Adaptation is a mechanism of species to survive and reproduce in their environments, adjusting to selective pressures. Cactus: leaves, stems, spines.
What is adaptation?
In biology, adaptation might be defined as the mechanism of organisms to improve their fitness in the environment in which they live, adjusting to different changes and selective pressures acting on them.
Adaptation involves molecular, physiological, morphological, and behavioral changes.
For these changes to persist and be transmitted from generation to generation, they must increase the individual's fitness. They must increase the individual survival and reproductive probabilities, making it more competitive.
A good and easy to unsderstand example of adaptation is the cactus.
Cactusses are plants adapted to dry and hot environments like deserts, where water availability is scarse and temperatures are high.
To avoid dehydration, cactusses have developed wide palmated or cilindirical stems and reduced or vestigial leaves.
They use stem tissues to store water. Vestigial or reduced leaves to avoid transpiration and water loss.As their leaves are not developed, their stems photosynthetize to produce organic compounds.
Some species are very rich in water and nutrients, so they turn to be covetted by other species. Animals living in the same environment look for them as a source of food.
To avoid predation, cactusses have developed large and numeros spines that are leaves modifications. This is another adaptation to avoid being eaten by animals and avoid loosing water through leaves.
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In Mendel's second set of experiments, he crossed
the offspring of his first set of experiments. Which
of the following statements summarizes his results
from this set of experiments?
O A. In each case, about half of the offspring
presented each trait.
B. In each case, the offspring presented a
different trait from the parent plants.
O C. In each case, about three-fourths of the
offspring presented one form of the trait,
and about one-fourth presented the other
form.
O D. In each case, one form of the trait
disappeared in the offspring, and one form
appeared in the offspring.
Answer:
c
Explanation:
i think
What purpose does the endosperm serve in the seed?
Answer:
Supporting embryonic growth
Explanation:
The endosperm plays an important role in supporting embryonic growth by supplying nutrients, protecting the embryo, and controlling embryo growth by acting as a mechanical barrier during seed development and germination.
Answer:
Supporting embryonic growth
how forests can be better managed ?
HELPPPPP ME PLS lol lol lol lol
Answer: 1. chemical weathering
2. mechanial weathering
3. Chemical weathering
4. I believe mechanical??
If theses are not right, I'm sorry for the wrong answers
Explanation:
Answer:
I dont even know-
Explanation:
Which of the following correctly describes how DNA contributes to the traits that appear in offspring? A) DNA contains the instructions for building RNA, which influences traits. B) DNA contains the instructions for building proteins, which create the physical traits of offspring. C) DNA contains the instructions for building carbohydrates, which are responsible for the physical traits of offspring. D) DNA contains the instructions for building enzymes, which catalyze chemical reactions for the traits of offspring.
DNA attributes to the genotype preference to the individual. DNA contains the instructions for building RNA, which influences traits. The correct statement is answer A.
What is the full form of DNA ?DNA stands for deoxyribonucleic acid.
DNA contains the orders that are needed for any organism in order to develop, survive as well as reproduce. To carry out these duties, DNA sequences are needed to be converted into messages which can be used to produce proteins in which are the complex molecules that are doing most of work in our body.
Since we have two pairs of chromosomes and we also have two pairs of genes in which one is from our father and one is from mother. These pairs of genes then determine certain physical features or traits.
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Can someone tell me if it’s correct
Answer:
yes ur right
Explanation:
The epidermis of a leaf contains which of the following structures
stroma
vascular bundles
stoma
chloroplasts
Answer:
The correct answer is - stoma.
Explanation:
Stoma or stomate is a tiny pore that is found on the surface or in the epidermis of the leaf of plants. These tiny pores present all over the leaf and help in the exchange of gases.
The guard cells are present around these pores and help in the opening and closing of these pores. The carbon dioxide is take in and oxygen moves out with the help of these structures and they assist in the process of transpiration.
Answer:
Stoma
Explanation:
The epidermis is the outer layer of a leaf that houses the stoma
Some suggestions for measures that the United States can implement to avoid contributing to greenhouse gases!
Answer:
1. Increase the use of green renewable energies
2. Promote recycling
3. Controlling industrial greenhouse CO2 emissions from the transportation sector
4. encourage the use of non-polluting means of transport (e.g., walking over road transport)
Explanation:
First, renewable energies are energy sources generated naturally without the use of fossil fuels (e.g., solar energy, wind energy, geothermal energy, etc). Thus, these green energies can replace the use of fossil fuels in a sustainable manner, and therefore reduce the emission of greenhouse gases such as carbon dioxide (CO2). Second, recycling can drastically reduce the amount of energy required to synthesize new products and reduces the need for new materials, being thus also useful to reduce CO2 emissions that result from extracting virgin materials. Third, the industries from the transportation sector produce the largest part of greenhouse gas emissions, thereby encourage the use of green energies in this area may represent a good alternative to reduce CO2 emissions. Finally, it is well known that urban transport generates about 40% of all CO2 generated by road transport, and thereby invest in green transport systems such as bicycling and walking may also represent a useful strategy to reduce CO2 emissions.
Which organisms are secondary consumers in this food web? Select all that apply
Rockskipper, Pufferfish and Peacock Flounder are secondary consumers in this food web. So, the correct options are A, B and C.
What is Food web?A food web is a diagram that shows what is eaten with what in an ecological context and how food chains naturally connect to one another. Consumer-resource system is another term for the food web.
A food web is a comprehensive account of the species that make up an ecosystem and their interactions with one another. It demonstrates how energy is moved along food chains that are connected to other food chains.
After primary consumers, who are primarily herbivores, are omnivores, carnivores, and secondary and tertiary consumers. The apex predators are those animals that have no other predators save humans. They are at the highest point in the food chain.
Therefore, the correct options are A, B and C.
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12 POINTS!!
Semiconductors are materials that conduct electric current better than insulators but not as well as conductors.
Please select the best answer from the choices provided
T
F
Answer:
True
Explanation:
Hope this helps!
Answer:
True :)
Explanation:
How much water on Earth is salt water?
Answer:
97 percent
Explanation:
Science
Answer:
below
Explanation:
Over 97 percent of the earth's water is found in the oceans as salt water. Two percent of the earth's water is stored as fresh water in glaciers, ice caps, and snowy mountain ranges. That leaves only one percent of the earth's water available to us for our daily water supply needs.
Help me more point given if right
Answer:
A
Explanation:
Organisms such as yeast can reproduce through mitotic division. During this type of reproduction, nondisjunction is possible.
True
False
Five-year-olds are ready for:
Preschool.
Kindergarten.
First grade.
Three-step instructions.
Storytelling.
Which biomes would be found nearest to the equator?
tropical rain forests and savannas
tundras and taigas
tropical rain forests and taigas
tundras and savannas
Answer:
Tropical rain forests and savannas
Explanation:
Tundras are found at the north and south poles. Taigas are found in the northern areas but not near the equator.
Answer:
Tropical Rain Forests and Savannas!
Explanation:
Pls Mark Me Brainalist!
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in water. In this experiment the independent variable is The temperature of the water
Explanation is in a file
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what type of adaptation is tobogganing?
a. structural
b. behavioral
c. functional
Answer:
C
Explanation:
A toboggan is a simple sled traditionally used by children. It is well adapted to sliding down open slopes, where its large surface rides easily on loose, fluffy snow.
If red flowers were dominant over white flowers, R is for red flowers, what allele makes sense to represent
white flowers?
A: f
B:F
C:r
D:Rr
The question below is an incomplete sentence. Choose the word that best completes the sentence.
Antlered flies are tiny insects that live in the tropical forests New Guinea.
of
and
or
for
Answer:
of
Explanation:
makes grammatical sense
If the number of chromosomes in an organism is diploid cell is 120 how many chromosomes will the organs have after its diploid cell has undergone mitosis
Help me PLEASEE!!! IT will mean alot
Answer:
I believe the answer is C.
Explanation:
Formula is Glucose + 6 Oxygen makes energy, 6 carbon dioxide molecules and 6 water molecules.
Viruses differ from bacteria cells in that all viruses -
A)Causes insect-borne disease
B)Have rigid cell walls
C)Can be destroyed by antibiotics
D)Must be reproduced in living cells
Answer:
D) Must be reproduced in living cells
Which of the following is a molecule with more than one element?
O Atom
O Bacteria
O Compound
Organism
Answer:
compound
Explanation:
as cited from coolgalapagos.com, "Molecules made of more than one kind of element are called compounds. A compound is formed when one kind of atom (an element) joins to at least one other kind of atom of a different element."
Can u help me please?
need help! The horizontal and vertical lines on a graph. The x is horizontal and the y is vertical.
Answer:
X is horizantal and Y is vertical
Explanation:
Answer:
la respuesta es axis creo
HELP right now please! No websites
How do shale oil and tar sands compare to conventional
(regular) oil deposits?
Answer:
Oil shale is a form of sedimentary rock that contains kerogen, which is released as a petroleum-like liquid when the rock is heated. Tar sands are a combination of clay, sand, water and bitumen, which is a heavy hydrocarbon.
Additional info:
The term oil sands refers to a particular type of nonconventional oil deposit that is found throughout the world. Oil sands, sometimes referred to as tar sands, is a mixture of sand, clay, other minerals, water, and bitumen. The bitumen is a form of crude oil that can be separated out from the mixture.
The primary distinction between crude or conventional oil and shale oil is the way it collects. The oil in shale is typically found in smaller batches. As a result, shale oil often needs to be fractured so that the oil trapped within the shale can be recovered.
Answer:
please give me brainlist and follow
Explanation:
Oil shale is a form of sedimentary rock that contains kerogen, which is released as a petroleum-like liquid when the rock is heated. Tar sands are a combination of clay, sand, water and bitumen, which is a heavy hydrocarbon. Like the kerogen in oil shale, tar sands' bitumen can be upgraded to synthetic crude oil.
Plants need three things for photosynthesis to occur: water, carbon dioxide and sunlight. How do those things enter a plant? Water, along with important minerals, enters a plant from the soil where the plant's roots act like straws "drinking" it up. Carbon dioxide enters a plant from the atmosphere, and it comes in through the leaves. More specifically, carbon dioxide enters a plant through tiny pores or openings on leaves called stomata. Sunlight, obviously, comes from the sun. But how does it enter the plant to be converted into chemical energy that the plant can use? Well, green plants are green because of a pigment called chlorophyll. That pigment inside of plant cells absorbs the sun's energy, making it possible for photosynthesis to occur.
Based on the passage, if human cells had a lot of chlorophyll, they would most likely
A
not need to drink water.
B
be green.
C
breathe carbon dioxide.
D
have leaves.
liver damage leads to impaired digestion of fats .explain the statement
Answer:
the liver has multiple functions in the body but its main function is to process nutrients that are absorbed from the small intestine.
Which state experiences, on average, the highest wind speeds?
A. Montana
B.Texas
C. Colorado
D. Massachusetts
E. North Carolina
Answer:
b Texas bc they the closest to the water