Answer:
Species evolve over time as a result of
- the potential for a species' population to increase.
- genetic differences in offspring due to mutation and the recombination of genes.
- a limited supply of necessary resources.
- selection by the environment of offspring that are best able to survive and reproduce.
Explanation:
NOT random mating within a species
Answer:
Species evolve over time as a result of
the potential for a species' population to increase.
genetic differences in offspring due to mutation and the recombination of genes.
a limited supply of necessary resources.
selection by the environment of offspring that are best able to survive and reproduce.
Explanation:
just had it on study island
Name one disease spread by dust infection
DUDE THIS IS CRAZY I DONT UNDERSTAND BIOLOGY MAN PLS HELPPPPPPPPPP
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:
Which statement best explains the importance of enzymes lowering the activation energy necessary for reactions to take place?
a Reactions that require less energy to begin are able to occur more quickly.
b Reactions produce heat, causing the chemical bonds to become strong.
c Reactions are able to proceed slowly to maintain the metabolism of the cells.
d Reactions requiring less energy are able to produce less product.
Answer:
A
Explanation:
because a enzyme simply speeds up a reaction and only does that by pressure and stress not by doing chemical changes
The statement which best explains the importance of enzymes lowering the activation energy necessary for chemical reactions to take place is: A. Reactions that require less energy to begin are able to occur more quickly.
A chemical reaction can be defined as a chemical process which mainly involves the continuous transformation or rearrangement of the ionic, atomic or molecular structure of a chemical element through a break down and formation of chemical bonds, in order to produce a new chemical compound.
As a general rule, the activation energy of a chemical reaction must first of all be reached by its combining chemical elements (reactants) before it can start or begin.
An enzyme can be defined as a biological catalyst that is used to speed up (increase) or catalyze (accelerate) the rate of a chemical reaction, by lowering (decreasing) the activation energy of its constituent chemical elements (reactants).
Hence, a chemical reaction that only require less energy to begin (start) are able to occur more quickly before those that require high energy.
In conclusion, the activation energy of a chemical reaction should be lowered in order for it to occur or take place fast (quickly) enough over a short period of time.
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Giving brainliest :}
humans have 46 chromosomes. the sperm and egg cell carry 23. I don't know the answer to the second im only in 9th grade and everything I answer is from the top of my head SORRYYY
The femoral is ____
to the tarsals.
rregion to the tarsals
WILL MARK BRAINLIEST IF U PUT A PROPER ANSWER!!!! you find an interesting mineral, but have no idea what it is. Describe the steps that you would take to identify the mineral.
Answer:First I would ask any people that I know if they know about the mineral, if they say no then I will do resear on it until I figure out what it is
Explanation:
Which of the following correctly describes the chemical reaction for cellular respiration?
F Glucose is broken down into water, Il water is used to convert oxygen to carbon
carbon dioxide, and energy
dioxide
G Carbon dioxide and water combine in the J Carbon dioxide is absorbed and oxygen
presence of sunlight to produce glucose is released
and oxygen
Answer:
the first one
Explanation:
cellular respiration= glucose + oxygen --> energy + water + CO2
Explain the effect of activity on a heart rate
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
Which of the following is NOT true about DNA?
O It is made up of nucleotides
O It creates energy for the cell
It stores and processes information in the cell
O It makes up the genes which contain genetic material
All living organisms are made up of cells. Cells are the basic units of life. In complex living organisms, cells are organizer into tissues, tissues are organized into organs, and organs are organized into organ systems. What characteristic of life does this information represent?
Answer:
The organization of life
Explanation:
The organization of living things or life is a system of classifying living things in a hierarchical order or level from the simplest to the most complex based on structure and function. The simplest level is the cell while the most complex is the organism.
All living organisms are made up of cells. Cells are the basic units of life. In complex living organisms, cells are organized into tissues.
Tissues are a group of cells of the same kind. Tissues are organized into organs.
An Organ is a structure composed of one or more types of tissues that work together to perfume a specific function. Human organs include the brain, heart, skin, stomach, kidney, etc. Organs are organized into organ systems.
An Organ system is a group of organs that work together to perform a certain function. Examples of organ systems include the circulatory, skeletal, nervous, digestive and reproductive systems. Organ systems make up an organism.
An organism is an individual living thing that is made up of one or more organ systems. Examples are humans, plants, insects, etc
Answer:
Life can be arranged in a structural hierarchy.
Explanation:
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
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 :)
Why are flowers important to plants?
A.
They attract birds and insects to assist in pollination.
B.
They protect the reproductive parts of the flower.
C.
They are ornamental.
D.
They are a food source.
E.
They produce new flowers.
Answer:
The Answer I believe to be correct is A. They attract birds and insects to assist in pollination.
Explanation:
Answer:
a
Explanation:
i took the test
What type of cell is shown the image?
Answer: eukaryotic cells
Explanation:
The image shows a eukaryotic plant cell undergoing DNA replication and mitosis to produce daughter cells.
Eukaryotic cells, including plant cells, have a well-defined nucleus enclosed within a membrane, where the genetic material (DNA) is located.
DNA replication is the process of copying the cell's genetic information to ensure each daughter cell receives a complete set of chromosomes.
Mitosis is a form of cell division where the duplicated chromosomes are segregated into two identical daughter cells. This process is essential for growth, tissue repair, and asexual reproduction in plants and other eukaryotic organisms.
The daughter cells will be genetically identical to the parent cell, allowing for the propagation of the same genetic information and traits.
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Which feature do plants have that provide structure and form?
Answer:
Plants have a cell wall which gives the plant structure. The cell wall is made of cellulose.
Explanation:
Answer: plants have an internal skeleton of bones
Explanation:
What does the peak of the dotted line represent?
Can someone please help me . WIL MARK BRAINLIEST !!
Does diffusion require energy??!! (:
Answer:
no
Explanation:
i requires some form of ATP
What is the F2 generation? How do they differ from the F1 generation?
Answer:
F2 Generation is the Second Filial Generation
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
Can you explain what happens when a cloud forms?
Answer:
Clouds form as air warms up near the Earth's surface and rises. It is heated by sunlight and the ground heats the air just above it. That warmed air starts to rise because when warm it is lighter and less dense than the air around it. As it rises, its pressure and temperature drop causing water vapor to condense.
please help asap, will give brainliest
Answer:
C
Explanation:
Answer:
ItS C!
Explanation:
BtW U CuTe No HoMo.
Help me please ASAP!
Answer:
2&4 are correct
Explanation:
hope this will help
all you need is in the photo
Answer:
The number of small fish and crustaceans increased.
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:
__________
can someone PLZ help me on some QUESTIONS PLZ I AM BEGING FOR U
Mitosis Notes
Biology
Interphase
• DNA is _________________ (# of chromosomes doubles)
• DNA appears as ______________________ (chromatin) at the start, but change to __________________________ at the end of this phase.
Prophase
• __________________________ (cell begins to divide)
• ___________________ appear and begin to move to __________________ ________________________ of cell (only in animal cells)
• ____________________________ form between the poles (made of microtubules)
• ____________________________ starts to disappear
Metaphase
• ________________________ attach to the spindle fibers at the ________________ of the cell.
Anaphase
• ______________________________ when the ____________________________ and begin to move to opposite ends of the cell (spindle fiber ___________________).
Telophase
• ______________________________________
• Chromosomes appear as ________________________
• Spindle fibers _______________________ and disappear
Cytokinesis
• Cell membrane moves inward to create __________________________ - each with its own nucleus with __________________________
Control of the Cell Cycle
• Controlled by enzymes called _________________ and _____________________________ _______________________
1. ________________________________ (G1): decide whether the cell will divide
2. ________________________________ (G2): checks DNA replication
3. ________________________________ (M): triggers exit from mitosis
Cancer
• ___________________ division of cells
• Cancer cells ______________________________ to the body’s control mechanisms.
Apoptosis
• Programmed ______________________________
• Cells that are no longer _____________________
• _________________ fingers and toes
• __________________ cells
• _________________ leaves
Stem Cells
• _______________________ cells that can be programmed to develop into ________________________ cells
• ______________________ - 100-150 stem cells
• Adult stem cells – also called __________________ stem cells
Answer:
the firat one is 24 i think....
will it be a, b, c, or d ??
Answer:
its D I know it is plssss