The five ways to minimize microbial contamination are sanitation, sterilization, washing food before consumption, drinking plenty of water and ensure sufficient sunlight/ ventilation.
Microbial contamination refers to microbial infestation or inclusion into human body. It can be intentional or unintentional. The major microbes are fungi, yeast, virus or protozoans. They cause diseases which may be fatal for human health. It is important to protect oneself from such infection and some ways can be by ensuring hygiene and cleanliness around our houses and inside the houses too. There should not be any water logging. Vaccination also helps us to fight against several disease causing organisms by introduction of antibodies inside the human body. Drinking water helps to remove dead, weakened organism to be flushed out by urination. Sunlight helps to weaken the organisms by partially deactivating them due to high temperature.
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PLEASE HELP
Which of the following is not a random occurrence?
A selection of the best-suited traits for the environment, leading to adaptive evolution
Genetic drift changing the gene pool of a population and creating fluctuations in the allele frequencies
The bottleneck effect after an earthquake, resulting in a reduction of genetic variation
The founder effect, when a small population is isolated and the gene pool significantly reduced from the parent population
Answer: A selection of the best-suited traits for the environment, leading to adaptive evolution brainliest
Explanation:
Use the following dichotomous key to identify an irregular blue flower with five petals and a fruit that is a ripened flower ovary or follicle. Dichotomous Key of Ranunculaceae #1. a. Fruit is a group of alkenes. (go to step 2) b. Fruit is a group of follicles. (go to step 4) #2. a. Petals are not present. (go to step 3) b. Petals are present. (Ranunculus) #3. a. The flower has 4 sepals. (Clematis) b. The flower has 5 sepals. (Anemone) #4. a. The flowers are regular. (Aquilegia) b. The flowers are irregular. (Delphinium) The flower is a: A. Anemone B. Clematis C. Delphinium D. Ranunculus
Question:
Use the following dichotomous key to identify an irregular blue flower with five petals and a fruit that is a ripened flower ovary or follicle.
Dichotomous Key of Ranunculaceae
#1.
a. Fruit is a group of alkenes.............................. go to step 2
b. Fruit is a group of follicles..............................go to step 4
#2.
a. Petals are not present.....................................go to step 3
b. Petals are present............................................Ranunculus
#3.
a. The flower has 4 sepals.................................. Clematis
b. The flower has 5 sepals................................... Anemone
#4.
a. The flowers are regular..................................... Aquilegia
b. The flowers are irregular................................... Delphinium
The flower is a: A. Anemone B. Clematis C. Delphinium D. Ranunculus
Answer:
The species belongs to Delphinium genera.
Explanation:
A dichotomous key is relatively simple to interpret. All you need to do is to:
- carefully observe your organism,
- know some technical terms or have a biological dictionary, and
- follow the descriptions.
The dichotomous key is going to lead you to the answer.
In the example, we have a plant species with irregular blue flowers and five petals. The fruits are a ripened flower ovary or follicles.
Irregular flower: Term that refers to asymmetrical flowers that only have one plane. Follicle: Term that refers to dry dehiscent fruits originated from a flower with only one carpel. When mature, they open by the ventral suture.So, let us begin, step by step. For each number, we are going to have two options (a and b). By knowing our organism, we need to decide which one is correct and follow indications.
#1.
a. Fruit is a group of alkenes.............................. go to step 2.
b. Fruit is a group of follicles..............................go to step 4.
We know that our fruit is a follicle. Option a is not correct (it is not a group of alkenes). Option b is the correct one. Knowing this, we must go to step four. ***Note: In the hypothetical case that the fruits were a group of alkenes, and option a was correct, we should go to step two, as indicated***.
#4.
a. The flowers are regular..................................... Aquilegia
b. The flowers are irregular................................... Delphinium
We know that our flower is an irregular one. So the correct option is b. This option leads us to Delphinium genera. Our species belongs to this taxonomic group. ***Note: In the hypothetical case that the fruit was actually a regular flower, and option a was correct, our species would belong to Aquilegia genera***
DNA controls the structure and function of a cell because...
Answer: it makes up the cell or it’s the to-do of the cell kinda like coding
Explanation:
whats the relationsip between a front and an air mass
What is true of the genetic makeup of all body cells in the human body except for sex cells?
Answer:
It is the same no matter what the cell type. It is random even within the same cell type. It is used to sort cells into organs based on chromosomal differences.
Explanation:
The neurons that send signals from the brain to the body muscles are motor neurons
true or false
Answer:
true
Explanation:
If a gray fly is crossed with a heterozygous black fly, which combination below represents the parental cross?
Answer:
hello your question lacks the required options hence I will give you a general answer
answer : gg ( gray fly ) * Gg ( heterozygous black fly )
Explanation:
Let black body ( G ) be the dominant allele to gray body ( g )
hence the possible combination that will represent a parental cross when a gray fly is crossed with a heterozygous Black fly will be
gg ( gray fly ) * Gg ( heterozygous black fly )
Albino individuals lack all pigmentation so that their hair and skin are white. This pedigree shows that albinism -
Female
Male
1
Albino
Individuals
2
A is a sex-linked gene.
B is carried only by females in this family,
C requires both parents to be albinos.
D is a recessive genetic trait.
Answer:
I -Albino individuals
How does the tilt of a planet affect its temperature?
All correct EXCEPT: of the following statements concerning characteristics of predator-prey relationships are A. A rise in the population of prey is often followed by a rise in the population of predators. B. A rise in the population of predators is followed by a decrease in the population of prey. C. Camouflageisanadaptationthatprotectsprey. D. Theproductionoflargenumbersofoffspringwithinveryshortperiodsoftimeensures the survival of some prey populations. E. The population of predators most often eliminates the population of prey.
Answer:
are A. A rise in the population of prey is often followed by a rise in the population of predators.
What is a vestigial structure?
Answer:
Structures that have no apparent function and appear to be residual parts from a past ancestor are called vestigial structures. Examples of vestigial structures include the human appendix, the pelvic bone of a snake, and the wings of flightless birds.
Explanation:
please give me brainlist and follow
Answer:
remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species.
Explanation:
i hope this help
How does nectar increase the ability of plants to reproduce?
Answer:
get pollen from one flower to another
If data for the growth of this bacterial population continued to be recorded, would the data point at 60 hours be above or below 37 million? Support your answer.
what type of cells can be transformed
Answer:
Stem Cells
Explanation:
Stem cells are unspecified or undifferentiated meaning they can turn into any type of cell
Answer:
Stem cells
Explanation:
They can be transformed into any type of cell
Photosynthesis occurs in plants in specialized organelles called ____. *
A. Golgi bodies
B. chloroplasts
C. mitochondria
D. lysosomes
Answer:B chloroplast
Explanation:
Answer:
Photosynthesis occurs in chloroplasts
B. Chloroplasts
Explanation:
Current wind, solar, nuclear and hydroelectric energy technologies
А
emit carbon dioxide
B
are able to deliver all the energy we need
с
don't have the efficiency and scale we need
D
burn a lot of fossil fuels
Cancer is caused by __________ in genes that regulate the cell cycle. These mistakes in DNA, cause the checkpoint __________ to not function properly. As a result the cells will spend more time dividing, which is called _____________ rather than in interphase.
Explanation:
cancer cause due to uncontrolled divisions of the cell because of gene mutations or presence of oncogenes which destroy or destabilise the checkpoints that prevent or controll cell division
What type of trait is the body length?
PLS AWNSER FAST WILL GIVE BRAINLY!!!!!!!!!
what types of of chromosomes are about the same size and contain the same type of genes?
A. Homologous chromosomes
Or
B. Analogous chromosomes
Or
C. Sister chromosomes
Answer:
Homologous chromosomes
Explanation:
Homologous chromosomes are chromosomes which contain the same genes in the same order along their chromosomal arms.
Which of the following kingdoms does NOT have members who are heterotrophic? A. Fungi B. Animalia C. Plants D. Protista (Dont send me a file)
Answer:
Plants
Explanation:
This is because plants kingdom are autotrophic that they are producers.
Plants kingdom are producers because the photosynthesized. The have chlorophyll which trap light energy from the sun and uses carbondioxide and water to produce carbohydrates and oxygen is released. Therefore they are not heterotrophic, they did not depend on other kingdom to feed...they are primary producers.
What is a mixture where the composition is not uniform
Hello!!
Heterogeneous would be the answer here. The definition of heterogeneous is: composed of dissimilar parts which can be separated easily and which are unevenly distributed in the mixture. So, heterogeneous would be a mixture where the composition is varied.
Hope this helps!!
I know when a hot surface is touch receptors in the hand send a signal to the nervous system the nervous system then sent a signal to the musculine and the arm to contract and move the hand from the hot surface which of these best describes this example
which of these cells is the odd one out?: human skill cell, fungi cell, a or bacteria cell?
AYO PLS HELP...... condon amino acids ect
Which of these is NOT a factor contributing to the loss of biodiversity?
a
urbanization
b
climate change
c
planting of trees
d
over exploitation of species
Answer:
Option C
GOOD LUCK FOR THE FUTURE! :)
Planting of trees is not a factor contributing to the loss of biodiversity. Thus, option C is correct.
What is five kingdom classification?
The main purpose of the classification of the Five kingdom has been known R.H. Whittaker. The five kindoms that has were included in this proposal were the Fungi, Protista, Monera.
Animalia as well as the kingdom Plantae. There are mainly five criteria or the conditions based on which the classification has been madeup of. These criteria has been includes the structure of the cell, as well as the nutrition mode, organisation of the thallus, or the relations of reproduction and phylogenetic.
Based on shoe characteristics they were to develop a classification hierarchy of shoes, beginning with the shoe "kingdom" and becoming more and more specific, just like scientists did for the classification of living things.
Therefore, Planting of trees is not a factor contributing to the loss of biodiversity. Thus, option C is correct.
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What’s the answer to this I didn’t mean to click this btw
A brother and sister are fighting over a toy. The brother pulls the toy with a force of 6N
while the sister pulls back with a force of 8 N. What is the net force? Who gets the toy?
Answer:
the sister wins of course since she is pulling with a stronger force
Explanation:
net force
8n-6n=
2N
What is rule of dominance?
Answer:
Mendel's law of dominance states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. Rather than both alleles contributing to a phenotype, the dominant allele will be expressed exclusively.
Explanation:
Hope this helps:)
The transport of water through a plant depends on roots absorbing water. Roots depend on osmosis to obtain water. In osmosis, water always a. Moves from a high concentration to a lower concentration b. Moves from a lower concentration to a higher concentration c. Moves so that the concentration of water on one side of the cell membrane is higher than on the other side d. Moves until there is no water left on one side of the cell membrane
Plz help!! Will mark brainliest
Answer:
64
Explanation:
8 x 8
Answer:
the area should be 64 because area is length x width, so 8x8=64