Answer:
found in shallow ocean water
Which of the following is the best definition for the term "evolution"?
Group of answer choices
A change in the frequency of genes in a population over time
A measure of the successfulness of the most fit creatures in a population
A measure of the change of a specific trait in an individual over time
A change in the shape of an individual or group over time
A change in the abilities of the strongest creatures in a population
Answer:
it is option c
Explanation:
In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.
You have isolated two known bacteria with slightly different DNA patterns and have placed them in an environment with some unknown elements. After some time, you observe that cell No. 1 now has a different DNA pattern. Your goal is now to find out whether this new DNA was obtained by the cell from transformation or conjugation (and you know that it can only be from one of these two methods). Which of the following would be valid to investigate?
Test cell No. 1 for excised DNA that has been relocated
Test for foreign, similar DNA in the environment
Test for the presence of bacteriophages in the environment
Test for the presence of DNA patterns from cell No. 2 in cell No. 1
1 and 3
1 and 4
1, 2, and 4
2 and 4
Explanation: foreign, similar DNA in the environment
Which is not included in a niche that a
species occupies?
A. the habitat that the species lives in
B. the diet of the species
C. the species' step on a food web
D. the population size of that species
A student wants to know the effect a mutation might have on a species survival. The change causes a rabbit to have mottled brown fur. The student runs a computer simulation for ten generations.What possible conclusions can you draw
Answer: A. Evolution occurred because the allele frequency changed over time.
C. The rabbits with mottled brown fur have a selective advantage that gives them more camouflage from predators.
E. The mutation had a positive effect, allowing those rabbits with the mottled brown fur to survive and reproduce better than those with the brown or white fur
Explanation:
Based on the information given, the possible conclusion that can be drawn from the options given are:
A. Evolution occurred because the allele frequency changed over time.
C. The rabbits with mottled brown fur have a selective advantage that gives them more camouflage from predators.
E. The mutation had a positive effect, allowing those rabbits with the mottled brown fur to survive and reproduce better than those with the brown or white fur.
Therefore, the correct options are A, C and E.
Distinguish between gaseous exchange and respiration
Answer:
Respiration is the process in which food is oxidized to release energy. Complex organic compounds are converted into simpler ones, e.g glucose into CO2 water and energy released. Gaseous exchange is the diffusion of gases from a region of higher concentration to a region of lower one.
Explanation:
Breathing is the physical process by which air is passed on a gaseous exchange surface i.e. ventilation of the gaseous exchange surface. It involves Inhalation and Exhalation.
Gas/Gaseous exchange is the process whereby gasses diffuse across a gaseous exchange surface. In humans, oxygen diffuses from the inhaled air into the blood and carbon dioxide diffuses from the blood into the exhaled air. The gaseous exchange surface here being the Alveoli.
Respiration is the metabolic process whereby organic molecules are broken down to release energy in the cells. In humans, this process takes place inside the mitochondria of cells. Aerobic respiration requires oxygen whereas qnqerobic respiration takes place in absence of oxygen.
Help me plssss I think it’s option D
Answer:
yes d is the answer...
please make me brainlieast..and follow. me
b) Name one thing that would increase the carrying capacity of the moth ecosystem. (3 points)
Answer: Abrupt deaths of some moth populations
Explanation: I have the answer key
Matthias Schleiden and Theodor Schwann made which contribution to science?
A. Discovered that new organisms do not spontaneously arrive in suitable conditions, but must be brought there.
B. Discovered the process plants use for energy, photosynthesis.
C. Discovered a basic principle of chemistry, that all matter is composed of atoms.
D. Discovered a basic principle of biology, that all plants and animals are made of cells.
Matthias Schleiden and Theodor Schwann made a significant contribution to science as they discovered a basic principle of biology, that all plants and animals are made of cells. So the correct option is option D.
Matthias Schleiden and Theodor Schwann made the contribution of discovering a fundamental principle in biology known as the cell theory. In the 1830s, they independently proposed that all plants and animals are composed of cells. Their work laid the foundation for our understanding of the structural and functional units of life. Together, the contributions of Schleiden and Schwann formed the basis of the cell theory, The correct option is option D.
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What is the relation between leaf venation and the type
of roots?
Answer:
When the veins in leaves are irregularly distributed to form a channel, it is known as reticulate Venation. Plants with reticulate venation in their leaves are likely to have tap roots. Plants like carrot or rose have leaves with reticulate venation and tap roots.
Explanation:
hope it helps :D
Answer:
Explanation:
those plants that have parallel venation leaves have fibrous root system and the plant that have reticulate venation of leaves have tap root system.
What are the four nitrogen bases in DNA (check all that apply)?
thymine
guanine
adenine
uracil
cytosine
thymine
adenine
cytosine
guanine
Explanation:
uracil is not because uracil is only RNA.
Answer:
Thymine, guanine, adenine and cytosine.
Explanation:
Uracil is not one of the four nitrogen bases in DNA.
What replaces peptidoglycan in the cell wall of Archaebacteria?
Answer:
S-layers
Explanation:
What form is DNA in during mitosis?
A. protein
B. ribosome
C. chromatin
D. chromosomes
Answer:
Chromosomes form is DNA in during mitosis.
Explanation:
In the context of the cell cycle, mitosis is the part of the division process in which the DNA of the cell's nucleus is split into two equal sets of chromosomes.
During mitosis, DNA is in the form of chromosomes, which is option D, as the chromosomes are condensed and highly coiled structures made up of DNA and associated proteins called histones.
During mitosis, a cell divides into two daughter cells that are genetically identical to the parent cell. Chromosomes are critical to this process because they carry the genetic information necessary for the formation of the new cells, and before mitosis begins, the chromatin (a complex of DNA and proteins) in the nucleus of the cell condenses into visible chromosomes. This condensation process involves the compaction of chromatin into a more compact and organized structure.
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Would you classify a fruit, such as an apple, as a cell, tissue, organ, or organ system? explain.
Answer:
organ it has a true roots ,stem and leaf
What plasma membrane component can be either found on its surface or embedded in the membrane structure?
Answer:
Carbohydrates. Carbohydrates are the third major component of plasma membranes. They are always found on the exterior surface of cells and are bound either to proteins (forming glycoproteins) or to lipids
¿Qué tipo de célula apareció primero en la Tierra?:___, y se presentan en seres vivos como las:___ y se caracterizan porque:___. *
Answer:
Célula procariota y procariotas.
Explicación:
La célula procariota es un tipo de célula que apareció por primera vez en la Tierra hace unos mil millones de años. Estos tipos de células están presentes en los procariotas, lo que significa que estos organismos no tienen un núcleo verdadero o una membrana nuclear alrededor del núcleo y otros orgánulos de la célula. El ADN del organismo procariótico se encuentra en una parte central de la célula que se conoce como nucleoide. La pared celular de un procariota actúa como una capa adicional de protección, ayuda a mantener la forma y estructura celular y previene la deshidratación.
52) Which subject that we have studied does not have a kingdom classification?
53) What is the classification name of the Spanish flu?
54) What is the classification name of the Asian flu?
55) What is the classification name of the Hong Kong flu?
56) What is another name for polio?
57) Who found the first clinical polio case?
- 58) What disease can sometimes cause an enlarged spleen?
- 59) What virus travels through tiny breaks in the skin?
- 60) Who reigned in England from 1837 - 1901?
- 61) What is the earliest surviving valentine dated?
62) What represents beauty and youth?
-63) Dark crimson represents what?
64) Archaebacteria is comprised of Halophiles, Thermophiles, &?
65) What is in the shape of a sphere?
.66) What shape is a bacillus?
67) What shape is a spiral?
-68) Who developed Gram staining?
69) What color is Gram +?
-70) What color is Gram - ?
71) What is the only common thing among protista?
72) What type of protista are Sarcodinians, Zooflagellates, Ciliophorans, & Sporozoans?
73) What protista make up the white cliffs of Dover?
-74) What do amebas use to move?
75) What do protista form to survive harsh conditions?
76) What causes malaria?
77) What protista are covered with silica?
78) What resemble both algae and protozoans?
79) What are green algae called?
80) What is the translation of Rhodophyta?
81) What is an example of red algae?
82) What is the name for brown algae?
-83) What is the name for an algae's spore producing stage?
84) What fungus has a Plasmodial feeding stage?
85) What causes African sleeping sickness?
86) What is a poison in shell fish?
87) What is used to thicken soups?
88) What are the most typical unicellular fungi?
89) What are the most typical multicellular fungi?
90) What supports the cap of a mushroom?
91) What protects a mushroom's spores?
92) What is a name to say how fungi eat?
93) What is the name for common molds?
94) What is the name for club fungi?
ime for a sac fungi?
Answer:
e
Explanation:
This type of gland may be associated with polythelia
O A. Merocrine gland
B. Sebaceous gland
C. Apocrine gland
D. Mammary gland
E. Ceruminous gland
Answer:
functions with the mammary gland
Explanation:
D
what effect will an invasive species have on the carrying capacity of an ecosystem?
a) the carrying capacity will increase for those in competition
b) the carrying capacity for all animals will stay the same
c) the carrying capacity for everyone will decrease and then increase rapidly
d) the carrying capacity will decrease for those in competition for same resource
The effect an invasive species will have on the carrying capacity of an ecosystem is the carrying capacity will decrease for those in competition for same resource.
What is invasive species?An invasive species refers to an organisms such as amphibians,plant, insect, fish, fungus, bacteria that is not native to an ecosystem but it is introduced into the ecosystem and causes harm to the native species. They can harm the environment and also humans.
Therefore, The effect an invasive species will have on the carrying capacity of an ecosystem is the carrying capacity will decrease for those in competition for same resource.
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Viruses can't replicate without a host cell.
A. True
B. False
Answer:
True
hope this helps
have a good day :)
Explanation:
Viruses cannot reproduce by themselves, they must have a living host cell in order to multiply.
The data table below shows the presence or absence of DNA in four different cell organelles.
Information in the table suggests that DNA functions
A. within cytoplasm and outside of the cell membrane
B. both inside and outside of the nucleus
C. only within energy-releasing structures
D. within cell vacuoles
What is the main function of the nervous system? How does it do its main job? (USE YOUR OWN WORDS)
Answer:
The nervous system is the major controlling, regulatory, and communicating system in the body.
Explanation:
It is the center of all mental activity including thought, learning, and memory. Together with the endocrine system, the nervous system is responsible for regulating and maintaining homeostasis.
One can conclude that the are benefited by the . The triggerfish are
Answer:
• One can conclude that the Small Fishes are benefited by the Titan Triggerfish.
• The Triggerfish are Neither Harmed Not Helped.
;)
How do fossils demonstrate evidence of evolution?
A. They show that ancient species share similarities with species now on Earth.
B. They show evidence of species that are now extinct.
C. They are the primary source of evidence of natural selection.
D. Fossils reveal that many species have remained unchanged for millions of years.
Answer:
A
Explanation:
A is the answer because it shows that evolutionary change over time
all of the following are part of the three principles of natural selection except
A.) competition
B.) variation and adaptation
C.) fitness
D.) genetic recombination
Answer:
D: genetic recombination
Explanation:
Answer:
D: genetic recombination
mars has ice caps containing frozen CO2 and H2O, and little to no atmosphere. It’s lack of atmosphere causes it to very hot in the day and very cold at night. Which of the following would not occurs on mars if the ice caps are heated to a gas?
A. Increased greenhouse gases
B. Less extreme temperature differences between day and night
C. Cooling of the planet
D. CO2 Gas available to grow plants
Answer:
d
Explanation:
What is the main difference between a scientific law and a theory?
Answer:A scientific law is something that will happen 100 percent of the time
but a thoery is something u think will happen like a hypothsis
Explanation:
Elaborar un Mapa Conceptual con datos cualitativos y cuantitativos procesados sobre los cromosomas, la terminología genética y caracteres hereditarios.
Answer:
Los cromosomas son componentes de células complejas (eucariotas) en las que se almacena la información genética necesaria para la herencia de propiedades. Un cromosoma contiene ácido desoxirribonucleico (ADN), en el que se codifican los genes, así como varias proteínas, especialmente histonas. En los organismos eucariotas, que incluyen plantas, hongos, animales y, por tanto, también seres humanos, los cromosomas son componentes regulares en el núcleo celular.
Cual elección mejor resume el resultado del experimento de Redi?
Redi definió con precisión la palabra vivo.
Redi refutó la generación espontánea.
Redi demostró que las moscas provienen de carne podrida.
Redi demostró que los seres vivos pueden provenir de cosas no vivas.
DONE
Nonmetals are defined as elements that generally cannot
conduct _____
and are poor conductors of heat.
Answer:
they can not conduct electricity
Non-metals are defined as elements that generally do not conduct electricity and are poor conductors of heat.
What are elements?
It is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom. Due to this reason all elements are different from one another.
Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.
The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.
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Humans grow, develop, and heal because cells can reproduce themselves. This cellular reproduction is called ______________. *
