What is the next step in muscle contraction after the actin changes shape?
A. An ATP molecule binds to the myosin.
B. Myosin and actin slide past each other.
C. A calcium ion binds to actin.
D. Myosin binds to actin.
Answer:
D. Myosin binds to actin.
Explanation:
The correct option is D.
What are the steps of muscle contraction in order?
The process of muscular contraction occurs over a number of key steps, including:
Depolarisation and calcium ion release.Actin and myosin cross-bridge formation.The sliding mechanism of actin and myosin filaments.Sarcomere shortening (muscle contraction)What is the next step in muscle contraction after calcium ions bind to actin?If present, calcium ions bind to troponin, causing conformational changes in troponin that allow tropomyosin to move away from the myosin-binding sites on actin. Once the tropomyosin is removed, a cross-bridge can form between actin and myosin, triggering contraction.
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Solve for x: 3 − (2x − 5) < −4(x + 2)
Your answer:
x < −8
x > −8
x < −3
x > −3
Answer:
x < -8
Explanation:
3 − (2x − 5) < −4(x + 2)
3- 2x +5 < -4x - 8
-2x +8 < -4x -8
-2x < -4x -16
2x < -16
x < -8
Answer:
[tex]x < - 8[/tex]
First answer is correct
Explanation:
[tex]3 - (2x - 5) < - 4(x + 2) \\ 3 - 2x + 5 < - 4x - 8 \\ - 2x + 4x < - 3 - 5 - 8\\ 2x < - 10 \\ \frac{2x}{2} < \frac{ - 16}{2} \\ x < - 8[/tex]
hope this helps you
3. What charts, tables, or drawings would clearly show what you have learned in this lab?lab:owl pellets Each chart, table, or drawing should have the following items: a. An appropriate title b. Appropriate labels
Answer:
You should share what the project is about! Every lab report on E2020 has the same question. I see you are in biology but that doesn't really help. And, no, I'm not just doing this for the points, I'm doing this because it won't let me comment XD
Explanation:
Answer:
ables should be:
Centered on the page.
Numbered in the order they appear in the text.
Referenced in the order they appear in the text.
Labeled with the table number and descriptive title above the table.
Labeled with column and/or row labels that describe the data, including units of measurement.
Explanation:
How do cells behave in a multicellular protist?
1.They share nuclei between cells.
2.They exhibit cell specialization.
3.They don't exhibit cell specialization.
4.They're missing mitochondria.
Answer:
They don't exhibit cell specialization.
Explanation:
In a multicellular protist, the cells don't exhibit cell specialization.
Answer:
3.They don't exhibit cell specialization.
Explanation:
In a multicellular protist, the cells don't exhibit cell specialization.
Question 1 to 6
Parts of cells ,
please help me
Answer:
Explanation:
1 The first time the word cell was used to refer to these tiny units of life was in 1665 by a British scientist named Robert Hooke. Hooke was one of the earliest scientists to study living things under a microscope
2 Leeuwenhoek found animalcules
Dutch biologist and microscope pioneer Antoni van Leeuwenhoek observed in the late 1600s when he proclaimed the existence of a world of microscopic “animalcules”
3 The three parts of the cell theory are as follows: (1) All living things are made up of cells, (2) Cells are the smallest units (or most basic building blocks) of life, and (3) All cells come from preexisting cells through the process of cell division.
4 Four Common Parts of a Cell
Although cells are diverse, all cells have certain parts in common. The parts include a plasma membrane, cytoplasm, ribosomes, and DNA. The plasma membrane (also called the cell membrane) is a thin coat of lipids that surrounds a cell.
5 Ribosomes are small structures where proteins are made. They are found in both prokaryotic and eukaryotic cells
6 The main role of DNA in the cell is the long-term storage of information. ... The major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code. To read the genetic code, cells make a copy of a stretch of DNA in the nucleic acid RNA.
here u go with your answers
What statement is true about natural selection and evolution
A. Evolution is the mechanism by which natural selection occurs
B. Natural selection and evolution both show change over time
C. Evolution and natural selection occurs separately in an ecosystem.
Answer:
b
Explanation:
Which allele combination represents a female who is a carrier for an X-linked recessive disorder?
Answer:
The Correct answer would be XRXr
Explanation:
In humans, X and Y are the sex chromosomes which determine the gender of the person.
Answer:
AKA A youre welcome
Explanation:
Changes in groups of organisms overtime produce variations in a population. This relates to _______.
A. Macroevolution
B. Microevolution
C. Both
C. Both.
Explanation:
Changes that occur in different groups of organisms overtime that produce variations in a population relate to both macroevolution and microevolution. Although they are different, they both relate to this subject.
Macroevolution is on a big scale. This goes over organisms ancestors, large trends, and other groups of species that may be involved. This goes over a longer bit of time and is not as in depth.
Microevolution is on small scale. This goes over the different changes that may have occurred in allele frequencies from things like genetic drift, natural selection, or mutation. This goes in much more depth and looks deeper into what type of evolution may have happened.
B. Hypothesize how small changes in energy use can make a significant difference in CO,
emissions.
Answer:
small changes of energy can create such a big difference in co emissions. As we use less energy the amount of harmful gases that are produced from them will lower, therefore creating a smaller amount of greenhouse gases/ CO into the atmosphere.
PLEASE HELP I AM BEGGING
Select the correct answer from each drop-down menu. A species of fish evolved over thousands of years to have gills that allowed the fish to swim deep in the sea. What’s the effect of this development on deep-water resources? The fish developed the gills because of _____. Because the fish are now able to swim in deep water, their____ in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will_____
1 . Genetic modification, Hybridization, or Natural selection
2.competitors,Predator, or prey
3. Decrease, increase, or Not change
Answer: natural selection, predators, increase
Explanation:
A Punnett square is used to _______.
➼ predict the genotypic and phenotypic probabilities of possible offspring
➼ determine if a trait runs in a family
➼track inherited traits through many generations
➼identify organisms that are carriers of a specific trait
❗PLEASE PROVIDE AN EXPLANATION, OR I WILL DELETE YOUR ANSWER/NO POINTS❗
Hello,
The answer is option A "predict the genotypic and phenotypic probabilities of possible offspring".
Reason:
A Punnett square is used to determine (predict) the genotype, and phenotype of a organism. Phenotype is the physical features of a organism fur, ears, nose, etc.... Genotype is most likely the height, eye color, etc....
If you need anymore help feel free to ask me!
Hope this helps!
-me :)
_______ behaviors rely on prior practice or experience.
Question 8 of 15
2 Points
The spatial arrangement of lone pairs and bonded pairs around the central
atom is called
A. electron-group geometry
O B. geometric design
C. electron-pair repulsion
D. electronegativity
Answer: Electronegativity
Explanation:
Answer: is A electron-group geometry
Explanation:
VERY EASY QUESTION. WILL MARK BRAINLIEST
What is the name of the process by which decomposers convert organic nitrogen to ammonia?
Ammonification
Denitrification
Fixation
Nitrification
Answer:
fixation
Explanation:
bacteria convert the nitrogen in the soil into ammonia through a process called nitrogen fixation. Decomposers also produce ammonia by converting animal waste and dead plants and animals into organic and inorganic materials, including ammonia
Which process occurs in yeast to make bread rise?
aerobic respiration
lactic acid fermentation
alcoholic fermentation
hydrochloric acid fermentation
Answer:
The answer is option 3.
Explanation:
Yeast respire glucose anaerobically to produce alcohol and bubbles of carbon dioxide. Carbon dioxide is the gas which makes the bread rises.
So it is an alcoholic fermentation.
The equation for fermentation :
Glucose → Alcohol + Carbon dioxide
Answer:
c
Explanation:
State one factor that contributed to the increase of life expectancy in the United Sates
Answer:Education
Explanation: Higher education levels are linked to higher socio-economic status and both are linked to improved longevity, according to Hall and Peterson. For those with a bachelor's degree or higher, life expectancy at age 25 increased by 1.9 years for men and 2.8 years for women, according to the CDCn
how are the lysogenic and lytic cycle similar ?
PLEASE HELP ME OUT ! 20 pts
Answer:
B
Explanation:
B to C looks to me to be the biggest growth
How does Earth's solid inner core affect seismic waves?
O A. They go faster through the inner core than the liquid outer core.
O B. It blocks S waves from passing through.
O C. They go slower through the inner core than the liquid outer core.
O D. It blocks P waves from passing through.
Earth's solid inner core affect seismic waves as they go slower through the inner core than the liquid outer core.The correct option is C.
The solid inner core affects seismic waves by slowing them down. Seismic waves are waves of energy that travel through the Earth's layers, including the solid inner core and the liquid outer core.
Seismic waves can be either P waves (primary waves) or S waves (secondary waves).P waves are compression waves that can travel through both solid and liquid material. However, S waves are transverse waves that can only travel through solid material.
Thus, option C is correct.
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Which two processes happen during mitosis? A. The nucleus divides only once B the chromosomes move in a pattern C the gametes fuse to form a zygote D the nucleus goes through two rounds of division (Choose two pls)
Answer:
A and B, I think.
Which of the following does the endocrine system regulate? Blood sugar Reflexes Respiration Senses
Answer:
Blood sugar
Explanation:
Answer:
blood sugar
Explanation:
Most issues people have with sleeping could be solved by
A. avoiding consistent bedtimes
B. going to sleep later at night
C. establishing proper sleep hygiene
D. exercising right before bedtime
Answer:
C. establishing proper sleep hygiene
Explanation:
If you sleep at consistent times and establish proper sleep hygiene most people could solve their sleeping issues very quickly
Biodiversity is the variety of life in an area. Think about the
process of succession. How does biodiversity change during
succession?
Biodiversity increases through the process of succession.
Biodiversity decreases through the process of succession.
Biodiversity does not change during the process of
succession.
Answer:
It Increases.
Explanation:
Biodiversity is the the variety of living organisms such as wildlife and plants. The number of organisms and biomass amount further increases in the ecosystem in which the process of succession is occurring.
The numbers will stabilize when a climax stage has occurred in succession, which will not change the biodiversity.
The sort of many lives living together in an ecosystem or habitat is called biodiversity. Biodiversity increases during the process of succession.
What is succession?Succession is the biological and chemical process of change and formation of the habitat and species of a particular place during a period. It can be primary or secondary.
The formation of the new habitat in barren land is primary succession while the formation of the ecosystem in a once habituated place is secondary succession.
Biodiversity always increases in the succession process till the climax community is not achieved till the conditions are well balanced.
Therefore, option A. biodiversity increase in the process of succession.
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Why do viruses need a host cell to survive?
Answer:
viruses are at the borderline of living and non-living organinsms outside the body of living host they are non-active and they cannot grow without their host
Explanation:
Do my diffusion Assignment for 30 pts
Answer:
ok
Explanation:
but wheres is it
Which of the following best explains the production of large amounts of the amino acid glycine betaine by Survivor plants?
A. They have a random mutation in their genome.
B. They have been genetically engineered by humans.
C. They have always had the gene for this amino acid.
D. They have been given special nutrients by humans.
Answer:
I think it is C
Explanation:
Amino acids have various prominent functions in plants. Besides their usage during protein biosynthesis, they also represent building blocks for several other biosynthesis pathways and play pivotal roles during signaling processes as well as in plant stress response
Answer: B
Explanation:
I just took the quiz
Please answer!! ASAP PLEASE and THANK YOUUU
Answer: I think it is 12 00
Explanation:
Consider this animal cell. The organelles in an animal cell are labeled. Part A is a structure with stacked membranes, part E represents small dots on the nucleolus, part F is a network of hollow tubes, flattened sheets, and round sacs, and part G is a bean-shaped structure with folding inside. Which organelle is responsible for producing the energy for cellular processes? organelle A organelle E organelle F organelle G
Answer:
G is a bean-shaped structure with folding inside
Explanation:
The Bean shape structure is the shape of Mitochondria, therefore it is the organelle of cellular respiration.
Kreb's Cycle and oxiadative phosphorylation are the major stages of of Cellular respiration which takes place in the mitochondria.
Cellular respiration is the process of extracting the energy as ATPs contained in foods(glucose, fatty acids, Aa) by combining them with oxygen.
Electron transport chains generate the energy for pumping protons to generate the energy, for ATPs synthesis, by enzyme ATPase synthases.
Answer:
D.
Explanation:
Which reminds the same as the distance of an object from earth changes? Size of the force, strength of gravity, mass of the object, weight of the object
Answer: Mass
Explanation: Mass never changes regardless of the other factors listed
Answer: Mass of an object
Explanation: i just took the quiz.
Based on the food chain, if a hawk acquires 50 calories of energy, how much energy did the grasshopper get from the plant?
Answer:
50,000 calories
Explanation: