Answer:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Explanation:
Hope this helped.
Answer:
Destruction of Natural Habitats
Explanation:
Which would be a result of a malfunctioning excretory system?
paralysis
memory loss
toxic buildup
difficulty breathing
Answer:
toxic buildup.
Explanation:
The excretory system has to do with excreting perilous, harmful materials from the body. If it malfunctions, these materials stay in the body. Therefore, the result of a malfunctioning excretory system would be toxic buildup.
Which process is the First step of protein synthesis
Answer:
transcription
Explanation:
transcription of DNA by tRNA is the first step of protein synthesis
Answer:
Transcription.
Explanation:
Both vegetable oil and butter are made up of fats.
Why is butter a solid at room temperature, while vegetable oil is a liquid?
A)Butter is a saturated fat and vegetable oil is an unsaturated fat.
В)
Butter is a polar molecule and vegetable oil is a nonpolar molecule.
C) Butter is an unsaturated fat and vegetable oil is a saturated fat.
D) Butter is a nonpolar molecule and vegetable oil is a polar molecule.
Answer:
A
Explanation:
Butter, as good as it is, is not exactly good for us. Butter is an animal fat, or a saturated fat. This means that at room temperature these fats will remain solid. There is some science behind it and ill say this quickly, it has to do with the carbon atoms being packed with hydrogen atoms. This allows them to intertwine and be solid. The Vegetable Oil being unsaturated, a plant fat, is good for us! These are missing some of the atoms needed to make them stand up straight and be solid. So these are always liquid at room temperature! :)
We have that for the Question "Both vegetable oil and butter are made up of fats. Why is butter a solid at room temperature, while vegetable oil is a liquid?"
Answer:
Option A is the correct answer(Butter is a saturated fat and vegetable oil is an unsaturated fat)
Explanation:
Butter contains more saturated fat., vegetable oil contains more unsaturated fat.
Melting point of Saturated fat less than melting point of Unsaturated fat
Intermolecular interactions in saturated fats greater than Intermolecular interactions in Unsaturated fats
Saturated molecules are so close and forms a solid. UnSaturated molecules are not so close and forms a liquid at room temperature
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Question 1
2 pts
The bond that forms between two glucose molecules are called
1. Peptide bonds
2. Ester bonds
3. Phosphodiester bonds
4. Glycosidic bonds
5. Hydrogen bonds
Answer:
Glycosidic Bonds
Explanation:
Glycosidic Bonds are a type of covelant bond that form between two or more 5 carbon sugar macro-molecules(like glucose). Hydrogen bonds are an attraction between hydrogen atoms, not a real sharing or trading of electrons, as seen with ionic and covelant bonds, while they are essestial to life in water, they generally do not have a strong effect in the building of macromolecules. Therefore, that is incorrect. Phosphodiester, ester, and peptide bonds all occur between different macro-molecules, none of which include glucose(5 carbon sugar). Therefore, the answer is #4.
While working in a genetics lab over the summer, you isolated a true-breeding strain of wingless Drosophila. After sharing your results with your mentor, you learn that six other true-breeding strains of Drosophila with the same mutant phenotype have been isolated independently in your lab. Your mentor asks you to determine if the mutants belong to the same complementation group. What is true about flies that belong to different complementation groups? What would be the outcome of crossing two strains of wingless flies that belong to different complementation groups?
Answer:
=> There will be mutation of gene in each strain.
=> The offsprings are wild type.
Explanation:
So, we are given the following main or Important information or data which I going to assist us in solving this particular Question or problem:
=> There is an isolated a true-breeding strain of wingless Drosophila.
=> " six other true-breeding strains of Drosophila with the same mutant phenotype have been isolated independently in the lab."
Therefore, the flies that belong to different complementation groups will cause MUTATION TO OCCUR ON THE SAME GENE.
Mutation will occur because here we have dual but different genomes and when you take a look at these genomes they both have a trait of recessiveness and this combination of the genomes will cause the mutation.
Quick note: on the strain, occurence if different mutation might or might not occur.
Different plants need different fertilizers .for example ,roses need a fertilizer with lots of potassium in it.Which fertilizer would you recommend a rose grower to use from above mentioned?
Answer:
A rose grower should use Muriate of potash, Potassium sulfate, Potassium nitrate, Sulfate potash magnesia, Kainite etc.
