Kaji pernyataan berikut.

Pertumbuhan bakteria adalah lebih baik dalam keadaan gelap daripada keadaan bercahaya.

(a) Nyatakan satu pernyataan masalah daripada maklumat di atas. [1 markah]

(b) Cadangkan satu hipotesis untuk menyiasat pernyataan di atas. [1 markah]

(c) Berdasarkan pernyataan yang diberi, reka bentuk satu eksperimen makmal untuk menguji hipotesis anda menggunakan dua piring petri steril dengan penutup berlabel X dan Y, dawai gelung, larutan kultur bakteria Bacillus sp., agar-agar nutrien steril dan pita selofan.
Huraian anda harus mengandungi aspek berikut:

(i) Tujuan eksperimen [1 markah]
(ii) Mengenal pasti pemboleh ubah [2 markah
(iii) Prosedur dan kaedah [4 markah]
(iv) Penjadualan data [1 markah)​

Answers

Answer 1

Answer:

i didn't understand yiur language


Related Questions

Explain the relationship of the structure of cell membrane molecules to the function of the cell membrane overall. You must discuss the structure/function relationship of at least 3 different molecules that compose the cell membrane.
Help me please

Answers

Answer:

to protect the cell from its surroundings

Explanation:

I double checked my notes

What relationship will blood volume have on blood pressure?

Answers

Answer:

Answer:I HOPE THAT ABOVE INFORMATION WILL HELP YOU A LOT.

Answer:I HOPE THAT ABOVE INFORMATION WILL HELP YOU A LOT.

As blood volume decreases, pressure and flow decrease. As blood volume increases, pressure and flow increase. Under normal circumstances, blood volume varies little

Many animals have a mutually-beneficial, symbiotic relationship with bacteria that reside in their guts. To study the effects of these relationships in more detail, research organisms such as fish and mice have been raised under germ-free conditions. What important process do you predict is compromised in germ-free mice

Answers

Answer:

Explanation:

Quá trình tiêu hoá và hấp thụ chất dinh dưỡng

What would be the resulting polypeptide chain that is produced from the DNA template code: TACTTCAAAATC? Use the following RNA codon to amino acid table to help you figure out the resulting polypeptide. Show your steps.

Answers

Answer:

Methionine- Lysine- leucine- stop

Explanation:

This question is describing the processes of transcription and translation, which are both involved in protein synthesis. Transcription is the synthesis of a mRNA molecule from a DNA template while translation is the synthesis of a polypeptide/amino acid sequence from a mRNA template.

The following DNA molecule was given as follows; TAC TTC AAA ATC. Firstly transcription will synthesize an mRNA molecule based on complementary base pairing rule. The resulting mRNA will be: AUG AAG UUU UAG

Next, the process of translation which involves the synthesis of an amino acid sequence from mRNA. Using the genetic code will produce the following:

Methionine- Lysine- leucine- stop

Besides plants, what other factor distinguishes one biome from another biome?
(A) the number of plant species in the biome
(B) the variety of animal species
(C) average temperatures and precipitation
(D) geographic location

Answers

C) Average temperatures and precipitation

In paragraph form (automatic 1-pt deduction if not), explain the evolutionary benefits of sexual reproduction as a means of increasing variation. Be sure to include (a) at least two ways in which sexual reproduction impacts genotype (i.e. genetic effects), and (b) two ways in which sexual reproduction may affect phenotype (i.e. trait effects).

Answers

Answer:

See explanation

Explanation:

According to the theory of evolution,species which are better adapted to their environment tend to survive and reproduce in a population passing on these favourable characteristics to their offsprings.

During sexual reproduction, genes can be arranged in new ways from chromosomal crossing over and recombination. This introduces new gene combinations(genotype) and ultimately variation in the population.

This variation may also lead to the observation of new phenotypes in the population.

Adaptation:
Question 4
Which phrase indicates that organisms in a population with the best-adapted set of traits become more common over time?
Select one:

Mutations are not harmful.


Bigger is better.


All organisms have a common ancestor.


Survival of the fittest.

Answers

Answer:

Mutation is yes a harmful

Explanation:

biological term for control of the body temperature​

Answers

Thermoregulation is a process that allows your body to maintain its core internal temperature. All thermoregulation mechanisms are designed to return your body to homeostasis. This is a state of equilibrium

Difference between Birds and Bats.​

Answers

Explanation:

Bat and birds fall into two very distinct Categories: bats are classified as mammals and birds are ave. Bats give birth to live young and produce milk to feed their babies. Birds lay eggs and forage to feed their young.

Whats the Independent variable for “Which Bait works best for a homemade fly trap?”

Answers

Answer:

The independent variable for "which bait works best for a homemade fly trap" if using the hypothesis of   "If I use the correct bait, then I will have a successful homemade fly trap" is the bait that you are going to use.

Explanation:

Using your "if, then" statement, the cause is called the independent variable and the effect is the dependent variable.

Hope this helps!

Decide whether each statement is a 'positive' or 'negative effect of deforestation.
a) It provides land to grow food or keep farm animals.
b) It makes mudslides more common.
c) It allows new roads to be built to connect cities.
d) It can make the area warmer and windier.
e) It can cause extinctions by destroying habitats.
f ) It allows more biofuels to be grown to provide energy.
g) It increases the amount of soil carried away by rivers.
h) It increases the amount of carbon dioxide in the atmosphere.​

Answers

Answer:

1) negative because it provides land for something and they need to take of trees maybe.

2) positive because that ends up in trees and they grow more

3) negative because it takes a lot of space so trees need to be taken off.

4) positive.

5) negative because the habitats of the animals are normally near trees

6) negative.

7) positive because it lets the trees grow better

8) positive because plant breath carbon dioxide.

What is conservation genetics?Question 82 options: conserving a species genome so that it is best adapted to the current environment harvesting and saving samples of species genomes from distinct time periods a way to inform conservation efforts based on genetic information from species techniques that preserve a low genetic diversity of an ecosystem the use of genetically modified organisms (GMOs) to strength a particular ecosystem

Answers

Answer:

a way to inform conservation efforts based on genetic information from species

Explanation:

Genetic studies in wildlife and captivity species provide significant information to understand aspects regarding the biology and ecology of species, especially endangered species. Many discoveries have been useful to solve several taxonomic issues, determine the risk of diseases, and explain reproductive problems, among other problems. What is even more important is that genetic knowledge helps to plan management programs and conservation. Together with other areas related to behavior and conservation, genetic knowledge provides the basis to carry out successful conservation strategies.  

How did the x-ray evidence produced by Rosalind Franklin contribute to Watson and Crick’s discovery of the structure of DNA?

Answers

Answer:

Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. ... Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things.

hope it's help you...!!!

plz mark as brain list and follow me #rishu...!!!

Answer:

Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. ... Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things

Explanation:

Hope it will help you

Which chemical bond is most common in living things? a. ionic bond b. metallic bond C. covalent bond d. hydrogen bond​

Answers

Answer:

hydrogen bond

Explanation:

i think because humans have water in the body that has hydroden maybe

how many hearts does the octopus have ?​

Answers

Answer:

3

Explanation:

Answer:

Three hearts

Explanation:

One heart pumps blood throughout the body, while the other two pumps oxygen-rich blood through the gills.

OAmalOHopeO

Why is it difficult to bond three phosphate groups to Adenosine?

They have the same charge and repel each other.

They form a strong attraction to each other.

They are like opposite poles of a magnet.

The energy is evenly dispersed across all three bonds.

Answers

I think that answer is they are like Opposite poles of magnet.

I really hope it’s right

Which process must occur for a muscle to be able to relax?
ОА. .
The amount of ATP in the neuromuscular junction must increase.
OB. Myosin and actin must attach to each other.
OC.
A nerve must initiate an action potential in the muscle fiber.
OD
The concentration of calcium in the myofibril must decrease.

Answers

Answer:

D. The concentration of calcium in the myofibril must decrease.

Complete the following.
1. Waste containing dangerous chemicals is ...... waste.
2. Vegetable and fruit peels and food left over comprise ... waste.
3. Hospital waste is highly ......
4. Plastic is nonbiodegradable, as it does not
5. The method of adding earthworms to compost pits is called ...​

Answers

1) Waste that contains both hazardous chemicals and radioactive wastes (generally those in the LLW category) is termed 'mixed waste

2) Vegetable and fruit peels and food left over comprise biodegradable waste.Plastic is non-biodegradable, as it does not decompose

3) Hospital waste is the second most hazardous waste after radioactive waste. The improper management of hospital wastes causes serious environmental problems in terms of air, water and land pollution

4) most plastics are non-biodegradable mainly because plastic is widely used because of its low cost, versatility and durability

5) Vermicompost (vermi-compost) is the product of the decomposition process using various species of worms, usually red wigglers, white worms, and other earthworms, to create a mixture of decomposing vegetable or food waste, bedding materials, and vermicast

hope it's helpful to you

define ostia in science​

Answers

Answer:

Ostia are tiny pores present all over the body of sponges. its function is to let the water, along with desire nutrient flows interior of the sponges.

Answer:

An opening, a passage.

Explanation:

science - Anatomy

what was invented in the late 16th century that allowed scientists to study organisms at a new level

Answers

Answer:

compound light microscope

Explanation:

:)

The light microscope was in the late 16th century that allowed scientists to study organisms at a new level.

Thus, The microscope revolutionized the field of biology by enabling researchers to observe and study tiny structures, cells, and microorganisms that were previously invisible to the eye.

This technological advancement marked a significant milestone in the history of science.

It paved the way for discoveries and insights into the microscopic world of living organisms.

Thus, The light microscope was in the late 16th century that allowed scientists to study organisms at a new level.

Learn more about Microscope, refer to the link:

https://brainly.com/question/9255183

#SPJ3

+10 POINTS! AND BRAINLIEST!


The number of chromosomes within each species of plant or animal:
A. is constant is
B. reduced in half with reproduction
C. is always 46
D. varies

Answers

Answer:

is always 46

Explanation:

46 is the correct answer

Answer:

the answer is a.

Explanation:

if you are talking about only within a specific species, then the number of chromosomes is supposed to stay constant within that species. however, chromosome disorders do exist, but they are relatively rare.

hope this helped!!

8. How is penicillin used?
O to make cheese
O to kill protists that cause disease
O to kill bacteria that cause disease
O to make bread rise

Answers

Answer:

O to kill bacteria that cause disease

Explanation:

penicillins are a group of antibiotics used to treat a number of bacterial infections.

hope this helps!

Which of the following represents biotic factors? 1. Sunlight II. Oxygen III Plants
1 and 11
ll and III
lll only
ll only​

Answers

Answer:

1 and 11

Explanation:

The five abiotic factors are sunlight, temperature, water, oxygen, and soil.

Plants represent biotic factors.

What is a biotic factor?

"A biotic factor is a living organism that shapes its environment. Example: plants, animals, microorganisms."

What is abiotic factor?

"An abiotic factor is a non-living part of an ecosystem that shapes its environment. Example: sunlight, air, soil, water, etc."

What are the components of environment?

The basic components of the environment are

atmosphere or the air,lithosphere or the rocks and soil,hydrosphere or the water,the living component of the environment or the biosphere.

To know more about biotic factors here https://brainly.com/question/27430655

#SPJ2

Which of the following is NOT of the major biogeochemical cycles?

A.Life cycle
B.Water cycle
C.Carbon cycle
D.Phosphorus cycle

Answers

water cycle............

The following is NOT of the major biogeochemical cycles D.Phosphorus cycle is D.Phosphorus cycle.

What is the difference between Carbon cycle and Phosphorus cycle?

The major distinction among carbon and phosphorus cycle is that carbon cycle interacts with the environment while phosphorus cycle does now no longer engage with the environment. Therefore, the carbon cycle is a sort of gaseous biking while the phosphorus biking is a sort of sedimentary rocks.

As in comparison to nitrates & different macro elements, decomposers take longer time to decompose any lifeless biota into phosphates. Decomposers are organisms mainly a soil bacterium, fungus, or invertebrate, that decompose natural material. These are the motives for phosphorus cycle being the slowest biogeochemical cycle.

Read more about the Decomposers :

https://brainly.com/question/380333

#SPJ2

A boy picks up an earthworm and place it on a white tile. He observed that the earthworm has difficulty in moving forward.
Explain why.​

Answers

Answer:

A number of tiny hair like bristlez are present on the lower surface pf an earthworm's body. These bristles help it to get a good grip on the surface of q ground.However these bristles donot provide good grip on plain glass tiles.

Earthworms have microscopic hairs or bristles all over their body which provide the necessary traction while movement. These bristles or setae are present on each segment of their body and it imparts the necessary grip or anchorage for forward and backward movement.

Tile is smooth in nature so earthworms cannot move as the setae will not get sufficient surface support to move the body.

Answer From Gauth Math

How many different genotypes are possible from a cross between the parents RRYy and rrYY?

Answers

Answer:

1 genotype is possible

RrYy

RrYy or RrYY
it will always be Rr when crossing RR and rr but crossing Yy and YY can give YY or Yy

Which of the following shows the correct order in which sound information travels through the ear?
O Ossicles, eardrum, cochlea, cochlear nerve
Eardrum, ossicles, cochlear nerve, cochlea
O Eardrum, ossicles, cochlea, cochlear nerve
O Ossicles, eardrum, cochlear nerve, cochlea

Answers

The following shows the correct order in which sound information travels through the ear is Eardrum, ossicles, cochlear nerve, cochlea.

What is the cochlear nerve?

The cochlear nerve, additionally called the acoustic nerve, is the sensory nerve that transfers auditory records from the cochlea (auditory vicinity of the internal ear) to the brain. It is one of the many portions that make up the auditory system, which permits powerful listening to.

We pay attention while sound waves journey thru the air to our eardrum, throughout our center ear, into our internal ear, and sooner or later to the auditory facilities of our brain. Our ears are constantly on and are constantly sporting sounds alongside this listening-to pathway.

Read more about the eardrum:

https://brainly.com/question/14122003

#SPJ1

Answer:

Eardrum, ossicles, cochlea, cochlear nerve

Explanation:


The heart is an example of which level of organization within an organism?
cell
organ
tissue
оо
organ system

Answers

Answer:

tissue is a right answer

tissue is the right answer the heart is an example of tissue.

Hello everyone, I need your help plz
Define the word Microbiology:-

Thx ^_^

Answers

Answer:

Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and protozoa. This discipline includes fundamental research on the biochemistry, physiology, cell biology, ecology, evolution and clinical aspects of microorganisms, including the host response to these agents.

it is the branch of biology that studies micro-organisms (very small organisms). ... The scientific study of microorganisms. (biology) The branch of biology that deals with microorganisms, especially their effects on man and other living organisms.

the study of all living organisms that are too small to be visible with the naked eye. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'.

hope it helps

PLEASE MARK BRAINLIEST

For a scientific theory to be valid, it must allow you to

O perform experiments

obtain new results each time.

find a new, more complex explanation

Make predictions

Answers

Answer:

Explanation:

That's quite a bit of points. Offer 20 next time (which shows up as 10).

Not all experiments lend themselves to this, but the best ones do. Make predictions. The startling experiments (the best of them) certainly allow you to make predictions

Most of the time, experiments confirm what was originally thought. It is, however, the best answer among this bunch.

A is also possible, but not always. I will stick with D, but I think others will pick A.

