Answers
Answer:
The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations,
Explanation:
tysm
Related Questions
Sickle-cell anemia is a genetic blood disorder. Red blood cells normally have a round shape and pass easily through small blood vessels as they deliver oxygen to the tissue. But in people with sickle-cell anemia, some red blood cells are shaped like a sickle, or a "C." The red blood cells with this sickle shape do not live as long as healthy, round blood cells.
The sickling of red blood cells is thought to be due to problems with the hemoglobin gene. The unusual behavior of the hemoglobin causes rigid fibers of protein to form in the cell membrane, leading to a decrease in its flexibility and the change in cell shape. These rigid, deformed cells are more likely to rupture or get stuck in small blood vessels, creating a blockage. When blood flow to tissues is interrupted, this can lead to long-term damage to organs and even cause death.
1. a) Based on the information above, what are at least two changes that take place in the red blood cells of individuals with sickle-cell anemia? (2 points)
Answers
it delivered oxygen easily
in sickle it cause problem
Explanation:
it because their blood cell is not spherical
which features are found only on thoracic vertebrae?
Answers
Answer:
The characteristic feature of thoracic vertebrae is the presence of joints that articulate with ribs. A mid-thoracic vertebra (shown here) has two joint facets on the vertebral body for the heads of adjacent ribs, and a third joint facet on the transverse process for the neck of a rib.
Explanation:
which of the following statements is most likely to be true in the case of the feedback-regulated
Answers
Answer:
Where is the statements because you didn't write it.
Organelle s is most likely the ___________________.
smooth endoplasmic reticulum
rough endoplasmic reticulum
golgi apparatus
centrioles
Answers
Answer:
Answer is smooth endoplasmic reticulum
Explanation:
If you like my answer than please mark me brainliest thanks
sunlight gives what to the chloroplasts in side leaves
Answers
Answer:
Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Chloroplasts capture light energy from the sun to produce the free energy stored in ATP and NADPH through a process called photosynthesis.
what do the three major checkpoints for cell division have in common?
Answers
Answer:
There are three major checkpoints in the cell cycle: one near the end of G1, a second at the G2/M transition, and the third during metaphase. Positive regulator molecules allow the cell cycle to advance to the next stage. ... Each successive cell division will give rise to daughter cells with even more accumulated damage.
Explanation:
in a eukaryotic cell, where does transcription occur?
Answers
Answer:
transcription occurs in the nucleus, and translation occurs in the cytoplasm.
Explanation:
If the black horse is homeozygous, what is its genotype?
Answers
Answer:
the genotype is BB.
Explanation:
What are 4 facts about Earth's outer layer? Subject: Science 7th grade Plate motion.
Answers
The outer core is the third layer of earth It is mainly made up of the metals iron and nickel
The outer core is responsible for earths magnetic fields
The magnetic field protect the earth from harmful particles that come from the sun
Assignment : Write 5 characteristics of each: chlamydomonas
amoeba
paramecium
diaom
Answers
Answer:
Here is the answer to your question.
Explanation:
Chlamydomonas: Motile unicellular algae, generally oval, cell wall is made up of a glycoprotein and non-cellulosic polysaccharides instead of cellulose, two anteriorly inserted whiplash flagella, contractile vacuoles are near the bases of flagella.
Amoeba: Amoeba is a unicellular organism found in stagnant water, the size of amoeba is 0.25, they move with the help of a finger-like projection called pseudopodia, the cytoplasm is differentiated into two parts, the outer portion is ectoplasm and the inner portion is called endoplast, amoebae are eukaryotes whose bodies most often consist of a single cell.
Paramecium: Paramecia cells are characteristically elongated, Paramecia are eukaryotes, asexual reproduction (binary fission), sexual reproduction (conjugation), autogamy (self-fertilization).
Diatom: Diatoms have two distinct shapes: a few (centric diatoms) are radially symmetric, while most (pennate diatoms) are broadly bilaterally symmetric. A unique feature of diatom anatomy is that they are surrounded by a cell wall made of silica (hydrated silicon dioxide), called a frustule.
Hope This Helps!!!
how i know a chemical reaction took place
Answers
Answer:
Gas bubbles, precipitation, color change, temperature change, if some light is produced, the volume changes, or taste and or smell changes.
Explanation:
I learned these were the 7 signs of a chemical reaction but some schools and curriculums vary on how many signs of reactions there are. I hope this helped!
What makes a successful Aquarium
Answers
Answer:
Im guessing animal control feeding the animals good glass and thickness also a strong bridge last is a passive shark
Explanation:
Like other living creatures, fish must meet certain basic needs for survival. Water, food and shelter are among the most important requirements:
• Water: Fish not only live in water, but they get oxygen from water. They breathe by taking water into their mouths and forcing it out through gill passages.
• Food: Fish must be able to find enough to eat at various life stages, whether they feed on microorganisms, small fish or larger prey.
• Shelter: Fish need a place to hide from predators and to reproduce. Some fish find shelter among submerged aquatic plants and shoreline vegetation, while others hide among rocks, soft sediments, or blend into clear, open waters.
and filtration
Which two chemical processes are represented by the equation below?
starch + water <—enzymes—>
sugars
Answers
Hydrolysis + water because when the starch is being added with water the water is breaking it down
Explanation:
i need an answer asap
Answers
Answer:
yes
Explanation:
Bec. water molecules are polar, hydrogen bonds from between water molecules,polarity has nothing to do with cohension, adhesion and have surface tensionHope this helps:)
1. Which of the following is the appropriate definition of a hypothesis?
O A proposed explanation that is already known.
O A theory about a problem.
A law that has been proven.
The reason for an observation.
O A proposed explanation that is testable.
Answers
Answer:
A proposed explanation that is testable
Hope this helps!
Answer: It would be a proposed explanation that is testable.
Explanation: By definition, a hypothesis means an idea that is proposed for the sake of argument so that it can be tested to see if it might be true.
how many chromosomes do human sperm and egg cells have?
Answers
during dna replication the chromosomes contract and the identical halves are called
Answers
Answer:
Explanation:
Sister chromatids
During DNA replication the chromosomes contract and the identical halves are called sister chromatids.
What is DNA replication?A double-stranded DNA molecule is copied to create two identical DNA molecules through the process of DNA replication.
Because every time a cell splits, the two new daughter cells must have the same genetic material, or DNA, as the parent cell, replication is a crucial process.
In prokaryotes, DNA replication takes place in the cytoplasm, whereas it happens in the nucleus in eukaryotes.
Before dividing, cells must copy their DNA. This promotes successful inheritance of genetic features by giving each daughter cell a copy of the genome.
The two identical copies of the DNA that are produced as a result of this replication are known as "sister chromatids," and they are connected to one another by a section of the chromosome known as the centromere.
Thus, the identical halves of chromosome is sister chromatid.
For more details regarding DNA replication, visit:
https://brainly.com/question/16464230
#SPJ6
Which would best be used as an index fossil?
O A. alligator bones, because they have lived a long time with relatively few changes in body structure
O B. petrified wood, because it clearly shows the parts of the wood replaced by minerals
O C. sedimentary rock, because it is found in horizontal layers created in succession
O D. trilobites, because they lived for a short period of time and then became extinct
Answers
Si una mujer tuviera una masa de 60 kg, ¿cuál sería su masa en la Luna? (la gravedad de la Luna es de 1,67 m / s2)
Answers
Answer: d
Explanation: just did it on edg
An ecologist in Costa Rica wanted to determine the PGR for the country in 2018, and collected all of the data necessary to calculate the rate. She concluded that there were 34,560 births and 2,310 deaths within their population of 100,000. There were also 478 immigrants and 126 emigrants that year. What was the population growth rate for Costa Rica?
Answers
The population growht rate is 32.602 % per year. Population growth can be calculated as = (births + immigrants) - (deaths + emigrants).
In this case, population growth is equal to = (34,560 births + 478 immigrants) - (2,310 deaths + 126 emigrants) = 32,602 new individuals per year
Total (original) population: 100,000 _____ 100%
32,602 _____ X
In consequence, the population growth rate per year can be estimated by the following equation:
X = (32,602 x 100)/ 100,000 = 32.602 %
Learn more in:
https://brainly.com/question/5045097?referrer=searchResults
ARE ALL CELLS THE SAME?
Answers
Answer:not at all!
Explanation: There are many different types of cells! Just think of the differences between a plant cell and an animal cell, the plant cell has a few different organelles than an animal cell and is missing a few that are in an animal cell as well!
cancer is the result of an improperly regulated cell cycle
Answers
How long does it take the Earth to move from Point A to Point C?
Answers
Answer:
Explanation:
As you know that the earth has two types of motions,
namely rotation and revolution. Rotation is the
movement of the earth on its axis. The movement of
the earth around the sun in a fixed path or orbit is
called Revolution.
The axis of the earth which is an imaginary line,
makes an angle of 66½° with its orbital plane. The
plane formed by the orbit is known as the orbital plane.
The earth receives light from the sun. Due to the
spherical shape of the earth, only half of it gets light
from the sun at a time (Figure 3.2). The portion facing
the sun experiences day while the other half away from
the sun experiences night. The circle that divides the
day from night on the globe is called the circle of
illumination. This circle does not coincide with the
axis as you see in the Figure 3.2. The earth takes about
24 hours to complete one rotation around its axis.
The period of rotation is known as the earthday. This is
the daily motion of the earth.
2021–22
MOTIONS OF THE EARTH 19
Figure 3.3 : Revolution of the Earth and Seasons
What would happen if the earth did not rotate? The
portion of the earth facing the sun would always
experience day, thus bringing continuous warmth to
the region. The other half would remain in darkness
and be freezing cold all the time. Life would not have
been possible in such extreme conditions.
Tại sao sau khi bón phân đạm cho cây ko nên ăn sau khi bón?
Answers
Answer:
PHÂN ĐẠM VÀ NHỮNG CÂU HỎI LIÊN HỆ THỰC TẾ !
- Tại sao không bón phân đạm cho đất chua?
* Giải thích: Đất chua là đất có độ pH<7 (do dư thừa ion H+), đất chua gây ra nhiều bất lợi cho việc giữ gìn và cung cấp thức ăn cho cây, đồng thời làm cho đất ngày càng suy kiệt cả về lý tính, hóa tính và sinh học . Khi bón phân đạm có chứa ion NH4+ ion này sẽ sinh thêm ion H+ theo phương trình NH4+ «NH3 + H+ ,làm tăng độ chua của đất.
- Tại sao không bón vôi và đạm amoni (NH4NO3, NH4Cl)
Comments
Explanation:
What is photosynthesis?
Answers
Answer:
it's a good question well photosynthesis is a process in which plants absorb the sun light and convert it to energy to prepare Thier food.
Photosynthesis is a process by which plants and other organisms, such as algae, convert solar energy into chemical energy and use it to produce organic molecules. Photosynthesis is the main source of energy in the biosphere.
MIXTURE OF WATER AND SOLUTE are called
Answers
Answer:
A solution is another name for a homogeneous mixture. ... Salt dissolved in water is a solution. The major component of a solution, called the solvent, is typically the same phase as the solution itself. Each minor component of a solution (and there may be more than one) is called the solute.
Explanation:
Explanation:
A solution is another name for a homogeneous mixture. ... Salt dissolved in water is a solution. The major component of a solution, called the solvent, is typically the same phase as the solution itself. Each minor component of a solution (and there may be more than one) is called the solute
Which of the following situations show a biotic factor operating within an ecosystem? SC.912.L.17.7
A.
The kind of climate in a given region
B.
The concentration of hydrogen gas in the air
C.
The rate of water flow in a body of water
D.
Carnivores that eat other animals
Answers
A biotic factor is a living organism that shapes its environment.
Carnivores that eat other animals is a situation which shows a biotic factor operating within an ecosystem. Thus, the correct option is D.
What are the biotic factors?
A biotic factor in an ecosystem is a living organism which shapes its surrounding environment. In a freshwater ecosystem, the examples of biotic factors might include aquatic plants, fishes, amphibians, and algae population.
An example of biotic factor should consist of living organisms such as the one "Carnivores that eat other animals". In this example, carnivores are the animals which eat other lower animals for their nutrition. Both the organisms are living hence are the biotic factors of an ecosystem.
Biotic factors of an ecosystem depends upon the abiotic factors for their survival such as water, climate, soil, temperature, and atmosphere, etc.
Therefore, the correct option is D.
Learn more about Biotic factors here:
https://brainly.com/question/27430655
#SPJ2
. List the measures to reduce noise pollution.
Answers
Answer:
Turn off Appliances at Home and offices. ...Shut the Door when using noisy Machines. ...Use Earplugs. ...Lower the volume. ...Stay away from Noisy area. ...Follow the Limits of Noise level. ...Control Noise level near sensitive areas. ...Go Green by planning trees.chúng ta cần làm gì để bảo vệ môi trường sống không còn tác nhân đột biến?
Answers
Which of the following describes why a glucose transporter is needed to move glucose into the cell?
Glucose is nonpolar and requires ATP to move across the membrane.
Answer A: Glucose is nonpolar and requires A T P to move across the membrane.
A
Glucose molecules are polar and need to move from low concentration to high concentration.
Answer B: Glucose molecules are polar and need to move from low concentration to high concentration.
B
Glucose molecules are charged, and charged molecules are only ever actively transported.
Answer C: Glucose molecules are charged, and charged molecules are only ever actively transported.
C
Answer D: Glucose is large and polar and cannot pass through the phospholipid bilayer.
Answers
A glucose transporter is needed to move glucose into the cell because glucose molecules are polar and need to move from low concentration to high concentration.
What do you mean by Glucose Transporters?Glucose transporters may be defined as proteins that facilitate the transport of glucose across the plasma membrane.
Glucose transporters work with the concentration gradient. This process of moving glucose across the cell membrane is called facilitated diffusion.
Therefore, a glucose transporter is needed to move glucose into the cell because glucose molecules are polar and need to move from low concentration to high concentration.
To learn more about Glucose transporters, refer to the link:
https://brainly.com/question/24986163