i need help writing a LAB REPORT about NATURAL SELECTION

(plus i don’t know what exact subject it is so i’m sorry if it’s the wrong subject)

Answers

Answer 1

Answer:

Translate from Ukrainian.

У цей приклад я візьму селекції пшениці. Коли ми будемо говорити про селекцію цього злака, то ми можемо отримати меньшу собівартість, та вартість вирощування. Збільшена урожайність, та менша потреба в гербіцидах, пестицидах, та інсектицидах це теж наслідок. Тому селекція це майбутнє!


Related Questions

substances can be categorised in two ways: as an element, mixture or compound ora as a solid, liquid or gas. which
of these methods Is of most use ti chemist?​

Answers

Answer:

Most substances on earth are compounds and most interesting chemistry is done with compounds. Most interesting chemistry is done with mixtures of compounds although they often start with pure compounds and then do reactions as mixtures. Most chemistry is carried out in liquid solutions made up of compounds that are solids, liquids, or gases in their pure form.

Explanation:

Here, we are required to determine which of these methods of classifying substances is most important to chemists.

The most useful classification of compounds to chemists is as Elements, Compounds or Mixtures

First classification of substances involves categorising them as pure substances (elements and compounds) or mixtures.

The second classification of substances is categorisation with respect to their state of matter. In essence, we can have solid, liquid or gas.

However, the most useful classification of compounds to chemists is as Elements, Compounds or Mixtures.

This is so because, the type of matter present in Elements are distinct for each element, same as for Compounds and Mixtures formed from a combination of pure substances.

Chemists focus on the diverse properties of substances, as such classification as elements, compounds and mixtures provides a wide basis for the qualitative and quantitative analysis of the properties of substances.

Classification of substances as solid, liquid or gas leaves a narrow avenue for the study of substances as the substance still contains the same type of matter, only this time in different states.

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blood plasma for average adults has a volume of 3100mL. if the density of plasma is 1.020 g/mL, what mass of plasma is in the average adult?

Answers

Answer:

Noseeeeeee

Explanation:

Eeeeeeeeeee

What type of solution is seltzer water? a liquid-liquid b metal-liquid c gas-liquid

Answers

Answer:

(I think its mixture not solution)

Explanation:

Multiphase Mixtures

Carbonated water (or carbonated anything) is a multiphase heterogenous mixture, with gaseous carbon dioxide (CO2) bubbling through liquid water (H2O).

Answer: The answer is C. Gas-Liquid

Explanation: I just took the quiz

What are the effects of colonialism on Africa today?

Answers

Colonialism made African colonies dependent by introducing a mono- cultural economy for the territories. It also dehumanized African labour force and traders. It forced Africans to work in colonial plantations at very low wages and displaced them from their land

Explain why coal, oil, and natural gas are fossil fuels.

Answers

Answer:

They are fossil fuels because they were formed because of fossilized remains of animals and plants that lived many years ago. They also have a high carbon content.

how did the periodic table get its name?
a. the periodic table got its name from the way the elements are arranged in periods called groups.
b. the periodic table got its name from the way the elements are arranged in rows which are called periods.
c. the periodic table got its name from the way the elements are arranged in rows which are called periodic groups.
d. the periodic table got its name from the way the elements are arranged in rows which are called groups.

Answers

Answer:

no te engiendo mi panahellow

Answer:

b

Explanation:

b. the periodic table got its name from the way the elements are arranged in rows which are called periods.

Which phrase describes runoff?


1.underground water that flows into lakes

2.river water that empties into an ocean

3.water from streams that flows into larger rivers

4.water from rain and snow that travels to streams
Please help!

Answers

Explanation:

water from rain and snow that travels to streams

Please help!

Water from a rain and snow that travels to streams are examples of run off. These natural processes are part of water cycle and balance the water content in the atmosphere and hydrosphere.

What is water cycle ?

Water cycle is a geological phenomenon to balance the  water content in the atmosphere, hydrosphere and in the biosphere. The water bodies evaporate by the heat radiated by sun.

The air moisture can be restored to the land through the cooling of the vapor and pour as rain. This best illustrates the interaction between atmosphere and hydrosphere.

Rain, snow, sleet, or hail that reaches a surface stream without ever going below the soil's surface is referred to as surface runoff. It differs from direct runoff, which is runoff that directly reaches surface streams following rainfall or snowmelt. Hence option 4 is correct.

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It's football season! Big Bubba Brown is running full speed trying to tackle the quarterback before he throws the ball. Wham! He got him! What happens to Big Bubba Brown?
A. Bubba uses all of his energy to tackle the quarterback.
B. Bubba and the quarterback lose their energy and fall to the ground.
C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.
D. Bubba knocks the quarterback down and keeps running at the same speed as before the tackle.

this is science btw.

Answers

Answer:

C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.

Explanation:

I majored in Science

Answer:C. Some of Bubba's energy is transferred to the quarterback and Bubba slows down.

just did the usatestprep  

I'll give Branliest to the most efficient and first answer.

1. What major change in our thinking about the path of a moving electron had to be made with the advent of quantum theory?

2. Calculate the wavelength of a space shuttle with a mass of 2.05 x 107kg traveling at a rate of 7.85 x 103 m/s. ​

Answers

Answer:

See explanation

Explanation:

1) With the advent of the quantum theory came the idea that the path of a moving electron can not be exactly determined. We can only talk about the probability of finding the electron within a given region in space.

2) Using the De Broglie's relation;

λ = h/mv

Where;

λ = wavelength

h = Plank's constant

m = mass

v = velocity

λ = 6.6 * 10^-34/2.05 x 10^7 * 7.85 x 10^3

λ = 4.1 * 10^-25 m

Analyze the definition of light-year. Why is it in space we use light-year to
measure distance? *

Answers

Answer:

Because the distance is too far to count with any other way

Explanation:

How many atoms of Mg are present in 97.22 grams of Mg?

Answers

Answer:

2.439 x 10E24 atoms

Explanation:

from

N=n x NA where

N- number of atoms

n-number of moles and NA is the avogadro's number

how many mongo seed are equal to 3.50 moles of mongo seeds?


answer:

2.107 x 10^24 mongo seeds​

Answers

Answer:

50 moles of many mango seeds = 2.107.10²⁴ mango

Further explanation

A mole is a unit of many particles (atoms, molecules, ions) where 1 mole is the number of particles contained in a substance that is the same amount as many atoms in 12 gr C-12

While the number of moles can also be obtained by dividing the mass (in grams) with the molar mass of element or molecule

With  Avogadro's number

N = number of gas particles

No = Avogadro number (6.02.10²³)

n = number of moles

n= N/No

3.50 moles of many mango seeds are comparable to

N mango seeds= 3.5 x 6.02.10²³

N mango seeds=2.107 x 10²⁴..

                                       

How many atoms are in 11.5 g of Hg?
A. 5.73 x 10^-2 atoms
B.3.45 atoms
C.3.45 x 10^22 atoms
D. 5.73 atoms

Answers

C 3.45 x 10^22 atoms
Is C. 345 x 10^22 atoms

If the molecular mass of a substance is 7.304 • 10²³ g, find its molar mass.​

Answers

Answer:

1.213 g/mol

Explanation:

We are given that the molecular mass is 7.304 × 10²³ g.

From avogadro's number, we know that;

1 mole of a substance = 6.022 × 10²³ molecules

Thus;

Molar mass = molecular mass/avogadro's number = (7.304 × 10²³)/(6.022 × 10²³) = 1.213 g/mol

how many moles are in 3.0x10^24 molecules of water​

Answers

I HOPE MY ANSWER HELPS YOU;))

Answer:

3.52 x 10^24 molecules x `1mol/6.02 x 10^23 molecules = 5.85 moles of H2O.

Explanation:

how can you tell if an substance is an elements

Answers

Answer:

A substance that cannot be broken down into chemically simpler components is considered an element

Hope that helps:)

HELPPP which one has four energy levels Si, Ge, or Sn???

Answers

Answer:

Ge

Explanation:

pretty sure im on high school 12th

83.0 g Lithium Cyanide (LiCN)
calculate this to molar mass and moles. Please

Answers

Answer:

32.958 g/mol

2.52 moles

Explanation:

Finding the molar mass:

Use the periodic table to determine the masses of each element

6.94+12.011+14.007=32.958 g/mol

Moles:

83 g*1 mol/32.958 g = 2.5183566964 moles

Molar mass:-

[tex]\\ \sf\longmapsto LiCN[/tex]

[tex]\\ \sf\longmapsto 7u+12u+14u[/tex]

[tex]\\ \sf\longmapsto 21u+12u[/tex]

[tex]\\ \sf\longmapsto 33u[/tex]

[tex]\\ \sf\longmapsto 33g/mol[/tex]

Given mass=83g

No of moles=Given Mass/Molar mass

[tex]\\ \sf\longmapsto \dfrac{83}{33}[/tex]

[tex]\\ \sf\longmapsto 2.5mol[/tex]

Which statement about an object in motion is correct?
Help

Answers

C cause if u think about it if u go to space and u through something it will keep going in that speed and never stop going in that direction!

Which cell organelle controls all cell activities? Group of answer choices B. Nucleus C. Cytoplasm D. Mitochondria A. Cell Membrane E. Cell Wall

Answers


Nucleus is the answer
Your welcome :)

explain the factor of a skeleton system ​

Answers

The human skeletal system consists of all of the bones, cartilage, tendons, and ligaments in the body. Altogether, the skeleton makes up about 20 percent of a person’s body weight. An adult’s skeleton contains 206 bones. Children’s skeletons actually contain more bones because some of them, including those of the skull, fuse together as they grow up. There are also some differences in the male and female skeleton. The male skeleton is usually longer and has a high bone mass. The female skeleton, on the other hand, has a broader pelvis to accommodate for pregnancy and child birth. Regardless of age or sex, the skeletal system can be broken down into two parts, known as the axial skeleton and the appendicular skeleton. Axial skeleton anatomyThe adult axial skeleton consists of 80 bones. It’s made up of the bones that form the vertical axis of the body, such as the bones of the head, neck, chest, and spine. The adult skull comprises 22 bones. These bones can be further classified by location: Cranial bones. The eight cranial bones form the bulk of your skull. They help to protect your brain. Facial bones. There are 14 facial bones. They’re found on the front of the skull and make up the face.Auditory ossicles The auditory ossicles are six small bones found within the inner ear canal in the skull. There are three auditory ossicles on each side of the head, known as the: malleus (hammer)incus (anvil)stapes (stirrup)They work together to transmit sound waves from the surrounding environment to the structures of the inner ear. The hyoid is a U-shaped bone found at the base of the jaw. It serves as a point of attachment for muscles and ligaments in the neck. The vertebral column is made up 26 bones. The first 24 are all vertebrae, followed by the sacrum and coccyx (tailbone). The 24 vertebrae can be further divided into the Cervical vertebrae. These seven bones are found in the head and neck. Thoracic vertebrae. These 12 bones are found in the upper back. Lumbar vertebrae. These five bones are found in the lower back. The sacrum and coccyx are both made up of several fused vertebrae. They help support the weight of the body while sitting. They also serve as attachment points for various ligament. The thoracic cage is made up of the sternum (breastbone) and 12 pairs of ribs. These bones form a protective cage around the organs of the upper torso, including the heart and lungs. Some of the ribs attach directly to the sternum, while others are linked to the sternum via cartilage. Some have no attachment point and are referred to as “floating ribs.”
There’s a lot of bones and bones

Katrina inserts a key into her car’s ignition. She turns the key, putting her car into ignition mode. In this mode, some energy is used to increase the temperature of the car’s fuel. This energy allows the fuel to combust and the car to move. What’s this energy called?
A.
absorbed energy
B.
activation energy
C.
chemical energy
D.
released energy
E.
solar energy

Answers

Answer:

B

Explanation:

Answer:

the correct answer is B

Explanation:

what is the skeleton equation of 2Na + Cl2 → 2NaCl.

Answers

Answer:

Mark me as brienleist

Explanation:

mother aware to u

How does gravity help to demonstrate a cause-and-effect relationship?

Answers

The cause of no gravity means the effect will be we float.

Answer:

Gravity helps show a cause and effect by demostarting how one object will have an effect on another object.

Explanation:

If you bounce a ball, it will fly back up, but it will fall down again because of gravity. The cause is GRAVITY and the effect is the ball FALLINg. Now, because o fgravity, when the ball bounces up again, it will only bounce 1/2 the hieght, having another cause and effect. As gravity pushes down on objects, the more an object is effected by it, the more presure it will have.


Wendy wants to find out if a substance is an acid or a base. What are two ways that Wendy could
investigate to find out what kind of substance it is?

Answers

If it is corrosive and sour, or bitter and smooth. Or, by its pH level.

Without tasting a colorless liquid, an acid or a base can be determined using indicators.

The three most common indicators to test for acids and bases are: Litmus. Methyl orange. Phenolphthalein.

How do you know something is an acid?One practical method for determining how acidic something is is to use the pH scale. A solution is acidic if its pH is less than 7. If the pH of the solution is 7, it is neutral; if the pH is greater than 7, it is basic.To identify acids and bases, two types of litmus paper are available: red litmus paper and blue litmus paper. When exposed to acidic conditions, blue litmus paper turns red, while red litmus paper turns blue when exposed to basic or alkaline conditions.

To learn more about :  Indicators

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Explain why it is often necessary to start a campfire with many pieces of kindling (small pieces of wood) rather than with a few large logs​

Answers

Answer:

It is often necessary to start campfire with many pieces of kindling rather than large logs because it is easier to ignite smaller pieces than larger pieces. Imagine wanting to light up a pile of clothes and a small piece of a shirt. Which ignites faster? The piece of a shirt, because it is smaller and more likely to burn very quickly. Additionally, people criss-cross these tiny pieces of wood to enable more surface area and to allow more oxygen to pass through. As you know, oxygen is necessary for a flame to ignite.

5. Predict which element would have a higher electron affinity: silicon or arsenic. Support your prediction with an explanation.

Answers

Answer:

Silicone

Explanation:

According to periodic trends, electron affinity increases as you go right and decreases as you go down. Silicone is above arsenic so I would expect it to have a higher electron affinity.

Hi people senko-San is best wifu change my mind

Answers

Answer:dude what are you doing here?

Explanation:also i don’t know if I can lol

Which is the function of a cell′s nucleus

Answers

Answer:

The cell's nucleus controls the activities of a cell and carries genes that contain information.

It controls and regulates the activities of the cell. it also carries genes, structures that contain the hereditary information.

reaction type
__HCl + __Mg -> __MgCl2 + __H2

Answers

single replacement reaction type
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