Lamarck's ideas about evolution include the concept that differences among the traits of
organisms arise as a result of
O continual increases in population size.
the actions of organisms as they use or fail to use body structures.
an unchanging local environment.
the natural variations already present within the population of organisms.
According to Lamark's theory of evolution, differences among the traits of
organisms arise as a result of the actions of organisms as they use or fail to use body structures.
The theories of evolution try to explain the changes that occur in living things as new species replace existing ones. There have been two main theories that seek to explain the evolution of organisms'
Darwin's theoryLamark's theoryThe theory of Lamark deals with use and disuse of body parts. Body parts that are not used begin to degenerate and only appear as relics in new species. A typical example of this is the appendix in humans. Hence, according to Lamark, differences among the traits of organisms arise as a result of the actions of organisms as they use or fail to use body structures.
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What is the complementary sequence of DNA to this DNA strand?
Original DNA Strand: TGACGGTA
C matches with G and A matches with T, so:
TGACGGTA
matches with
ACTGCCAT
Answer:
ACTGCCAT
Explanation:
complementary means you can form a double- stranded structure by matching base pairs.
In this case we have TGACGGTA and the matching pairs are ACTGCCAT.
As a wave nears shore, the wave height increases and the wavelength
Select one:
a. doubles.
b. stays the same.
c. decreases.
d. increases.
.What might happen to cells with DNA that has been damaged by an environmental influence such as UV light from the sun or a tanning bed?
Answer:
It can lead to melanoma or a time of skin cancer.
Explanation:
This is because UV radiation in sunlight can destroy the DNA by destroying the base pairing. UV light will cause two Thymine that are very closer to each other to join together to produce dimer. After which, The melanin-assisted process form lesions that is popularly called cylobutane pyrimidine dimers in DNA, which can result in mutations that cause melanoma which is a form of skin cancer
Original DNA strand: ATT TGA GCC
Mutated DNA strand: ATT TGA GAC C
12. Which substance can enter a cell by diffusion without having to be digested?
1. water
2. starch
3. protein
х
4. fat
Answer:
Water
Explanation:
Starch is digested by amylase
Protein is digested by protease
fat is digested by lipase
Water is the only one not digested by anything
A dichotomous key for identifying fish is shown.
3a
5a
la Body is long and narrow...
..... Go to 2
1b. Body is not long and narrow.
.Go to 3
2a Pointed fins..........
..Trumpetfish
2b Fish has smooth fins...........
.Moray eel
Eyes located on top of the head......
.Go to 4
3b Eyes located on either side of the head.. ..Go to 5
4a
Long, whip-like tail.........
........ Spotted eagle ray
4b
Short, blunt tail..
...Peacock flounder
Body is spotted.........
...Go to 6
5b Body is not spotted...
..... Go to 7
ба Chin whiskers present...
Spotted goatfish
6b Chin whiskers absent..
...Bandtail puffer
7a
Striped............
.... Go to 8
7b No stripes.....
........Glassy sweeper
8а V-shaped tail...
..Squirrelfish
8b Blunt, rounded tail........
.... Glasseye snapper
Based on this key, which two fish have eyes located on either side of their head and are not spotted?
Glassy sweeper and squirrelfish
Glasseye snapper and spotted eagle ray
Spotted goatfish and bandtail puffer
Peacock flounder and glassy sweeper
Answer:
A.glassy sweeper and squirrelfish
Explanation:
I took this test already and got that question correct
Glassy sweeper and squirrelfish are two fishes that have eyes located on either side of their head and are not spotted. Hence, option A is correct.
What is the dichotomous key to identifying fish?Making use of a dichotomous key is one method of fish identification. These keys use a sequence of paired (two) choices based on an organism's physical traits to exclude potential candidates for the organism's identity.
The shape of fish's heads, the location of their mouths, the type and location of their fins, and their average adult size are some traits that set them apart.
When combined with other characteristics like geographic range, color patterns like vertical stripes or fin patches may also aid in differentiating fish. Hence, option A is correct.
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Name two shapes coral can be found in.
A strand of DNA contains the bases adenine, cytosine, cytosine, and guanine, in that order. Which would be the order of the bases on the opposite strand of DNA?
I NEED HELP ASAP WILL GIVE 30 BRAINLIEST
What type of galaxy is pictured below?
A) Irregular
B) Spiral
C) Lens
D) Elliptical
Polar bears are adapted to stay warm by growing thick fur. These organisms most likely live in a
A.) tropical rain forest
B.) tundra
C.) desert
D.) temperate rain forest
Answer:
b
Explanation:
polar bear has thick fur to stay warm so it more an likely lives somewhere cold so it would be the tundra
The energy in molecules has been stored in the
1.protons
2.Bonds
3.electrons
4.neutrons
Answer:
It should be 2- Bonds
Explanation:
Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules.
:)
How are cactus adapted to survive in the desert ?
Answer:
There are many adaptations which allows a cactus to survive in a desert.
