Herbicides are not a type of biological contamination since they are toxic substances that are not living things.
Biological contamination is the contamination by living microorganisms that are toxic. Herbicides are not the type of biological contamination. Thus, option D is correct.
What are biological contaminations?
The contamination of the food, water, air, or soil due to harmful living organisms is called biological contamination. These microbes cause diseases and illnesses in the other species.
Viruses, bacteria, and protozoans are the biological contaminants that result in diseases and pollution. On the other hand, herbicides are chemical substances that are used to kill the pests infesting the crops.
Therefore, herbicides are not biological contaminants.
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21. What is genetic drift?
a. Random change in population number
b. Random change in the amount of DNA in a population
c. A method of determining the relative age of a population
d. Random change in the allele frequency of a population
e. How scientists determine if two organisms are related
B.
Genetic drift is the change in the frequency of an existing gene variant in a population due to random sampling of organisms.
What are common changes
In an environment?
Answer:shelter, land, prey
Explanation:
10. How does a right angle (90°) alignment between Earth, the Sun, and the Moon influence the tides on Earth?
a. It produces the greatest change in high and low tides.
b. It produces the least change in high and low tides.
c. It produces semidiurnal tides.
d. It produces diurnal tides.
Answer: The combined gravitational pull of the Sun and moon cause high tides in the path of the alignment, meaning that low tides occur at ninety degrees from the path of the solar eclipse. Due to inertia, the high tides also occur on the opposite side of the Earth from the solar eclipse.
Explanation: it's a
I got a 100% on Cumulative Exam Review in Biology, here are the answers:
1.) D
2.) D
3.) D
4.) D
5.) B
6.) B
7.) B
8.) A
9.) A
10.) A
11.) C
12.) D
13.) C
14.) A
15.) C
16.) B
17.) D
18.) A
19.) D
20.) A
21.) C
22.) A
23.) D
24.) B
25.) B
Good Luck :))
Answer:
that is a very good answer is there anymore
Answer:
Thank you!
Explanation:
HELP WILL GIVE BRAINIEST AND 20 POINTS!!! MY HOT TOPIC ASSIGNMENT IS ABOUT KAMALA HARRIS BECOMING THE FIRST FEMALE, FIRST BLCK AND FIRST SOUTH ASIAN PRESIDENT ELECT. PLEASE GIVE ME 5 QUESTIONS I CAN ASK MY CLASSMATES IT HAS BE RLLY GOOD ONES/ DEEP THINKING ONES REGARDING THE TOPIC I CHOSE. FOR EXAMPLE, DO YOU THINK KAMALA HARRIS BECOMING VICE PRESIDENT WAS A GOOD THING FOR AMERICA? DONT ANSWER IT PLS JUST GIVE QUESTIONS LIKE THAT OR BETTER ONES.
Answer:
What changes do you think she will make that will help the country
Answer:
1) Would your focus be improving the Affordable Care Act or replacing it with single payer?
2) Do you think it’s possible for the next president to stop climate change?
3) Do you think Israel meets international standards of human rights?
4) Do you think illegal immigration is a major problem in the United States?
5) Would there be American troops in Afghanistan at the end of your first term?
Explanation:
Hope this helps! :)
I need help Plz!(this is due today)
Answer:
a
Explanation:
Answer:
A. Earthquakes and plant growth
Explanation:
I know it's right -_-
why do all organisms need food?
Answer:
for energy and because they need food to live
Explanation:
Why did Robert Hooke choose the name of the tiny chambers that he saw in his microscope?
Answer:
cell
Explanation:
Robert Hooke named the tiny chambers that he saw in his microscope cells
Make him/her brainliest please. (I answered for him/her to be brainliest.)
Chemicals and proteins in the cell read the DNA ___________ for building that make cells, tissue and organs.
(A.Instructions
(B.Genes
(C.Recipe
(D. Life manual
Genes of DNA can be read by chemicals and proteins for building that can make cells, tissue, and organs. Therefore, option "B" is correct.
What are genes?
Genes are composed of DNA which is the genetic material. Gene is the functional unit of heredity. Chromosomes are comprised of multiple genes. Genes code for a particular trait. More than one gene can code for a particular trait.
The function of DNA and RNA is controlled by genes. There are more than 3000 genes present. Mutation can occur in genes. Deletion and insertion are some types of mutation genes. Transposomes are called jumping genes. Sickle cell anemia and cystic fibrosis are some examples of gene mutations.
Genes code for the traits such as the color of eyes, height quality of hair, and more.
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how does the nervous system help the excretory system maintain homeostasis?
Answer:
The nervous system maintains homeostasis by controlling and regulating the other parts of the body. A deviation from a normal set point acts as a stimulus to a receptor, which sends nerve impulses to a regulating center in the brain.
Explanation:
The nervous system keeps the body in a state of homeostasis by controlling and regulating excretory system.
What is Homeostasis?In a broad sense, homeostasis refers to a system's stability or balance. It's the body's endeavor to keep its internal environment consistent. Internal environment stability necessitates regular monitoring and modifications as conditions change. Homeostatic control refers to the balancing of physiological systems within the body.How does nervous system regulates homeostasis?Because the nervous system does not store nutrients, it must get them from the bloodstream on a regular basis. Any disruption in blood flow might result in brain injury or death.The nervous system keeps the body in a state of homeostasis by controlling and regulating the other organs. A variation from a regular set point stimulates a receptor, which transmits nerve impulses to a brain regulating area.learn more about homeostasis here:
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ASAP!!!!!!! I NEED HELP
Why are there two sets of phases during meiosis, but only one during mitosis? Think about what is different about meiosis and mitosis
Answer correctly or I will report
Answer:
Cells undergoing mitosis just divide once because they are forming two new genetically identical cells where as in meiosis cells require two sets of divisions because they need to make the cell a haploid cell which only has half of the total number of chromosomes.
Explanation:
21. The compound C3H5(C17H3502)3
is a carbohydrate with 40 hydrogen atoms
is a lipid with 40 hydrogen atoms
is a carbohydrate with 110 hydrogen atoms
is a lipid with 110 hydrogen atoms
Answer:
I kinda need points but I'll help u it might be the second one though
What is circulatory system? Name its main organs.
Answer:
the system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.
The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries.
Explanation:
List four characteristics of plants.
Answer:
1. Plants produce their own food.
2. Plant cells have a cell wall.
3. Plants reproduce with spores and sex cells.
4. Plants have a vascular system.
Explanation:
Here is four characteristics plants have.
Plants produce food through photosynthesis so I included that here.
Hope this is correct, have a great day.
What are the roles nucleic acid plays on living system?
Answer:
The functions of nucleic acids have to do with the storage and expression of genetic information. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis.
Explanation:
Hemoglobin is found in red blood cells and carries oxygen from your lungs to the rest of the body. Insulin is a hormone used to regulate blood sugar levels. Since hemoglobin and Insulin are made of chains of amino acids, they are examples of which type of organic molecule?
A. Lipid
B. Protein
C. Carbohydrate
D. Nucleic acid
Answer:
B
Explanation:
Proteins are made of chains of amino acids.
For each codon, find the correct tRNA anticodon and drag it to the ribosome. Start with the AUG codon
in the ribosome. Find and drag its match, the UAC anticodon, to it. Also, record this pair and the
associated amino acid, Met, to complete the first row of the data table.
PLEASE HELP I DONT KNOW HOW TO DO THIS AT ALL
Drag the correct tRNA anticodon into the ribosome. Therefore, A matches U and C matches G.
What is the UAC anticodon?The Ribosome Workbench uses the AUG codon as a universal signal to initiate translation. Because the methionine-bound tRNA has the anticodon sequence UAC, the AUG start codon signals the ribosome to insert into the amino acid methionine.
What is the correct tRNA anticodon for the mRNA codon 5 GGA 3?1 One codon is 5'-ACG-3'. What is the sequence of tRNA anticodons that bind? Which amino acids does tRNA have? The sequence of the tRNA anticodon is 3'-UGC-5', and the tRNA has the amino acid Thr, the amino acid encoded by the codon.
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Which of the following statements explains why plants are essential to the carbon cycle?
Answer:
Plants absorb carbon dioxide, water and sunlight to make their own food, grow and release oxygen through photosynthesis. They're a huge part in keeping our air clean.
Explanation:
Hope this helps.
What is a hominid? O A. Any ancestor of humans B. Any bipedal primate O C. Any species formed by evolution O D. Any bipedal animal
According to the research, the correct answer is Option A. A hominid is any ancestor of humans.
What is a hominid?They are the hominoid primates that include both humans and their closest relatives.
In this sense, in general, it is linked to the evolution of the human being, which is characterized by walking on two legs and upright and which belongs to the order of higher primates as the only species that survives.
Therefore, we can conclude that according to the research, the concept of hominid alludes to the human being as a single surviving species and its ancestors.
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a device that is held in your hand to transmit and recieve verbal communication is called
Answer:
radio maybe?? could also be cellphone lol
Explanation:
Which body made up of water is part of the cryosphere?
O A. A glacier
O B. A raindrop
C. A river
D. A lake
Answer:
A
Explanation:
Some vitamins are mostly found in animal-based foods, while some vitamins are abundant in plant-based foods. The best source of vitamin C is ____ , while ____ is naturally rich in vitamin B12. First blank: cheddar cheese, strawberries, lentils Second blank: fish, broccoli, peanut butter
Answer:
I did this for my test and had them correct
1. strawberries
2. fish
Explanation:
As per the given scenario, The best source of vitamin C is strawberries, while fish is naturally rich in vitamin B12. The correct option for first blank is B, and for second one is A.
What are vitamins?A vitamin is an organic molecule that is an essential micronutrient that an organism requires in small amounts for proper metabolism function.
Fat-soluble vitamins are stored in the liver, fatty tissue, and muscles of the body. Vitamins A, D, E, and K are the four fat-soluble vitamins.
Water-soluble vitamins do not accumulate in the body. Vitamin C and all of the B vitamins are among the nine water-soluble vitamins.
As per the given scenario, The best source of vitamin C is strawberries, while fish is naturally rich in vitamin B12.
Thus, the correct option for first blank is B, and for second one is A.
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A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass
number is
Answer:
The mass number is 56
Explanation:
You just add the number of protons and neutrons to find the mass number of a atom.
Long chains of amino acids are called?
Proteins
Fats
Lipids
Carbohydrates
Answer:
Proteins are long chains of amino acids
Explanation:
can u answer that question
Answer:
The synthesis of new proteins
What molecule is C6 H12 06?
ta ble salt
glucose
a protein
carbon dioxide
What will happen to the rate of
photosynthesis if a plant stops receiving
water?
A. The rate will increase.
B. The rate will decrease and eventually stop.
C. The rate will be unaffected.
The answer is B. Not A or C. B. Now go get it right
Answer: B. The rate will decrease and eventually stop.
Explanation:
When does
transcription
happen?
Answer:
Transcription begins when RNA polymerase binds to a promoter sequence near the beginning of a gene (directly or through helper proteins). RNA polymerase uses one of the DNA strands (the template strand) as a template to make a new, complementary RNA molecule. Transcription ends in a process called termination.
Explanation:
Transcription Initiation. The first step in transcription is initiation, when the RNA pol binds to the DNA upstream (5′) of the gene at a specialized sequence called a promoter (Figure 2a). In bacteria, promoters are usually composed of three sequence elements, whereas in eukaryotes, there are as many as seven elements ...
when RNA polymerase binds to a promoter sequence near the beginning of a gene
What is meant by altricial young?
Answer: Altricial young are born helpless and require care for a length of time. Altricial birds include herons, hawks, woodpeckers, owls, cuckoos and most passerines. For example, with ground-nesting birds such as ducks or turkeys, the young are ready to leave the nest in one or two days.
Explanation:
Which statement best describes enzymes?
A) They slow down the rate of breathing.
B) They are the building blocks of polymers.
C) They speed up the conduction of impulses along a nerve cell.
D) They influence the rate of chemical reactions.