Colocar la opción correcta.
a) La caña Colihue:
• Es un ejemplo de individuo y de organización Ecológica
• Es un ejemplo de organismo y pertenece a la organización Biológica
• Es un ejemplo de comunidad
• A y B son correctas
b) Las flores y los tallos:
• Son ejemplos de órganos
• Son ejemplos de organelas
• Son ejemplos de células
• Ninguna es correcta
c) El H20 es un ejemplo de:
• Atomo
• Molécula
• Organela
d) El nitrógeno es un ejemplo de:
• Molécula
• Atomo
• Partícula subatómica
e) El Bosque es un ejemplo de:
• Población
• Ecosistema
• Células vegetales
¡Ayuda, por favor!
Answer: A y B son correctas
Explanation:
how do plant get nutrients
Answer:
Processes. Plants take up essential elements from the soil through their roots and from the air through their leaves. Nutrient uptake in the soil is achieved by cation exchange, where in root hairs pump hydrogen ions (H+) into the soil through proton pumps
hope i helped !!
Answer:
water, sun, soil
Explanation:
Plants absorb nutrients and water through their roots, but photosynthesis occurs in the leaves. So, plants need to get fluids and nutrients from the ground up through their stems to their parts that are above ground level.
// have a great day //
Why use needle loop to prepare fungi slide??
Answer:
The needle loop is use to transfer fungi to a soft agar and this will cause or create more fungal growth to occur in the slide.
Explanation:
Needle loop is a tool or device use in microbiology to inoculate microorganisms like bacteria and fungi in media to boost their growth. It is use for sampling and transferring specimens or microorganisms into a media for further analysis, examination and serial dilution.
Every living organism begins life as a single
Answer: cell
Explanation:
Every living organism begins life as a single cell, usually called a zygote.
In humans, oculocutaneous (OCA) albinism is a collection of autosomal recessive disorders characterized by an absence of the pigment melanin in skin, hair, and eyes. That is, normal pigmentation (A) is dominant over albinism (a). For this question, assume it is a single gene with two alleles. Assume it is a single gene with two alleles. If two people have normal pigmentation, what possible phenotypes may be observed in their offspring?
Answer:
The definition of the problem is listed in the explanation segment below.
Explanation:
The parent phenotype is an albino on every one of them. Albino gene seems to be located primarily while it has its whole genotypes in such a recessive state called "aa". When this trait becomes autosomal, it does have an equivalent amount of alleles across both parent members. The gametes including its albino genotypes.⇒ [tex]Mother \ aa\times Father \ aa[/tex]
⇒ [tex]a\times a[/tex]
Genotype including its offspring - albino. Well, all offspring will also have albino phenotypes.So that the above is the right answer.
if the ratio of the ages of kisii and esinam is 3:5 and that of Esinam and Larry is 3:5 and the sum of the ages of all three is 147 years what is the age difference between the oldest and the youngest
Answer:
The age difference between the oldest and the youngest is 48.
Explanation:
Given the following data;
The ratio of the ages of Kisii (K) and Esinam (E) is 3:5.
The ratio of the ages of Esinam (E) and Larry (L) is 3:5.
The sum of the ages of all three is 147.
Since the age of Esinam is common in both ratios, we find the lowest common multiple (LCM);
LCM of 3,5 = 15.
Hence, the ratio of the three ages is now;
K:E:L = 9:15:25
Let their ages be denoted by x;
[tex]K:E:L = 9x:15x:25x[/tex]
The sum of all three ages is;
9x + 15x + 25x = 147
49x = 147
x = 147/49
x = 3.
To find the age difference between the oldest and the youngest;
The oldest is Esinam = 25x
The youngest is Kisii = 9x
Therefore, 25x - 9x = 16x
Substituting the value of x, we have;
x = 3; 16x = 16(3) = 48.
The age difference between the oldest and the youngest is 48.
What are the use of igneous rocks
Answer:
Igneous rocks have a wide variety of uses. One important use is as stone for buildings and statues. Diorite was used extensively by ancient civilizations for vases and other decorative artwork and is still used for art today. Granite is used both in building construction and for statues.
Iron+Oxygen->Iron Oxide (Rust) 2Fe+302->Fe302 Iron Oxide, formed from Iron and Oxygen, is a new: A.Element B.Atom C.Compound D.Solution
Answer:
Compound
Explanation:
Different elements react to form a compound
Lana was walking down the sidewalk looking at her phone and didn't notice the curb ahead. As she tripped her ankle turned inward (inversion). She heard a pop and had pain on the lateral side (outside) of her ankle and foot. Lana went to urgent care and was diagnosed with a 2nd degree lateral ankle sprain and fracture of her fibula (lateral bone in the lower leg). List all the types of tissues that have been affected by this injury. Which will likely heal slower, ligament or bone?
Answer:
ligament bcos ligament heal before bone
A ligament tear is an injury caused by an extreme motion, like a forceful twisting of a joint. A tear usually causes immediate pain and perhaps even a "pop" sound at the site of injury when it occurs. Depending on the severity of the injury, the affected site may become unstable.