Explanation:
A cactus has fleshy, succulent stems which store water used by the plant when water is scarce. A cactus has long roots to find water under the sand in deserts. Most importantly it has thorns which prevent the rate of transpiration and also it avoids the plants form being eaten by animals.(Hope this helped ;))
PLZ HELP!Which option is the most exact conclusion about the agricultural methods being used in the following scenario?
An entomologist performs an extensive survey of insect life on an agricultural site. The results show a large and very diverse range of beneficial species, pest-species, and neutral insects filling all possible roles and suited to many microenvironments. The diversity is shown within both small, single site samples and across the board in all sampling sites.
The methods are those of extensive monoculture.
The primary pest management system is trapping and mechanical removal.
The land has been developed using only crop rotation as a polyculture technique.
The methods are those of intense polyculture.
Answer:
The methods are those of intense polyculture.
Explanation:
Edge 3/2021
Margaret tells her friends that she caught a fish called Salmo salar. What genus does the fish belong to? Explain how you know.
Answer:
Histrio?
Explanation:
According to this theory, how did mitochondria evolve?
Answer: Mitochondria evolved from endosymbiotic prokaryotes that were able to use oxygen to generate energy rich ATP. To prokaryotes then evolved into mitochondria that now power the cells of all multicellular organisms.
Explanation:
Answer:
According to this theory mitochondria evolved from bacteria and somehow became incorporated into the cytoplasm.
Explanation:
i don't know which theory ur talking about but this theory is the endosymbiotic theory
How is a habitat different from a community?
A- A habitat is the natural environment where a community lives.
B- A habitat contains only living components.
C- A community is the natural environment where the habitat lives.
D- A habitat includes only one species and the community contains several.
Answer:
A
Explanation:
I took quiz
Answer:
I hope this helps.
Explanation:
Original strand
A-T-C-C-G-A-T-A
Matching strand
____________
Answer:
T-A-G-G-C-T-A-T
Explanation:
Remember, A and T make matching strands and G and C make matching strands.
If a widow’s peak (W) is controlled by a dominant allele and a straight hairline (w) is controlled by a recessive allele, how would you describe a person whose genotype is Ww?
Answer:
The correct answer is - a heterozygous individual with widow's peak.
Explanation:
In the given case, the dominant character is the widow's peak that is represented by the allele W and the straight hairline is a recessive character represented by the allele w. So, if an individual has both dominant alleles WW it means this individual has widows peek as W is the dominant allele and if this individual has ww allele it means the straight is expressed as no dominant allele to mask the effect of recessive allele w.
In the case of heterozygous that means one copy of dominant and one copy of recessive allele is present that is Ww then this individual have a widow's peak due to the fact that dominant allele will mask the effect of recessive allele.
Someone please help me!
Answer:
B. Channel protein
Explanation:
Channel protein is basically a channel which substances passes through, showing in the picture.
Explanation:
Channel protein because
Which is the correct sequence for the levels of organization?
a
tissue-organism-cell-organ system-organ
b
organism-organ system-organ-tissue-cell
c
organ-organism-tissue-cell-organ system
d
cell-tissue-organ-organ system-organism
All plants autotrophic. But there are no autotrophic animals or fungi. What does it mean when an organism is "autotrophic"?
Answer:
Autotrphic means that the organism can produce their own food through photosynthesis.
HELP WHICHEVER ONE IS RIGHT AND FIRST I WILL REWARD BRANLIEST
thanks
Which BEST describes the role of chlorophyll in energy conversion?
Chlorophyll excites photons of light energy and stores them.
Chlorophyll converts chemical energy into radiant energy.
Chlorophyll converts oxygen and nutrients in order to drive metabolic activities.
Chlorophyll absorbs light and converts it to chemical energy.
Answer:
The person above me is right the answer is D. chlorophyll absorbs light and converts it to chemical energy.
Explanation:
During photosynthesis plants take in light from the sun and convert it into their form of chemical energy which is glucose :)
A normal human cell contains 46 chromosomes. After the "mother" cell divides in mitosis, the new cell contains
Answer: 22? I think
Explanation:
Answer:
23 chromosomes
Explanation:
How the
immune system works, explain why injecting an
antigen from a pathogen would help our immune
system create "memory" of the infection but not
cause the disease.
Answer:
Our immune system produces antibodies against that antigen of pathogen.
Explanation:
Injecting an antigen from a pathogen would help our immune system memorize the infection and protect our body from causing of the disease because our immune system produces antibodies against that antigen so when the pathogen enters our body these antibodies attack on that and prevent them of causing infection in the body so that's why injecting an antigen has to be done from the childhood to prevent diseases.
What is the cellular system
Answer:
A cellphone network. Often spanning an entire country, a cellular system comprises a core network that connects to base stations with antennas on towers that span up to 20 miles in diameter. GSM and CDMA are the two major cellular technologies.
Explanation:
Answer:
Often spanning an entire country, a cellular system comprises a core network that connects to base stations with antennas on towers that span up to 20 miles in diameter. GSM and CDMA are the two major cellular technologies. See cellphone, cellular generations, GSM, CDMA and microcell.
Explanation:
got it from goo gle
Please help on this as well
Answer:
Ima say Animal I and Animal II
Explanation:
I really hope this helps
Answer:
Animal l and Animal ll are most closely related
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Answer:
A
Explanation:
Question 1 (5 points)
The energy driving Earth's systems comes from two sources: heat from the sun and heat flowing out of the moon as it cools at night.
True
False
Question 2 (5 points)
a
The number of fossils would decrease as the layers accumulate.
b
The types of fossils would be similar but would show gradual structural changes.
c
The number of fossils would rise and then immediately disappear.
d
The types of fossils would stay exactly the same in every layer.
Question 3 (5 points)
True or False: A system is a group of parts that work together as a whole.
True
False
Question 4 (5 points)
a
b
c
d
Question 5 (5 points)
This is the principle of _________________ which includes natural processes of all different rates, from abrupt and extreme to barely detectable and very slow.
a
Catastrophism
b
Uniformitarianism
c
Gradualism
d
Biosphere
Question 6 (5 points)
Oceans cover more than ____________of the Earth's surface, making the oceans the largest part of the hydrosphere.
a
40%
b
50
c
60%
d
70%
Question 7 (4 points)
Earth's atmosphere is a mixture of gases, primarily _____________ and ________________.
a
Oxygen and Hydrogen
b
Nitrogen and Hydrogen
c
Nitrogen and Oxygen
d
Oxygen and Helium
Question 8 (5 points)
a
b
c
d
Question 9 (10 points)
Read the questions below and match the correct answer.
Column A
1.
what is called the thin layer of air extending from the surface of the Earth to space.:
what is called the thin layer of air extending from the surface of the Earth to space.
2.
This part of the system consists of all of the water on a planet.:
This part of the system consists of all of the water on a planet.
3.
This is the part of the Earth system that includes rocks, minerals, and landforms on the surface, as well as the molten rock and metals in the planet's interior.:
This is the part of the Earth system that includes rocks, minerals, and landforms on the surface, as well as the molten rock and metals in the planet's interior.
4.
This system consists of the regions of the atmosphere, geosphere, and hydrosphere that are that are occupied by living organisms.:
This system consists of the regions of the atmosphere, geosphere, and hydrosphere that are that are occupied by living organisms.
Column B
a.Bioshpere
b.Geosphere
c.Hydrosphere
d.Atmosphere
Question 10 (4 points)
Numerical Weather Prediction (NWP), atmospheric data from many sources are plugged into supercomputers running complex mathematical models.
True
False
Question 11 (5 points)
The Earth system involves a constant flow of matter through different parts. The flow of matter is caused by _____________________.
a
Energy
b
Resources
c
Gravity
d
Inertia
Question 12 (5 points)
In this image you can see how _______________ has slowly carved away at the mountains.
a
Volcanoes
b
Wind Erosion
c
Storm Erosion
d
Acid Rain
Question 13 (5 points)
Geologic change on Earth's surface may occur suddenly as the result of events, such as an explosive volcanic eruption, an earthquake, or a landslide.
a
Catastrophism
b
Uniformitarianism
c
Experimentation
d
Gradualism
Question 14 (4 points)
Landforms are created and destroyed by competing forces.
True
False
Question 15 (4 points)
Word Bank: Competing Forces, Deposited Sediment, Destructive Forces, Constructive Forces,
1. Landforms are created and destroyed by
2. Physical features on Earth’s surface are caused to grow by
3. This force wears down landforms
4. This can cause landforms to grow
Blank 1:
Blank 2:
Blank 3:
Blank 4:
Question 16 (5 points)
The processes of ___________ and erosion work over time to change once high mountains into smooth, flat plateaus.
a
Climate Change
b
Weathering
c
Gravitational Pull
Question 17 (5 points)
This image below is an example of _________________.
a
A Solar Eclipse striking Earth
b
A UFO striking Earth
c
A comet striking Earth
d
A meteorite striking Earth
Question 18 (4 points)
Weather prediction is extremely valuable for reducing property damage and even fatalities.
True
False
Question 19 (5 points)
Column A
1.
A:
A
2.
B:
B
3.
C:
C
4.
D:
D
Column B
a.Inner Core
b.Outer Core
c.Mantle
d.Crust
Question 20 (5 points)
View the gif below and answer the question.
What process does this gif best represent?
a
Seafloor spreading
b
Convection cycles in the mantle
c
Radiation in the mantle
d
Conduction cycles in the mantle
Answer:
the answer will be False
The letters that make up the genetic code of DNA
Answer:A, C, G, and T are the "letters" of the DNA code; they stand for the chemicals adenine (A), cytosine (C), guanine (G), and thymine (T), respectively, that make up the nucleotide bases of DNA.
Explanation: