Answer:
genetic variation
Explanation:
Tortoises found on the Galapagos Islands can have varied phenotypes. One of the variations in the phenotypes is with regard to
their shells. They can have a domed shell with a hood above the head. The shells without domes lack the hood above the head,
such that the tortoise's neck is always pointing downward. A group of evolutionary biologists studied the tortoise population for
generations on these islands. The study coincided with a severe drought in the area that lasted many years. The data for the
changes in tortoise shell shape is shown here. Evaluate the data and select the statement that is best supported by this data.
Answer: B:The drought decreased the grass and vegetation on the ground, leaving only vegetation on shrubs and trees above the ground. Natural selection selected for the tortoises with the domed shells and hoods.
Explanation:
Answer: b
Explanation:
Why do you think the appearance of the Moon and the stone sphere is similar in this way? (Hint: Think about the light in the image
Answer:
I think I forgot
Explanation:
The Cell Theory also states that all living cells have chloroplasts and a cell
wall.
True or false
Answer:
False
Explanation:
Cell walls are only found in plant cells.
Natural selection will only lead to evolution if it allows for an organism to ________.
a. possess advantageous traits.
b. compete for resources.
c. produce offspring.
d. all of the above.
Answer:
b
Explanation:
Natural selection will only lead to evolution if it allows for an organism to process traits, compete for resources and produce offspring. The correct option is d.
What is natural selection?Natural selection is indeed an evolutionary mechanism. Lifeforms which are better adapted to their surroundings are much more likely to flourish and pass on the genetic traits that helped them thrive. Species change and diverge as a result of this process.
Natural selection, Darwin proposed, is a framework for evolution in which genetic variants that help support life, reproduce and survive as well as become more prevalent in a population over time.
Natural selection will occur if three conditions are met, according to Darwin's theory. These conditions, which are outlined as,
Represent a struggle for survival.Exhibit variation.Undergo inheritance.These are the conditions that are said to be both necessary and sufficient for natural selection.
Natural selection will only result in evolution if an organism is able to process traits, compete for resources, and produce offspring.
Thus, the correct option is d.
For more details regarding natural selection, visit:
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1. Which change is an environmental effect of building dams?
A) weed growth upstream
B) increased fertility downstream
C) increased water temperature upstream
D) sediment builds up downstream
2. How can humans increase the rate of endangered or extinct species?
A) reduce environmental impacts
B) build and populate more zoos
C) pass more laws about land use
D) introduce new predators to an environment
Answer: 1. C) increased water temperature upstream. 2. D) introduce new predators to an environment. brainliest??
Explanation:
The change that is an environmental effect of building dams is increased water temperature upstream, which is in Option C, and humans can increase the rate of endangered or extinct species by reducing environmental impacts, which is in Option A.
What is Human activities on species?Human activities are the primary cause of species endangerment and extinction, so humans must take actions to reduce environmental impacts in order to increase the rate of endangered or extinct species, and by reducing hunting and poaching and restoring degraded ecosystems can help protect endangered species, and reducing carbon emissions and promoting sustainable development can help mitigate the effects of climate change.
Hence, the effect of building dams is increased water temperature upstream, which is Option C, and humans can increase the rate of endangered or extinct species by reducing environmental impacts, which is Option A.
Learn more about human activities here.
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Why do organisms die if they do not have enough water?
Answer:
Organisms need water for the following activities: (1) All cellular processes occur due to water. (2) Transportation of substances in our body takes place by dissolving in water. (3) Terrestrial animals require fresh water for transportation of minerals and for getting rid of waste from their body.
Explanation:
Without water they cant do any of this.
Answer:
Cells will lose water and the chemical reactions take place in water. Without enough water, this can't happen.Explanation:
Need helpppp ASAP A student looks at a white paper through a violet filter what color will she see
Slow cooling of magma produce
Answer:
The magma cools very slowly. As magma cools minerals are formed into an interlocking arrangement producing an igneous rock. As magma cools it undergoes reactions that form minerals. The rate of cooling is very important.
Explanation:
hope this helps
what is the strongest known poison that is undetectable completely
Answer:
The strongest known poision that is undectable completely are:
Arsenic,Cyanide, Thallium
6. Poison Ivy is also known as Rhus toxicodendron. Its species identifier is:
Rhus
poison
toxicondendron
ivy
Answer:
ivy
Explanation:
Answer:
Poison Ivy is also known as Rhus toxicodendron. Its species identifier is:
Rhus
poison
toxicondendron
ivyExplanation:
reproductive isolation occurs when
Answer:
Reproductive isolation can occur when individuals or the populations exhibit differences in the timing of various activities like mating and so on .
I'll give Brainlyest if I can just please hurry
Answer:
hi
Mostly will be earthquake
Answer:
I would say earthquakes, and i also recommend using jiskha to get answers to schoolwork, it gives better answers then brainly. Good luck:)
Explanation:
How is being “cute” for a dog an evolutionary advantage?
Answer:
The more adorable you were, the more likely you were to pass down those cute genetics.
A farming consortium is experiencing serious problems establishing stable and profitable rice production in their Northern California acreage. It is unclear whether the problem is the strain of rice being used, or a range of local environmental issues, including local pests and local soil conditions. Which of the following plant professionals is the company most likely to choose to address this problem?
Answer:
A way that plant professionails can address and fix the problem is by introducing the idea of GMOs and genetically modifying the rice. This would make rice be able to grow in harsh conditions and become sustainable to pests. Also, genetically modified rice is cheaper and will bring in more money.
15. What must occur in order for genetic material to be passed to cells during cell division?
A DNA replication
B RNA synthesis
C osmosis
D diffusion
Answer:
A
Explanation:
the process involves replication of cell's chromosomes, segregation of the copied DNA and splitting of parent cell's cytoplasm
In order for genetic material to be passed to cells during cell division, DNA replication should take place, as in Option A, and the passing of genetic contents varies between mitosis and meiosis.
What is the significance of DNA replication in cells?DNA replication is the process by which the genetic contents of a cell, the DNA, are copied which is a crucial process that occurs in all living organisms and is necessary for the maintenance of their genetic information and the transmission of this information to the next generation, it is essential for cell division and growth, as well as for the repair of damaged DNA and plays a central role in animals and plants, as new life can form and cell division takes place due to this process.
Hence, in order for genetic material to be passed to cells during cell division, DNA replication should take place, as in Option A, and the passing of genetic contents varies between mitosis and meiosis.
Learn more about the significance of DNA replication here.
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PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
B the plants
Explanation:
The first level on a food pyramid has the most stored energy
Please check this for me
Answer:
T
Explanation:
I think you have it right...while panic attacks can happen for no reason (no stimulus), anxiety attacks usually happen for a reason.
Answer:
TRUEE! GOOD JOB :) HAVE A GOO DAY
Explanation:
What happens when a person of blood type B receives blood type A?
Answer:
the white blood cells in your body would attack, in this case blood type A blood cells.
Explanation:
this happens because your body believes that the opposing blood type is bacteria, and is trying it kill you
4. Predict what a fossil that illustrates the
evolution of a bird from a reptile might look
like.
Answer:
The discovery that birds evolved from small carnivorous dinosaurs of the Late Jurassic was made possible by recently discovered fossils from China, South America, and other countries, as well as by looking at old museum specimens from new perspectives and with new methods. The hunt for the ancestors of living birds began with a specimen of Archaeopteryx, the first known bird, discovered in the early 1860s. Like birds, it had feathers along its arms and tail, but unlike living birds, it also had teeth and a long bony tail. Furthermore, many of the bones in Archaeopteryx's hands, shoulder girdles, pelvis, and feet were distinct, not fused and reduced as they are in living birds. Based on these characteristics, Archaeopteryx was recognized as an intermediate between birds and reptiles; but which reptiles
WHICH TERM BEST SUMMARIZES PROCESS OF SELF FEEDING
Answer:
Photosynthesis!!!!!!!!
Explanation:
I just had this question on my A.P.E.X test
Plz help me well mark brainliest if you are correct!
Answer:
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Explanation:
Answer:
B. A Fiery body of gas that Looks like a light when the Sky Is Dark.
Explanation:
Draw the structures of deoxyribose, guanine, and phosphate and rate their relative solubilities in water (most soluble to least soluble). How are these solubilities consistent with the three-dimensional structure of double-stranded DNA?
Answer:
The solubilities in water of the three molecules from most to least soluble is in the following order: phosphate > deoxyribose > guanine.
Explanation:
The phosphate group is the most water-soluble due to it being very much negatively charged .
The deoxyribose which has several hydroxyl groups, is the next most water-soluble molecule.
The guanine molecule is hydrophobic, therefore, it is the least soluble in water.
A DNA molecule is composed of the three molecules: deoxyribose sugar, a phosphate group and a nitrogenous base which could either be a purine or a pyrimidine.
The three dimensional structure of DNA is such that the the phosphate groups and deodyribose sugars form the backbone of the structure on the outside of the DNA double helix where they are exposed to the aqueous environment of the nucleus. On the other hand, the hydrophobic nitrogeneous bases are located in the interior of the double helix where they are excluded from excludedthe aqueous environment of the nuclues. This structural arrangement is in accordance with the solubility of the molecules where the water-soluble phosphates and sugars are exposed to water while the water-insoluble bases are away from water.
help help
How long does it take bacteria to become 1 million bacteria (IN MINUTES)
What is gene flow?
Helppppppppppp
Answer:
A the movement or organisms or their genetic material from one population to another
Answer: number 1
Explanation:
In population genetics, gene flow is the transfer of genetic material from one population to another. If the rate of gene flow is high enough, then two populations will have equivalent allele frequencies and therefore can be considered a single effective population.
What happens when a continental plate and a oceanic plate converge and why? Choose one.
(no links please)
a. The continental plate goes under the oceanic plate (subducts) because the continental plate is
thinner than the oceanic plate.
b. The continental plate subducts under the oceanic plate because the continental plate is thinner
than the oceanic plate.
c. The oceanic plate subducts under the continental plate because the oceanic plate is lighter than the continental plate.
d. None of these
e. The oceanic plate subducts under the continental plate because though the oceanic plate is
thinner than the continental plate, it is more dense.
pleaseee helpppp
will mark brainliest :)
Answer: i think it's e
Explanation: When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser.
How does the strength of a sound field 1 meter from its source compare with its strength 4 meters away?
which of the following human cells has a ploidy number of n?
A uterine
B sperm
C bladder
D lung
Answer:
Sperm
Explanation:
Human diploid cells have 46 chromosomes (the somatic number, 2n) and human haploid gametes (egg and sperm) have 23 chromosomes (n).
How will your community handle solid wastes that can be recycled?
Answer:
making it into fertilizer
Explanation:
. Help please!! A student is modeling the steps in the complete metamorphosis of an insect. Which step should he draw
after the adult phase? No links!!!
A. egg
B. pupa
C. larva
D. butterfly
Answer:
Egg
Explanation:
After the adult phase the cycle should start over again
What does the word Immigrant mean to you?
Answer:
someone who moved from a different country looking for job opportunities
Explanation:
Answer:a person who comes to a country to take up permanent residence