Other Questions
All of the following statements are reasons why Buffalo hunting was important to Plains Indians except the answer is d just took it Select the restrictive clause in the sentence below.The boy who is in yellow is my brother.he boy who is in yellowwho is in yellow is myyellow is my brotherwho is in yellow 7. Write the new function, h(x), given the mapping statement: f(X)->-4f(X)f(X) =(x+3)^2+3 please answer the above question spam will be reported 10 times After a robbery, what is the purpose of conducting a neighborhood canvass?to look for hiding suspectsto identify and interview witnessesto check for footprints or tire tracksto find stolen items PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!Which of the following statements is correct about the data set 7, 10, 9, 100, 5, 12?A. The data set has an outlierB. The mean is the best and most accurate measure to describe this data setC. The data set has two modesD. The data set has a median of 10 Select the correct answer from each drop-down menu.disease. Some carriers of the disease exhibit Sickle cell disease is passed on from parent to offspring. Sickle cell disease is an Increased resistance to malarial parasites. This resistance is a mutation.First drop down options are (inherited) & (acquired) Second drop down options are (Neutral)&(harmful)&(beneficial) what is the bench decorum short definition Which of the following represents a physical change? Is it ethical for a professor to deny a student an opportunity to write exam since he or she's late n didn't write his or her assignments then allowing other students to write an exam while they are also late , reasons plss 1. .............. can be considered as raw data. (a) Sithums G.C.E. (O/L) examination results(b) Z-Score of G.C.E. (O/L) examination results(c) The average marks of students of G.C.E. (O/L) examination(d) The top ten total marks of students of G.C.E. (O/L) examination What is the purpose of environmental legislation? I NEED HELP THANK YOU!! The Chiemsee Knee Replacement Clinic (CKRC) is a sports clinic located at the northern edge of the German Alps. It specializes in knee replacements for skiers who come to CKRC from Germany, Austria, Switzerland, and Italy. The clinic currently has one operating room (OR). However, since the clinic has dramatically more demand than capacity, the management team contemplates investing in a second OR. A lean consulting firm, however, suggests that before going ahead with installing new capacity, the clinic should first look at how it uses its existing capacity. The data collected by the consulting firm reveal that:The OR is available for 12 hours a day; the hospital has decided to not perform any procedures between 7pm and 7am. This time is equally divided across three surgeons.The standard procedure time for the knee surgery done at the clinic is 1h.The cleaning and housekeeping that needs to happen after each procedure takes 20 minutes. Almost all of this time could be saved if the cleaning crew were notified earlier on.10 minutes are spent on patient preparation / anesthesia work before each procedure. (Note: this is not part of the 60-minute procedure time). Proposals have been evaluated to move these 10 minutes to outside the OR, and there exists no medical reason that would prohibit doing this.)A surgeon only starts a case if all of the work associated with the case (preparation, procedure, and cleaning) can be completed in the 4h allotted to each surgeon. Surgeons never start BEFORE their allotted time.Though the clinic aims to operate 7 days a week, holidays, vacation, and construction time lead to an average of one day a week that the OR cannot be used at all.What is the OEE of the operating room? Assume a 12h window in which the OR could be used. Solve for $2\left(1-\frac{1}{2}\right)+3\left(1-\frac{1}{3}\right)+4\left(1-\frac{1}{4}\right)+\ldots+10\left(1-\frac{1}{10}\right)=?$Hall please f=((-1,1),(1,-2),(3,-4)) g=((5,0),(-3,4),(1,1),(-4,1)) find (f/g)(1) Your best friend has just been suspended from school for truancy. write a letter to him/her expressing your displeasure and advising him/her to turn a new leaf. If x-6,x-2 and x+10 are three consecutive terms of a geometric progression,find the value of x Miguel can use all or part of his $25 gift card to make a music purchase. Each song costs $1.50, and there is a $1.00 per account activation fee.Which inequalities can represent this situation if m is the number of songs he can buy? Select two options.1 + 1.5 m less-than-or-equal-to 25 Which of the following is equivalent to the logarithmic equation belowIn x= 4