Answer:
A hair follicle anchors each hair into the skin. The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft. Blood vessels nourish the cells in the hair bulb, and deliver hormones that modify hair growth and structure at different times of life.
Explanation:
All of the traits below are characteristic of the class Mammalia except which?
A.Four-chambered heart
B. Milk production for young
C.Oviparous birth of young
D. Hair covering the body
All of the traits below are characteristic of the class Mammalia except C.Oviparous birth of young as they do not lay eggs.
What are the Oviparous ?Animals that reproduce via way of means of laying eggs are referred to as oviparous animals. In those animals, the manner of each fertilization and embryo improvement does now no longer arise within the mother. Birds and frogs are examples of oviparous animals.
Most mammals are viviparous, giving beginning to stay young. However, the 5 species of monotreme, the platypuses and the echidnas lay egg.
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Answer:
C. Oviparous birth of young
Explanation:
The vast majority of mammals are viviparous, and only a couple are oviparous.
The Northern and Southern Hemispheres of Earth experience four seasons during the
year. What is the main reason for the change in seasons?
the rotation of the Earth on its axis
Answer:
Earth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. And when the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.
A student is creating a T chart of prokaryotic vs eukaryotic cells
T chart of prokaryotic cell vs eukaryotic cell.
Prokaryotic cell size is generally small ( 0.5-10um ).Nuclear region is not surrounded by nuclear membrane. Membrane bound organelles such as mitochondria, Lysosomes, endoplasmic reticulum are absent nucleus is absent. cell division is by fission or budding ( but no mitosis ).they always have single chromosome. DNA is circular and lies free in the cytoplasm. DNA is nàked( not associated with proteins or RNA to form chromosome) eg - found in PPLO bacteria and blue green algae. Eukaryotic cell they are larget in size (1-100um)Nuclear region is surrounded by a nuclear membrane. all the membrane bound organelles are present. nucleus present. cell diviis mitotic or meiotic.they have more than one chromosome. DNA is linear and contained in a nucleus. DNA is associated with proteins and RNA to form chromosomes. e.g found in plants and animals other than PPLO and blue green algae.Cytokinesis is when the cell
separates into two identical
daughter cells. Cytokinesis is
which phase of cell division?
Answer:
D. Last
Explanation: Cytokinesis occurs when the cytoplasm split and the 2 daughter cells are fully separated.
The Earth's atmosphere is unique among all of the planets in the solar system. Describe 3 characteristics of the Earth's atmosphere that allows for life on Earth as we know it.
Answer:
oxygen, carbon dioxide and magnetic field
Integrating sensory information and neural functions is a function of the __________. a. forebrain b. cerebrum c. thalamus d. cerebellum please select the best answer from the choices provided a b c d
Integrating sensory information and neural functions is a function of the cerebrum (i.e., the brain).
What is the cerebrum?The cerebrum or brain is the most important organ associated with functions of the nervous system.
The cerebrum is an organ that coordinates complex functions such as speech, movements, etc.In conclusion, integrating sensory information and neural functions is a function of the cerebrum (i.e., the brain).
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What are micropipettes, and how are they used?
Answer:
It is a common yet an essential paboratory instrument used to accurately and precisely transfer volumes of liquid in the microliter range
0)“If Jupiter was not there, there could be more terrestrial planets”. Explain how
what would happen if there was no Jupiter?
There would be minor changes in the planets' orbits about the Sun, but very little else. However, Jupiter does a great job of shepherding and absorbing small objects in the Solar System. With Jupiter gone, the main effect on Earth would be an increase in the rate of impacts from asteroids and other space flotsam.
In the gene pool of a given population of rabbits, 80% of the gametes carry the dominant allele for gray coat. what percentage of the population is heterozygous gray
Answer:
prolly all but then again there is not enough information to actually answer this question
Explanation:
if glucose levels get too high in our body, what diseases may occur because of it?
Answer:
Hyperglycemia or high blood glucose
Explanation:
Hyperglycemia or high blood glucose occurs when there is too much sugar in the blood. This happens when your body has too little insulin (the hormone that transports glucose into the blood), or if your body can't use insulin properly. The condition is most often connected with diabetes.
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Traits are passed from parents to offspring. These traits are determined by
(1) chromosomes, located on genes, found in the nucleus
(2) genes, located on chromosomes, found in the nucleus
(3) chromosomes, located on genes, found in the ribosomes
(4) genes, located on chromosomes, found in the ribosomes
Answer:
The traits that are transferred from the parents to the offspring during reproduction are determined by genes, located on chromosomes, found in the nucleus.
Explanation:
During reproduction, there is a fusion of;
male gamete
female gamete
This leads to the formation of offspring. There is a transfer of traits from the parents to the offspring.
