Answer:
23.
Explanation:
In human cells undergoing meiosis, for instance, a cell containing 46 chromosomes yields four cells, each with 23 chromosomes.
name the main branches of biology
Answer:
Microbiology
Anatomy
Physiology
Explanation:
have a good day!
Which of the following activities directly reduces
land pollution?
A. Walking to a store instead of driving
B. Allowing motor oil to drain into the street
C. Using natural fertilizers rather than
chemical pesticides
D. Disposing of garbage in a landfill
Answer:ur mom
Explanation:
In humans, brown eyes (B) are dominant over blue eyes (b) and dark hair (D) is dominant over blonde hair (d). If a woman with blue eyes and hybrid dark hair and a man with hybrid dark hair and hybrid brown eyes have children, what would be the phenotypic ratios among their children?
PLZ help i need this done by tmrw:(
Answer:
is D
Explanation:
Sulfuric and nitric acids are ___ pollutants that form acid precipitation.
Answer:
ozone is bad because it can damage living tissue ... Sulfuric and nitric acids are ___ pollutants that form acid precipitation. secondary.
Lifestyle choices Definition
Answer: Lifestyle choices are personal decisions to perform a behavior.
Answer:
the choices that you make that affect your lifestyle
Explanation:
The choices that affect how you live your life
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If you are observing worms, ants, and caterpillars, you are studying a biological _________________.
A. community
B. species
C. individual
D. population
E. none of the above
If you are observing worms, ants, and caterpillars, you are studying a biological species. Thus, the correct option is B.
What is Biological species?Biological species may be defined as a cluster of organisms that can reproduce with one another in nature and produce fertile offspring.
A Community may be defined as a group of individuals belonging to different species living in the same area. A Population may be defined as the number of the same species living in the same area at a particular time.
Here, worms, ants, and caterpillars are organisms of different species with different characteristics such as mode of nutrition, reproduction, and response to the environment.
The biological species are considered as an integral part or component of an ecosystem. The greater the biodiversity in an ecosystem, the greater the stability of the species within that ecosystem.
Therefore, if you are observing worms, ants, and caterpillars, you are studying a biological species. Thus, the correct option is B.
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Reproductive isolation occurs when
A- some catastrophic event greatly reduces the size of the population
B- The gene pool of different populations have become very diversified
C-members of different populations can no longer meet successfully
D-small numbers of individual moves and starts in new population
Answer:
The correct answer is - C. members of different populations can no longer meet successfully.
Explanation:
Reproductive isolation is the process that occurs when two or more species or populations are not able to interbreed. The mechanisms or properties that are used to preventing individuals of separate species from mating called Reproductive isolation mechanisms.
The different barriers can cause this reproductive isolation such as different mating seasons. These barriers could be behavioral or temporal or ecological isolations.
The blood loses most of its carbon dioxide in the lungs. True or False
Which condition is necessary for a mold fossil to form?
The fossil must be preserved in amber.
Minerals must replace the remains.
The mold must be filled with sediment.
Hard parts of the organism must dissolve.
Answer: The answer is Hard parts of the organism must dissolve
Explanation:
Carbon dioxide is carried in blood plasma.
Human blood also contains red blood cells and white blood cells.
Explain how the structure of red blood cells and white blood cells is related to their function.
(6 marks)
Answer:
Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in. Red blood cells are responsible for carrying oxygen and carbon dioxide. Platelets are responsible for blood clotting. White blood cells are part of the immune system and function in immune response.
Blood is important for regulation of the body’s pH, temperature, osmotic pressure, the circulation of nutrients and removal of waste, the distribution of hormones from endocrine glands, and the elimination of excess heat; it also contains components for blood clotting. Blood is made of of several components, including red blood cells, white blood cells, platelets, and the plasma, which contains coagulation factors and serum.
Which level of classification contains orders but is smaller than phylum?
kingdom
family
class
species
Answer:
answer is C Class
Explanation:
Class is the level of classification contains orders but is smaller than phylum.
What is biological hierarchy?Biological hierarchy refers to the organization of living organisms into a series of levels, each level being more complex than the one below it. The biological hierarchy begins with the smallest unit of life, which is the cell, and progresses upward to include tissues, organs, organ systems, organisms, populations, communities, ecosystems, and ultimately the biosphere.
Each level of the biological hierarchy is characterized by different properties and interactions. For example, cells are the basic unit of life and perform all the essential functions of an organism. Tissues are groups of cells that work together to perform a specific function, such as muscle tissue, which is responsible for movement. Organs are structures made up of tissues that work together to perform a specific function, such as the heart, which pumps blood throughout the body.
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10POINTS !!!!!!
⚠️please help me ⚠️
Answer:
1. Trait
2. Gene
3. Allele
if three or more subunits of glucose connect together they create a _________
Someone please help me answer this. I’ll give you brainliest.
Answer:
B homeostatis
Explanation:
Answer:
B. Homeostasis
Explanation:
Homeostasis is the ability to maintain a stable internal environment. When your body overheats from exercising, you will start to sweat as a way to cool down your body temperature and return it to normal.
15. How are increasing temperatures likely to affect agriculture?
A. Cz and C4 plants will be affected differently.
B. Less water will be needed to irrigate.
C. Insects will be able to thrive farther away from the equator.
D. Nitrogen will be more available to plants.
Describe the main function of each biomolecule and then give an example for each.
Lipid -
Carbohydrates -
Nucleic Acids -
Protein -
Describe the main function of each biomolecule and then give an example for each.
