Meiosis is the cell division that enables sexual reproduction. It consists of two successive cell divisions, after which four genetically different cells are obtained, which contain half the number of chromosomes as the mother.
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1 point
behaviors are described as genetically “programmed" or
"automatic" responses to stimuli.*
innate behavior
learned behavior
social behavior
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flocking
Answer:not so goodly and smart
Explanation:
how is covalent bonding important to human beings?
Answer: They are found in proteins and DNA.
Explanation:
Covalent bonding is important to human beings because they are commonly found in carbon-based organic molecules which are considering proteins and DNA which are found in the human body.
There are three types of chemical bonds that are very important in the human body and physiology
A portion of grass in a prairie ecosystem was destroyed by wildfire. What will most likely happen to the population of bison that feed on the grass? a. The number of bison will increase. b. The number of bison will decrease. c. The bison in the ecosystem will be completely wiped out. d. The number of bison will remain unchanged. Please select the best answer from the choices provided A B C D
Answer:
B
Explanation: I’m just using common sense. If part of the prairie grass is destroyed, that would mean less food for the bison. Which in turn would result in a decrease of Bison?
Answer:
b. the number of bison will decrease.
Explanation:
the wildfire partially destroyed the bison's ecosystem. With less food for the herd, some of them will starve off, decreasing the number of bison there are in the herd.
Matter is recycled within and between ecosystems through closed loops called biogeochemical cycles. How is this unlike how energy is passed through ecosystems?
Answer:
Energy flows in a one-way direction i.e. unidirectional flow
Explanation:
Matter and energy both pass through an ecosystem as organisms feed on one another. However, as rightly emphasized in this question, matter in form of elements such as water, nitrogen, phosphorus etc. moves in different directions and is recycled within and between ecosystems through closed loops called biogeochemical cycles.
Contrarily to how matter is recycled in an ecosystem i.e. within and between, ENERGY only flows in one direction. Energy enters an ecosystem in form of light (sun) and is passed down from one trophic level to another starting from the producers. This unidirectional pattern of energy flow differentiates energy flow from matter recycling.
what happens in people that have this difference in their DNA?
Answer:
Explanation:
DNA comes in long strands called chromosomes, which are kept inside the nucleus of a cell. Every one of our cells has a nucleus with all of the DNA. Each cell is different not because of the bits of DNA in it, but because of the bits it uses to make things.
Each strand of DNA is made up by joining together nucleotides. There are four different nucleotides called adenine (A), thymine (T), cytosine (C) and guanine (G). If you could see the nucleotides in a strand of DNA it would look something like this: AACGTATTGACATAGGGGGGCCTACTTA
It is quite extraordinary that just four different nucleotides make up the code of every single living thing. The order that these nucleotides are in determines the difference between a brain cell, a toenail, a blood cell and whether or not we have a certain disease.
So if you wrote out the DNA sequences of two people and matched them up together, they would look almost exactly the same. There would be about 1 difference in every 100 nucleotides (it’s actually more like 1 in 1000). These differences determine whether you have blonde hair or brown, whether you are tall or short, whether you will have asthma or not.
You are more similar to people you are related to because your DNA came from the same place; your great, great, great grandparents, or something like that. Your DNA is a combination of your Mum and Dad’s DNA, half from each. So you are half the same as your Mum, half the same as your Dad. If you looked at the DNA of a friend you are not related to, they would also be half the same as their Mum, and half the same as their Dad, but they would be quite different to you. This is because the last common ancestor (person who is related to you both) was so many hundreds or thousands of years ago, that a lot of changes have occurred in the DNA sequence since then.
When the given type of mutation happens, the round shape of the R.B.Cs changes from a round shape to a sickle-like shape. This condition is known as sickle shape anemia.
What is sickle-shaped anemia?Sickle-shaped anemia is a genetic disorder. In this disease, the shape of the red blood cells changes to sickle-like. The red blood cells of sickle shape are not healthy. They die early and easily. This condition causes a shortage of healthy red blood cells. The symptoms are low red blood cells, block blood flow, pain in the body, dizziness, joint pain, blurred vision, and headache.
