18. How has the use of herbicides affected agricultural productivity?
O A. Fewer crops are organic because of the use of Bt toxin.
B. Fewer pesticides are needed because of parasitoids.
O C. Fewer people are needed to weed because of herbicides.
D. Fewer crops are produced because of herbicides.

Answers

Answer 1

Answer:

B. Fewer pesticides are needed because of parasitoids.

Explanation:

Herbicides are chemicals utilized to manage or command unwanted vegetation. Herbicide employment happens most commonly in row-crop cultivation, where they are employed before or throughout seeding to maximize yield productivity by decreasing other vegetation.  Yields have improved considerably, and, in association with tillage, herbicide use decreases erosion, fuel usage, greenhouse gas discharges, and nutrient run-off, and preserves water.


Related Questions

A zebra cell is just about to replicate its DNA.

What will happen first?


RNA attaches to DNA.

All of the cell’s DNA attaches to proteins.


The DNA folds over on itself to create a dense chromosome.

The DNA unravels to make two strands.

Answers

Answer:

It will create two strands.

Explanation:

DNA always has two strands. Answer is it will create two strands

Goodbye

Answer:

The answer to this question is the DNA unravels to make two strands.

Explanation:

I attached a file of the correct answer for proof to help you guys out.

Hope this helps! :)

Cilia
Click through the images to
answer the questions.
4. Which type of microscope
produced the image of cilia?
5. What type of microscope
would be best for studying cilia

Answers

Answer:

Scanning electron microscope and electron microscope.

Explanation:

Scanning electron microscope is a type of microscope which can produced the image of cilia. Electron microscope  is a type of microscope would be the best for studying cilia because it has higher magnification power i. e.  10,000,000x, which able us to study different parts of cilia so we can say that electron microscope is the right choice for studying cilia.

What is the pH of a 2.4 x 10-5 M
OH-solution?

Answers

Answer: pH = 9.4

Explanation: in water, -log(molar concentration OH-) + -log(molar concentration H+) = 14

-log(H+) is pH

so pH = 14 - -log(OH-)

= 14 - -log(2.4*10^-5)

= 14 - 4.6

= 9.4

Why would mutation of a tyrosine residue to glutamate in the intracellular portion of a growth factor receptor lead to increased tumor formation

Answers

Answer:

this mutation leads to a constitutively active state where the receptor can not be inactivated by dephosphorylation  

Explanation:

Phosphorylation is a posttranslational modification that usually occurs at the side chains of serine, tyrosine and threonine residues, thereby regulating protein function. Phosphomimetic amino acids are substitutions (mutations) able to mimic the phosphorylated form of the protein, resulting in constitutive activation/inactivation of the corresponding protein. In this case, it is expected that the substitution of tyrosine to glutamate gives rise to a constitutively active state of the receptor by replacing tyrosine with a phosphomimetic residue.

Summarize how dead organisms become oil or natural gas (2-3 sentences)

Please do this for me? I will give brainliest when it pops up if you help me! x thx

Answers

Answer:

Petroleum, also called crude oil, is a fossil fuel. Like coal and natural gas, petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria. ... Millions of years ago, algae and plants lived in shallow seas

A large bowl contains a mixture of soil and iron powder. What would be the best way to separate the iron powder from the soil?​

Answers

Answer:

Add magnet to the bowl, cover the bowl, and shake well

Explanation:

Anything with MAGNET

Question 9 of 10
Which process is a form of mechanical weathering?

Answers

Explanation:

abrasion, pressure release, thermal expansion and contraction and crystal growth.

I need help with this question pls answer.

Answers

Answer:

I think its picture B

Explanation:

The F1 mother of these progeny (F2) resulted from a cross between two flies from true breeding lines (P generation). What are the genotypes of these two lines

Answers

The question is incomplete. The complete question is :

In fruit flies, the recessive pr and cn mutations cause brown and bright-red eyes, respectively (wild-type flies have brick-red eyes). The double mutant pr cn combination has orange eyes. A female who has wild-type eyes is crossed to an orange-eyed male. Their progeny have the following distribution of eye colors:

wild-type8

brown241

bright-red239

orange12

500

The F1 mother of these progeny (F2) resulted from a cross between two flies from true breeding lines (P generation). What are the genotypes of these two lines ?

Answer:

prprcn+cn+ and pr+pr+cncn

Explanation:

Progeny is the offspring or descendants of any animal, plant, human or a species.

In the context, it is given that the cn mutation and recessive pr in the fruit flies makes brown and bright red color eyes. And the double mutant of pr and cn combination makes orange eyes. An oragne eye males is crossed with a female having a wild type eyes. Now for this, the F1 mother of the progeny F2 which results from the cross of two flies, the genotypes is " prprcn+cn+ and pr+pr+cncn. "

Is gooseberry monocot or dicot​

Answers

Dicot mark me brainliest please thank you

Answer: dicot

Explanation: I think

How does nuclear power compare to coal, oil, and natural gas?

Answers

Explanation:

Nuclear Has The Highest Capacity Factor

That's about 1.5 to 2 times more as natural gas and coal units, and 2.5 to 3.5 times more reliable than wind and solar plants.

Mike created the following table... what needs to be corrected

Answers

Answer:

The outer core is liquid and the inner core is solid.

Explanation:

This statement is true, the inner core is not liquid it's solid.

The outer core is liquid and the inner core is solid. The opportunity cost of 1 chair is 1/5 table for Mike and 1/3 table for Sandy.

What is cost opportunity?

Opportunity cost of the next best option forgone when one alternative is chosen over other alternatives. In order to determine the opportunity cost of making chairs, divide the number of tables made for each person by the number of chairs.

Mike's opportunity cost in making one chair = 4/20 = 1/5

Sandy's opportunity cost in making one chair = 6/18 = 1 / 3

Petrifcation can be defined as the process in which the organic material of the dead living being becomes fossil by the replacement of mineral deposition in the bony, hard material. Thus, although the body components gets decomposed wiped out due to this process. The body shape of the dead organism remains the same as that was in living.

Therefore, The is liquid and the inner core is solid. The opportunity cost of 1 chair is 1/5 table for Mike and 1/3 table for Sandy.

Learn more about fossil on:

https://brainly.com/question/14988327

#SPJ5

Why are the digestive systems of birds, ruminants and humans different?

Answers

Answer:

Humans and many other animals have monogastric digestive systems with a single-chambered stomach. Birds have evolved a digestive system that includes a gizzard where the food is crushed into smaller pieces.

Explanation:

Answer:

The digestion process in Ruminants is completely different from humans.

This is because the digestion process in Ruminants begins by chewing and swallowing its food. The main diet for these animals includes grass, leaves and other parts of plants.

Help me now please!!!!!!!!

Answers

The answer is a can I have brainly

Please help me, thank you!

Answers

160 Joules

Kinetic Energy= (1/2)(m)(v^2)
Where m is mass and v is velocity or speed

KE= (1/2)(5)(64)
KE= 160 Joules

a sound wave traveling through dry air has a frequency of 16 Hz, a wavelength of 22 m, and a speed of 350 m/s. When the sound wave passes through clouds of nitrous oxide, it’s wavelength changes to 16 m, while it’s frequently remains the same. What is it’s new speed?

Answers

please urgent please help

Which antibody class was produced first in this sequence of events

Answers

Answer:

IgM

Explanation:

........ ............ .

HELP QUICK HELP ILL MARK U BRAINLIST

Answers

Answer:

B or A I think B

Question 3
What does the name of the eclipse tell you?
1.all of the answers
2.which celestial object is getting darker
3.which celestial object is getting lighter
4.none of these answers

Answers

Answer:

i think its number 1

i might be wrong

Explanation:

In kolhbergs conventional stage of moral development moral decisions are based on?

A) nature and nurture
B) society’s expectations and laws
C) trust or mistrust
D) attachment and temperament

Answers

Answer:

b

Explanation:

can someone please help me

Answers

Answer:

A. Tap water is a homogenous mixture and distilled water is a pure substance.

Explanation:

Tap water can be classified as a homogeneous mixture because it contains equal amounts of dissolved minerals and other chemicals that are even throughout the mixture.

In the other hand, distilled water is classified as a pure substance because it contains definite amount of atoms of elements and unique chemical properties that forms water.

Place the following molecules in order of size (smallest to largest): glucose, water, starch. What evidence helped you determine the answer?

Answers

I have a lot to say to my mom that I don’t

4. How does temperature affect chemical weathering?
A. It is an agent of weathering.
B. It affects the amount of oxygen involved in weathering.
C. It affects the rate of weathering.
D. It affects the type of weathering.

Answers

Answer:

C.

Explanation:

It affects the rate of weathering.

24. Four identical rocks four four identical rocks were dropped into a stream and were
washed downstream. Which of the rocks below was prob-
ably transported the least distance.

Answers

rock #3 because it’s one of the bigger ones and it is also a rectangle shape making it more difficult for it to just roll on down

Less distance may be traveled with grains whose sizes are greater and more erratic. This is because as a stream moves downstream, its velocity progressively diminishes, causing the big and irregular grains to settle the first, hence option 3 is correct.

How are sediments transported?

Both a reduction in particle size and rounding of initially angular pieces are effects of the protracted transport of material by water and wind current. The grains get smaller and more spherical the farther they have to travel.

Erosion, transport, and deposition all result in the formation of sedimentary rocks. A sediment's grain size provides crucial details on (1) the agent that caused the erosion/transport of the sediment and (2) the current's speed.

Therefore, as a stream moves downstream, its velocity progressively diminishes, causing the big and irregular grains to settle the first, hence option 3 is correct.

Learn more about the sediments, here:

https://brainly.com/question/16526541

#SPJ2

How to make a girl fall in love with her?​

Answers

Answer:

depends on what she likes. Just be nice i guess

Explanation:

Answer:

I just say do what she want's you to do like if she is sad but she like sweets go get her sweets and flowers

Explanation:

Select all the correct answers.

Why are invasive species considered a threat to native wildlife?

A. They can breed and spread quickly.
B. They consume native species’ food supply.
C. They evolve, and native species don’t.
D. They all have higher genetic diversity than native species.
E. They don’t need resources from the environment as native species do.

Answers

Answer:

B is the correct answer

Explanation:

Answer:

c

Explanation:

Got the anwser right on the test trusttt

does the radiation from the sun to the sand lower the kinetic energy of the sand​

Answers

the radiation from the sun would actually make the kinetic energy higher because the sun heats up the sands atoms making them move faster

Fill in the blanks to complete these sentences about rock characterstics A rock is an of minerals of a rock is a result of its mineral composition Most rocks contain more than one type of The​

Answers

Answer:

More than one t Type of mineral

Answer:

1)aggregate

2)color

3)mineral

Explanation:

Help me please. Due today.

Answers

Answer:

Okay! I will help! what is the question you need help with?

Explanation:

♡♡♡♡

I think it would be A cause that make the most sense. I’m so sorry if I’m wrong

c. Suppose a large population of turtles consists only of two species, snapping turtle and box turtle, but the percentage of the species in the population are unknown. What is the maximum possible value of the diversity index D for the population

Answers

Answer:

[tex]D_m=1/2[/tex]      

Explanation:

From the question we are told that

2 species

Assuming that questions a and be are solved

Diversity index D=2p_1p_2

with [tex]p_1 +p_2 =1[/tex]

Mathematically

[tex]D=2p_1(1-p_1)[/tex]

[tex]D=2(p_1-p_1^2)[/tex]

[tex]D=2({\frac{1}{4} -(p_1-1/2)^2}[/tex]

Therefore

[tex]D=\frac{1}{2} -2(p_1-1/2)^2[/tex]

Giving

[tex]D_m=1/2[/tex]      

[tex]p_1=1/2[/tex]

Other Questions
if two fair coins are tossed simultaneously, what are the chances of both coming up 'heads'? A line with a slope of 1/3 passes through (-5,r) and (4,1).To make this work correctly, the value of r= Write an equation of the line with a slope of-and y-intercept of -6.y can some one please help me please (4x^2y)^2 2(7(3))^4 Judith received the following amounts of money for doing chores: $5, $7, $3.50, $5, and $8. Give the mean, median, mode, andrange for her earnings. Which process begins the formation of sedimentary rock?the movement of sedimentthe cementation of rock sedimentthe breakdown of rock into sedimentthe buildup of sediment in one location 4(x-5)=10(x-10)solve for x 100 points!!!!!!!!!!!Read the passage from "The Lady, or the Tiger.This semi-barbaric king had a daughter as blooming as his most florid fancies, and with a soul as fervent and imperious as his own. As is usual in such cases, she was the apple of his eye, and was loved by him above all humanity. Among his courtiers was a young man of that fineness of blood and lowness of station common to the conventional heroes of romance who love royal maidens. This royal maiden was well satisfied with her lover, for he was handsome and brave to a degree unsurpassed in all this kingdom, and she loved him with an ardor that had enough of barbarism in it to make it exceedingly warm and strong. This love affair moved on happily for many months, until one day the king happened to discover its existence.Which conclusion does the passage best support?The princess is strongly barbaric, so she will choose the tiger.The princess loves the young man enough to choose the lady.The king is semi-barbaric, so he will make sure the young man gets the tiger.The king loves his daughter strongly enough that he will pardon the young man. Work out angle BXC. Give a reason for each angle you work out. What are two uses of carbon? PLZ help ILL GIVE BRAINLEIST Name the six Southern states mentioned by the Rev. Dr. King Jr. in his speech?(please repy soon thank you!) Choose the sentence that is grammatical correct written with the verb tener and correct time Using social media, such as text messages and status updates, has helpedusers become moreoA. wordyO B. succinctO C. formalO D. slow A number pattern was created by dividing the previous term by 3. If the starting value for the pattern was 135, which of the following shows the resulting pattern? A. 135, 45, 30, 5... B. 135, 45, 15, 5... C. 135, 45, 15, 2... D. 135, 45, 30, 25... Find the measure of each numbered angle Need done ASAP 25 points!!!!!!!! How many congressional districts and electoral votes does Minnesota have? What are some properties we can use to describe matter