Around what time was the cure for scurvy found?
Explanation:
During the Age of Sail, it was assumed that 50 percent of the sailors would die of scurvy on a major trip. A Scottish surgeon in the Royal Navy, James Lind, is generally credited with proving that scurvy can be successfully treated with citrus fruit in 1753.
Answer:
in 1747 by James Lind ......
why does the presence of telomeres protect the ends of linear chromosomes?
To prevent the loss of genes as chromosome ends wear down, the tips of eukaryotic chromosomes have specialized DNA “caps” called telomeres. Telomeres need to be protected from a cell's DNA repair systems because they have single-stranded overhangs, which "look like" damaged DNA. ...
why is a chromosome smaller than dna
Answer:
A chromosome is not smaller than DNA
Explanation:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Question 4 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. It helps the cell absorb as many different molecules as possible.
оо
B. It is better for the cell if most molecules are prevented from
entering.
C. Transport proteins allow only enzymes to pass through the
membrane.
D. The cell works better when it contains fewer proteins.
SUBMIT
Answer:
the answer is B
Explanation:
bcuz its right
A soccer player is running at a rate of 6m/s. He then stumbles over an opponent's foot falling & rolling to a stop. This took 4 seconds. What was his acceleration?
Answer:
His acceleration was -1/5 m/s²
Explanation:
the primates that spend the most time walking upright are the _____.
Answer:
Hominids
Explanation:
A particular diploid plant species has 48 chromosomes, or two sets. A mutation occurs and gametes with 48 chromosomes are produced. If self-fertilization occurs, the zygote will have _____ set(s) of chromosomes.
Answer:
4 sets
Explanation:
Both gametes will each have 48 chromosomes (2 sets). So if fertilisation were to occur, two of those gametes (both with 2 sets each) the zygote will have 4 sets.
If self-fertilisation occurs, the zygote will have two set(s) of chromosomes.
What is self fertilisation?Self-fertilization, also known as self-pollination, is a type of sexual reproduction in which a hermaphroditic or monoecious organism fertilizes its own gametes. This means that the male and female reproductive organs are present in the same individual, allowing for self-fertilization to occur.
In plants, self-fertilization can occur through a variety of mechanisms, including self-pollination by wind or gravity, or by the transfer of pollen from the anther to the stigma of the same flower. Self-fertilization can also occur in animals that are hermaphroditic, such as some species of snails and slugs.
Self-fertilization can have both advantages and disadvantages for the organism. It can ensure reproduction in isolated or low-density populations, but it can also limit genetic diversity and increase the risk of inbreeding depression.
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what plant cell organelle performs photosynthesis?
which process is most critical for different types of tree cells to develop?
the entire period between one m phase and the subsequent m phase is called what?
Explanation:
Interphase: The entire period between one M phase and the subsequent M phase is called: interphase.
HOPE IT HELPS
During DNA replication, the ____ strand is assembled in the ____ direction from helix unwinding and is synthesized by ____ replication.
Leading Same Continuous
Explanation:
;)
During DNA replication, the leading strand is assembled in the same direction from the helix unwinding and is synthesized by continuous replication.
What is DNA replication?The biological process of creating two identical copies of DNA from a single original DNA molecule is known as DNA replication. All living things replicate their DNA, which is the most crucial component of biological inheritance.
Because each of the two copies of DNA has one strand that is old and conserved and the other is newly created at the time of replication, this process is known as semiconservative replication.
Thus, during DNA replication, the leading strand is assembled in the same direction from the helix unwinding and is synthesized by continuous replication.
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in the study of genetics the offspring of the p generation is referred to as the
Answer:
F1 Generation
Explanation:
In the study of genetics the offspring of the P generation is referred to as the F1 generation.
In the study of genetics, the offspring of the P generation are referred to as the F1 offspring, or first fillial offspring. Their genetic makeup depends on their parents.
What is inheritance?Inheritance explains how the genes from the parents pass down to the offspring. An example is when both parents are tall because they are purebred, then all the F1 offspring are tall.
The T is represented by tall, and the t is represented by short. TT is purebred tall, and tt is purebred short. When two parents (P generation) are heterozygous for tallness, such as Tt, each will produce gametes such as T and t. From these gametes, three types of individuals are formed, such as purebred tall (TT), heterozygous tall (Tt), and purebred short (tt). These are called F1 offspring.
Hence, in the study of genetics, the offspring of the P generation are referred to as the F1 offspring, or first fillial offspring.
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Cellular organelles have different structures. Mitochondria, for example, possess highly folded inner membranes in addition to their outer membranes. Vacuoles, on the other hand, are only surrounded by a single-layer membrane; they do not have an inner membrane.
Why do cellular organelles have different structures?
A.
Organelles that are less important to the cell have less sophisticated structures.
B.
All of the organelles in a particular organism are identical, but organelles in different organisms are unique.
C.
The structure of a cellular organelle mimics the appearance of the organism.
D.
The structures of cellular organelles are related to their functions.
Answer:
D
Explanation:
Different oganelles do their own function.
The structures of organelles differ because the structures of organelles are related to their functions.
What are the functions of cell organelles?An organelle is a subcellular structure that has one or more specific functions in a cell, such as an organelle in the body. The most important cell organelles are the nuclei, which store genetic information.
Organelles are small structures in the cytoplasm that perform functions necessary to maintain homeostasis in the cell. They are involved in many processes, such as energy production, the formation of proteins and secretions, the destruction of toxins, and responding to external signals.
Examples of membrane-bound organelles include the nucleus, endoplasmic reticulum, Golgi apparatus, mitochondria, plastids, lysosomes, and vacuoles.
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a. both
b. neither
c. the inside of the cell
d. the beaker
Answer:
c
Explanation:
po ang tamang sagon po
_____ mimic the process of natural evolution to generate solutions to optimization and search problems.
Search algorithms are used to generate solutions to optimization and search problems.
Search algorithms that mimic the process of natural evolution. Search algorithms can be used to generate solutions to optimization and search problems using techniques such as mutation, selection, crossover, and chromosome.
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The shape of the earth’s orbit is known as______ it can change from almost a perfect circle to
The shape of earth's orbit is known as
elliptical (egg like).
O obliquity
O precession
O orbit
O eccentricity
Answer:
A.
Explanation:
Because the other ones do not make sense.
What is a strength in the figure?
(1 point)
The figure shows structures in a cell.
The figure shows the steps involved in DNA replication.
The figure shows stem cell differentiation.
The figure shows where mitosis occurs in the cell cycle.
Answer:
The figure shows where mitosis occurs in the cell cycle
Explanation:
The strength in the figure is the figure shows where mitosis occurs in the cell cycle and the figure shows stem cell differentiation. Thus, option D is correct.
What is mitosis?
A cell prepares for cell division by replicating its chromosomes, segregating them, and creating two identical nuclei during the mitotic process. The cell's contents are typically evenly divided into two daughter cells with identical genomes after mitosis.
A cell copies each chromosome during mitosis and distributes one copy to each of its two daughter cells. With regard to our example of an instruction manual, it is crucial that each person receive a duplicate of each page.
Each chromosome must be delivered to each of our cells exactly once, without any errors, or the cells may have problems carrying out the genetic instructions.
Therefore, Mitosis occurs after G2 stage in the cell cycle.The strength in the figure is the figure shows where mitosis occurs in the cell cycle and the figure shows stem cell differentiation. Thus, option D is correct.
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Practice 4: Match each description with the correct term.
A. Ultraviolet radiation
B. Visible radiation
C Infrared region
D. Soler radiation
LL
1. High energy invisible radiation located atter visible radiation most of ur chis song
ozone layer
2. Colorful radiation capable of being detected by human eyes
3. Low energy invisible radiation located before red visible radiation
4. A broad range of radiation, including infrared, Visible, ultraviolet and other room
can someone can help me with this pls I need that right now
Answer:
1) chloroplast
2) chemical
3) photosynthesis
4) solar
5) roots
6) energy
7) glucose
8) oxygen
9) sugar
10) stoma
Explanation:
Here ya go, hope this helps you :)
Which does not contain cytoplasm? A. liver cell
B. palisade tissues C. red blood cell D. xylem vessel
Answer:
dfhzklgrwjhigwruighwreuygbwgerg
Explanation:
egg hjeghbhuwbguygb8qyugfbqey7g
considering the various theories, the energy used in forming organic molecules in the primitive atmosphere could have come from all except
Answer:
the correct answer is sound
we inhale o2 and we exhale co2. carbon dioxide is produced __________.
Peppered moths are a common food source for birds and other animals. Based on the pictures, do you think that one color pattern will be more beneficial than the other for the moth’s survival?
Answer:
but obviously it would be the black pattern because of the new terrain so that way the dark pattern peppered moths will live longer than the original
Explanation:
how long does one smoke session stay in your system urine
According to Mayo Clinic Proceedings, weed is detectable in urine for the following amounts of time after last use: Occasional users (up to three times a week): 3 days. Moderate users (four times a week): 5 to 7 days. Chronic users (daily): 10 to 15 days.
the male reproductive system and the urinary system share which organ?
How does kinetic energy affect temperature? simple answer pls. PLS HELPP!!
Answer:
The faster the particles are moving, the higher the temperature. That is, the average kinetic energy of a gas is directly related to the temperature.
Explanation:
what basic unit of heredity is found in segments of dna
Answer:
Genes
Explanation:
Genes are found in DNA and are the basic unit of heredity.
what is the genotype of a ""normal"" male with no hemophilia a?
Answer: XHY
Explanation:
The hemophilia disease will be present in the progeny if they solely carry the Xh allele/alleles and lack the XH gene, the genotype of man is XhY.
What is hemophilia?Haemophilia was once thought of as an example of Mendelian inheritance since the disease phenotype is caused by a mutation in just one gene (F8 or F9).
But research has shown that the illness has strong genetic and phenotypic heterogeneities. The gene for either the factor VIII protein or the factor IX protein has a mutation (different from normal) in hemophilia patients.
The mutation makes the body manufacture insufficient amounts of factor VIII or factor IX.
Therefore, A normal phenotype will result from having one XH allele because this condition is recessive, the genotype of a man is XhY.
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Scientists find cell with a genetic mutation in the cyclin dependant kinase gene. The mutation leads to a misshapen CDK molecule that will not bind to cyclin molecules. How would this impact the cell cycle of that cell
Answer:
The mutation leads to a misshapen CDK molecule that will not bind to cyclin molecules. How will this impact the resulting daughter cell? Explain. If cyclin molecules did not bind to CDK, the cell could not progress through the cell cycle.
Explanation:
I could be wrong...if I am I'm very sorry
what is the term for a group of different species in a given area?
Answer:
biocoenosis, biotic community, biological community, ecological community, or life assemblage
Explanation: