Answer:
A chromosome is a single, long molecule of DNA. These highly organized structures store genetic information in living organisms. Small sections of the chromosome, called genes, code for the RNA and protein molecules required by an organism.
How many neutrons does the element sodium (Na) contain?
a
12
b
11
c
13
d
23
Answer:
a) 12 neutrons
Explanation:
The atomic mass is 22.990, which can be rounded to 23 and is the combination of protons and neutrons. The atomic number is 11 (protons), and 23-11=12, whoch would be the neutron number
Hope this helps :)
I've been stuck on this question for quite a while now need some help best if I can get an answer with explanation
Answer:
B is most probably the right answer since it has the both hydrophollic and characteristics.
Not 100% sure though
How are the functions of a cell similar to the functions of an organ system?
Answer:
Organelles in a cell are essentially the same as organs in an organism. The mitochondria is the powerhouse of the cell, as we all know. It creates ATP, which is what gives the cell energy. This is similar to how we consume food and create energy from it. Cell membranes are similar to skin, as they keep needed things in, and unwanted things out. Our cells need water too, as it helps create the cytoplasm. We need water to keep us alive and well, as it helps to create many of our needed bodily fluids, and rid us of toxins.
Messenger RNA (mRNA) contains the instructions for —
A. building mitochondria
B. protein assembly
C. DNA replication
D. RNA synthesis
What is the relationship between the biodiversity of an ecosystem and its
ability to rebound from disturbance?
A. A biodiverse ecosystem is not affected in any way by disturbance.
B. A biodiverse ecosystem harbors many interactions, thus a
disturbance may impair some interactions, but not all.
C. The relationship between the biodiversity of an ecosystem and its
ability to rebound from disturbance is unknown.
D. A biodiverse ecosystem has so many interactions that the
slightest disturbance will destroy it.
Answer:
B. A biodiverse ecosystem harbors many interactions, thus a disturbance may impair some interactions, but not all.
Explanation:
Biodiversity is the variation of life forms in an environment. This is as a result of available nutrient and energy to support the various life forms.
The relationship between biodiversity and rebound from disturbance is such that a biodiverse ecosystem is able to resist any change. The disturbance might affect proportion of the populace. But on the long organisms can survived and be propagated again.Answer:
B is correct just did the quiz
Explanation:
What are brown fields
Answer: In urban planning, brownfield land is any previously developed land that is not currently in use that may be potentially contaminated.
Explanation:
Which phrase best describes how scientists use the data they collect? A. to prove that a scientific hypothesis is correct B. To convince students to repeat their experiments C. To decide is there is support for an experiment's conclusions D. To persuade people to believe the same things
Answer:
Me personally, I would choose B because we're always thought to record our data and steps on how to get the same result over and over again. Without the data, you wouldn't be able to understand what you should be looking for or seeing if it'll happen again.
Explanation:
P.S good luck.
a, b, c, d. first to answer gets brainliest
Answer:
I'm pretty sure the answer is C
Explanation:
Sorry if wrong.
Each group of three mRNA bases specifies a particular
A.nucleic acid.
B. protein.
C.amino acid.
D.gene.
Answer: C its Amino Acid
Explanation:
Answer:
Amino acids
Explanation:
Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble—in order—the chain of amino acids that form a protein. Figure 2: The amino acids specified by each mRNA codon.
What are some adaptations that help animals live in the alpine biome survive
Hii!! The correct answer is: They hibernate, migrate to warmer areas, insulate their bodies with fat and fur, and tend to have shorter legs, tails, and ears in order to reduce heat loss. (:
The following question's answers are:
Describe the weather conditions that characterize the chaparral biome.
hot and dry summers
mild winters
most rain comes in winter
Interogenes are genes that cause a cell to continuously divide. These genes are usually targeted by doctors who are trying to stop tumors from developing. If a doctor wanted to prevent mutations that cause interogenes from being copied, which part of the cell cycle would the doctor be trying to prevent?
Answer:
you get 50% form you mom and 50% form dad
Explanation:
because
If the pituitary is so important and Eric is not getting replacements of hormones the pituitary makes (except for ADH), why isn’t he dead? To answer this question, think through the cascade of events from hypothalamus to effect.
Answer:
The absence of ADH is not too dangerous.
Explanation:
If there is no place for the storage of ADH hormone in the pituitary hormones, no death occur of the individual because ADH is related to the conserve of fluid in the blood. If this hormone fails to perform its function properly, it causes the body to retain too much water. This more water retention may cause you to feel heavier than normal, and less active so the person did not die due to the deficiency of this disease.
Cells carry out respiration continuously because all living things need a constant supply of _________________________________.
A Food
B Water
C Energy
D Oxygen
When are gametes produced in animals?
A.When diploid cells go through meiosis and cell division
B.When diploid cells go through mitosis and cell division
C.When haploid cells go through meiosis and cell division
D.When haploid cells go through mitosis and cell division
Answer:
D I think
Explanation:
Explain the relationship between crossing over
and genetic variation.
The diagram below illustrates the movement of glucose across a cell membrane. Which two processes are most directly represented in this diagram?
Answer: molecule transport and energy use
Explanation: I got the answer from castle learning
Which of the following structures is not part of a nucleotide of DNA? *
Deoxyribose sugar
Nitrogenous base
Ribose sugar
Phosphate group.
Answer:
I believe it phosphate group
Explanation:
match the function to the blood vessels
the words are
capillary
artery
vein
the definitions
Carries blood back to the heart
carries blood away from the heart
connects arteries and veins
Answer:
1.capillary- connects
2.artery-away from heart
3.vein- returns blood
Answer:
1.capillary- connects
2.artery-away from heart
3.vein- returns blood
Explanation:
Got it right edge
Which of the following is true about environmental tobacco smoke (ETS)?
Adults are more heavily exposed to ETS than children.
ETS accelerates the buildup of plaque in the heart and blood vessels.
ETS is responsible for more lung cancer deaths than heart disease deaths
annually.
O ETS has fewer carcinogens, tar, and nicotine than mainstream smoke.
The statement 'ETS accelerates the buildup of plaque in the heart and blood vessels' is TRUE about environmental tobacco smoke (ETS). it is harmful to health.
What is environmental tobacco smoke (ETS)?Environmental tobacco smoke (ETS) refers to the smoke present in an environment due to cigarettes, which may be harmful to health.
It has been shown that environmental tobacco smoke (ETS) contains carcinogenic substances.
Moreover, nocive substances in environmental tobacco smoke (ETS) can also enter the body through respiration and travels in the circulatory system.
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What are your thoughts on the virtual frog dissections compared to an in-person dissection? Explain. PLEASEEEEE HELP ITS DUE TONIGHT PLSSSSSSS
Answer:
I would rather watch it in person because then i could touch it but over the screen would be hard to watch. I not really sure why it would be different for me but it is. so my answer would be to see it in person.
Explanation:
HELP PLEASE What is the correct percentage of time a cell spends in the Interphase and the Mitosis stages?
Answer:
20% in mitosis
80% in interphase
to be more exact it spends 78% in interphase and 22% in mitosis :)
Answer:
c
Explanation:
A sports medicine major wants to conduct a experiment to determine if there there's a correlation between the members of the soccer team's leg strength and the time it takes for them to sprint 40 yards. He sets up the following test and records the data:
Every day for a week, he counts how many times each player can leg press 350 pounds. The following week, he has each player sprint 40 yards every day. The table shows the average number of leg-press repetitions and the average 40-yard dash time (in seconds) for seven randomly selected players. What is the equation of the line best fit? How many seconds should he expect a player to take to run 40 yards if that player can do 22 leg-press repetitions? Round any values to the nearest tenth, if necessary.
leg press (reps) 12 | 32 | 7 | 11 | 23 | 28 | 15 |
40-yard dash (s) 8.6 | 14.6 | 7.1 | 8.3 | 11.9 | 13.4 | 9.5 |
Answer:
The correct answer is the equation of the line of best fit is y=0.11x+4.54, and it would take the player 6.96 seconds to run.
Explanation:
Using technology, we calculate the line of best fit; we first enter the data points as a scatter plot, then run the regression tool, which gives us y=ax+b, where a=0.11 and b=4.54.
We now use this equation, y=0.11x+4.54, to calculate the amount of time it would take a player to run 40 yards if the player can do 22 leg-press reps:
y=0.11(22)+4.54=6.96.
Explain why enzymes are essential or important to maintaining
homeostasis in living things.
Answer:
Enzymes are proteins that catalyse (speed up) vital chemical reactions inside the body. Enzymes will only function properly under a small range of certain conditions, such as preferred pH and temperature. If any conditions are outside their specific range then the enzymes cannot function. This could cause the organism to die. Homeostasis relies on automatic control systems that include nervous responses (nervous system) or chemical responses (endocrine system). Receptors and effectors are also needed
I hope this will be useful
b) Identify a dependent variable in the experiments. Identify the reasoning of the scientists when they tested the number of colonies produced by strains C3-PBB and C6-PBB . The scientists also analyzed the number of colonies produced from each of the environmental and clinical isolate strains when the strains were plated on a growth medium lacking the toxic chemical. Justify this analysis.
A dependent variable is the number of colonies produced. The experiment gives a useful insight into the toxicity of the chemicals.
A scientific experiment must always have a dependent and an independent variable. A dependent variable is the variable whose outcome is being determined by manipulating the independent variable which in this case is the presence or absence of the chemicals.
Toxicity of chemical substances is a very important information to scientists as such this experiment is very important because it highlights the toxicity of the chemicals to living things.
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explain the function of the chloroplast.
Answer:
In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules.
Explanation:
Hope this helps you
Crown me as brainliest:)
Answer:
chloroplasts are plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.
Explanation:
Which of the following best describes how sedimentary rock forms?
A Molten rock beneath the surface of Earth cools and becomes solid.
B Layers of sediment
become compressed over time to form rock.
C Chemical processes or changes in pressure or temperature change a rock.
D Molten rock reaches the surface and cools to become solid rock.
Answer:
I think its B
Explanation:
what are saturns rings made of and how many rings does it have
Answer:
Saturn's rings are thought to be pieces of comets, asteroids or shattered moons that broke up before they reached the planet, torn apart by Saturn's powerful gravity. They are made of billions of small chunks of ice and rock coated with another material such as dust.
Explanation:
I got it from NASA Solar System
Which of the following is an example of a body fossil?
1. Dinosaur footprint
2. Shell mold
3. Ankylosaurs bone
4. Petrified wood
Answer:
3. Ankylosaurs bone
Explanation:
Body fossil – The remains of part (or all) of an actual organism.
2. What is the complementary DNA sequence for the following DNA strands? Write the sequence of the complementary strand below the sequence
given to you.
CGTATC
CTTTCAAG
GAGACTTAC
Answer:
CGTATC - DNA complementary strand- GCATG
CTTTCAAG- DNA complementary strand-GAAAGTTG
GAGACTTAC-DNA complementary strand-CTCTGAATG
Explanation:
Remember that the complementary sequence will be based on base pairing for DNA, so the A will pair with T, C with G
Which of the following passages has the most objective tone?
A
Do you know about the brave dogs in Nome, Alaska, who saved the town in 1925?
B
The people of Nome, Alaska were in big trouble in 1925. It was up to the dogs to save them.
C
The hero dogs in Nome, Alaska, did what no pilot could do: they brought medicine to the town.
D
In 1925, people were sick and planes couldn't land in Nome, Alaska. Teams of dogs delivered the medicine.
Answer: in 1925, people were sick and planes couldn’t land in nome, Alaska. Teams of dogs delivered the medicine
Explanation: I got it right on a quiz
In 1925, people were sick and planes couldn’t land in Nome, Alaska. Teams of dogs delivered the medicine has the most objective tone. Thus, the correct option is D.
What is the objective tone?Objective tone is an impartial tone. This tone does not show any kind of feelings for or against a topic which therefore, is an unbiased or neutral feeling. The objective tone often uses higher level words and avoids pronouns such as I and you in the sentences, creating a type of formal tone. Subjective tone is a personal, biased, emotional, and often informal kind of tone.
Objective tone refers to an impersonal style of writing, which gives us the information about something however it does not include any information about the writer. So, a sentence like this: "In 1925, people were sick and planes couldn't land in Nome, Alaska. Teams of dogs delivered the medicine" is of the objective tone, Because it just tells us a fact.
Therefore, the correct option is D.
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