What is Ligament?Ligaments are elastic bands of tissue that connect bones to each other and provide stability and strength to the joint. The four main ligaments in the knee connect the femur (thighbone) to the tibia (shin bone) and include the following: Anterior cruciate ligament (ACL).
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--- is the frame work of the
body of an organism.
(a)flesh (b)tongue (C)skeleton
(d)eye
Answer: C :Skeleton
Explanation: The skeleton is the frame work of the body of an organism. Among other functions the skeleton gives the body shape, support, rigidity and protect the body's delicate organs.
In this lecture you learned that due to ___________descent, organisms share many of the same genes and proteins. However, distantly related organisms have _______ DNA differences than closely related organisms.
Answer:
evolutionary
more
Explanation:
In this lecture you learned that due to evolutionary descent, organisms share many of the same genes and proteins. However, distantly related organisms have more DNA differences than closely related organisms.
Organic evolution general refers to the descents, with modification, of organisms from common ancestors. Hence, organisms that share the same ancestors share several similar genes and proteins due to their common lineage. The closer the organisms, the more similar their genes and proteins, and the distant the organisms, the more dissimilar their genes.
The maximum water vapor that air can hold at 30°C is about 30 grams/cubic meter. If the humidity of the air is currently 6 grams/cubic meter at
the same temperature, the relative humidity is %.
Answer:
20%
Explanation:
6 ÷ 30 × 100
1÷5 × 100
20%
RNA and dna are both what?
A. Made up of nucleotides and carry molecules from on end of a cell to another.
B. Monomers of protein molecules that provide structure to a cells nuclear membrane.
C. Protein molecules that carry the unique genetic information of an organism.
D. Molecules that contain genetic information and are made up of nucleotides.
Answer:
I think it is a
Explanation:
reaaallly need help!!
MULTIPLE CHOICE
Question 15
If a parent cell has 46 chromosomes, how many
chromosomes will be present in each daughter cell after
mitosis?
А
12.
B
23
46
D
9
2
Answer:
B
Explanation:
Its 23 in mitosis cell division
How digestive enzyme affected when people having high fever? Explain.
Higher the body temperature, it would disrupt the shape of the active site of the enzyme , which will reduce its activity, or prevent it from working. The enzyme will have been denatured also the protein which can also lead to death.
Answer:
When a person has high fever, it's body temperature increases.
When the temperature is too high, enzyme molecules vibrate vigorously causing it to lost it's shapes and active sites.
Then, started to denatured and eventually, the enzyme died and no longer able to function.
Look at the structure in the picture below What function does the structure have?
Answer:
The structure in the picture shows arms of an octopus.
An octopus has six or eight arms and perform several functions such as:
Octopus arms are helpful for walking in the ocean or water surface.Each arm has suc.kers that help to trap prey and defending them from attackers.Suc.kers on each ars help it to taste the food and even crack the hard shells of creatures in water.
Answer:
to move around
Explanation:
The Gram stain technique is valuable in distinguishing Bacteria from viruses whether or not a bacterium has pili. The flagella of a motile cell different types of bacteria based on cell envelope structure.
a. True
b. False
Answer:
False
Explanation:
Gram stain technique is a method use to classify bacteria into large groups base on their different cell wall components. It differentiate gram positive and gram negative by coloring them with red or Violet colors.
Gram stain is use for identification and classification of bacteria.
Gram positive stain violet due to presence of thick layers of peptidoglylcan in their cell walls and gram negative stain red due to thin layers of peptidoglylcan in their cell walls.
A biology teacher takes fish, algae, pond weed, invertebrates, and bottom muck from a local pond and establishes them in an aquarium. When the system is stable, the teacher seals it into a large, airtight glass box and leaves the box in a sunny location. After 3 months, the organisms in the aquarium appear alive and healthy. Which of the following statements about the experiment is NOT correct? For EACH one of the choices indicate if it is a correct or incorrect statement and explain why (the explanation MUST include the information covered in class)
A) During the 3 months, the biomass of plant life was greater than the biomass of animal life.
B) No energy has entered or left the glass box during the 3 months,
C) Some atoms from water molecules have become parts of organic molecules,
D) The air in the glass box contains carbon dioxide.
E) Some of the energy in the system has moved from one organism to another during the 3 months
Answer:
E
Explanation:
Some are heterotrophic and the other are autotrophic.
Some of the energy in the system has moved from one organism to another during the 3 months. Hence option E is correct.
What is aquarium?Aquarium is defined as any size tank with at least one transparent side used to house and display aquatic plants and animals. Like zoos, aquariums offer enjoyable leisure and amusement activities that also serve as locations for scientific research, education, animal care, and conservation.