Patients who suffer from that condition are likely to have episodes of pain. This is known as a vaso-occlusive crisis. The pain can last from one week to two weeks.
Learn more about sickle-shaped anemia, here:
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Which phrase describes the ability to mark which part of the brain controls what?
A. hemisphere surgery
B. brain mapping
C. brain tumor
Answer:
brain anatomy describes the ability of brain
Explain how slumping or soil creep occur. Will hit heart❤️
Answer:
Slumps often happen when a slope is undercut, with no support for the overlying materials, or when too much weight is added to an unstable slope. Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock.
If a fatty acid has 17 Cardons and 34 oxygens, you know that is...
1. None of the above
2.Polyunsaturated
3.Monounsaturated
4.Saturated
Answer:
is 3
Explanation:
becouse is correct
Please help me out :( !! Compare and contrast mutualism, commensalism, and parasitism. Use clear and complete sentences.
Answer:
Mutualism is where both organisms benefit, commensalism is where one benefits but the other organism isn’t harmed, and lastly, parasitism is where one organism benefits and the other is harmed. The various species found within a single ecosystem can relate to each other in a variety of ways. The terms mutualism, commensalism, parasitism and symbiosis all refer to the various ways that species within an ecosystem can interact with one another.
Explanation:
In prophase, this form of DNA is loose, uncoiled, and unorganized in the nucleus.
Answer:
Chromosomes
Explanation:
What structure do white blood cells use to engulf bacteria when they do phagocytosis?
A. cilia
B. flagella
C. pseudopod
D. oral cavity
The engulfed object is thus enclosed within a membrane-bound vacuole called a phagosome. The phagocyte digests the ingested particle with hydrolytic enzymes, which are contained within membrane-enclosed sacs called lysosomes found within the cell.
Describe the function of each organelle nucleus
Answer:
Directs cell activity
Explanation:
EDGE 2022
What is the principle of superposition? A. The layers of sediment on the bottom are the oldest. B. All layers of sediment are identical. C. In a given region, all layers of sediment form at the same time. D. The geologic processes of today are very different from those in the past.
Supperposition = the oldest layer in a sequence of undisturbed sedimentary rock is on the bottom
The principle of superposition is the layers of sediment on the bottom are the oldest. Hence option A is correct.
What is superposition?Superposition is defined as a quantum system's capacity to exist in several states simultaneously up until it is measured. It is used to transform any circuit into its Thevenin or Norton equivalent. The theorem can be applied to networks of linear sources, linear passive elements, linear transformers, and linear dependent sources.
The original horizontality concept serves as the foundation for the superposition principle. According to the principle of superposition, each layer of sedimentary rock is older than the one above it and younger than the layer below it in a series of unaltered rocks.
Thus, the principle of superposition is the layers of sediment on the bottom are the oldest. Hence option A is correct.
To learn more about superposition, refer to the link below:
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please explain how respiration is the opposite of photosynthesis.
Gene therapy is a form of
Selective breeding
Artificial selection
Cloning
Genetic engineering
Answer:
Genetic engineering
Explanation:
Gene therapy is a form of genetic engineering used to treat genetic disorders and other diseases that can be ascribed to genetic issues.
A bad gene or malfunctioning is replace by a better gene. This helps to address specific genetic issues. Genetic engineering is a group term used to describe the application of recombinant DNA technology to manipulate the genotype of organisms. Cloning, selective breeding and artificial are all forms of genetic engineering.Answer:
Genetic engineering.
Explanation:
I took the quiz lolz on edge 2020
THIS _________________ HAPPENS AUTOMATICALLY WITH A CELL IF ITS __________________ IS PERMEABLE TO THE ________________ AND IF THERE IS A DIFFERENCE IN _______________________ OF THE MOLECULES ON EITHER ___________ OF THE MEMBRANE. THIS IS __________________ ____________________.
Answer:
movement; cell membrane; molecules; concentration; side
THIS IS know as diffusion
Explanation:
Diffusion is the movement of molecules from the side of the membrane with a higher concentration to the side of the membrane with a lower concentration. Facilitated diffusion is a process that occurs if the cell membrane is permeable to these molecules and if there exists a difference in the concentrations on the two sides of the membrane. This mechanism is also known as passive transport because no energy is needed for the movement of molecules across the membrane.
why hydra is example of both budding and regeneration?
Answer:
Organisms such as hydra use regenerative cells for reproduction in the process of budding. In hydra, a bud develops as an outgrowth due to repeated cell division at one specific site. These buds develop into tiny individuals and, when fully mature, detach from the parent body and become new independent individuals.
Explanation:
A teacher challenges her students to each build a solar oven using common household materials. The students will then test their designs using thermometers. What engineering problem are they trying to solve?
Answer:
Climate issues associated with engineering works
Explanation:
A teacher challenging her students to each build a solar oven using common household materials is highly commendable. The students using this method will help in solving the engineering problem of climate issues.
This will help in the reduction of emission of greenhouse gases which causes global warming. Solar energy on the other hand is renewable and free from emission of such gases.
Describe what plants need to survive
Answer:
All plants need these seven things to grow: room to grow, the right temperature, light, water, air, nutrients, and time.
Explanation:
can all the plants prepare their food? why?
Difference between plants and animals
Answer:
plants are live in soil and animals are live in religion
Explanation:
dont judge me if im wrong
Question 1 (5 points)
Geologic time periods are divided into segments based on two pieces of information.
Describe them.
Answer:
Geologic time spans are divided into units and subunits, the largest of which are eons. Eons are divided into eras, which are further divided into periods, epochs, and ages.
Explanation:
Photosynthesis uses sunlight, water and carbon dioxide to create this sugar:
1. water
2. glucose
3. carbon dioxide
Explanation:
The sugar produced is Glucose. (2)
Please Answer this one MCQ. I am in trouble please help ..
Answer:
H is a motor nueron
J is the sensory nueron
G is the internueron
Explanation:
Your drawing seems a little bit of so I hope I get it right!. I know that Relay neurons are found in the brain and spinal cord and allow sensory and motor neurons to communicate. Motor neurons are found in the central nervous system and control muscle movements.
cellular respiration is a three-part process. Number the processes in the correct order.
Answer:
Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport.
Explanation:
...need thanks and make me brainiest if it helps you
Answer:
my mom
my dad
my sister
Explanation:
When a cell uses ATP energy to transport a substance through a cell membrane from an area of lower concentration to an area of higher concentration, the cell is using
Answer:
ACTIVE TRANSPORT
Explanation:
Generally, the transport of molecules across membranes can either be ACTIVE OR PASSIVE. Active transport are those transport that occurs against a concentration gradient i.e. from an area of low concentration of the substance to an area of high concentration, hence, will require energy input in form of ATP.
On the other hand, passive transport occurs down a concentration gradient and hence do not require energy to take place. Hence, based on the description above, when a cell uses ATP energy to transport a substance through a cell membrane from an area of lower concentration to an area of higher concentration, the cell is using ACTIVE TRANSPORT.
What is artificial selection?
A.When a new allele is formed by mutation
B.When humans breed an animal for a certain trait
C.When extreme traits are selected by nature
D.When 60 percent of a species dies at one time
The answer is B since that's the definition of artificial selection ,selective breeding made by humans
40.) A common garden pest is the slug. They are covered in slime and they 1 eat vegetable leaves. Gardeners will put salt on a slug if they see one in their garden. Part A: What type of transport is occuring when salt is placed on a slug? Give the broad (general) category of transport and the specific type of transport in your answer. (Should have two answers)
Answer:
osmosis
Explanation:
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Answer:
A
Explanation:
When a light ray hits a mirror which is a shiny object , it reflects in one directionHave a nice Day , I would appreciate it if you could mark my answer brainliest