Which of the following can be different about identical twins at birth?
A. Their weights
B. Their genes
C. Their genders
D. Their parents
Someone help me please
Answers
Answer:
A-Weight
Explanation:
Genes, genders, and parents will be the same in identical twins.
Related Questions
Review this paragraph and read the graphic from the text “Overfishing the Oceans.” Then answer the question.
Overfishing is a problem that affects a whole ecosystem. A healthy ocean has a balance of different species. One problem with overfishing is that it takes away many of the top predator fish and disrupts this balance. Fishing can also disrupt the marine ecosystem in other ways.
Based on the information in the paragraph and graphic, what can you conclude about the topic?
A. Fishing can never be done responsibly.
B. Fishing never accidentally kills fish or marine animals.
C. Overfishing will affect only the species of fish that is being caught.
D. Overfishing will cause the deaths of many marine species that are not directly being fished.
Answers
Answer:
I'm pretty sure the answer is c
Explanation:
Please help with backside I’m so lost it’s due Friday! I will mark brainliest
Answers
2. Energy moves around this ecosystem through a food chain. Producers (plants) use sunlight to produce energy through photosynthesis. This energy is then transferred to herbivores (rabbits), which are eaten by carnivores (hawks). Energy is lost at each level of the food chain through respiration and other metabolic processes, so the amount of energy available at each level decreases.
3. If a disease strikes the snake population, the population of hawks and rabbits would be affected. If the snake population declines, there would be fewer predators to prey on the rabbit population. This would cause the rabbit population to increase, which would lead to an increase in the hawk population as they have more food to eat. However, if the disease is severe and the snake population declines too much, there may be a shortage of food for the hawks, causing their population to decline as well.
4. If the rabbit population suddenly doubled, the effect on the grass would be negative. With more rabbits, there would be more grazing pressure on the grass, leading to overgrazing. Overgrazing can lead to a decrease in grass biomass, which can negatively affect other organisms that rely on grass for food and shelter. Additionally, with less grass available, the rabbit population may eventually decline due to a lack of food. This would cause a chain reaction that could lead to the decline of other organisms in the ecosystem.
7. So if a disease stroked the snacks population than the effect on hawks would be that they would feed off a different food source, such as the rabbit. The rabbits population would decrease and soon enough the hawk population would decrease because of the competition towards food. This happens because snakes are secondary consumers and hawks feed off both rabbits and the snakes to balance the populations. If one disappears or decreases than the hawks would aim toward the animal that has a bigger population, the rabbit. Making the rabbit population leading towards less food all around.
8. If the rabbit population doubled than the grass would decrease or would die. This would happen because there is to many consumers and the grass can not keep up with how much it is giving out. This would also lead to a decrease to the rabbit population making the population really low or back to normal, depends on how quickly the grass grows.
can someone answer this for me? tysm!
65 points?
Answers
Answer:
Explanation: :/
Motor information is sent from the brain to the hand, resulting in writing. This information travels through which of the following types of spinal
nerves?
Cranial
Cervical
Lumbar
Sacral
Answers
Answer:
Cervical
Explanation:
The answer was in quizlet exam! Sorry, I hope this helps!
Answer:
B. Cervical
Explanation:
Just took the test and got it right!!
Hope this helps!!
All the love, Ya boi Fraser :)
Chapter 3 light waves quiz
Question 1:
Which is the correct wave choice for light
source B?
How do you know?
Question 2:
Use diagram 2 on the left to answer the
questions below. a) Did Object 1 absorb energy from
the light? Explain your answer.
b) Did Object 2 absorb energy from
the light? Explain your answer.
Answers
Answer:
that’s a hard question
Explanation:
what is your first finger called?
Answers
Answer:
The one next to your thumb is called the fore finger, pointer finger, or index finger.
Explanation:
Answer:
Pinky, thumb, ring finger, middle finger, and pointing finger.
Explanation:
They are on my hands at least
The temperature of the water was measured at different depths of a pond.
A. Dependent Variable
B. Independent Variable
Answers
Answer:
independent variable
Explanation:
I learned this in 7th grade
I want to now who are you
Answers
Answer:
Did you mean:
I want to know who are you.
or
I want to know, how are you?
Explanation:
:( i have no idea what ur asking :(
Part D
The lineage of pea plants produced round seeds for four generations. The plants that fertilized these pea plants also produced round seeds. However, in the fifth generation, the plant produced to two plants with wrinkled seeds. Can that be possible? Explain your answer using your pedigree chart.
Answers
Answer:
Explanation: black white gray black black white
A river flows into a lake. A community builds a dam to divert the river for crop irrigation use before it reaches the lake. Which describes a way in which biodiversity in the lake will be directly affected by this change?
Select one:
The size of the lake will increase, attracting more organisms who rely on it as a water source.
Nutrient levels in the lake will increase, encouraging the growth of new plants.
With less water flowing into the lake, the water temperature increases. Some species are unable to survive in the warmer water.
Diverting the river will introduce new, invasive species into the lake.
Answers
Answer:
With less water flowing into the lake, the water temperature increases. Some species are unable to survive in the warmer water.
Explanation:
Biodiversity of a lake is dependent on the flows from rivers. The health of the biota of the lake would be greatly affected when there is reduced flow of water from the river as a result of diversion into dams for agriculture purpose.
The major impact reduced water flow will have on the biota of the lake is that many species that cannot tolerate draught as a result of increase in water temperature caused by reduced flow of water, would eventually become extinct. The biota of the lake would diminish or decline.
where did the name '' hamster'' probably come from?
A. The animal was discovered by a person named Hamm.
B. People thought the animals looked like little hams.
C. It comes from a word meaning ''tiny''.
D. It comes from a word meaning ''to hoard''.
Answers
Answer:European Hamster
Smallest breed
Roborovski hamster
Stout-bodied rodents,
with tails shorter than body length, and have small, furry ears, short, stocky legs, and wide feet.
en.wikipedia.org
Popular breed
Golden hamster
They carry food in their spacious cheek pouches to their underground storage chambers. When full, the cheeks can make their heads double, or even triple in size.
en.wikipedia.org
Explanation:
Thousands of people die each day from infectious diseases they pick up from unsafe drinking water.
True or False?
Answers
Answer:
Explanation:true
Answer:
True
Explanation:
More than 5 million people die each year from diseases caused by unsafe drinking water, lack of sanitation, and insufficient water for hygiene. Which makes Thousands of People each day!!!
Infectious Disease Investigation
The students are to investigate an infectious disease.
They will choose a specific infectious disease, such as the flu, common cold, or
COVID-19, and research its causes, symptoms, and preventive measures.
Students are to create informative posters or presentations about the disease,
including its transmission methods and ways to protect oneself from infection.
They will explain the importance of personal hygiene and vaccination in preventing
the spread of infectious diseases.
Following the summer vacation, the students will be given an opportunity to present
their findings to the class or organize an "Infectious Disease Awareness Campaign"
where they can share their posters or presentations with their peers.
Answers
Answer:
The common cold is an illness affecting your nose and throat. Most often, it's harmless, but it might not feel that way. Germs called viruses cause a common cold.
Often, adults may have two or three colds each year. Infants and young children may have colds more often
Paragraphs 10-14:
10:Consider helium again. Most helium atoms have two neutrons in addition to two protons. Therefore the mass of most helium atoms is 4 atomic mass units (2 amu for the protons + 2 amu for the neutrons). However, some helium atoms have more or less than two neutrons. Atoms with the same number of protons but different numbers of neutrons are called isotopes. Because the number of neutrons can vary for a given element, the mass numbers of different atoms of an element may also vary. For example, some helium atoms have three neutrons instead of two. Therefore, they have a different mass number than the one given in the figure above..
11:Q: What is the mass number of a helium atom that has three neutrons?
12:A: The mass number is the number of protons plus the number of neutrons. For helium atoms with three neutrons, the mass number is 2 (protons) + 3 (neutrons) = 5.
13:Q: How would you represent this isotope of helium to show its atomic number and mass number?
14:A: You would represent it by the element’s symbol and both numbers, with the mass number on top and the atomic number on the bottom:
5 He
2
Question:
There are two atoms of nitrogen: atom A and atom B. Nitrogen has an atomic number of 7. Atom A has a mass number of 15 and atom B has a mass number of 16. Are the two atoms isotopes? Why or why not?
EXTRA HELP
What is an isotope? What is different about atoms A and B? Use information from paragraphs 10-14 for additional help.
Answers
Answer:
2020?
Explanation:
NUMBER 2 and 3 and 4
Answers
Number 3 is C the lightbulb
Number 4 is D carbon dioxide
Which parts of the compound light microscope can be used to improve the quality of the image being observed?
a.) diaphragm and fine adjustment
b.) ocular and high power objective
c.) coarse adjustment and low power objective
d.) ocular and diaphragm
Answers
a.) diaphragm and fine adjustment
or
d.) ocular and diaphragm
but i’m leaning more towards a.)
Suppose you were asked to research information about a potentially dangerous synthetic food product. How would you evaluate the credibility of the sources you found?
Answers
A microscope has 10x low power objective and a 60x high power objective. If the low power field of view measure 2.4 mm, and 20 microorganisms could gross the diameter of the high power field of view, what is the diameter of each organism in micrometers?
Answers
Answer:
2.87
Explanation:
10x (10*7)
20x/7
2.87
plzzzzzzzzzzzzzzzz help
NO LINKS 20 POINTS
Answers
What is an example of an involuntary muscle at work?
Answers
Answer:
Involuntary muscles are muscles that work without the help of the human e.g. Arms, legs, fingers and toes The heart doesn't need help to work, like a voluntary muscle, therefore it is an INvoluntary muscle. It is also a cardiac muscle.
Explanation:
Answer:Compared to voluntary muscles, the involuntary muscles contraction is slow and rhythmic. Cardiac Muscles, Smooth Muscles, and Skeletal Muscles are examples of Involuntary Muscles.
Explanation:
Which of the following is NOT a function of the integumentary system?
a Helps regulate body temperature
b Eliminates waste from the body
c Helps move the body
Answers
Cell walls can be found in several different types of cells. Which of the following best describes the function of the cell wall?
A. Controls what passes in and out of plant cells.
B. Controls what passes in and out of animal cells.
C. Provides support and helps maintain the shape of plant cells.
D. Provides support and helps maintain the shape of animal cells.
Answers
a i think but plant cells
i thibk it is a but its definitely plant cells
The cell wall helps provide support to the cell. The plasma membrane is what controls the flow of ions and other particles into the cell. Cell walls are also only found in plant cells.
A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society?
May trigger an adverse climate change
May worsen the water crisis around the world
Would be beneficial for the malnourished population
Would increase the shortage of food around the world
Answers
Some people have one sickle cell gene and one normal gene. They have few defective cells and no symptoms because the sickle cell gene is recessive. How does the method of reproduction in humans result in people getting one copy of a sickle cell gene and one copy of a normal gene? Describe the process
Answers
For the gene that causes sickle cell disease, there are two possible versions, or alleles: a normal allele and a sickle cell allele. A person who has one copy of the normal allele and one copy of the sickle cell allele is said to be a carrier of sickle cell disease. They have few defective cells and no symptoms because the normal allele is dominant, meaning that its effects are seen even when only one copy is present.
When two carriers of sickle cell disease have children, each parent gives one copy of their sickle cell allele or their normal allele to their offspring. There are four possible combinations of alleles that their children can inherit: normal/normal, normal/sickle cell, sickle cell/normal, and sickle cell/sickle cell. The first combination results in a child who does not carry the sickle cell allele and does not have the disease. The second and third combinations result in children who are carriers like their parents, with one copy of the sickle cell allele and one copy of the normal allele. The fourth combination results in a child who has two copies of the sickle cell allele and will develop sickle cell disease.
Answer: This process of genetic inheritance through sexual reproduction ensures that individuals can inherit a mix of genes from their parents, including the possibility of receiving one copy of a sickle cell gene and one copy of a normal gene, resulting in the carrier state with few defective cells and no symptoms.
Explanation: Sickle cell gene refers to a genetic variant that causes abnormal hemoglobin and leads to sickle cell disease when inherited from both parents. Normal gene refers to the typical gene variant that does not cause any genetic disorders or abnormalities.
The method of reproduction in humans, known as sexual reproduction, involves the fusion of two gametes (sperm and egg) during fertilization. Each parent contributes one set of chromosomes, including the genes, to their offspring.
When it comes to the sickle cell gene, it is inherited in an autosomal recessive manner. This means that the sickle cell trait (having one sickle cell gene and one normal gene) occurs when an individual receives one sickle cell gene from one parent and one normal gene from the other parent.
To illustrate the process:
Each parent has two copies of the gene for hemoglobin, the protein responsible for carrying oxygen in red blood cells.One of the parent's copies has the sickle cell gene (HbS) and the other copy has the normal gene (HbA).The same is true for the other parent, with one sickle cell gene (HbS) and one normal gene (HbA).During reproduction, the parent's sex cells (sperm and egg) are produced through meiosis, a specialized type of cell division.In meiosis, the parent's pairs of chromosomes separate, and the resulting sex cells contain only one copy of each chromosome.Each parent's sex cells randomly combine during fertilization to form a new individual with two sets of chromosomes, one from each parent.As a result, there is a 25% chance that the offspring will receive two sickle cell genes (HbS/HbS) and have sickle cell disease, a 50% chance of receiving one sickle cell gene (HbS/HbA) and being a carrier of the trait, and a 25% chance of receiving two normal genes (HbA/HbA) and not having the trait or disease.
Seed Germination Investigation
The students are to investigate the process of seed germination during their summer
vacation.
They will select different types of seeds, such as beans, peas, or sunflower seeds.
Encourage students to set up a germination experiment by placing the seeds in
different conditions, such as light vs. dark, or wet vs. dry. Moreover, they need to
pot the same seed in more than one pots.
They should observe and document the changes that occur over time, including the
emergence of roots and shoots
Answers
Answer:
b
Explanation:
I took test
Answer: Encourage students to set up a germination experiment by placing the seeds in different conditions, such as light vs. dark, or wet vs. dry. Moreover, they need to pot the same seed in more than one pot.
Explanation:
This option provides a clear and practical approach to the seed germination investigation. By setting up different conditions for the seeds, such as light vs. dark or wet vs. dry, the students can observe and compare how these conditions affect the germination process. Additionally, potting the same seed in multiple pots allows for a controlled comparison within the experiment.
By manipulating these variables, the students can gather valuable data and observations regarding the influence of light and moisture on seed germination. This approach promotes a hands-on and investigative learning experience, encouraging students to actively engage with the scientific process while documenting the changes that occur over time, such as the emergence of roots and shoots.
write a song (or a poem) that talks about the importance of the endocrine system, the various glands that make it up, and the hormones that those glands produce. The song should include a chorus and at least two verses for a total of at least nine lines. The song should also help younger kids understand the function of the endocrine system.
Answers
Answer:B
Explanation: bc it is
Hi bro bro I don’t have any answer
Plssss Help! Will mark brainiest!
How would the moon appear to people on earth when the moon is above the earth and the sun is shining from the left side of the earth?
Answers
I haven’t find the answer yet
Science is painful I will give brainily to the correct answer :D
Answers
Answer:
a
Explanation:
Answer:
Bacteria are classified as prokaryotes because they lack a nucleus and membrane-bound organelles.
Explanation:
Really hope this helps!
ANSWER ASAP PLZ!!!!!!!!
Which of the following is not true? *
A. Canadians are some of the highest users of resources and energy in the world.
B. The average person in the world has an ecological footprint of 2.2 hectares.
C. At the present rate, the world cannot sustain its present levels of using resources and energy.
D. The amount of resources used in North America is far less than those used in poorer countries.
Answers
Answer:
D
in poorer countries, they use much less energy resources
Answer:
I'm pretty sure it's choice D.
Explanation:
I believe it's choice D because in poorer countries, there are less resources to go around. Therefore it's near impossible to use more resources than used in North America
How is this wrong?. This is from science but i'm a 7th grader with biomes test I have a retake later but why is it wrong.
Answers
Answer:
Your answer is Building highways
Explanation:
Because recycling paper is saving the enviroment by keeping paper in use for longer and therefore preventing more trees from being cut down. However, building highways requires that the land is prepared for the highway to be built which destroys the land.