Your fish may die if there are any significant temperature variations in their tank. Do not place your tank close to cooling vents or in a location that gets a lot of sunlight. A steady water temperature of 72°F to 82°F is required for freshwater fish, while 75°F to 80°F is ideal for saltwater fish.
Thus, some of the energy in the system has moved from one organism to another during the 3 months. Hence option E is correct.
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3. How do genes control the functioning of cells and our characteristics?
Answer:
A gene is a short section of DNA. your genes contain instructions that tell your cells to make molecules called protein
Answer:
Basically gene produces a functional product such as a protein which regulates the functioning of our cells via carrying out different processess.
Explanation:
Genes are short segments of our DNA that code for functional products such as proteins. Proteins basically do everything in your cells and your phenotype (what you look like and how you cells behave) everything is controlled by these functional products that a gene makes.
4. Compare and contrast aerobic cellular respiration and anaerobic cellular respiration: what are the steps of each and how much ATP is made in each step? What energy/electron carriers are made in each step, and how many? What types of organisms are used to make alcohol and yogurt, and what type of respiration is yogurt and alcohol making?
Answer:
Explanation below
Explanation
It should be understood that respiration is the process whereby organisms exchange gases with their environments.
And the two types are aerobic and anaerobic respiration.
Aerobic respiration is the type of respiration that occurs in the presence of oxygen, while the anaerobic respiration is the type of respiration that occurs in the absence of oxygen.
The examples of organisms that are used in making alcohol and yoghurt are Sacharomyces cerevisae, which is yeast, and Lactobacilli spp respectively.
Why is ATP used as an active energy source over glucose?
True or False: Cells will generally divide when they're too large
Answer:
true
Explanation:
the cell becomes two
Yes, this statement is TRUE cells will generally divide when they're too large
Why do cells divide when they get too big?The larger a cell becomes, the more demands the cell places on its DNA. If the cell grows too large, it will have trouble moving enough nutrients and wastes across the cell membrane.
When cells will generally divide?The mitotic phase follows interphase. Mitosis is nuclear division during which duplicated chromosomes are segregated and distributed into daughter nuclei. Usually the cell will divide after mitosis in a process called cytokinesis in which the cytoplasm is divided and two daughter cells are formed.
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Consider a simplified metabolic model to describe nitrogen metabolism in the body. Nitrogen is ingested in the food (F), a fraction of which is actually absorbed (A), the remainder being lost in the feces (W). The absorbed nitrogen is taken up by the muscle to make protein. At small fraction of the stored muscle protein undergoes degradation and the liberated nitrogen (L) is released from the muscle. Of the liberated nitrogen, a fraction is recycled back to the muscle (R), while the rest is lost to excretion (E) in the urine
The given question is incomplete, the complete question is:
Consider a simplified metabolic model to describe nitrogen metabolism in the body. Nitrogen is ingested in the food (F), a fraction of which is actually absorbed (A), the remainder being lost in the feces (W). The absorbed nitrogen is taken up by the muscle to make protein. At small fraction of the stored muscle protein undergoes degradation and the liberated nitrogen (L) is released from the muscle. Of the liberated nitrogen, a fraction is recycled back to the muscle (R), while the rest is lost to excretion (E) in the urine. If the nitrogen ingested in food is 100 g/day, but only 80% of the food is actually absorbed, while the rest goes to waste, what is the amount of nitrogen lost by excretion? Assume steady-state. Of the nitrogen liberated from muscle, 90% is excreted, while the rest is recycled, what fraction of the nitrogen entering the muscle is from the absorbed food? (In other words, what is the ratio A/(A+R)). Again, assume steady-state
Answer:
The amount of nitrogen lost in the process is 20 grams in a day and the fraction of nitrogen entering the muscle is 0.909.
Explanation:
Based on the given question, the amount of nitrogen absorbed is 80 percent of 100 grams, that is,
100*(80/100) = 80 grams in a day.
The concentration of nitrogen lost in the process is,
Nitrogen ingested-nitrogen absorbed = 100-80 = 20 grams in a day.
Let us assume that all the ingested nitrogen is liberated from the muscle. Therefore, 80 grams of nitrogen is liberated. If 90 percent of the nitrogen liberated from the muscle get excreted, then the value of excreted nitrogen will be,
90% of 80 grams = 90/100*80 = 72 grams
Now the nitrogen recycled will be,
Liberated nitrogen - excreted nitrogen = 80-72 = 8 grams
From the absorbed food, the fraction of the nitrogen entering the muscle will be,
80/(80+8) = 80/88 = 0.909.