Lipid -
Carbohydrates -
Nucleic Acids -
Protein -
Answer:✰Lipids↷
Precursors of hormoneIt helps in digestionIt provides store of energyIt provides metabolic fuelCarbohydrates✰↷
Main source of energySpare protein from being burned so it can be used to build and repairDietary fiber can help lower blood cholesterol✰Nucleic Acids↷
Information storage (DNA)protein synthesis (RNA)Energy transfers (ATP and NAD)Protein✰↷
The main function of protein is to repair the bodies Tissues and cells.It's used to make enzymes & HormonesIt's mainly known for it's contribution towards building muscle as well as the repair of bone , cartilage & skin.Hope it Helps
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Which country is heavily dependent on tourism for its livelihood?
United States
China
Dubai
Peru
Japan
Answer:
Its peru
Explanation:
Just took the test
Please help! (I’ll give 5 stars)
6. Plates slide past one another at ________________________ plate boundaries.
Answer: When oceanic or continental plates slide past each other in opposite directions, or move in the same direction but at different speeds, a transform fault boundary is formed.
Explanation: No new crust is created or subducted, and no volcanoes form, but earthquakes occur along the fault. The transform fault boundaries connect spreading centers and subduction zones, which are the other elements of the jigsaw puzzle of the Earth’s plates.
Which of the following describes a way that a person's health can be affected by heredity?
A person with a family history of obesity is less likely to enroll in a weight loss plan.
A person with a family history of obesity is more likely to catch a common cold.
A person with a family history of high blood pressure is more likely to have heart disease.
A person with a family history of cancer is less likely to be screened for cancer.
Answer:
A person with a family history of high blood pressure is more likely to have heart disease.
Explanation:
The other answers aren't really hereditary. This is the only answer that is directly affected from hereditary.
All the following actions will help prevent injury when operating equipment on a farm EXCEPT
Gene expression is complex, requiring many macromolecules and events. This means....lots of vocabulary terms!!! Complete this matching to show me your mastery of the language. You may want to read the introduction to Lab 15: Gene Expression.
molecule that serves as a template for mRNA synthesis
name of the process my which RNA is made
name of the enzyme that makes RNA
direction of RNA synthesis
where transcription occurs in prokaryots
where transcription happens in eukaryots
where RNA polymerase binds in DNA to begin transcritpion
molecule that serves as a template for protein synthesis
organelle responsible for assembling a protein
where ribosomes bind to begin translation
process of making a protein using mRNA
triplet in mRNA coding for a specific amino acid. start or stop signal
anticodon
where an amino acid is attached in the tRNA
A.
cytosol
B.
nucleus
C.
at the 3' end
D.
first AUG from the 5' end of mRNA
E.
5' --> 3'
F.
mRNA
G.
promoter
H.
DNA
I.
RNA polymerase
J.
triplet on tRNA complementary to codon
K.
translation
L.
ribosome
M.
transcription
N.
codon
RNA ribsome
codon hjdkdmdydjms
Do mutations always lead to evolution?
Yes, because mutations create adaptations that give a competitive advantage.
No, because most mutations lead to death of the organism.
No, because some mutations happen in the body cells, so they are not passed on.
Yes, because there would be no change in populations without mutations.
Answer:
Yes, because mutations create adaptations that give a competitive advantage.
Explanation:
Answer:
No, because some mutations happen in body cells, so they are not passed on
Your welcome
what type of air mass forms over a cold region of the world?
Explanation:
Arctic air masses form in the Arctic region and are very cold.
A building project caused many small mammals and insects to leave an area. What effect could this have on plant reproduction in that area?
a. less pollination and less seed dispersal
b. more pollination and more seed dispersal
c. more fertilization but less seed dispersal
d. less fertilization and more seed dispersal
Why is tRNA called Transfer RNA?
A. Because it is responsible for transferring the protein out of the cell.
B. Because it is responsible for transferring the protein-building instructions to the ribosome.
C. Because it is responsible for transferring the right amino acid to the ribosome to create the protein.
Answer:
C
Explanation:
When a tRNA recognizes and binds to its corresponding codon in the ribosome, the tRNA transfers the appropriate amino acid to the end of the growing amino acid chain.
Answer:
C. Because it is responsible for transferring the right amino acid to the ribosome to create the protein.
Explanation:
The tRNA is known as the Transfer RNA because it is responsible for transferring the right amino acid to the ribosome to create the protein.
Light of different wavelengths look like different colors to humans. true or false
Answer:
Light of different wavelengths look like different colors to humans. True
Answer:
True
Explanation:
Light of different wavelengths look like different colors to humans.
hope it is helpful to you
The United States is the only nation that did not manage natural resources well during the industrial era.
True
False
Answer: False
Explanation:
Many industrialized countries did not effectively manage resources during the industrial era.
servere headache may cause please help im terribly having an headache
Answer:
oop
Explanation:
who created the naming system
Answer:
Carl Linnaeus
Explanation:
Carl Linnaeus
Explanation:Answer:
Carl Linnaeus
In truth, Linnaeus adopted their work and is responsible for the formal introduction of the naming system into the scientific world through his 1735 publication Systema Naturae which listed around 10,000 species consisting of 6,000 plants and 4,236 animals.
good luck!
i really need someone to help pleasee
Answer:
B) Stars form large groupings.
Explanation:
A star clusters are large groups of stars. So option b is basically the same thing.
Hope this helps! :)