Answer:
cell regulates their division by communicating with each other using chemical signals from special protein called cyclins. these signals act like switches to cell when to start and later when to stop dividing.
Explain, in detail, the difference between a population and a community
Explain how a person can reduce their risk of coronary heart disease
Answer:
Eating a heart-healthy diet
Eating more protective foods like fruits, vegetables, whole grains, lean protein, fish, nuts, and olive oil. Limit or avoid sweets, fried foods, red and processed meats, and full-fat dairy products. Too much sodium can raise your blood pressure.
Explanation:
hope i helped
A cell going through meiosis changes as it divides. Which process is most important for producing
haploid cells?
Group of answer choices
independent assortment
reduction division
synthesis
crossing over
Answer:
Reduction DivisionExplanation:
Reduction division is the process that is most important for producing haploid cells during meiosis. Therefore, option (B) is correct.
What is meiosis?Meiosis is a type of cell division that occurs in sexually reproducing organisms. It involves two successive divisions (meiosis I and meiosis II) that result in the production of four daughter cells, each with half the number of chromosomes as the parent cell. This reduction in chromosome number is known as "reduction division."
Reduction division is important because it ensures that the daughter cells produced by meiosis have the correct number of chromosomes. In organisms that have a diploid number of chromosomes (such as humans, which have 46 chromosomes), the daughter cells produced by meiosis have a haploid number of chromosomes (23 chromosomes). These haploid cells can then combine with other haploid cells during fertilization to form a new diploid organism.
Independent assortment, synthesis, and crossing over are also important processes that occur during meiosis, but they do not directly produce haploid cells. Independent assortment refers to the random distribution of chromosomes to daughter cells during meiosis I. Synthesis is the process of DNA replication, which occurs prior to meiosis. Crossing over is a process that occurs during meiosis I in which chromosomes exchange genetic material, leading to genetic diversity in the daughter cells.
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Heather presented to her class a report about the pancreas. Which statement in Heather’s report was not accurate?
Answer:
C. The pancreas triggers the development of secondary sex characteristics.
Explanation:
y e s
What does the peak of the dotted line represent?
HEEEEEELP. PLEASEEEEEEEEEEEEE
there you go ^^
hope i helped
Explain the effect of activity on a heart rate
What height in meters must the student climb in order to reach the top of the hill?
Answer: 256 or 300 sorry if i was incorrect
Explanation:
The student must reach the top of the hill, and this is entirely dependent on the hill's elevation, which varies from one area to the next and is not constant in any particular area.
What is the significance of the hill in the ecosystem?The hill is the highest point on Earth and plays an important role in ecosystems because it can provide a variety of different habitats for plants and animals as well as act as barriers that separate different ecosystems, such as the forest ecosystem present on one side of the hill from the grassland ecosystem present on the other side of the hill, and it is also a depositary of minerals and other resources.
Hence, the student must reach the top of the hill, and this is entirely dependent on the hill's elevation, which varies from one area to the next and is not constant in any particular area.
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The Devils Hole pupfish is one of the world's rarest fishes, spending most of its life in the top few meters of very warm waters of a cavern located in the middle of the Mojave Desert. Devils Hole,
a geologic pool, is the only naturally occurring habitat for the endangered Devils Hole pupfish. This fish's habitat is one of the smallest natural ranges known for any vertebrate. Devils Hole is an
extreme environment, with water temperatures and dissolved oxygen concentrations near the lethal limits for most fish species.
Which of the following statements best explains why the Devils Hole pupfish are able to live in this environment?
Answer:
Thermal invasive
Explanation:
Devils Hole pupfish can live in this environment because they have adapted genes, which offer resistance to their bodies to the harsh environment where they live.
We can come to this answer because:
A living being can only live in an inhospitable environment if its organism allows for an adaptation.In this case, we can say that Devils Hole pupfish had a population with different genetic compositions, where some had genes adapted to this environment and others did not have these genes.Devils Hole pupfish that didn't have the adapted genes didn't resist the environment and died.The Devils Hole pupfish that possessed the genes survived and passed those genes on to their descendants.In this case, Devils Hole pupfish that received the genes adapted to the environment developed resistance that allows them to live amidst extreme resources.
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students set up a controlled experiment. they put up five crickets in each of three identical containers. they set one container to 15 degrees Celsius one to 20 degrees Celsius and one to 25 degrees Celsius then they count the number of chirps in each container during 1 hour
what is the manipulated variable in this experiment
a. the kind of container used
b. the temperature of each container
c. the number of cricket chirps
d. the number of crickets in each container
Answer:
the answer is B the temperature of each container
1. Tell me if this is true or false. If it is false tell me why. "Cereal grains are an excellent
source of complex proteins."
Answer:
True
Explanation:
The most common cereal grains that are used is wheat, rice, oats, and corn. WHich can all be high in a protein called prolamins, including vitamin D&E, fiber, iron, and other nutrients.
A man with blood type A, whose mother was type o, has a child with a woman that has type AB blood. Which blood
types are possible in their children?
Answer:
Ab a o
Explanation:
A man with blood type A, whose mother was type o, has a child with a woman that has type AB blood. Which blood
types are possible in their children AB, a, O.
What is ABO blood grouping ?The blood grouping can be defined by the presence of surface antigens in the red blood cell which are A and B. The gene present on the parent chromosome can determine the blood group.
Blood type A represents to the presence of gene A, and its genotypic expression can be A/A or A/O.
Type B blood group where genotype is represented as B/B or B/O, is due to the presence of a gene containing the B antigen.
AB blood group which is codominant- has one gene for A and another for B, with genotype A/B.
Blood type O is mainly characterized by the absence of surface antigens, behaves like a recessive trait, which only manifests itself in the absence of surface antigens A and B. The genotype is O/O.
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Which discovery was essential to the concept that all life forms have cells as basic units?
Fungi, such as mushrooms and molds, get their nutrition primarily by
Answer:
A1) The invention of the microscope led to the discovery of the cell by Hooke.
A2) Decaying organic matter
Explanation:
__________
A student mixes strawberry kool-aid and water. A pH meter is used to measure the pH of 5.4. What kind of solution is strawberry Kool-Aid? **
Tigers running across the field. what would happen if the hydrogen ion pumps in the Tigers mitochondria stopped functioning?
Answer: A
Explanation:the tiger would not be able to keep running
Help pleas due in 25 minutes. this is the 3 time that I have posted this question
In the middle of the night, you are awakened by hunger pains. You proceed to get up and go to the kitchen to have a couple of cookies and a glass of milk. Satisfied you go back to bed content. Explain in detail what tissues, organs, and organ systems are involved in completing that task. Be sure to include how the systems interact. The more detail the better! Start with getting up to get the food and include details on the steps in how the food gets digested.
. Explain in detail
Answer:
you would use your muscles from your legs and your body to get up from your bed and go to your fridge, your muscular system helps you up by being a structure for the muscles to apply force, you will use arm muscles for getting out cookies and milk. Then you will drink and eat your cookies and milk with your jaw muscle and send it down your esophagus to the intestines for the digestive system to break down your food. Then you will use your legs(muscles) to go back to your bed and sleep. (don't copy this whole thing it is not complete and you must add stuff so it is complete im just giving you an idea or the structure of this essay)
How did the arrival of the green bacteria likely affect the survival of purple bacteria?
Answer:
Have a wonderful day and I hope this is helpful?
Most of the cells of the human body contain two sets of 23
chromosomes. Where did these chromosomes come from?
a- both sets came from the mother
b- both sets came from the father
c- a random number of chromosomes came from each parent
e-one set came from each parent
Answer:
e-one set came from each parent
Explanation:
Does diffusion require energy??!! (:
Answer:
no
Explanation:
i requires some form of ATP
Helppp Pleaseee Ill give u pointssss
Answer:
I think it is F.
Explanation:
Answer:
Letter E
Explanation:
Letter F shows a codon, an anticodon is the opposite match for the codon, in this case letter E
Which of the following organelles is in plant cells, but not animal cells ?
1. Nucleus
2. Endoplasmic reticulum
3. Chloroplasts
4. Cytoplasm
Answer:
Chloroplasts
Explanation:
Photosynthesis occurs in chloroplast . Plants do photosynthesis , so they have chloroplasts in their cells. But animals dont do photosynthesis , so they dont have it in their cells
Give one example of how humans can affect the biosphere. How might that impact the other spheres in the Earth system?
Answer: Piling up our waste in landfills affects the geosphere. Pumping waste into the oceans harms the hydrosphere. And overfishing and habitat destruction can reduce the diversity of living things in the biosphere.
Explanation: Hope this helps and good luck :)
Which molecules does a cell need from food to make these membrane
Answer: The organic molecules required for building cellular material and tissues must come from food. Carbohydrates or sugars are the primary source of organic carbons in the animal body. During digestion, digestible carbohydrates are ultimately broken down into glucose and used to provide energy through metabolic pathways.
Hope this helps...... Stay safe and have a Merry Christmas!!!!!!!! :D
When we hear the word bacteria, we probably think of disease transmission or illness. But bacteria provide many
health benefits to humans. All BUT ONE is a health benefit of bacteria today in the world of medicine.
A)
production of vaccines
B)
genetic engineering to produce insulin
fixing atmospheric nitrogen into a usable form
D)
probiotic added to food and vitamin supplements
Answer:
A is the correct option
Explanation:
In the pharmaceutical industry, bacteria are used to produce antibiotics, vaccines, and medically-useful enzymes.
What is the most plentiful gas in our current atmosphere on earth?
A) oxygen
B) helium
C) hydrogen
D) nitrogen
Answer:
D) Nitrogen..............
20. Scientists have discovered that there has been a reduction in the butterfly population in an ecosystem. After much
research, they have identified that the carrying capacity for butterflies has been decreased. If the scientists want to increase
the butterfly population, which action should they recommend?
A. removing primary producers
B. spraying of insecticides
C. increasing runoff
D. planting flowers
Answer:
i think the answer is planting flowers
Explanation:
this will allow more butterflies to have food.
Answer:
hello again
Explanation:
all you need is in the photo
Answer:
i want to ive in habitat a
Explanation:
mark me brainliest bc im smart and helped aloyt
Answer:
D
Explanation:
Because more water is there since its not that dry in habitat A, and transpiration means like water vapor through plants/leaves
The femoral is ____
to the tarsals.
rregion to the tarsals
If the diploid number of an onion cell is 16, what is its haploid number?
Answer:
8
Explanation:
The haploid number is always half of the diploid number so half of 16 is 8
Which of the following is not one of the following elements of hip-hop culture
Answer:
Yes you are correct
Explanation: The only answer would be graffitti art because that has nothing to do with the hip-hop culture.
Answer:
b
Explanation:
trust the rest is good it b