think she could have a kid without powers
Explanation:
Can someone solve this
Answer:
35,c
36,a
37,f
38,e
39,b
40,a
41,a
42,b
Which resource is renewable?
Answer:
hydropower, wind energy geothermal power and many more are examples of resources that are renewable. can I get brainest
Which type of bacteria are more difficult to treat? *
O Gram Positive
O Gram Negative
O All of the Above
QUESTION 20
Which of the following is required for the body to function at an optímum level of health?
a. Highly alkaline level
b. State of homeostasis
c. Highly acidic level
d. None of the answers are correct.
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
e to search
a
s
Answer:
Set priorities.
Manage your time well.
Manage your space well (stay organized).
Plan ahead.
Meditate and be mindful.
Set boundaries.
Take control and take responsibility
what are testestorone
Answer:
Testosterone is the primary sex hormone and anabolic steroid in males. In male humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
Ok I have three questions I really need help with!!
Which renewable resource is not safe for the environment and why?
Compare and contrast prokaryotic and eukaryotic cells
And describe the cell cycle
Thank you if you can answer
Answer: wind power, As with all energy supply options, wind energy can have adverse environmental impacts, including the potential to reduce, fragment, or degrade habitat for wildlife, fish, and plants. Furthermore, spinning turbine blades can pose a threat to flying wildlife like birds and bats.
Prokaryotes are organisms that consist of a single prokaryotic cell. Eukaryotic cells are found in plants, animals, fungi, and protists. They range from 10–100 μm in diameter, and their DNA is contained within a membrane-bound nucleus. Eukaryotes are organisms containing eukaryotic cells.
A cell cycle is a series of events that takes place in a cell as it grows and divides. ... The cell then leaves interphase, undergoes mitosis, and completes its division. The resulting cells, known as daughter cells, each enter their own interphase and begin a new round of the cell cycle. mark brainliest plzz
Explanation:
what is the source of all energy in an ecosystem?
A) recycling of matter
B) solar energy
C) cellular respiration
D) photosynthesis
Explanation:
B)SOLAR ENERGY
I HOPE ITS HEALP
Answer:
B. solar energy
Explanation:
dahil SUN po ung na search ko tas baka solar dahil solar mn ung sun dba?
# CARRY ON LEARNING
HOPE IT HELPS
Which layer of Earth is made up partly of crust and partly of Mantle material?
Answer:
asthenosphere is partly made up of crust and partly made of mantle
hope this helps you☺️☺️
Roberto is color blind. Both of Roberto's parents are color blind. Roberto also has a brother and a sister, but neither have been tested for the color blindness phenotype. Roberto's wife Linda has full color vision. Both of Linda's parents have full color vision. Linda's maternal grandfather (her mother's father) has full color vision, while her maternal grandmother (her mother's mother) is color blind. Linda's fraternal grandfather (her father's father) is color blind, while her fraternal grandmother (her father's mother) has full color vision.
Required:
Based on the pedigree you constructed and information provided, explain the inheritance pattern for this trait. Be sure to identify (A) whether the trait is autosomal or sex-linked, and (B) dominant or recessive, and then (C) explain how you identified the inheritance pattern.
Answer: color blindness is an x linked recessive trait
Explanation:
color blindness is an x linked recessive trait as the pedigree shows the following features:
no skipping of generations
affected fathers have carried to daughters
affected mothers have affected sons
rnai is used for one of the following purposes
A) to clone a particular gene
B) To disrupt a DNA
C) To verify the function of a gene
D) To produce a New gene
Asbestos is a chemical that is sometimes found in older homes. If asbestos is inhaled its particles can penetrate cells and cause changes to the cell's DNA. These changes in DNA are an example of which of the following?
Help plis
Answer:
Mutations!
Explanation:
Changes in a cell's genetic information (DNA) are called mutations! Hope this helps!
Some diseases are diagnosed by looking for antibodies in the patient’s blood. Explain what a positive finding of antibodies means.
Answer:
The patient has/had the disease.
Explanation:
A positive finding means that antibodies were found in the patient’s blood. Antibodies are made when you have a disease in order to help fight off the disease. Therefore, if you have antibodies for a disease, you have or had that disease (Or were vaccinated). Hope it helps :)
TRUE OR FALSE Thyroid hormones increase the sensitivity of the cells to growth hormone.
umm I think that it's true
I’ll mark you as brainliest!
Answer: 3
Explanation:
:)
Answer:
Organ 1
Explanation:
The stomach uses gastric juices/acids to dissolve our ingested food during the digestion process.
do yall think chevy, ford, or dodge is better & why.
powerstroke, duramax, or a cummins?
Answer:
huh i like cumin
Explanation:
Answer:
When it comes to pickups, Ford bests Chevrolet in almost every category. Ford trucks ranked higher for safety, performance, reliability, and interior quality. But while Ford took the lead in most categories, Chevrolet didn't trail far behind in performance and fuel efficiency.
Explanation:
1) What were the main lessons you learned about living things?
2) What were the main lessons you learned about nonliving things?
3) Is there any interrelationship between living and nonliving things?
4) What is the name given to the science that is concerned with the study a
living things?
StMary's a good day for me and you are the kids going ❤️❤️ a good time☺️☺️
Answer:
Im not sure
Explanation:
Im not sure because there could be many different answers
The elements potassium and rubidium are alkali metals.
How do alkali metals differ from other metals?
O A. They have higher densities.
OB. They have higher reactivities.
O c. They have higher melting points.
D. They have higher electronegativities.
Answer:
D
Explanation:
The alkali metals have the high thermal and electrical conductivity, lustre, ductility, and malleability that are characteristic of metals. Each alkali metal atom has a single electron in its outermost shell. This valence electron is much more weakly bound than those in inner shells.
Alkali Metals have higher reactivities. Therefore, option (B) is correct.
Alkali metals, including potassium and rubidium, differ from other metals primarily in terms of their reactivity. Alkali metals are highly reactive and readily react with other elements or compounds, especially water and oxygen. This reactivity is due to their low ionization energies and the tendency to lose their outermost electron to achieve a stable electron configuration.
In contrast, other metals may have lower reactivity or may require more energy to undergo chemical reactions. While the density, melting points, and electronegativities can vary among different metals, the characteristic that sets alkali metals apart is their high reactivity, which is a result of their electron configuration and the ease with which they can form positive ions.
Learn more about Alkali metals, here:
https://brainly.com/question/18534253
#SPJ2
DNA REPLICATION HELP PLEASE
Answer:
TTATGCAGGTCTAAAA
AATTGGCTCAAGTCT
GGGCGCTTATATGT
i think those are the answers :D
Explanation:
please answer!!!! really need to submit this soon!!
Answer:
To my Knowledge and understanding, the name of fluid A is oxygenated Blood or u could simply submit blood. Fluid A does contain red blood cells, namely Hemoglobin. I am not quite sure what fluid B is, but visually it looks like the cytoplasm surrounding cells. According to my knowledge cytoplasm does not contain red blood cells, but rather it contains glucose,sugars and proteins etc.
Hope this helps!
Kind regards
Farah Syed
Explanation:
/-
How can the rate at which bacteria are evolving to be antibiotic resistant be slowed down by humans?
A.
use a variety of different antibiotics
B.
reduce the usage of antiobiotics
C.
apply fewer pesticides to crops
D.
Both A and B
Answer: D. Both A and B
Explanation: Bothe A & B would help with B being the most effective method of slowing antibiotic resistance. Not using antibiotics when not absolutely necessary would be best but when necessary using a variety instead of reliance on a popular few would help.
Describe the characteristics and classification of seedless vascular and nonvascular plants
Answer:
Vascular plants, also known as tracheophytes, are plants found on land that have lignified tissues for conducting water and minerals throughout the body of the plant.
1. These lignified tissues are also called vascular tissue and consist of water-conducting xylem tissue and food-conducting phloem tissue.
2. Vascular tissue forms a central column, also called stele, through the plant axis for the transport of different substances.
3. Vascular plants are said to have a true stem, leaves, and roots due to the presence of vascular tissues.
4. The root is a true root that enables the plant to anchor onto the soil and gets nutrients from it.
5. The leaves are broad and have stomata that work for gas exchange and support transpiration.
6. The stem of vascular plants is multilayered with vascular tissue that helps in the protection and conduction of food and water.
7. The arrangement of these issues might be different in a different group of plants as it depends on the pattern of division of cells.
8. The xylem is composed of non-living matter, tracheids, and vesicles, hardened by lignin that provides a stiff structure to the tissue. 9. The phloem, on the other hand, contains living sieve elements that are not lignified.
10. Vascular plants are capable of surviving on land due to their ability to transport food, water, and mineral to different parts of the plant by creating pressure through the tissues.
11. Besides, they also have several modifications that facilitate their survival on land.
12. Another essential characteristic of vascular plants is that the principal generation phase in these plants is the sporophytic phase where they produce diploid spores.
13. Vascular plants are tall and large in size compared to the non-vascular plants because of their ability to transport necessary substances to all parts of the body via vascular tissue.
14. It is believed that vascular plants are a more evolved version of non-vascular plants and thus came later in the evolutionary history.
15. Vascular plants are divided into two groups; non-seed plants or lower vascular plants or cryptograms and seed plants or higher vascular plants or phanerogams.
16. The lower vascular plants include plants like ferns that although are adapted to survive on land still have some characteristics of their aquatic ancestry. These plants belong to the group Pteridophyta.
17. The higher vascular plants are numerous and extremely diverse and are further divided into different subgroups.
18.Some examples of vascular plants include maize, mustard, rose, cycad, ferns, clubmosses, grasses, etc.
Answer:
Definition of nonvascular plant
: a simple, low-growing, nonflowering plant (such as a moss or liverwort) that lacks specialized conducting channels for transporting water and nutrients
vascular plants have lignified tissues for conducting water and minerals throughout the plant.
Explanation:
3 rules that can identify chemical reactions
Answer:
1)colour change
2) fizzing or bubbling
3)odour change
Explanation:
you can also say temp change, formation of a precipitate or smoke being formed but those are the main 3 i know
help me pls or im going to fail
Answer:
c.
Explanation:
Look closely, for key words. In most questions, they like to sneak hints in there but their quite hard to see! Hope it helps! :) I'm not always accurate.
Answer:
biosphere
Explanation:
The cell knows which amino acids are to be attached to the ribosome during translation by reading the ______________ found on the mRNA
Answer:
The correct answer is - codons.
Explanation:
Each mRNA is made up of the codons that are complementary to the DNA sequence during transcription and once it binds with the ribosome, mRNA strand codes are read by tRNA in triplet code that decides which amino acid would be bind to the ribosome during translation to synthesize the polypeptide chain. For instance, if mRNA has CCG codon then tRNA should have GGC anticodon should have bound.
Describe the role of acetylcholinesterase in stimulation of a muscle fiber.
Answer:
"It is the enzyme that breaks down acetylcholine in the synaptic cleft, ending stimulation of the muscle fiber. -It is the type of receptor found in the motor end plate that binds acetylcholine, initiating an electrical impulse."
Explanation:
Answer That Plzz thank you
Answer:
A
Explanation:
7. Which is most likely an immediate negative effect of consuming alcohol on the body?
a. Increased risk of lung cancer
b. A decrease in immune function
C. A decrease in lung capacity
d. Impaired thinking and judgment
Answer:
d. impaired thinking and judgement
Explanation:
alcohol is a depressant, and heavily affects your ability to coherently think and properly judge.
Answer:
D
Explanation:
because u don't seem to be yourself.