Answer: c
Explanation:
Meiosis and fertilization, two processes are responsible for the passage of hereditary information from generation to generation in mammals, birds, reptiles, fish and other animals.
What is meiosis and why is it important?Meiosis occurs in chromosomes which allows the production of haploid germ cells necessary for seˣual reproduction. Meiosis is furthermore important for its role in enabling genetic diversity and facilitating the repair of genetic defects through recombination.
Fertilization restores the diploid number of chromosomes, that is 46 in human being. It provides stimulus for the ovum to complete its maturation.
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Vascular resistance is due to friction between blood and the walls of the blood vessel. Which of the following causes low vascular resistance?
obesity
dehydration
high blood pressure
cholesterol levels within normal range
Answer:
Cholesterol levels within normal range
Explanation:
Vascular resistance is due to friction between the blood and the walls of the blood vessel, and cholesterol levels within the normal range can cause low vascular resistance, which is the last option.
What is vascular resistance?Vascular resistance is the resistance to blood flow in the blood vessels, which is determined by the diameter of the blood vessels, blood viscosity, and the length of the blood vessels, so when blood flows through the blood vessels, it experiences frictional forces due to the interaction between the blood and the walls of the blood vessels, obesity, dehydration, and high blood pressure can all contribute to increased vascular resistance.
Hence, the correct answer is that cholesterol levels within the normal range can cause low vascular resistance, which is the last option.
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7. About how many straight- line miles separate Brasília from São Paulo?
Answer:
542.2 miles
Explanation:
The total straight line distance between Brasilia and Sao Paulo is 872 KM (kilometers) and 600 meters. The miles based distance from Brasilia to Sao Paulo is 542.2 miles.
Clouds form when water vapor _________.
A. evaporates
B. condenses
Answer:
B. condenses
Explanation:
Clouds form when water vapor condenses.
According to what we know about the importance of biodiversity and ecosystem services, which of the following statements best describes how humans should interact with tropical rainforest? Select the one answer that most accurately answers the question. View Available Hint(s) Select the one answer that most accurately answers the question. Humans can clear the rain forests and rely on the future secondary growth forests while disregarding the inhabitants. Humans can clear the rain forests and rely on the future secondary growth forests, as long as they make efforts to conserve the forests’ inhabitants. Humans should leave primary growth forests and their residents intact, and ensure that secondary growth forests have a chance to regrow. Humans should leave the plants within primary growth forests intact, but can hunt the residents for fo
Answer:
The correct answer is - Humans should leave primary growth forests and their residents intact, and ensure that secondary growth forests have a chance to regrow.
Explanation:
Humans should not clear the forest at any cost as cutting the forest affect the flora and fauna of the forest and residents of the forest lose their habitat. The clearing or affecting the habitat leads to an increase in the global warming as there is increase in the carbon dioxide gas.
Humans need to intact the primary growth and flora and fauna of the ecosystem. It also need to be ensure that forests have cahnce to regrow. It should be also put in consideration that inhabitants should be protected.
Punnett's Squares
These show the 2 alleles of each parent plant crossed with each
other and the resulting 4 possible offspring with T= tall, = short.
TT = dominant tall, 17 = recessive short, Tt = mixed hybrid
TT = dominant tall (genotype tall, phenotype tall)
Tt = mixed hybrid (genotype hybrid, phenotype tall)
tt = recessive short (genotype short, phenotype short)
Using the Punnett's Squares below, name the offspring of all possible parent combinations
Answer:
All answers are in the image
1 . What happens in the population if the mutation phenotype is helpful
2. Why does that happen for that population that has a helpful phenotype?
3. How does this mutation continue to exist in a population?
Answer:
1. The population will increase as they're better adapted to their environment and have a higher survival rate due to this helpful phenotype.
2. This happens to the population because this helpful phenotype might lead to less exposure to predation in which leads to a better survival fitness for the organism.
3. This mutation continues to exist as the organisms continue to successfully reproduce into the population due to being able to survive for longer.
The universe__.
-Is expanding
-does not include empty space
-was created five million years ago
-is approximately six trillion miles wide
Answer:
The universe is expanding. <3
learning task 1: direction: Complete the crossword on species diversity by filling in a word that fits each clue
Answer:
DiversityStabilityBiodiversityCosmopolitanEndemicEcosystemPopulationSpeciesExoticExplanation:
Diversity: Diversity as a term is broad and might be used in many aspects, referring to things variety. Diversity in biological terms refers to the present or the past forms of life inhabiting a natural environment. Stability: Related to the resilience concept. Stability depends on the quantity and magnitude of disturbances affecting an ecosystem. If there are no disturbances, the ecosystem is stable. If there are some or many disturbances of small magnitude, the ecosystem remains relatively stable, with a high resilient capability. But when the ecosystem is affected by frequent and severe disturbances, it loses stability and might be seriously affected.Biodiversity: Defined as the different species living in a certain restricted area. It is the variability of living beings in a natural environment, involving all the species on the planet and their genetic material. This variety includes all plants, animals, fungus, and microorganisms living in a certain place, their genetic variability, and the ecosystems these species conform.Cosmopolitan: Referred to as any taxonomic group that live all around the world. Species might be cosmopolitan, or genera, or classes. Sometimes a superior taxonomic group is cosmopolitan, but the species composing it are not. Endemic: Referred to species or any other taxonomic group restricted to a certain area or region, which provides all the environmental requirements of these organisms. They are usually small groups that might be in danger of extinction due to any alteration that might change their environment. They might also be a new species that did not have enough time to disperse yet.Ecosystem: Ecosystems include all the biotic, physical, and chemical components of nature, continuously interacting and depending on each other. The ecosystem is composed of living and non-living things that interact and depend on each other. These are the biotic and abiotic factors. Population: Groups of individuals from the same species, with similar characteristics, capable of crossing, leaving offspring, and living in the same habitat at the same time.Species: Organisms that are morphologically and genetically similar, that can mate, reproduce and leave fertile offspring to the next generation. Members of populations. Exotic: It refers to new species that establish in a new area far or out of their original distribution range. The dispersion of these species to new areas might be accidental or intentional. Once established, these species might be considered invasive if their reproductive rate increases, if their population over-growth, and there is a negative interaction with native species.Please help. Water Cycle-Escape Room. I’ve put in every answer possible.
Answer:
C = 1
A = 2
E = 5
B = 3
D = 4
Answer:
Explanation:
A. 2
B. 3
C. 1
D. 4
E. 5
Structure of Plant and Animal cell
Answer:
Explanation:
hope it is helpful to you
Just as in humans, systems interact in plants to maintain homeostasis and accomplish the functions of transport, reproduction, and
response. What are some examples of plant processes that involve an interaction between stems, roots, and leaves?
A)
Water is transported up the stem from roots to leaves via the xylem.
B)
Photosynthesis in the leaves requires water to be absorbed by the root
system.
Root growth requires the transport of glucose from the leaves through the
xylem.
D)
Oxygen produced in photosynthesis is transported to the roots where is
can be released into the soil.
E)
Glucose produced in the leaves through photosynthesis is transported
throughout the plant via the phloem.
Answer:
A) Water is transported up the stem from roots to leaves via the xylem.
B) Photosynthesis in the leaves requires water to be absorbed by the root
system.
E) Glucose produced in the leaves through photosynthesis is transported
throughout the plant via the phloem.
Explanation:
Trust me
Have a good day :)
The examples of plant processes that involve an interaction between stems, roots, and leaves is water is transported up the stem from roots to leaves via the xylem. Hence option A, B an E is correct.
What is homeostasis?Homeostasis is defined as any self-regulating mechanism by which biological systems have a tendency to keep their stability while responding to environmental factors that are best for survival. The preservation of essentially constant internal conditions is referred to as homeostasis.
The xylem carries water up the stem from the roots to the leaves. Water must be absorbed by the root system in order for photosynthesis to occur in the leaves. The phloem circulates glucose produced by photosynthesis in the leaves throughout the plant.
Thus, the examples of plant processes that involve an interaction between stems, roots, and leaves is water is transported up the stem from roots to leaves via the xylem. Hence option A, B an E is correct.
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an infectious disease is one that is caused by
pollutants in the environment.
heredity.
pathogens.
hemophilia.
Answer:
pathogens
Explanation:
pathogens may occur in various way e.g spread from a person to person by directly body contact
How could the loss of biodiversity affect humans? It may cause an increase in the human population as competition is reduced. It may lead to the loss of potential medicines, foods, and products. It could lead to a decrease in infectious and other diseases that affect humans. It could cause a decrease in the amount of pollutants on the planet.
Answer:
It may lead to the loss of potential medicines, foods, and products
Explanation:
Biodiversity or biological diversity refers to the variation of life. It is the total number of different variety of species of organisms that exists in the biosphere. Biodiversity is key to the survival of living organism on Earth.
Loss of biodiversity will also lead to the loss of potential medicines, foods, and products, which will greatly affect the human population as we rely on diverse plants and other animals for the above listed substances.
Answer:
B. It may lead to the loss of potential medicines, foods, and products.
Explanation:
Systematists use several fundamental criteria to assign animals to phyla. Check all of the criteria that systematists would use to classify animals under specific phyla. Check All That Apply Feeding behaviorFeeding behavior Adult body symmetryAdult body symmetry Ultimate adult body sizeUltimate adult body size The embryological formation of body cavitiesThe embryological formation of body cavities Biogeographic distributionBiogeographic distribution Gene sequencesGene sequences The number of tissue layersThe number of tissue layers
Answer:
The correct answer is -
Adult body symmetry
The embryological formation of body cavities
Gene sequences
The number of tissue layers
Explanation:
Scientists and taxonomists use different criteria to assign different animals to particular phyla. The various systematic criteria that are used more frequently by systematists are as follows:
1. Adult body symmetry
Body symmetry is one of the criteria used to assign an organism or animal to a particular phylum. There is two symmetry found in animals radial and bilateral. If any plane passes through the middle axis and divides into two identical segments called radial symmetry and Bilateral symmetry is where only a single plane divides the body into halves. However, there are many animals that do not have any symmetry and called assymetrical.
2. The embryological formation of body cavities
Other than layers body cavities also helps in assigning the animals that depend on coelom - body cavity between the body wall and gut wall
Animals could be - coelomate(coelom present), pseudocoelomate -(not lined with mesoderm) and acoelomate(coelom absent).
Gene sequences
Genetic similarities also consider and how close an organism to their organism of the phylum or species.
The number of tissue layers
Different body parts, tissues, muscles, and organs developed from the different cell layers that are formed during embryo, therefore, called embryonic layers.
Animals on the basis of these embryonic layers could be diploblastic or triploblastic. Diploblastic animals form 2 embryonic layers the outer and inner layers called the ectoderm and the endoderm respectively. Triploblastic animals have an extra middle layer known mesoderm.
Please help me.
Somebody help me
Answer:
C
Explanation:
Option C is the answer as Distance reduces with the passage of time.
Please mark as brainliest.
Give some examples of biodiversity you find in your ecosystem.
Most people recognize biodiversity by species—a group of individual living organisms that can interbreed. Examples of species include blue whales, white-tailed deer, white pine trees, sunflowers, and microscopic bacteria that can't even be seen by the naked eye.
Explain why natural selection happens to the individual but adaptation happens to an entire population.
Answer:
Natural selection kills a single individual that was weaker/less suited for the environment than the others. Adaption happens to one individual but through breeding, it becomes a trait for the entire species.
Explanation:
Según la historia evolutiva y sus diferentes saltos, ¿Qué linaje de especies es más antiguo?
A-Reptiles
B-Peces
C-Anfibios
D-Aves
es la A
Hace aproximadamente 250 millones de años ocurrió la extinción masiva del Pérmico-Triásico, un evento en el cual murieron hasta el 96 por ciento de las especies marinas y un porcentaje similar de las terrestres. Cerca de tres millones de años después se produjo la separación, a partir de un ancestro en común, de los linajes que con el tiempo darían origen a las aves y los cocodrilos. El grupo que incluye tanto a cocodrilos como aves se lo denomina Archosauria, que significa ‘reptiles dominantes’.
espero y te ayude
The Mexican horn shark has
fins and spines b/c it feeds on...?
Answer:
Explanation:
They feed on benthic invertebrates, especially sea urchins, crabs and probably abalone, also fishes.
A scientist wants to observe the structure that joins a cell of a neighboring cells. How should the scientist observe the detailed structure of the cell?
Answer:
The images obtained from the electron microscope provides key knowledge regarding the structural basis of cell function and various diseases associated with the cells. Thus, if a scientist desires to see the structure, which binds a cell with the adjacent cells, he or she should use an electron microscope.
Explanation:
please mark this answer as brainliest
Deletion of a DNA base from a gene affects an organism by
Answer: changing the amino acids that come after it and becoming an entirely different protein.
This is a test...Whoever gets it right, will receive 5 stars, and a Thanks. You have 2 minutes.
What is the bite force of a lion, compared to a chihuahua. Your time started when you started reading this.
Answer:
Chihuahua bite force in pounds is 3,900 (psi) pounds per square inch. The bite force of a lion is around 600 PSI. To say that a Chihuahua can bite at more than 6 times the strength of a lion is absolutely ridiculous. At first I thought the opposite.
Answer:
A Chihuahua can bite 6 times PSI a lion can. A lion can bite roughly 650 PSI, the small dog's bite is around 3900.
Explanation:
Asian carp are fish that were imported into the United States to be raised in captivity as a food source. The carp can grow to 100 pounds and feed on many types of small fish. Over time, the carp escaped into the wild and now exist in several river systems. It has no natural predators and outcompetes native species for resources. What will most likely occur as a result?
a.The genetic diversity and the biodiversity of the ecosystem will increase.
b.The genetic diversity and the biodiversity of the ecosystem will decrease.
c.The genetic diversity will increase and the biodiversity of the ecosystem will decrease
d.The genetic diversity will decrease and the biodiversity of the ecosystem will increase
Answer:
Try B
Explanation:
If the fish are the only thing that can survive, There will eventually be no diversity
Answer:
b
Explanation:
guess
since they have no predators
they would increase in population
then
they would take up of resources of others
The question is in the picture above ^
Answer:
concealing coloration, disruptive coloration, disguise
Explanation:
There is no explanation. lel
Any Questions?
Echinoderms are a group of aquatic invertebrates, but they are only found in
water.
The
of an echinoderm is made of hardened plates, which make the animal feel bumpy.
The body of an echinoderm is arranged like the spokes on a wheel. This is called
symmetry.
Answer:
1.salt 2.endoskeleton 3.radial Explanation: just did it
Answer: person above is right :)))
Explanation:
The early ancestors of horses showed the presence of digits on their limbs, while modern horses have hooves. What are likely possible reasons for this change?
Answer:
Natural Selection & Fitness
Explanation:
Horses have evolved to run as fast as possible because they are prey animals.
The hooves give advantages to the predecessors to the modern horse rather than the foot-bearing horses.
Thus when somebody inevitably becomes a snack, the hoof bearing horses lived longer. (Natural selection)
Because they've lived longer, they've had more babies. (Fitness)
Their babies are more likely to pass on the genes they've inherited from their successful parents, and the population of hooved-horses begins to exceed the population of footed-horses.
In this circumstance, all the footed-horses are gone. The population has evolved.
Hope this helps <3
PS: here's a source! https://www.amnh.org/exhibitions/horse/the-evolution-of-horses/on-your-toes#:~:text=Hooves%20and%20long%20legs%20help,many%20horses%20retained%20three%20toes.
The enzyme pepsin is produced in the cells of the stomach but not in the cells of the small intestine. The small intestine produces a different enzyme, trypsin. The reason that the stomach and small intestine produce different enzymes is that the gene that codes for pepsin is A) in the cells of the stomach, but not in the cells of the small intestine B) mutated in the small intestine C) digested by the trypsin in the small intestine D) expressed in the stomach but not expressed in the small intestine
Answer:
D) Expressed in the stomach, but not in the cells of the small intestine
Explanation:
The stomach and small intestine produce different enzymes is gene codes for pepsin is expressed in the stomach but not expressed in small intestine.
What is the function of trypsin?Trypsin is an enzyme that helps us digest protein. In the small intestine, trypsin breaks down proteins, the process of digestion that formed in the stomach.
Is a proteolytic enzyme produced by the pancreas in an inactive form called trypsinogen.
Thus, option "D" is correct as trypsin is expressed in stomach for protein breakdown.
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What is NOT a principle of genetics?
Answer:
What are the options?
Explanation:
Which microscope creates an image of the surface of a sample?
A. SEM B. TEM C. simple D. compound
Answer:
SEM
Explanation:
A scanning electron microscope (SEM) is a type of electron microscope that produces images of a sample by scanning the surface with a focused beam of electrons. The electrons interact with atoms in the sample, producing various signals that contain information about the surface topography and composition of the sample.
In a watershed, why would the water be cleaner near the top where it just rained as oppose to the bottom where the water collected?
Answer:
Because the Pollution and oil from streets and dirt, etc... on land would be washed down to or brought to the low collection point of the watershed therefor the fresh rain would be cleaner than the collection of polluted dirty water
Explanation: