Answer: true
Explanation: Sometimes, a subset of muscle fibers is activated, depending on how much force is needed. When the muscle is stimulated, calcium ions are released from its store inside the sarcoplasmic reticulum, into the sarcoplasm (muscle ). ... The SR is smaller and less elaborate, and stores less calcium ions.
Scientific investigations often lead to the formulation of new scientific questions. The observations Charles Darwin's work after he returned home from his voyage and studying the selective breeding of pigeons prompted him to ask which question?
A) Do living things change over time, and if so, how?
B) Are the Galapagos finches and those on the mainland the same species?
C) Are pigeons related to the Galapagos finches?
D) Can selection in nature also lead to a new species over time?
Answer: D. Can selection in nature also lead to a new species over time?
Explanation:
Answer:
Can selection in nature also lead to a new species over time?
Explanation:
Correct on edge 2021 hope this helps :)
what role do the muscles and blood vessels play in the negative feedback loop of thermoregulation?
a. sensors
b. integration centers
c. stimuli
d. effectors
Answer:
This answers may help you
What is the cause of the toxic algae overgrowth in Prospect Park lake?
Phosphorus in the NYC tap water that feeds the lake. Phosphorus is put in the water to prevent lead from leaching into NYC's tap water.
Nitrogen from all of the dog poop surrounding the lake.
Combined sewage outfalls.
(This is 7th grade science).
Answer:
Harmful Algal Blooms (HABs) are produced by naturally occurring cyanobacteria in lakes and ponds, including the Prospect Park Lake and other bodies of water in the NYC area.
Explanation:
there is non
The chemical equation for cellular respiration is:
glucose + oxygen ----> your mama
carbon dioxide + water
sunlight --->glucose + oxygen
oxygen + carbon dioxide glucose + water
glucose + oxygen --->carbon dioxide + water + ATP (energy)
Answer: The last one
Explanation:
Glucose+oxygen----> Carbon dioxide+ water+ ATP(energy)
What is the atomic mass of Sulfur that has 18 neutrons?
Answer: 32.066 atomic mass units
B is the correct option.
How many chromosomes would you expect to be in the daughter cells of the mosquito after mitosis? When starting with 6
Answer:
i think it would be 12 since during mitosis it creates identical daughter cells which doubles up cells.
Explanation:
Answer:
12
Explanation:
A mountain climber climbs to the summit of a 7 km mountain and then returns to his campsite located at the base of the mountain. Explain what happens to the temperature and pressure as he ascends to the summit and returns to his campsite.
Answer:
Temperature reduces and pressure increases as he ascends to the summit while the reverse of this happens when he returns to his campsite
Explanation:
When a person climbs a summit, the pressure increases but the temperature reduces. but as he returns to his campsite the normal temperature and pressure are regained which means the pressure reduces and the temperature increase.
The temperature and pressure decreases as he ascends the mountain and increases as he descends the mountain.
We know that temperature and pressure decreases with altitude. In fact, the temperature decreases by 6.5°C for every 1000 meters increase in altitude. Hence air pressure decreases with increasing altitude.
Hence, for a mountain climber, the temperature and pressure decreases as he ascends the mountain and increases as he descends the mountain.
Learn more about pressure: https://brainly.com/question/356585
Plant and animal cells both have cell membranes and nuclear membranes. However, plant cells have a structure that animal cells do not, known as a: ____
Answer:
cell wall and chloroplast
There are many different types of cells with many different types of cellular structures and functions. Which of these structures is found in all types of eukaryotic cells?
A. chloroplast
B. cell wall
C. nucleus
D. centrioles
Answer:
nucleus
Explanation:
chloroplasts and cell walls are only found in plant (and fungi) cells, while centrioles are only in animal cells.
The structure that is found in all types of eukaryotic cells is the nucleus. The correct option is C.
What are eukaryotic cells?Eukaryotic cells are those cells that contain true cell organelle. These cells are present in the higher organism, and they perform complex functions like replication, mitosis, etc.
There are two types of cells. They are prokaryotic and eukaryotic cells. Prokaryotic cells are those that do not contain an organelle and a nucleus. They are present in smaller organisms.
The nucleus is the brain of cells. It controls all functions of cells, and it contains the genetic material of the organisms. In prokaryotic cells, the nucleus is absent and in eukaryotic cells, the nucleus is present. That is the difference between them.
Thus, the correct option is C. nucleus.
To learn more about eukaryotic cells, refer to the link:
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7. B=brown eyes
b= blue eyes
What is true about these two brothers that have brown eyes:
One has genotype BB the other Bb.
a. they have same phenotype and genotype
b. they have different genotypes and phenotypes
c. they have same phenotype but different genotypes
d. they have same genotype but different phenotypes
The truth about these two brothers that have brown eyes is they have the same phenotype (Brown) but different genotypes (BB and Bb). So, the correct option is C.
What do you mean by Genotypes?Genotypes may be defined as a given set of alleles that an individual possesses. They are ultimate combinations of alleles.
In this situation, the allele B is dominant over the allele b, therefore, in both cases, phenotypes remain the same i.e. Brown eyes, but the genotypes differ. This defines how an allele interacts with another allele and changes the genotype.
Therefore, the truth about these two brothers that have brown eyes is they have the same phenotype (Brown) but different genotypes (BB and Bb).
To learn more about Gene interaction, refer to the link:
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Poly" means many and "saccharide" means sugar.
Why is polysaccharide a good name for the picture on the right above
!
A simple life cycle is one in which the offspring look similar to their parents.
True
Or
False
What is a scientific question?
Answer:
it is something that defies science
Explanation:
if someone asked you what the scientific phrase for water was it would be H2O. so an easier way to remember it is something that explains science.
Answer: A question that is based on observation and that is testable
Explanation: Hope this helps :)
What evidence supports a conservation law?
Carbon dioxide becomes glucose and oxygen during photosynthesis.
Hydrogen is made from the breakdown of carbon dioxide during photosynthesis.
Chlorophyll converts sunlight to chemical energy during photosynthesis.
Glucose and oxygen become carbon dioxide and water during photosynthesis.
Question 4(Multiple Choice Worth 4 points)
Answer:
it is c
Explanation:
C. Glucose and oxygen become carbon dioxide and water during photosynthesis.
Law of conservation:
A conservation law is a statement used in physics that says that the amount of something does not change in time.
In terms of Law of conservation of mass:
The "law of conservation of mass" is the conservation law that says that the amount of mass is always conserved, even if it is changed into another form.
During photosynthesis, plants take in carbon dioxide (CO₂) and water (H₂O) from the air and soil. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.Therefore, correct options that supports a conservation law is option C.
Learn more:
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9. What is the difference betwen climate and weather?
Answer:
Climate is the long-term weather, like it is usually sunny in Florida,
Weather is the weather that you see every day, such as rainy.
Explanation:
Answer:
Weather reflects short-term conditions of the atmosphere while climate is the average daily weather for an extended period of time at a certain location.
Explanation:
what is unequal sharing of electrons
Answer:
Covalent bond between two atoms with unequal electronegativities results in unequal sharing of electrons. These types of covalent bonds are called polar bonds because the electron distribution or charge is unevenly distributed or polarized. .
Explanation:
1.scientist refer to a biological community and the abiotic parts of the environment that affects the community as _______?
A. Biome
B. Ecosystem
C. Population
D. Community
Humans have greatly increased the level of in the atmosphere. O A. argon B. oxygen O . C. carbon dioxide O D. nitrogen
Answer:
Humans have greatly increased the level of in the atmosphere. O A. argon B. oxygen O . C. carbon dioxide O D. nitrogen
=carbon dioxides
Answer:
C
Explanation:
Think of the greenhouse effect. The burning of fossil fuels causes carbon dioxide emissions.
A population of sixteen emu grew to thirty-nine in one year. After two years, the population had grown to forty-eight. The maximum number of emu that the environment can support is approximately sixty due to limited resources such as food and water.
What is the carrying capacity of the emu population?
sixteen
thirty-nine
forty-eight
sixty
Answer: D. 60
Explanation: Answer is correct in Edge!!! TRUST ME!!! I'm Brainly!!! :)
The carrying capacity is the maximum number of individuals that an environment can support given its available resources and here that is approximately sixty that is the last option.
What is emu population carrying capacity?
in the case of the emu population, the environment may have limited resources such as food and water, which could limit the population size even if there are no other limiting factors. As the population grows, competition for resources could increase, making it harder for individuals to find enough food and water to survive and reproduce.
This could cause the growth rate to slow down or level off as the population approaches the carrying capacity. Other factors that could limit the emu population size include predation, disease, and habitat destruction. If there are predators that feed on emus, the population size could be limited by the availability of prey. Similarly, if there are diseases that affect emus, the population size could be limited by the spread of the disease.
Hence, approximately sixty is the carrying capacity in this case that is the last option.
Learn more about the carrying capacity here.
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What is mostly absorbed from the food during its passage down the large intestine?
Answer:
The final stage of the digestive system is the colon (large intestine) which absorbs water and salts before the remains are passed out of the rectum as faeces. The colon can also help to absorb remaining carbohydrate and some fats.
In an earthworm is the dorsal blood vessel or the ventral blood vessel larger?
Answer:
Dorsal lol, its contracts and pumps blood to the aortic arches.
Which best explains why DNA technology is important for disease prevention?
A: It can help detect if a person is prone to certain diseases.
B: It can manipulate genes to express desirable traits
C: It can treat diseases with the help of genetically modified food
D: It can increase the genetic diversity of a species.
2. Our sun converts 700 million tons of hydrogen into 695 million tons of helium every
second.
O True
False
Answer:
true
Explanation:
How did the invention of the microscope contribute to knowledge about 1p living things?
Answer:
It made it possible for people to discover and learn about cells.
Explanation:
The cell is the basic unit of structure and function of all living beings. A cell can also be defined as a morphological, functional, and reproductive unit of all living beings.
Every living organism is made up of one or more cells. All cells are created from an existing cell. A cell is the smallest unit that has all the characteristics of life. A set of cells of similar or the same appearance, embryonic origin, and function is called tissue.
The science that studies the cell is called cytology. There are organic and inorganic compounds in the cell. Of the inorganic compounds, water and salts are the most common. Organic compounds in the cell contain carbohydrates, fats, and proteins.
what is the atmosphere for gas essential for animal life?
Answer: oxygen
Explanation:
Water travels from the roots of a plant to its stems and leaves through__________cells.
Answer:
xylem
Explanation:
why are bacteria good for copying large amounts of dna
Answer:Bacteria become ‘factories’ that produce a large number of copies of the recombinant DNA. There are several reasons for the use of bacteria as the host in the recombinant DNA technology. They are; Bacterial cells are easy to grow, maintain, and manipulate in a laboratory.
Explanation:You might wanna change some words i just found it somewhere
can someone help me with this question?
Answer:
B....
fatty acids and DNA
:)
Which is a major factor that limits cell growth?
Answer:
ratio of surface area to volume
Explanation:
What are the 3 types of land - based agriculture?
Answer:Subsistence agriculture is often divided into three different types, including intensive subsistence, which is the traditional method, shifting cultivation, which relies on clearing forest to create new farm plots every few years and pastoral nomadism, which relies on traveling with herds of animals.
Explanation: