Answer:
c. decrease rate of muscle activity
half life of plutonium-239 is 24,300 years. if a nuclear bomb released 8kg of this isotope, how many years would pass before the amt is reduced to 1kg
Answer:
8:2=4kg in 24.300 years
4:2=2 kg in other 24.300 years
2:2=1kg in other 24.300 years
Total time= 72900 years
Populations of caribou show a cyclical fluctuation with predictable patterns in Norway. Reindeer populations are higher in the
southern regions in winter months while populations are higher in the northern regions in the summer months. Infer the cause of
these predictable changes for the Norwegian reindeer populations.
-))
A)
B)
C)
Reindeer migrate from north to south in the winter months to reach more
fertile feeding grounds. They migrate to the north in summer months.
The reindeer migrate from north to south in the summer months to reach
more fertile feeding grounds. They migrate to the north in winter months.
The reindeer populations migrate to an intermediate location in Norway to
mate and then diverge to the northernmost and southernmost regions to
avoid competition for food.
There are two species of reindeer in Norway. The northernmost species
reproduces in the winter, causing an increase in population size. The
southernmost species reproduces in the summer, causing an increase in
population size.
D)
Answer:D
Explanation:
Polo g the goat
Answer:
the correct answer is a
Explanation:
What is the benefit of water for a living being?
It’s common to hear that water is essential for your health. But why?
This substance makes up a majority of your body weight and is involved in many important functions, including:
Flushing out waste from your bodyRegulating body temperature Helping your brain functionYou get most of your water from drinking beverages, but food also contributes a small amount to your daily water intake.
Read on to learn more ways water can help improve your well-being.
1. It helps create saliva
Water is a main component of saliva. Saliva also includes small amounts of electrolytes, mucus, and enzymes. It’s essential for breaking down solid food and keeping your mouth healthy.
2. It regulates your body temperature
Staying hydrated is crucial to maintaining your body temperature. Your body loses water through sweat during physical activity and in hot environments.
3. It protects your tissues, spinal cord, and joints
Water consumption helps lubricate and cushion your joints, spinal cord, and tissues. This will help you enjoy physical activity and lessen discomfort caused by conditions like arthritis.
4. It helps excrete waste through perspiration, urination, and defecation
Your body uses water to sweat, urinate, and have bowel movements.
Sweat regulates body temperature when you’re exercising or in warm temperatures. You need water to replenish the lost fluid from sweat.
5. It helps maximize physical performance
Drinking plenty of water during physical activity is essential. Athletes may perspire up to 6 to 10 percent Trusted Source of body weight during physical activity.
Hydration also affects your strength, power, and endurance.
6. It helps prevent constipation
Eating fiber isn’t the only way to prevent constipation. It’s also important to maintain your water intake so your bowel movements contain enough water.
7. It aids in digestion
Contrary to what some believe, experts confirm drinking water before, during, and after a meal will help your body break down the food you eat more easily. This will help you digest food more effectively and get the most out of your meals.
8. It helps with nutrient absorption
In addition to helping with food breakdown, water also helps dissolve vitamins, minerals, and other nutrients from your food. It then delivers these vitamin components to the rest of your body for use.
9. It helps you lose weight
Studies have linked body fat and weight loss with drinking water in both overweight girls Trusted Source and women. Drinking more water while dieting and exercising may just help you lose extra pounds.
10. It improves blood oxygen circulation
Water carries helpful nutrients and oxygen to your entire body. Reaching your daily water intake will improve your circulation and have a positive impact on your overall health.
11. It helps fight off illness
Drinking enough water can help prevent certain medical conditions Trusted Source.
Water also helps you absorb important vitamins, minerals, and nutrients from your food, which will increase your chances of staying healthy.
12. It helps boost energy
Drinking water may activate your metabolism. A boost in metabolism has been associated with a positive impact on energy level.
One study found that drinking 500 milliliters of water boosted the metabolic rate by 30 percent in both men and women. These effects appeared to last over an hour.
13. It aids in cognitive function
Proper hydration is key to staying in tip-top cognitive shape. Research Trusted Source indicates that not drinking enough water can negatively impact your focus, alertness, and short-term memory.
14. It helps improve mood
Not getting enough water can also affect your mood. Dehydration may result in fatigue and confusion as well as anxiety.
15. It helps keep skin bright
Adequate water intake will help keep your skin hydrated and may promote collagen production. However, water intake alone isn’t enough to reduce the effects of aging. This process is also connected to your genes and overall sun protection.
16. It prevents overall dehydration
Dehydration is the result of your body not having enough water. And because water is imperative to so many bodily functions, dehydration can be very dangerous.
Severe dehydration can result in a number of severe complications, including:
Swelling in your brain Kidney failure Seizures
Lengthy, but quite informative.
Hope you found this helpful!
THANK YOU!!
∝ Sidhdi
Can the ecosystem survive without light? Why or why not?
Answer:
No
Explanation:
Because plants prepare their food form photosynthesis and sun light is basic element for that process to take place. So without sunkight the plants would die and due to their extinction herbivorous animals would die eventually and then the other animals depending upon herbivorous will also die due dissapearence of their food
In guinea pigs, rough coat (R) is dominant to smooth coat (r). What is the expected percentage of smooth-coated guinea
pigs when a heterozygous rough-coated guinea pig is crossed with a smooth-coated guinea pig?
A. 0%
B. 25%
C. 50%
D. 75%
Flowering plants and pollinators, such as bees, have adapted together over time in ways that enhance each other's survival. The bee obtains nectar from the flower How does the flower benefit from this relationship?
O It gains food
O
It is pollinated
O Its seeds are dispersed.
It receives growth hormones
HELP PLEASE!!!
Answer:
it is pollinated
............
Answer: it’s pollinated
Explanation:
i took the test lol
In clouds, water droplets that are too heavy to float form A. rain. В. dew C. thunder. Rescien
Answer:
The answer is C because - Water Droplets that are too heavy to float make Rain .
Explanation:
10. What is an entomologist?
Answer:
An entomologist is a person who studies, or is an expert in the branch of zoology. (A branch in zoology concerned with insects.)
Explanation:
When a human egg is fertilized by a sperm, the resulting zygote begins the process of cell division that eventually results in an organism with trillions of cells. The image shows a mass of human cells at the eight-cell stage, shortly after fertilization.
What is the best description of these cells?
adult stem cells
adult stem cells
embryonic stem cells
embryonic stem cells
marrow cells
marrow cells
Answer:
hope this helps not sure tho
Explanation:
Fertilization is the union of a male and a female gamete that gives rise to a zygote that is the first cell of the organism. Fertilization occurs in the sexually reproducing organisms. After fertilization , the zygote undergoes continuous division and Gives rise to a mass of cell that later on differentiate into cells that assume specialized function, each group of specialized cell then gives rise to organ system of the organism.
(Q001) In Lab 2, Exercise 8, you determined the amino acid sequence for the following strand of DNA: A G C A A T C C G T C T T G G T C G T T A G G C A G A A C C That strand has mutated. It is now A G C A A C C C G T C T T G G T C G T T G G G C A G A A C C Use your knowledge of mutation and protein synthesis to answer the following questions. What mutation has occurred
The mutation that has occurred is substitution mutation.
Mutation is defined as the random changes in deoxyribonucleic acid (DNA) that alter genetic information, and so can introduce new characteristics.
Mutation can occur in because of the following reasons stated below:
When exposed to environment saturated with ultraviolet light, it can cause cell mutation; andWhen exposed to certain chemical such as free radicals.A typical example of mutation that occurs in DNA is the substitution mutation.
Protein synthesis is the process used by cells to produce usable specific proteins as directed by the DNA.
The base sequence in DNA determines the sequence of amino acid in peptide.
Substitution mutation occurs when one base is incorrectly replaced in the complementary strand of a DNA.
From the DNA base sequence given,
Cytosine replaced Thymine; andGuanine replaced Adenine.This replacement that occurred will lead to abnormal protein synthesis.
Learn more here:
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Observe how deeply in the agar your organism grew. Is there growth on the surface? Where is the majority of the growth located? Remember that your unknown organism was inoculated all the way to the bottom of the tube initially, so there may be bacteria visible along the whole inoculation line. But evaluate where you see the most growth.
Answer:
Near the bottom.
Explanation:
The organism grew deep in the agar solution near to the bottom of the petri dish. No, the growth occurs at the bottom of the agar solution because the bacteria does not need oxygen and can survive in anaerobic condition. Majority of the growth located at the sides of the petri dish in the form of colonies. The most growth of bacteria occurs at the bottom of the medium.
I WILL GIV BRAINLYIST
Sort the sentences based on the type of relationship they describe.
Sea lampreys hatch eggs on
fish and feed on the fish.
Clown fish help sea anemones
catch prey while using the sea
anemones for protection.
Mosquitoes suck blood from
the bodies of organisms.
Ants provide protection to
acacia trees while receiving
nutrients from the trees.
Answer:
Sea lamprey sentence: Parasitism
Clown fish sentence: Mutualism
Mosquitoes sentence: Parasitism
Ants sentence: Mutualism
Explanation:
Parasitism is when one organism benefits and the other is harmed.
Mutualism is when both organisms benefit.
Answer:
answered so you can give the other person brainliest :)
Explanation:
See above diagram, a represents
Options
water
glucose
oxygen
CO2
Answer:
water
coz the process begins in stroma
A student was explaining to the class about freshwater and the importance that it has to everyone’s life. What is NOT true about freshwater biomes?
A.
Freshwater biomes are found all over the world
B.
There is a wide variety of climates that have freshwater biomes
C.
There are different types of bodies of freshwater biomes
D.
They have more than 5% salt content
Answer:
D.
They have more than 5% salt content
PLEASE HELP ASAP
how does the ribosome read the mRNA?
Answer:
A ribosome is made up of two basic pieces: a large and a small subunit. During translation, the two subunits come together around a mRNA molecule, forming a complete ribosome. The ribosome moves forward on the mRNA, codon by codon, as it is read and translated into a polypeptide (protein chain).
Explanation:
A lever used to lift a heavy box has an input arm of 4 meters and an output arm of 0.8 meters. What is the MA of the lever?
Answer:
Mechanical advantage = 5
Explanation:
Given the following data;
Length of input arm = 4 meters.
Length of output arm = 0.8 meters.
To find the mechanical advantage;
[tex] Mechanical \; advantage = \frac {Length \; of \; 1nput \; arm}{Length \; of \; 0utput \; arm} [/tex]
Substituting into the formula, we have;
[tex] Mechanical \; advantage = \frac {4}{0.8} [/tex]
Mechanical advantage = 5
Which of the following best explains how the prokaryotic expression of a metabolic protein can be regulated when the protein is already
present at a high concentration?
Answer:
A. Repressor proteins can be activated and bind to regulatory sequences to block transcription.
Explanation:
its A
The best explanation for the prokaryotic expression of a metabolic protein is repressor proteins can be activated and bind to regulatory sequences to block transcription.
What are metabolic proteins?Protein helps with growth and repair. Proteins have the potential to serve as a metabolic fuel source in addition to all of these important functions.
Excess proteins must be converted into glucose or triglycerides and used to provide energy or build energy reserves because proteins cannot be stored.
Thus, the correct option is A.
Learn more about metabolic proteins
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Both liver cells and lens cells have the genes for making the proteins albumin and crystalline. However, only liver cells express the blood protein albumin and only lens cells express crystalline, the main protein in the lens of the eye. Both of these genes have enhancer sequences associated with them. The claim that gene regulation results in differential gene expression and influences cellular products (albumin or crystalline) is best supported by evidence in which of the following statements?
A. Liver cells possess transcriptional activators that are different from those of lens cells.
B. Liver cells and lens cells use different RNA polymerase enzymes to transcribe DNA.
C. Liver cells and lens cells possess the same transcriptional activators.
D Liver cells and lens cells possess different general transcription factors.
Answer:
the answer is A liver cells possess transcriptional activators that are different from those of lens cells
Explanation:
If an animal has 21 chromosomes before replication, how many do they have after?
Answer:
Animals usually have 22 pairs of homolog chromosomes (autosomes) and as sex chromosomes 2 x chromosomes (in female), or 1 x and 1 y chromosome (in males), thus in total 46 chromosomes per body cell (see human karyogram; 2n = 46) and 92 chromatids per cell after replication.
Explanation:
42
Describe how each of the
following are evidence for Continental Drift
1. Fossils
2. Landforms
3. Rock Formations
4. Climate
Answer:
idek sorry
Explanation:
Is a virus prokaryotic or eukaryotic?
eukaryotic
can be both
neither
CH3
CH2-CH2-CH-CH2-CH?
1
1
OH
Name the compound
Answer:Alkene
Explanation:
Answer:
Cyclohexanol
Explanation:
C₆H₁₁OH = CH₃CH₂CH₂CH CH₂CH OH
Two organisms would be most closely related if both have the same classification in which of the following groups?
0
Kingdom
o Phylum
Class
0 Species
Answer:
Kingdom!
Explanation:
what is required for the initiation of an enzyme
Answer:
RNA poly merase
Explanation: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.
5. DQ 5 Which of the following is NOT a class of clastic rock?
A.fossil
B.conglomerate
C.sandstone
D.shale
Answer:
B.conglomerate us not a class of clastic rock
What are some ways that oceans influence climate change?
Answer:
Answer is below.
Explanation:
The oceans influence climate by absorbing solar radiation and releasing heat needed to drive the atmospheric circulation, by releasing aerosols that influence cloud cover, by emitting most of the water that falls on land as rain, by absorbing carbon dioxide from the atmosphere and storing it for years to millions of years.
Hope this helps:)
ANSWER: the oceans influence climate by absorbing solar radiation and releasing it is needed to drive the atmospheric circulation by releasing a resource that influence cloud cover by a meeting the most of the water that falls on land as a by absorbing carbon dioxide from the atmosphere and storing it for years to millions of years ii.
Explanation: hope it helps
can someone help???? Question: In what domain would humans be included?
A Eukarya
B Archea
C Bacteria
Answer:
A Eukarya
Explanation:
Answer:
A Eukarya
explanation: Eukaryotes are organisms whose cells have a nucleus enclosed within a nuclear envelope
Which of the following best describes a plant?
(A) multicellular eukaryote
(B) multicellular prokaryote
(C) unicellular eukaryote
(D) unicellular prokaryote
Answer:
The correct option to describes prokaryotes and eukaryotes are B. Prokaryotes do not have a nucleus; eukaryotes have a nucleus. .
Explanation: The prokaryote cells do not have a nucleus whereas eukaryotic cells have distinct a nucleus
Calculate the Speed - Distance = 75 miles Time = 25 minutes
A 75 mi/min
B 1875 mi/min
C 5 mil/min
D 3 mi/min
Answer:
D. 3 mi/min
Explanation:
Given:
Distance = 75 miles
Time = 25 minutes
Required:
Speed
Solution:
Formula for calculating speed = distance covered / time
Therefore:
Speed = 75 miles / 25 minutes = 3 mi/min
fehlings A and B ........
Answer:
what?
Explanation:
I can help but I don't understand your question