Answer:
Tiltation of the earth
Explanation:
Seasons occur because of the tiltation of the earth and is tilted at an angle of 23.5°. The earth continuously moves around the sun in its elliptical path. Due to this, the sunlight is incident on the earth at different times causing the four types of seasons namely, spring, autumn, winter and summer.
When the earth's imaginary axis of rotation is tilted towards the sun, then the summer season occurs and the opposite side experiences a winter season. During the summer season, the earth is farthest from the sun and this position is called Aphelion whereas during winter the earth and the sun are at its closest position and this is known as the Perihelion.
Since the earth comes closer to the sun in winter, it should experience hotter weather but it experiences cold weather due to its tiltation.
- What is one half of a duplicated chromosome called?
Answer:
It's a Chromatid.
Explanation:
Hope my answer has helped you!
Fungi are classified into how many groups?
A.
1 group
B.
2 groups
C.
3 groups
D.
4 groups
In each transformation of energy , some energy what?
Answer:
An energy transformation is the change of energy from one form to another. Energy transformations occur everywhere every second of the day. There are many different forms of energy such as electrical, thermal, nuclear, mechanical, electromagnetic, sound, and chemical.
Which of the following is most likely the result of an organism having lipids in its body
A) water cannot be absorbed through the surface of a leaf
B)human eats fruits to get a quick source of energy
C) a sheep sleeps for more hours in the winter
D) a warm river is filled with fish and algae
Why do scientists use tables and graphs
Hello There!
Scientists use tables and graphs because it is a visual representation of their results. Also, with tables it keeps their data organized. If a scientist is dealing with certain percents, a pie chart would come in handy.
Which of the following choices is not an
effective solution to the energy waste related
to inefficient lighting?
a. using low-pressure sodium lighting sources
b. pointing lights on billboards and street
signs upward
C. placing light sources on time controls
d. shielding light to direct it downward
Answer: b is ineffective pointing lights on billboards and street signs upward
In which specialized organ of the plant would these cells most likely be found
Answer:
a leaf
Explanation:
These cells will be found in leaf due to the presence of chlorophyll.
What type of cells does leaf have?There are two distinct kinds of photosynthetic parenchyma cells in leaves (palisade and spongy).
Mesophyll Palisade
A particular class of leaf cell created especially for photosynthesis makes up the palisade mesophyll. These chlorophyll-rich cells simply use all of their energy to produce as much sugar as they can. They discharge this sugar into the intracellular region, where it travels to the subsequent class of leaf cell.Spongy Mesophyll
The term "spongy mesophyll" refers to a loose matrix of structural mesophyll cells. Unlike the palisade cells, these cells are not precisely arranged into rows. Instead, they organize into networks and move materials to and from bundles of vascular cells. They can photosynthesize, just as palisade mesophyll leaf cells, but they also serve other purposes.learn more about leaf cells here:
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Consider the following hypothesis:
Soybean plants produce more soybeans when given nitrogen-nich fertilizer.
Which of these should the experiment do in order to best test this
hypothesis?
A. Compare the heights of soybean plants grown with and without
nitrogen-rich fertilizer
B. Compare the masses of soybeans obtained from plants grown
with and without nitrogen-rich fertilizer
C. Measure the amount of nitrogen in the soil before and after
harvesting soybeans
D. Measure the rate of water absorption by soybean plants before
and after receiving fertilizer
Final answer:
To test if nitrogen-rich fertilizer increases soybean production, compare the masses of soybeans from plants grown with the fertilizer to those without it, and control other variables. So the correct option is B.
Explanation:
To best test the hypothesis that soybean plants produce more soybeans when given nitrogen-rich fertilizer, you should compare the masses of soybeans obtained from plants grown with and without nitrogen-rich fertilizer. To conduct the experiment:
Identify two groups of soybean plants, one as the experimental group that will receive the nitrogen-rich fertilizer and one as the control group that will not receive the fertilizer.Ensure that all other variables, such as the amount of water, sunlight, and the type of soil, are kept constant across both groups.At the end of the growing season, harvest the soybeans from both groups and compare the masses of the harvested soybeans to see which group produced more.By measuring the mass of soybeans rather than other factors such as height or water absorption rates, you are directly assessing the outcome relevant to the hypothesis.
what is the name for a substance formed in a chemical reaction
Answer:
Explanation:
The starting substance is a reactant but then the new substance is the product.
Answer:
Product.
Explanation:
A chemical reaction may be defined as the reaction in which a new substance will form in the reaction. The evolution of gas, change in color during the reaction and evolution of heat determines the chemical reaction.
The substance that undergoes the chemical change is known as the reactant. The reactant that finally combines into the new substance known as product. The product is the final substance formed during the chemical reaction.
Thus, the answer is substrate.
What are the functions of bones
Answer:
There's lots
Explanation:
Bones have many functions. They support the body structurally, protect our vital organs, and allow us to move. Also, they provide an environment for bone marrow, where the blood cells are created, and they act as a storage area for minerals, particularly calcium.
Hello There!
I broke this question down into 3 main functions of bones and will briefly explain each one.
"SUPPORT" Almost like the steel framework of a building, bones provide rigidity. This gives the body shape and supports the weight of muscles and organs. Without this, the body would collapse on itself.
"MOVEMENT" There are 3 major systems involved with the mechanics of movement. These are the "Nervous System" "Muscular System" And "Skeletal System" The nervous system send electrical impulses that activate our muscles.
"PROTECTION" Bones protect soft inner body organs from getting damaged. An example is the scull protects the brain from getting damaged.
What is the genotype for the following phenoytpe: a male fruit fly that is heterozygous for eye color and homozygous dominant for wing size.
a
EeWW
b
Eeww
c
EeWw
d
WEwe
Answer:
A
Explanation:
Because for the eye colour it's a heterozygous that means a capital letter then a lower case.
For the wing size it's a homozygous meaning two capital letter.
Hope this helps?
Question 10 (5 points)
Different forms of the same element that have different properties because of different atom arrangements are called_____
allotropes
carbons
silicons
graphites
Answer:
allotropes
Explanation:
As scientists have investigated evolution from a variety of fields, they have found that some of Darwin's orginal ideas were inaccurate or incomplete. T
explanation provided by evolution was updated each time to reflect the new information they found. What does this suggest about the theory of
evolution?
It has become a stronger and clearer theory as new information is collected.
Answer:
b
Explanation:
Answer:
It has become a stronger and clearer theory as new information is collected.
Color blindness is a recessive trait. The gene for color blindness is on the X-
chromosome. The family tree below shows the trait of color blindness. The
only unknown is the mother in the first generation.
TO
What must be true about the mother?
O
A. She has at least one recessive color blindness allele.
O
B. She only has one X chromosome.
O
C. She is color-blind,
O
D. She has two recessive color blindness alleles.
The statement 'she has at least one recessive color blindness allele' must be TRUE about the mother (Option A).
What is chromosome X inheritance?Chromosome X is a special type of chromosome whose inheritance pattern is different from Mendelian inheritance.
Males receive only one X chromosome, whereas females receive two X chromosomes.A carrier is an individual who inherits one defective allele (in this case, the color-blindness allele).In conclusion, the statement 'she has at least one recessive color blindness allele' must be TRUE about the mother (Option A).
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In order for you to hold your breath, your nervous system must send messages to your
A. Respiratory System
B. Digestive System
C. Heart in your cardiovascular System
D. check in your muscular System
Answer:
A. Respiratory System
Explanation:
Answer:
your answer is A!
Explanation:
Which organisms are likely to be found in level 4 of diagram?
A. Lion
B. Grass
C. Shark.
D. Frog
E. Mouse
Answer:
A. lion C. shark
Explanation:
Lion and shark are the organisms likely to be found in level 4 of diagram.
TROPHIC LEVEL:
Living organisms in their natural environment obtain food or energy source by feeding on one another. The linear feeding relationship between organisms is called food chain. In a food chain, the different levels attained by organisms involved in the food chain is called trophic level. The first trophic level is assumed by producers followed by consumers. The tertiary consumers assume the last trophic level of a food chain, which is represented by level 4 in the diagram above. Lions and sharks are good examples of tertiary consumers. Therefore, Lion and shark are the organisms likely to be found in level 4 of diagram.Learn more at: https://brainly.com/question/15948938?referrer=searchResults
What is the gel-like fluid that fills the cell and surrounds the organelles?
Answer:
The cytoplasm.
Explanation:
This gel-like fluid helps the cell keep its shape and allows substances to move around the cell.
Answer:
The correct answer will be- Cytoplasm.
Explanation:
The cytoplasm is a transparent, clear and gel-like material enclosed by the cell membrane of the cell.
The cytoplasm is made up of main water but contains important constituents required by the cell-like enzymes, salts, organic molecules and mainly cell organelles.
The cell organelles always remain suspended in the cytoplasm where it acts as a site for a various metabolic reaction like transcription and glycolysis.
Thus, the cytoplasm is the correct answer.
What happens to food material that cannot be digested?
It is mixed with chyme.
It is stored as nutrients.
It is eliminated as feces.
It is converted into bile.
Answer:
It is eliminated as feces.
Explanation:
It is eliminated as feces because it has to get out of your body.
hope this helps
Answer:
It is eliminated as feces
Explanation:
Food material that cannot be digested and absorbed are passed to the large intestine, this food, which is now Feces, is stored in the rectum until it is passed out of the body through the anus.
Hemophilia is an X-linked recessive disorder.
What is the probability of having hemophilia for the cross that is shown in the Punnett square?
O percent
25 percent
Which of these statements express a scientific theory
A.The larger of two cells probably contain a nucleus
B. Cells are the basic unit of life
C. All the tissues that make up animals consist of cells
D. A material the consists of cells came from living organism.
Answer: B) cells are the basic unit of life
Explanation:
i got it right
Which features is used to classify a rock based on its composition
The origin of the rock
The texture of the rock
The type of mineral in the rock
The shapes of the crystal in the rock
Answer:
The correct answer is "The type of mineral in the rock".
Explanation:
Rocks are classified mostly by its texture and its composition. When a rock is classified based on its composition the feature that is most used is the type of mineral in the rock. For instance, igneous rocks are made of silicate minerals, while quartz, K-feldspar, and muscovite are found in sedimentary rocks.
A solution containing HCI would likely have
Answer:
A solution with HCl would likely have a low pH and a high pOH. Hydrochloric acid or HCl, from the name itself is acidic its pH is always below neutral pH or 7. pH is the measure of the concentration of hydronium ions (H3O+) in a solution while pOH is the measure of the concentration of hydoxide ions (OH-) in a solution. A relationship exist between the two values of a solution where pH + pOH = 14 therefore when the pH is low, consequently, the pOH is high.
Explanation:
hope this helps
A solution containing HCI would likely have a low pH and a high pOH.
How can the pH of the solution be calculated if the pOH is known?In order to calculate the pH, take the negative log of the hydronium ion concentration. To find the pOH, simply subtract the pH from 14. In order to calculate the pOH, take the negative log of the hydroxide ion concentration. To find the pH, simply subtract pOH from 14.
How is pH related to pOH?As pH increases, pOH decreases. As pH decreases, pOH increases. Knowing what ion you are measuring on which scale, will tell you whether or not the solution is acidic or basic. Because these scales are related, an equation can be used to explain their correlation.
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Why does sexual reproduction result in more genetic diversity than asexual reproduction
Answer:
Sexual reproduction provides genetic diversity because the sperm and egg that are produced contain different combinations of genes than the parent organisms
Explanation:
Answer:
Sexual reproduction provides genetic diversity because the sperm and egg that are produced contain different combinations of genes than the parent organisms. ... Each resulting cell, or gamete, resulting from meiosis has only half the amount of DNA as the parent cell
Explanation:
In this lab, you will observe the properties of oil, cornstarch, salt, and sodium bicarbonate. You will use the properties to classify the substances as ionic and covalent. Restate this goal in the form of an investigative question.
Answer:
An investigative question for the observation can be "How to determine whether a substance is ionic or covalent?"
All biological researches are made through the process of scientific method. A scientific method starts with an investigative question based on which a hypothesis is derived. A number of qualitative and quantitative experiments are done to test this hypothesis. Based on the results from the experiments, a hypothesis is declared true or false.
Answer:
Lab Question: Based on a substance's properties, how can you determine whether its bonds are ionic or covalent?
Explanation:
Mention the correct independent variable, the substance’s properties (such as solubility, conductivity, and state of matter).
Mention the correct dependent variable, the type of bond, ionic or covalent.
The idea that viruses originated as genetic material that was able to move within a genome, eventually exiting a cell and entering another is the _____ hypothesis.
Answer:
Progressive hypothesis
Explanation:
According to this hypothesis, the viruses originate with a progressive process. The mobile of the moving parts of genetic material capable of moving within a genome, gained the ability to withdraw from one cell and enter into another. In other words, viruses have risen from genetic elements that have gained the ability to move between cells .
Answer:
Progressive
Explanation:
According to this hypothesis, the viruses originate with a progressive process. The mobile of the moving parts of genetic material capable of moving within a genome, gained the ability to withdraw from one cell and enter into another. In other words, viruses have risen from genetic elements that have gained the ability to move between cells .
PENN
Which of the following terms means a type of thermal injury to the skin caused by heat source?
A. Burn
B. Bulla
C. Bunion
D. Basal Cell Carcinoma
Final answer:
A burn is a type of thermal injury to the skin caused by a heat source, affecting different layers of skin and classified by degrees of severity - first-degree being the least severe and fourth-degree being the most severe.
Explanation:
The type of thermal injury to the skin caused by a heat source is known as a burn. Burns can occur as a result of exposure to extreme heat, radiation, or chemicals, and are classified into various degrees based on their severity. First-degree burns affect only the epidermis, the outer layer of the skin, and are considered superficial. These often heal within a few days without permanent damage. Second-degree burns are more serious, affecting both the epidermis and the dermis, causing blisters and soreness. Third-degree burns penetrate the full thickness of the skin, destroying both the epidermis and dermis, which can lead to significant complications including infection and require medical attention. Lastly, fourth-degree burns extend into the muscle and bone below the skin, and they are usually not painful because nerve endings are destroyed.
End result of meiosis in humans
Answer:
Mitosis is the type of cell division the purpose of which which is that two identical copies of a cell are formed. The end result is that the DNA/chromosomes replicate and one set of chromosomes, with some of the cytoplasm and its contents, goes to each new "daughter" cells.
Which characteristic of water is most helpful to fish in a lake?
A.
Water freezes at 0°C.
B.
Water molecules are polar.
C.
Two elements make up the compound water.
D.
Frozen water floats on liquid water.
Final answer:
Frozen water floats on liquid water, providing an insulating barrier for fish in a lake.(Option D)
Explanation:
The characteristic of water that is most helpful to fish in a lake is that frozen water floats on liquid water.
When water freezes, it becomes less dense and expands. This causes it to float on the surface of the lake instead of sinking to the bottom. The layer of ice acts as an insulating barrier, providing protection for the fish living in the liquid water beneath.
Without this characteristic, the lake would freeze solid from the bottom up, making it impossible for fish and other organisms to survive.This unique property of water, where frozen water floats, not only forms an insulating barrier crucial for fish survival but also prevents lakes from freezing solid, ensuring the viability of ecosystems and the diverse organisms that rely on liquid water habitats.
Type 1 survivorship organisms are characterized by
A. All of the offspring live at least 10 years
B. They have lots of offspring and offer no parental care
C. They have very few offspring to provide lots of parental care to ensure survival
D. They have some parental care and a few survive and a few don’t
Answer:
c
Explanation:
Final answer:
Type I survivorship organisms, such as humans and most primates, are characterized by having fewer offspring and providing extensive parental care, with most offspring surviving into adulthood. The correct answer to the question is option C.
Explanation:
Type I survivorship organisms are characterized by having relatively few offspring and providing a significant amount of parental care to ensure the survival of these offspring. This strategy is observed in species where a high percentage of offspring survive their early and middle years, with death occurring predominantly among the older individuals. Humans, most primates, and certain large animals exhibit this survivorship curve. Option C in the question corresponds to this description, indicating that Type I species have very few offspring to which they provide lots of parental care to ensure survival.
How does land development destroy ecosystems? It increases human carrying capacity too rapidly. It converts them into residential or agricultural areas. It forces humans to import non-native plants and animals. It expands the natural range of native wildlife species.
Answer:
It converts them into residential or agricultural areas
Explanation:
The land development has been destroying the ecosystems for quite some time now. In order to satisfy their own needs, the humans have been merciless toward the environment. Lot of forests have been cut down, wetlands dried out, and grasslands converted. The main reasons have been to convert these areas into residential or agricultural areas. In the past two centuries though, there has also been another major reason, and that is the industrial development, and in order for the people to make space for the industry and to get to resources for it to run, they have destroyed countless ecosystems.
Answer:
It converts them into residential or agricultural areas
Explanation: