Alexis has a plant with white spots on it. He thinks it might have a chemical burn. What should he do?
a Add commercial fertilizer with Calcium
B. Add commercial fertilizer with Potassium
C. All of the above
D. Dilute the fertilizer with water
In 3-5 sentences explain, why when DDT was released for insect control it had to be banned in 1972 and what this phenomenon is an example of.
DDT was banned after it was released for insect control due to the following reasons:
Threat to human livesThreat to wildlifeHas side health effectWhat is DDT?It is a colourless and odourless chemical substance. It full meaning is Dichlorodiphenyltrichloroethane.
It is an organic compound originally produced as insecticides to control insects
It was later banned in 1972 for use dues to its negative effects in the environment, humans and animals.
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What are some ways that dioxins affect health? What is AhR and what does it do?
Answer:
Dioxins are highly toxic and can cause cancer, reproductive and developmental problems, damage to the immune system.
The aryl hydrocarbon receptor is a protein best known for its role in mediating toxicity.
The AhR has roles in regulating immunity, stem cell maintenance, and cellular differentiation.
Explanation:
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How is photosynthesis different than cellular respiration?
A. The process involves oxygen
B. The process involves light
C. The process involves carbon dioxide
D. The process involves water
Answer:
b
Explanation:
basic bio
How does the sociocultural approach view the importance of ethnicity, gender, culture, and socioeconomic status in the development of personality?
Answer:
individualism and collectivism. Personalities are not influenced by cultural setting. Culture, gender, and ethnicity contribute to the development of personality according to the sociocultural approach. ... Sociocultural theorists would agree that family and environment are key factors in personality development.--teya
What exaclty is a mutation?
Answer:
A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.
If an mRNA codon reads GAU, its complementary
anticodon on the tRNA will be
A. TUC
B. CUA
C. AUG
D. CAG
Where can tephra be found?
Answer:In the troposphere
Explanation:
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Which of the characteristics describe energy-carrier molecules?
can be coupled to energy-requiring reactions within a cell to help drive the reactions forward
accumulate in large quantities within a cell for long-term storage of energy
are quickly broken down once the molecules release their energy
include molecules, such as ATP, that contain high-energy chemical bonds
are generated when macromolecules, such as proteins, are broken down
Answer:
are quickly broken down once molecules release their energy
Explanation:
The characteristics of energy-carrier molecules are that they are quickly broken down once the molecules release their energy, which isoption. Energy-carrier molecules, like ATP, are quickly broken down into ADP (adenosine diphosphate) and inorganic phosphate (Pi) once they release their energy.
Energy-carrier molecules, such as ATP, store energy in high-energy chemical bonds. When these bonds are broken, energy is released and can be used for cellular processes.Energy-carrier molecules are not typically generated when macromolecules, such as proteins, are broken down. Energy carriers like ATP are produced through cellular respiration, primarily in processes such as glycolysis, the Krebs cycle, and oxidative phosphorylation.
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1 How long after the formation of Earth did the first life appear?
2 Suggest how we know when the different kinds of organisms first appeared on
Earth.
Fears ago
mple animal-like
red.
3 Up to about 3000 million years ago, there was no oxygen in the Earth's
atmosphere. Today, about one fifth of the atmosphere is oxygen gas.
Use the information on page 6 to suggest what caused this change.
Answer:
1.After 10 years
2.we have our ancestors who see it
3.the change was caused by the trees and the good nature surrounds our planet
Note that science believe that every living organisms on earth is made by bacteria
Help me please I only have 5 minutes left
Earth and space
What’s a common element among personality
A) they’re administered by psychologist
B) they’re self-reporting
C) there all scientific
D) they all use common formula
Answer:
They all use common formula
10 Elements with symbols other than their first two letters
Answer:
Sodium (Na – Natrium)
Potassium (K – Kalium)
Iron (Fe – Ferrum)
Copper (Cu – Cuprum)
Silver (Ag – Argentum)
Tin (Sn – Stannum)
Antimony (Sb – Stibium)
Tungsten (W – Wolfram)
Gold (Au – Aurum)
Mercury (Hg – Hydrargyrum)
Explanation:
In most normal human somatic cells, telomeres shorten with each division.
a. True
b. False
Which of these are recommended for preventing some std/sti’s
Answer: condom is a very good way to prevent stis
Explanation:
where is glucose stored or found in the leaf?
Ecosystem function relies on the flow of nutrients from one _________ to another in a cycle. Group of answer choices Country Chemical Reservoir Species Altitude
Ecosystem function is highly dependent on the flow of nutrients from one species to another in a cycle.
What is an ecosystem?An ecosystem refers to a biological community that typically consists of both living organisms (biotic factors) and the physical environment (abiotic factors) in which they interact.
What is a species?A species can be defined as a biological classification of related organisms with similar characteristics that are capable of breeding with one another in a cycle.
Generally, the proper functioning of an ecosystem is highly dependent on the flow of nutrients from one species to another in a cycle and as such determines their ability to survive.
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Help please
ASAP
Earth and space
Answer: a, suspension
Explanation:
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1. Types of reproduction in microorganisms and examples
2. Which bacteria could be neutralophile?
3. Which microorganisms in your body may be halophiles?
4. Classification according to how they obtain carbon.
Answer no. 1:
1) binary fission or splitting into two cells (like bacteria)
2) budding or developing outgrowths (like yeast)
3) reproduction using gametes to recombine DNA (like Plasmodium)
4) mitosis, eukaryotic cell division, similar to binary fission (like the micronucleus of the ciliates)
Answer no. 2:
Sorry, don't have any idea.
Answer no. 3:
Most human intestinal halophilic and halotolerant prokaryotes belong to the Firmicutes, Proteobacteria, and actinobacteria phyla.
Answer no. 4:
Carbon can be classified as primary, secondary, tertiary, or quaternary depending on the number of carbon atoms it is bonded to.
Hormone levels being controlled through body fluids is called
A. hormonal control.
B. neural control.
C. humoral control.
D. thyroid control.
Answer: C.
Explanation:
Hormone levels being controlled through body fluids is called humoral control
How do green plants produce their own food?
Answer:
Photosynthesis
Explanation:
The process by which land plants produce their own food using sunlight and carbon dioxide is known as photosynthesis. The leaves of green plants contain chlorophyll, which absorbs sunlight for producing food. This food is then used by the plant itself as well as other animals, including humans.
In the above diagram of a plant cell, what is the function of structure 1?
A.
captures light energy and performs photosynthesis
B.
is the site of protein and lipid synthesis and controls cell transport
C.
contains genetic information and serves as the control center of the cell
D.
serves a variety of secretory, excretory, and storage roles
Answer:
C.
contains genetic information and serves as the control center of the cell
Explanation:
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Evidence for coordinated stasis is found in _____.
Answer:
Evidence for coordinated stasis is found in the fossil record.
Explanation:
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What would happen if someone injected tapwater directly into their blood stream?
Answer:
cause your blood cells to become hypotonic possibly leading to death.
Answer:
The plasma will get diluted and it would cause blood cells to become hypotonic which could lead to death. But, the bigger issue is that you're using tap water which is not considered sterile and could lead to infections and other problems
Explanation:
How many amino acids must be obtained in the diet because they cannot be made by the body? 2 5 10 20How many amino acids must be obtained in the diet because they cannot be made by the body? 2 5 10 20
Answer:
C or 10
Explanation:
he discovery of mitochondrial DNA (mtDNA) had no effect on which area of scientific investigation?
Answer:
A diseased cell is no longer able to produce proteins.
Explanation: The discovery of mitochondrial DNA (mtDNA) had no effect on the study of cork bark.
Why do you get a sugar rush immediately after
eating candy?
A. because your LIVER is working to detoxify the candy before it
poisons you
B. because candy is composed primarily of STARCHES which are
quickly broken down by enzymes
C. because your taste buds are reacting to the candy and are
overwhelmed by how good it tastes
D. because candy is composed primarily of SIMPLE SUGARS which
are quickly broken down by enzymes
Answer: D because candy is composed primarily of SIMPLE SUGARS which are quickly broken down by enzymes
Explanation: The sugar in it -- called a simple carbohydrate -- is quickly turned into glucose in your bloodstream. Your blood sugar levels spike. Simple carbs are also found in fruits, veggies, and dairy products.
Answer:
Your answer is D.
Explanation:
Describe three ecological benefits of preserving rainforest ecosystems discussed in the
lesson
Answer:
Explanation:
Benefits of rainforest ecosystems. 1. Preservation of species. Because they are so biodiverse, healthy rainforest ecosystems are the perfect places to preserve huge numbers of species that would otherwise be endangered.
Rain forest ecosystem have several advantages like preserve species, biodiversity is high etc.
what are the types rainforest ecosystem ?
The major constituents of a rainforest ecosystem are tall evergreen trees, it is formed due to heavy annual rainfall, high temperature, poor quality soil and rich in biodiversity.
There are different types of rain forest such as Tropical rainforests which is present near to the equator, the climate is hot and humid.
Temperate rainforests present in extreme temperate zones, close to coastal areas and the climate is cooler than tropical rainforests.
Third is Flooded forest where dry forest can be flooded by heavy rains or due to tidal river surrounding the forest, climate is highly humid.
Lowland rainforests refers to either tropical or temperate present near to valley. Cloud forests or Montane rainforests is located on the top of mountain top, partially in cloud.
Finally, mangrove forests are also called as mangrove swamps, trees are waterlogged ground.
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The nose plays many important roles in the conduction of air into the lungs. Air entering the nose from the body’s exterior is very different from the air within the body and lungs. All BUT ONE describes how incoming air is changed by the structure of the nose and nasal passages.
A) As air passes over the mucous membranes, it is warmed and humidified.
B) The olfactory epithelium contain neurons, which conduct sensory signals to the brain.
C) Hairs and mucus on the interior of the nose also catch any solid debris before it can enter the lungs.
D) The convoluted inner structure of the nose increases the surface area of the respiratory tract and forces air to contact the mucous membranes lining the nasal cavity.
C) Hairs and mucus on the interior of the nose also catch any solid debris before it can enter the lungs.
CSI Miami: Using DNA to Solve a Robbery
The year is 2023. You are a detective for the Miami Dade Police Department. You’re on the scene of a crime where a man single-handedly just robbed a bank. Luckily, being the ingenious detective that you are, you were able to find a little spot of the man’s blood where he cut his arm as he made his escape through a broken window. You take the blood to the lab so tests can be run.
Unfortunately, no one was able to see the face of the man, so there are no suspects yet. Thanks to a study done in 2022, scientists have now figured which genes in DNA code for which characteristics in a person.
On the next page is a strand of the sample of DNA extracted from the blood at the crime scene. Follow the steps below to help you come up with a sketch of the man who perpetrated this crime.
methionine-leucine-proline = Protein that causes DARK SKIN
methionine-leucine-leucine = Protein that causes LIGHT SKIN
valine-proline-proline-lysine = Protein that causes GREEN EYES
proline-leucine-valine-proline = Protein that causes BLUE EYES
proline-lysine-proline-proline = Protein that causes BROWN EYES
lysine-arginine-threonine-valine-serine-serine = BLOND HAIR
lysine-arginine-threonine-valine-serine-cystine = BLACK HAIR
lysine-arginine-threonine-valine-serine-valine = BROWN HAIR
asparagine-isoleucine-arginine = CURLY HAIR
asparagine-asparagine-isoleucine = STRAIGHT HAIR
leucine-arginine-glutamic acid-arginine = BIG NOSE
leucine-asparagine-arginine-glutamic acid = SMALL NOSE
leucine-asparagine-asparagine-glutamic acid = MEDIUM NOSE
proline-tyrosine-tyrosine-(stop) = SMALL EARS
proline-proline-tyrosine-(stop) = MEDIUM EARS
proline-tyrosine-phenylalanine-(stop) = BIG EARS
Step 1: Decode the DNA into mRNA
Step 2: Decode the mRNA into the corresponding amino acids from pg. 211 of your book. Write the amino acids in the order of the codons from the mRNA.
Step 3: On a separate sheet of paper, draw a sketch of what this person might look like based on the traits you came up with.
DNA: TACGATGAAGGCAATCAAGGGTTCTCCTGTCAAAGTACATTATAGGCAGACTTAGCGGTTGGAATGAAAATC
| | |
AUG
mRNA:
Protein Sequence:
1. Methionine 2. 3.
4. 5. 6.
7. 8. 9.
10. 11. 12.
13. 14. 15.
16. 17. 18.
19. 20. 21.
22. 23. 24.
Step 4: Change the underlined nucleotide to a G. Refigure out your mRNA sequence and resulting amino acids. How would this mutation affect your picture? What kind of mutation did you just create?
Step 5: Answer the following wrap-up questions:
1) When you performed step 1, what enzyme were you imitating?
2) In step 2, what molecule would have brought the amino acids that the codons asked for?
3) In step 2, what molecule would have helped the amino acids line up and attach to one another?
4) In step 2, what connected the amino acids together?