sexual reproduction
The process of sexual reproduction introduces variation into the species because the alleles that the mother and the father carry are mixed together in the offspring. A disadvantage is that sexual reproduction takes longer than asexual reproduction.
What is a broad explanation about the natural world that is backed up by facts?
law
idea
theory
hypothesis
A scientific theory is an explanation of some aspect of the natural world based on empirical evidence. The scientific theories are the foundational bases for the construction of scientific knowledge.
A hypothesis is a plausible explanation of some question about the natural world that must be tested (either confirmed or rejected) by using the scientific method.A scientific idea is a statement and/or conclusion based on observational and experimental procedures, which can be used to explain a particular phenomenon observed in the real world.A scientific law is a well-sustained explanation of some phenomenon of the real world, which is based on a body of knowledge obtained from experimental and observational procedures.A scientific theory is a broad explanation of the natural world backed up by facts. A scientific theory can be considered as a foundational basis for the construction of scientific knowledge.Learn more in:
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NEGATIVE FEEDBACK of enzymes Activity
Answer:
Negative feedback results in the inhibition of an enzyme in a biochemical pathway, reducing the activity of earlier enzymes, and stopping the pathway. Positive feedback results in the activation of more enzymes, thus increasing its production of the product.
A long -lasting high fever is a concern for denaturation of:
Answer:
Denaturation follows the breakdown of the tertiary configuration of the protein concerned, by rupture of the weak ionic bonds responsible for maintaining the linkage between amino acids in the secondary structure.
A form used to characterize particle size
An hour glass pours sand at a rate of 10 grams every hour. If I measured 4 lbs of sand, how many hours did it take to pour?
Answer:
4 lbs is 1814.37 grames so the answer is 3
Explanation:
1814.37 ÷ 10 = 181.437
so now to find how many hours.
181.437 ÷ 60 =3.02395 or you can just say 3 hours
(we divide by 60 Because there are 60 minutes in an hour)
Describe a phase of mitosis?
Mitosis is the division of a parent cell into two daughter cells which contain the genetic material which is exactly similar to parents. The daughter cells are often called as clones.
What is Mitosis?
Mitosis is also known as Equational division. Mitosis is the process of cell division, in which the nucleus undergoes division in eukaryotic cells that occurs when a parent cell undergoes division to produce two identical daughter cells.
During the process of cell division, the karyokinesis is followed by the cytokinesis. Karyokinesis is the division of nucleus and it is divided into four phases: Prophase, Metaphase, Anaphase, and Telophase. In the prophase of mitosis, the spindle fibers starts attaching to the chromatids of chromosomes and the chromatids becomes distinct which are then arranged on the equatorial plane and later divides into two daughter cells.
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11. (a) Define the following terms (i) Spermatogenesis (ii) Oogenesis
Answer:
A. answer
Spermatogenesis is a process farming of spermatoza from germ cell(spermatogonium/spermatogonial) that happened in seminiferous tubules of the testis.
B. answer
oogenesis is the formation of ovum or eggs,starts in the ovaries of the foetus before birth.
why mitochondria important
The mitochondria is important because it is the powerhouse of the cell. The mitochondria is used to power nearly all cells in our body.
(Sorry if this is wrong... I'm trying my best with this.)
briefly describe a lipid and protein.
Answer:
They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers. Together with proteins and carbohydrates, lipids are one of the principal structural components of living cells.
Answer:
Lipids are one of the four major groups of organic molecules; the other three being proteins, nucleic acids (DNA), and carbohydrates (sugars). Lipids are made up of the same elements as carbohydrates: carbon, hydrogen, and oxygen. However, lipids tend to contain many more hydrogen atoms than oxygen atoms.
Protein is an important part of a healthy diet. Proteins are made up of chemical 'building blocks' called amino acids. Your body uses amino acids to build and repair muscles and bones and to make hormones and enzymes. They can also be used as an energy source.
biology homework 1what is Ecosystem? 2 Define Autotrophs and Heterotrophs 3.what is Primary Consumers and secondary Consumers Give Examples
True/False: Mutations that inactivate genes that promote apoptosis often lead to increased risk of developing cancer. g
Answer:
An important difference between oncogenes and tumor suppressor genes is that oncogenes result from the activation (turning on) of proto-oncogenes, but tumor suppressor genes cause cancer when they are inactivated (turned off).
Its true g
Explanation:
i actually dont know
the smallest unit of element is
Answer:
Atoms
An atom is the smallest unit of a pure substance or element that can exist and still retain the properties of the original substance or element. Key concepts: common substances, such as air, water, wood and cloth are mixtures of materials and can be chemically or physically broken down into simpler substances.
what does it mean if a solution has a ph of 3, 12, 2, 7, or 9
An example of a prokaryotic cell would
be...
A. a plant cell.
B. an animal cell.
C. a bacteria cell.
Answer:
A bacteria call
Explanation:
Plant and animal cells are eukaryotic cells
giving brainliest
A triplet of bases in a template strand of DNA is CAG. What would be the corresponding codon for mRNA?
GTC
GUC
GTU
GUU
Answer:
GUC would be the corresponding codon for mRNA.
The corresponding codon for mRNA is GUC.
The instructions of the cellular process are encoded in the form of triplets of bases called codons.
The process of transcription forms the transcript of the DNA molecule in the form of an RNA called mRNA.The sequence of the mRNA is determined by the sequence of the bases of DNA and the new nucleotides are added in accordance with the Chargaff rule.The Chargaff rule suggests that A will bind T (U in case of RNA) and G will bind C.Since the DNA codon is the 5' CAG 3' the nucleotides added will be in sequence 3' GUC 5'.Thus, A triplet of bases in a template strand of DNA is 5' CAG 3' then the corresponding codon for mRNA- 3' GUC 5'.
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In studying layers of rock, which statement is normally true?
A.The older layers of rock are beneath the newer layers.
B.The newer layers of rock contain no fossils.
C.The older layers of rock are above the newer layers.
D.The older layers of rock contain the newest fossils.
Answer:
A
Explanation:
Older rocks are always under the newier rocks :)
Which of the following is true of a scientific theory
Answer:
please put the papers snapshot
On which of the following could a scientific claim be based?
A a famous athlete's speech
B
a religious text
С
superstitions and folklore
D
experiments and studies
Option D
Science is the systematic study of the world around us through observation and experiment. ...
For cells and cellular components- Mitochondrion, Animal cell, ATP, O2, Hexokinase (an enzyme that phosphorylates hexoses (six-carbon sugars)), Ribosome, the correct size order from the smallest to the largest is:
The correct size order from the smallest to the largest is:
Animal cell >> Mitochondrion >> Ribosome >> Hexokinase >> ATP >> O2
The animal cell size is about 20 to 30 micrometers (μm), although it varies according to the type of the cell.The average mitochondria size is approximately 0.75 to 3 μm. The size, number, and structure of mitochondria in an animal cell vary according to type of animal cell.The ribosome size is approximately 0.02 μm in diameter.An enzyme is a macromolecule whose size is variable (its average size is 3–7 nanometers, i.e., 3-7 nm). A micrometer (μm) equal to 1000 nm.The adenosine triphosphate or ATP (the energy coin of the cell, which is composed of a five-carbon sugar, three phosphate groups, and adenine) and molecular oxygen (O2) are both simple molecules whose sizes are very small compared to enzymes.Learn more in:
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What must generalizations be backed by to be accepted in science?
Answer:
the last one
Explanation:
Which below is not a process by which carbon dioxide enters the
atmosphere? *
Answer:
Photosynthesis
Explanation:
Plants use photosynthesis to benefit themselves not the atmosphere.
true or false the independent variable is graphed on the y-axis
Answer:
False
Explanation:
"The Axes. The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line)."
- https://www2.nau.edu/lrm22/lessons/graph_tips/graph_tips.html#:~:text=The%20Axes,%2Daxis%20(vertical%20line).
which element provides strength to the exoskeletons of clams and oysters?
Answer:
Explanation:
Since Phosphorus is an essential component of phospholipids, nucleic acids, phosphoproteins (casein), high energy phosphate esters (ATP), hexose phosphates, creatine phosphate, it also provides strength to the exoskeletons of clams and oysters.
Need help ASAP, will give brainliest!
1. How are wavelength, frequency and energy related to each other?
2. What is “Roy G. Biv,” and what does it stand for?
3. Light reflects off the medium at a ___ angle to which it initially struck the material. This means that if light hits a mirror at a 40° angle, it will bounce off at a ___ degree angle.
4. Describe how light interacts with these materials:
Mirror:
Glass of water:
Dark fabric:
5. ___waves need to interact with particles of either a solid, liquid, or gas to travel
6. What’s the difference between states of matter and phase of matter?
I know it’s a lot but PLEASE!!!!! I’m desperate
Answer:
Explanation:
red orange yello green blue indago volit for the 2 one sryy if i cant do the rest
A section of DNA called a __________ codes for the production of _____________.
name atleast one characteristic of living things
Answer:
Growth
Explanation:
the boy was five inches taller within a year
1. Is it advisable to switch the microscope on while looking through the eyepiece?
Answer:
yes ithink its important to switch on
which part of the heart generating the forces that push blood into arteries
Answer:
The right and left sides of the heart are further divided into two top chambers called the atria, which receive blood from the veins, and two bottom chambers called ventricles, which pump blood into the arteries.
please mark me brainliestState TWO ways in which the mating call of the new isolated
southern frog population differs from the north population of frogs.
(2)
Suggest why the new isolated southern population of frogs could be
considered a separate new species.
(2)
Describe how it can be proven that the new isolated southern
population of frogs is a different species.
(2)
4
Answer:
tropicalis, or Western clawed frog. While the two can interbreed, the offspring survive only if the mother is African. With the occasional appearance of coydogs, pizzlies and ligers, it's clear that different species can often interbreed, even if the offspring are infertile.
Which of the following is not a freshwater ecosystem?
a. lakes
b. rivers
C. seas
d. springs
Answer:
c
Explanation:
seas water isn't fresh water
Answer:
seas is not a freshwater ecosystem
Explanation:
