Let's take the example of a Giraffe. Its major physiological feature is the neck. And the environmental challenge was the height of the leaves.
What do you mean by Environment?Anything which is present around the surrounding of an organism is called its environment. The environment may consist of biotic and abiotic factors.
When the neck of a Giraffe was usually shorter and does not reach up to the height of leaves. Now, Giraffe had to adapt to their environment by increasing their neck length. During the course of time, Giraffe achieved success and reach the height of leaves. Suddenly, this trait got passed into the next generation, and as a result, this Giraffe achieved a long neck.
In the future, it assumes that Giraffe will carry this trait, property, and features if required to adapt to environmental changes in the future as well. But it is only hypothesized.
Therefore, it is clearly understood the process of adaptation in past as well as in the future.
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All species of animal have general features in common. Check all of the features that would apply to animals. Check All That Apply Animal cells possess a cell wall and are quite rigid.Animal cells possess a cell wall and are quite rigid. Most animals have the capacity for active movement.Most animals have the capacity for active movement. Animal zygotes undergo mitotic divisions called cleavage.Animal zygotes undergo mitotic divisions called cleavage. Not all animals are multicellular.Not all animals are multicellular. All animals produce diploid spores.All animals produce diploid spores. All animals are heterotrophs.All animals are heterotrophs.
Answer:
- Most animals have the capacity for active movement
- Animal zygotes undergo mitotic divisions called cleavage
- All animals are heterotrophs
Explanation:
Animals, also known as metazoans, are multicellular eukaryotic organisms from the kingdom Animalia. Animals are a monophyletic group, i.e., all animals are derived from a common ancestor. Animals can be classified into two main groups: 1- invertebrates that don't have a backbone inside their body (e.g., earthworms, octopus, snails, insects, etc) and 2-vertebrates that have a backbone inside their body (e.g., fish, amphibians, reptiles, birds, mammals). Cleavage refers to the division of animal cells in the early embryo. In animals, the zygotic cell divides by mitosis (i.e., cleavage), into smaller cells called blastomeres. Some of the most common characteristics of the animal kingdom are:
- heterotrophy: animals cannot produce their own food and obtain energy by feeding organic material present in other organisms
- generally reproduce through sexual reproduction
- animal's cells do not have cell walls
- they are able to move in almost one stage of their lives
- they can respond to external stimuli by nerve cells and/or muscle cells
What functions does the red blood cell do for a human?
Answer: Red blood cells carry oxygen from our lungs to the rest of our bodies. Then they make the return trip, taking carbon dioxide back to our lungs to be exhaled. The function of the red cell and its hemoglobin is to carry oxygen from the lungs or gills to all the body tissues and to carry carbon dioxide, a waste product of metabolism, to the lungs, where it is excreted.
Explanation:
write a paragraph that explains what the causes of Long term climate cycles are. Give examples
Explanation:
Scientists have predicted that long-term effects of climate change will include a decrease in sea ice and an increase in permafrost thawing, an increase in heat waves and heavy precipitation, and decreased water resources in semi-arid regions.
Below are some of the regional impacts of global change forecast by the Intergovernmental Panel on Climate Change:
North America: Decreasing snowpack in the western mountains; 5-20 percent increase in yields of rain-fed agriculture in some regions; increased frequency, intensity and duration of heat waves in cities that currently experience them.
Latin America: Gradual replacement of tropical forest by savannah in eastern Amazonia; risk of significant biodiversity loss through species extinction in many tropical areas; significant changes in water availability for human consumption, agriculture and energy generation.
Europe: Increased risk of inland flash floods; more frequent coastal flooding and increased erosion from storms and sea level rise; glacial retreat in mountainous areas; reduced snow cover and winter tourism; extensive species losses; reductions of crop productivity in southern Europe.
Africa: By 2020, between 75 and 250 million people are projected to be exposed to increased water stress; yields from rain-fed agriculture could be reduced by up to 50 percent in some regions by 2020; agricultural production, including access to food, may be severely compromised.
Asia: Freshwater availability projected to decrease in Central, South, East and Southeast Asia by the 2050s; coastal areas will be at risk due to increased flooding; death rate from disease associated with floods and droughts expected to rise in some regions
barometers modified to measure the height above the sea level are called
Answer:
When a barometer is supplied with a nonlinear calibration so as to indicate altitude, the instrument is called a pressure altimeter or barometric altimete
Explanation:
Altimeters
An altimeter is a device that measures altitude, the distance of a point above sea level. Altimeters are important navigation instruments for aircraft and spacecraft pilots who monitor their height above the Earth's surface.
describe TWO criteria that are required in order to be considered for
bachelor degree studies.
Answer:The two important criteria that are required to be considered for bachelor's degree is completion of higher studies and scoring high percentage of marks in higher studies.
Explanation:
The two criteria that are required in order to be considered for bachelor degree studies include:
Completion of higher studiesScoring of high marks in certain courses.What is a Degree?This is usually awarded by colleges and universities upon completion of a course of study
The most appropriate criteria to be considered for bachelor degree studies are mentioned above.
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Which is NOT a benefit of xenophyophores in a habitat?
1 They maintain benthic biodiversity.
2 They increase populations of isopods, mollusks, and crustaceans.
3 They churn up sediments that build up on the ocean floor.
4 They convert salt and iron into energy and nutrients.
The correct answer is 4. They convert salt and iron into energy and nutrients.
Explanation
Xenophiophores are large single-celled organisms generally found deep in the deep sea. They are characterized by being very delicate organisms, which makes it difficult for scientists who intend to study them since they are easily damaged by manipulation. However, in the studies that have been carried out on these organisms, it has been found that they are irreplaceable agents in the sediment deposition process and the maintenance of the biological diversity of benthic organisms. Also, it has been shown that in the areas where these organisms are found there are three to four times more benthic crustaceans, echinoderms, and mollusks than the equivalent areas not inhabited by these organisms. On the other hand, none of these studies has proven that They convert salt and iron into energy and nutrients. Therefore, the correct answer is 4. They convert salt and iron into energy and nutrients.
A young man claiming to be the son of Howard Hughes is suing the estate for his inheritance. Hughes (multimillionaire, inventor, businessman, and subject of the 2004 film, Aviator), did not leave behind any heirs upon his death. The judge overseeing this case, orders blood tests. Howard Hughes has blood type AB, the mother of the young man has type A blood, and the young man had type O. If you were the judge in this case, what would be your ruling?
Answer:
The young man is not the son of Howard Hughes.
Explanation:
The human blood system works on codominance type of inheritance in the case of blood group A and blood group B present together however, in blood group O it still follows the law of dominance as antigen O is recessive in present of any other antigen.
We know Howard Hughes had blood type AB
So, the genotype would be - IAIB
We also know that the mother of the young man claiming has a blood type A
So, possible genotypes would be - IAIA (case 1) or IAi (case 2)
For case 1,
The possible genotypes for the man claiming would be
IAIB X IAIA --------> IA IA, and IAIB.
According to case 1, he is not the son of Howard.
For case 2,
The possible genotypes for the man claiming would be
IAIB. X I A i ---------> IA IA , IAIB I A i and IB i
Both cases show that the man claiming is not the son of Howard as the blood group of the man is O and the genotype should be ii.
The most common form of hemophilia is a defect in blood clotting factor VIII, which is caused by a mutant form of a gene on the X chromosome. Boys who inherit that mutation from their mother suffer from uncontrolled bleeding. Girls carrying one copy of this mutation have near normal blood clotting. Uncommonly, a girl is born with hemophilia even though both parents have normal phenotypes. Which of the statements might explain hemophilia in a girl born to parents with normal blood clotting phenotypes?
Answer:
Nondisjunction during sperm arrangement and formation brought about her getting no sex-chromosome from her dad and an X chromosome from her mom, she is XO.
Explanation:
Nondisjunction during sperm arrangement and formation brought about her getting no sex-chromosome from her dad and an X chromosome from her mom; she is XO.
It is on the grounds that her mother happens to be a carrier of hemophilia and she transferred that mutant allele to her daughter and due to the fact that she did not get any sex-chromosome from her dad.
However, such mutant (X) communicates and expresses itself and she is hemophilic.
This (X) is not express in her mother because she possesses a recessive trait; as such it appears in the hom8zygous state.
40. The state of matter with definite shape and definite volume
A. Gas
B. Liquid
C. Solid
Answer:
C. Solid
Explanation:
Gas has no definite shape or volume, and liquid has no definite shape. Hope this helps, best of luck!
Answer:
solid
Explanation:
liquid flow everywhere
gas blow in water
but solid is in fix shape
Help please | No links!!!
List as many examples of seasonal changes of plants and animals that you can.
Answer:
spring trees bloom flowers
summer trees grow leaves
fall tree lose leaves
winter tree hibernate or something
spring squirrels come out of hibernating
summer squirrels gather food
fall squirrels still gather food and prepare to hibernate
winter squirrels hibernate
Explanation:
In humans, dimples are dominant to no dimples and freckles are dominant to no freckles. A man with
no dimples or freckles mates with a woman who is heterozygous for both traits. Determine the
percentage of their offspring that will have the same genotype as their mother. Also determine the
percentage of their offspring that will have the same phenotype as their father.
Answer:
I'm being honest the answer are in the pdf pls don't report me its not a scam
Explanation:
The correct answer is 25% of their offspring will have the same genotype as their mother.
25% of their offspring will have the same phenotype as their father.
What is genotype?The term genotype refers to an organism's whole complement of genes; in other words, it describes its genetic composition. In a more restricted meaning, the phrase can refer to the alleles, or alternative forms of a gene, that an organism carries.
what is phenotype?A phenotype is just an observable trait. Pheno means observe and is derived from the same root as "phenomenon." As a result, it's an observable sort of organism that can refer to anything from a common characteristic like height or hair color to the presence or absence of a disease.
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A mountain range divides a freshwater snail species into two large isolated populations. Erosion eventually lowers the range and brings the two populations together again, but when they mate, the resulting hybrids all produce sterile young. This scenario is an example of:
Answer:
allopatric speciation.
Explanation:
Reproduction can be defined as a biological process which typically involves living organisms producing an offspring.
Basically, there are two (2) methods of reproduction and these are;
I. Sexual reproduction.
II. Asexual reproduction.
In this scenario, a freshwater snail species is divided into two (2) large isolated populations by a mountain range. This range is then lowered by an erosion and as such bringing the two populations of the freshwater snail species together again.
However, when the two snail species mate, the resulting hybrids all produce sterile young snails. Thus, this scenario is an example of allopatric speciation.
Allopatric speciation is also referred to as geographical speciation and it can be defined as a process in which two (2) biological populations of the same species become isolated from each other by geographical barriers or changes such as mountain range, emigration, etc. Thus, allopatric speciation is dominant with living organisms that reproduces sexually and it causes the isolated species to evolve newly with distinctive traits.
How does absorbing carbon dioxide gas from
the atmosphere most directly affect oceans?
A. It lowers the pH of the water.
B. It raises the temperature of the water.
C. It reduces the volume of water in the oceans
D. It increases the salt concentration of the
water.
Answer:
A. It lowers the pH of the water.
Explanation:
Carbon dioxide is a gaseous molecule found to be naturally present in air. It has the chemical formula, CO2. Carbon dioxide readily reacts with water to form carbonic acid (H2CO3).
This means that when the oceans absorb CO2 from the atmosphere, it reacts with the water and forms carbonic acid, which lowers the pH of the water body.
CO2 + H2O → H2CO3
Keystone predators often help maintain ecological stability in a community if they
A
competitively exclude other predators.
B
prey only on the least abundant species in the community.
с
prey on the community's dominant species.
D
allow immigration of other predators.
2021
TIL
Historically, the use of wells appears in the
A) Old Stone Age
B) New Stone Age
C) Bronze Age
D) Iron Age
E) Copper Age
Answer:
A) Old Stone Age
Explanation:
What does DNA contain?
--------------------------------------------------------------------------------
the ability to translate RNA code
the chromosomes that build proteins
the coded blueprint for life
the factors for heredity called alleles
Answer and Explanation:
I believe the answer is C. The coded blueprint for life...
Let me know if I'm wrong..
Which of the following is a large glycoprotein?
A. Antidiuretic hormone
B. Oxytocin
C. Follicle-stimulating hormone
D. Epinephrine
Answer:
C
follicle-stimulating hormone is a large glycoprotein
Describe the differences between the forces of magnetism and gravity.
Answer:
Gravity is not the same thing as magnetism. They are in fact entirely distinct forces. Gravity is a force that works with weight between two objects. Magnetism can pull or separate the two objects, depending on how the magnets point.
Explanation:
Determining a common ancestor between two species provides information about
A.
the evolutionary past
B.
relatedness
C.
rate of reproduction
D.
Both A and B
Answer:
the correct answer is D) both A&B
Explanation:
Chloe is training for her first half-marathon, which requires her to run 21.1 km. Before she runs, she carefully chooses the foods that will give her the energy her body requires for the race. She stands still at the starting line, then she starts running, her body warming up as she runs. Which three energy transformations take place in this example?
A. chemical energy to kinetic energy
B. chemical energy to thermal energy
C. mechanical energy to chemical energy
D. potential energy to kinetic energy
Answer:
A. chemical energy to kinetic energy
B. chemical energy to thermal energy
D. potential energy to kinetic energy
Explanation:
Food produces chemical energy, standing still, potential energy, running kinetic energy and her body warming up is thermal energy(heat energy)
Which one ??????????????
Answer:
It allows genetic variation
Explanation:
multiple choice question
Lasers can be used to guide wood through table saws.
True
False
The activity of the pyruvate dehydrogenase complex is also controlled by phosphorylation. Pyruvate dehydrogenase kinase (PDH kinase) catalyzes the phosphorylation of a specific Ser residue on the E1 subunit of the enzyme, rendering it inactive. Pyruvate dehydrogenase phosphatase (PDH phosphatase) reverses the inhibition by catalyzing the removal of this phosphate group. The PDH kinase is highly regulated and its activity is influenced by various cellular metabolites. Indicate whether the following would activate or inhibit PDH kinase:
Inhibit or activate PDK?
NAD+
NADH
coenzyme A
acetyl-CoA
ADP
Answer:
Following are the response to the given question:
Explanation:
Active PDK:
Acetyl CoA
NADH
Inhibit PDK:
NAD+
coenzyme A
ADP
This same PDK is enabled and inhibits thru all the ADP, NAD+ and key enzyme Thorough assessment of Acetyl coA and NADP. In PDC, the methylation of its Ser residues, which have been catalyzed by PDK, inhibits the pyruvate dehydrogenase.
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
i think its A im sorry if it isnt but im pretty sure its A but it might be wrong
Explanation:
the direct energy source of cellular respiration is-----------
Answer:
glucose is the direct energy source of cellular respiration
hope this helps you☺️☺️
8 In sexual reproduction, an offspring is produced with genes from both parents. When the offspring has a new genetic variation that it got from neither of its parents, it is called. A. an automotive B. a mutation C. a recessive gene D. a phenotype
Answer: B
Explanation:
Mutations are changes in the DNA sequence that can lead to genetic diversity. Mutations are usually errors in DNA replication or mitosis.
. Why do some people require bifocals (
Answer:
Bifocal lenses are used for people who are both nearsighted and farsighted. It is common for people who are over the age of 40 to begin to notice a change in their vision and require the need for bifocals. As we age, our eyes begin to have trouble focusing on objects at different distances away.
Explanation:
Answer:
People have to wear bifocals most commonly because of a condition called presbyopia. This condition occurs naturally. It causes difficulties in the eye’s focusing abilities. Bifocals work to help the eyes focus more clearly, which is why people have to get them.
Explanation:
The forces from below the surface that change the surface of the earth are
Erosion
Earthquakes
Volcanoes
Living things
Weathering
Faulting
Folding
Glaciers
Answer:
That would be folding which causes earthquakes.
Explanation:
HOW, down to an atomic level is the energy in lighting converted from one form to another.
Give 3-5 sentences
PLEASE HURRY
Answer:
When properly stimulated, electrons in these materials move from a lower level of energy up to a higher level of energy and occupy a different orbital. Then, at some point, these higher energy electrons give up their "extra" energy in the form of a photon of light, and fall back down to their original energy level.
Explanation:
sorry but I cannot have sentences but all yours