Hence, the traits that are transferred from the parents to the offspring during reproduction are determined by genes, located on chromosomes, found in the nucleus.
Answer:
(2) genes, located on chromosomes, found in the nucleus
Explanation:
Traits are determined by genes which are located on chromosomes. Chromosomes, on the other hand, are located in the nucleus.
What are two global issues associated with using fossil fuels for energy?(1 point)
fossil fuels are nonrenewable, so humans will run out of them eventually. burning fossil fuels also only damages nearby ecosystems.
fossil fuels are nonrenewable, so humans will run out of them eventually. burning fossil fuels also contributes to global climate change by releasing carbon dioxide into the atmosphere.
fossil fuels are nonrenewable, so humans must use less to allow them to be replenished naturally. burning fossil fuels also contributes to global climate change by releasing carbon dioxide into the atmosphere.
fossil fuels are nonrenewable, so humans must use less to allow them to be replenished naturally. burning fossil fuels also only damages nearby ecosystems.
Answer: b. fossil fuels are nonrenewable, so humans will run out of them eventually. burning fossil fuels also contributes to global climate change by releasing carbon dioxide into the atmosphere.
Explanation:
Fossil fuels are limited and we will run out of them eventually. They cannot be replenished in a single human's lifespan. Fossil fuels contribute to the destruction of ecosystems, but not only that. They release carbon dioxide into the atmosphere that warms the Earth. Therefore, anything other than B. would be incorrect.
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7th grade!
Describe the structure and function of neurons. In your response, discuss the three types of neurons cells.
Answer:
Sensory neurons, Motor neurons, and Interneurons
Explanation:
Sensory neurons get activated and stimuli from their environment
Motor Neurons Transmit from the brain and spinal cords where they then go to the muscles, glands and many organs in the body
interneurons transmit impluses between the sensory and motor neurons
Gut bacteria found in the human stomach (very low pH) would be classified into which kingdom?
plantae
archaebacteria
fungi
protista
animalia
eubacteria
The 3rd one - fungi, double check
What do the digestive respiratory and circulatory have in common.
Answer: They both share the pharynx
Explanation: The Pharynx is a region of the mouth and part of the upper throat where air from the respiratory system and solid food and liquids can mix
Which observations describe both images? Select all the correct answers. The oil mixes with water. The oil floats on the surface of the water. The oil sinks to the bottom of the water. The oil spreads to cover the water. The oil stays in one spot.
The correct answers are, the oil floats on the surface of the water and it spreads to cover the water surface.
Properties of oil
Oil is a liquid substance that can be described with the following properties;
Oil is less dense than water, which means it will float in waterOil has high viscosity, and with the help of surface tension of water it will spread in water.Thus, the correct answers are, the oil floats on the surface of the water and it spreads to cover the water surface.
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Be specific about how invasive species impacts the environment here in Hawaii.
What will happen in the future if this issue is not addressed? Why does this issue need to be addressed?
Answer:
Terrestrially, invasive species are proving to be a major difficulty in Hawaii because the islands lack many natural predators of invasive animals. Invasive predators often move to the top of the food chain and disrupt prey populations, particularly small mammals, birds, insects, and plants. Invasive species are capable of causing extinctions of native plants and animals, reducing biodiversity, competing with native organisms for limited resources, and altering habitats. This can result in huge economic impacts and fundamental disruptions of coastal and Great Lakes ecosystems.
Birds are uniquely classified from other organisms because they all(1 point) eat seeds. eat seeds. have feathers. have feathers. lay eggs. lay eggs. have wings.
According to the research, birds are uniquely classified from other organisms because they all have feathers.
What are birds?It is an oviparous and vertebrate animal whose body is protected by plumage and which has a pair of wings generally suitable for flight.
Feathers are characteristics of the bird class thanks to these they can camouflage, regulate body temperature and identify and differentiate themselves from other groups of animals since they may have wings, beaks and legs, but none have feathers.
Therefore, we can conclude that according to the context, birds are uniquely classified from other organisms because they all have feathers.
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How is it possible for a female emoji to have red coloring? Explain your answer using evidence from the pedigree above to support your claim.
A body of fresh water is shown below.
B
Which point in this body of water is most likely to be in the photic zone?
A. Point D
B. Point B
C. Point A
D. Point C
Answer:
Point B
Explanation:
Point B is getting the most light and is closet to the surface
Point B is getting the most light and is closet to the surface.
What is Photic zone?The daily cycle of light and dark in the photic zone of the world's oceans is maybe the most potent environmental signal accessible. Russell's suggestion that zooplankton resided in depths with the best light intensity was one of the early reports to propose that light had a major role in vertical migration.
He went on to say that as animals strayed from this zone of ideal light intensity, physiological responses governed by photochemical systems prompted them to come back.
Subsequent reviewers came to the conclusion that there was a lot of (although speculative) evidence that light had a substantial role in controlling fish's vertical migration.
Therefore, Point B is getting the most light and is closet to the surface.
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6. (a) What two major changes have occurred in the North Fork Toutle River?
A massive landslide Mud flows in the Toutle river.
How changes have occurred in the North Fork Toutle River?There had been many earthquakes in the area prior to eruption but this happen to be a massive land slide because a moving magma have over steepened the mountain slopes.
This geologic process uses gravity to cause rock, soil, artificial fill or a combination of the three to move down a slope. Slow weathering of rocks as well as soil eruption and volcanic activity also causes landslides
Thus, massive landslide Mud flows in the Toutle river.
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DNA from a wolf is compared to DNA from a maple tree. Both will contain the
a. sugar deoxyribose and the base guanine
b. sugar deoxyribose and the base uracil
c. sugar ribose and the base guanine
d. sugar ribose and the base uracil
The DNA of both wolf and a maple tree contains the sugar deoxyribose and the base guanine.
What do you mean by DNA?DNA stands for deoxyribose nucleic acid. It is considered one of the most important genetic materials which are present in most organisms.
DNA possesses the sugar deoxyribose, while RNA contains the sugar ribose. As a wolf and a maple tree both possess genetic material DNA, the sugar found in both is deoxyribose.
DNA contains nitrogenous bases such as Adenine, Thymine, Guanine, and Cytosine, while RNA contains Uracil in place of thymine.
Therefore, the DNA of both wolf and a maple tree contains the sugar deoxyribose and the base guanine.
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how does the structure of xylem relate to its function
Answer:
They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.
Because of temperature increases caused by global warming, identify the pattern of shift many North American animal and insect species are experiencing.
A.
ranges and niches are moving farther West
B.
ranges and niches are moving farther East
C.
ranges and niches are moving farther North
D.
ranges and niches are moving in all
Answer: C. Ranges and niches are moving farther North
Explanation:
Animals are moving north toward the North Pole to escape the heat. Towards the poles, the temperatures get colder. Because of global warming, the temperature zones move out towards the poles.
The diagram below best defends which one of the following claims?
A.Genetic variation among offspring may result from the exchange of genetic material between homologous chromosomes.
B.Genetic variation among offspring may result from the duplication of homologous chromosomes.
C. Genetic variation among offspring may result from the deletion of homologous chromosomes.
D.Genetic variation among offspring may result from the mutation of homologous chromosomes.
Answer:
The answer is A
Explanation:
there isn't much to explain
The chickenpox virus can remain latent in host cells by integrating its DNA into the host cell genome. This virus uses the ______ cycle as its main life cycle pathway.
The chickenpox virus can remain latent in host cells by integrating its DNA into the host cell genome. This virus uses the genoma replication cycle as its main life cycle pathway.
How does the virus replication process take place?Viral replication refers to the process by which a virus reproduces within a living organism. This usually involves turning infected cells into virus factories, which make copies of the virus's genetic code and expel them to spread into the host's body.
Upon replication, viruses produce new copies of themselves within infected cells.
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This plant structure is responsible for producing leaves, transporting water and nutrients, and support the plant.
A) Roots
B) Seeds
C) Flowers
D) Stems
Answer:
D) Stems
Explanation:
Stems are a part of a plant that are responsible for various things. Their main responsibility is to support the plant, this is through holding up the leaves, flower, and buds. Stems also take nutrients and water from the roots in the ground and transport that up the stem and into the other parts of the plant. Lastly, leaves grow out of the stem, so it is responsible for that as well.
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Average soil contains about what
percentage of mineral deposits?
A. 5%
B. 45%
C. 90%
Answer: It would be B. 45%
Explain how cancer cells grow.
Answer:
Gene mutations in cancer cells interfere with the normal activity within a cell.This can cause it to grow out of control and/or not die when it should. Cancerous cells can continue to grow because they behave differently than normal cells do. Cancer cells differ from regular cells in many ways,one of their more apparent traits is that they divide quickly with no control over them.The amino acid glutamine is one of the many key factors to helping the growth of cancer cells. Like all cells, cancer cells need nutrients to grow,sugar is one important fuel for it's development, but is far from the only factor.
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Vector contact involves contact with __________. a. an infected surface b. contaminated water c. an infected organism d. a carrier organism please select the best answer from the choices provided. a b c d
Vector contact involves contact with an infected organism. Details about vectors can be found below.
What is a vector?A vector is a carrier of a disease-causing agent or pathogen.
This means that a vector must come in contact with an infected organism to carry the disease-causing organism.
An example is the case of mosquitoes, which carries plasmodium pathogen that causes malaria when it feeds on an infected organism.
Therefore, vector contact involves contact with an infected organism.
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