Answer:
A single cell dividing by mitosis is an example of asexual reproduction--you now have two identical daughter cells (usually thought of as diploid 2n) from one single mother cell.
Meiosis is important to sexual reproduction, because through events like crossing over during prophase 1 (the swapping of genetic material between sister chromatids after a process of pairing called synapsis, the exchange sites are called chiasmus) and independent assortment during metaphase, meiosis creates the variation in genetic material that is potentially advantageous to sexually reproducing organisms and can potentially be acted upon by natural selection to drive the process of evolution.
Meiosis creates haploid gametes (n) that when joined together in fertilization create a genetic combination never having previously existed
Explanation:
can the need to protect the elephants environment be balanced with the need to protect the elephant
Answer:
there are times when your need to save elephant they balance life also so yes save elephants
Explanation:
2. Just as in humans, systems interact in plants to maintain homeostasis and accomplish the functions of transport, reproduction, and response. What are some examples of plant processes that involve an interaction between stems, roots, and leaves?
Answer:
osmosis
Explanation:
plants use osmosis whic is moving water though a semipermial membrane to draw up water. It moves from places of high conetartions of water (dirt) has to is less water (roots). When it does this the plant mains homeostasis by getting water up useing their xylem (tubes in stems) to the leaves.
Plants use osmosis which is moving water though a semipermial membrane to draw up water.
What do you mean by osmosis?Osmosis is the spontaneous net movement or diffusion of solvent molecules through a selectively-permeable membrane from a region of high water potential to a region of low water potential.
Osmosis is the movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration. Osmosis helps regulate the flow of water in and out of cells, which is crucial to their function.
The rate of osmosis always depends on the concentration of solute. The process is illustrated by comparing an environmental or external solution to the internal concentration found in the body.
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How does the mutation present in 10% of Europeans protect their cells from HIV?
Your right to safety means consumers have the right to a variety of competitive products in the marketplace.
Answer:
Yes i believe this is true
Explanation:
Which has a lower albedo, a black sheet of paper or a white sheet of paper?
Well let's see, the substance with the highest albedo value will absorb less light and will reflect most of the light falling on it. The substance having the lowest albedo will absorb most of the lights falling on it. A black sheet of paper will absorb most of the light falling on it, so this means that a black sheet of paper will have the lower albedo
Which of the following is NOT in part of the natural selection process?
A. a species produces more offspring than can survive
B. an organism adapts to their environment causing variation
C. individuals competing with each other
D. fossils being formed
Answer:
the selection that is not a natural selection process is D: fossils being formed
Answer:
D. Fossils being formed
Explanation:
In the natural selection process, the point is that the animal which is best adapted to the environment survives, so their offspring can survive and produce more offspring that adapts. This is because organisms need to adapt to their environment to survive. Without natural selection, most animals would be too weak to live in their own habitat.
So when we see the answer choices, we have to ask if the species could continue to live and adapt.
A- the species produces more offspring that can survive. Yes, the species can continue to live and adapt.
B- an organism adapts to their environment. Yes, the species can continue to live and adapt.
C- individuals competing with each other. Yes, the better species will win, and continue to live and adapt
D- fossils being formed. No, this has nothing to do with the process of living and adapting. It is in fact the opposite, since it relates to the species dying.
So the answer is D
Zaccharias Janssen was a scientist who studied properties of light and invented one of the first compound microscopes in the late 1500s. Which property did Janssen most likely believe about light during the time of his invention?
Answer:
Light bounces off surfaces property most likely believed by Janssen about light during the time of his invention
Explanation:
Zacharias Janssen is ascribed as a man to discover the compound microscope. Its purpose is to amplify diminutive things so characters can analyze them. There is a mirror attached under the microscope and when light bounces off the mirror it reaches through and nearby the specimen being viewed.
Some elements do not receive light. When a light wave is reflected off a facade, it proceeds back off at an angle similar that the wave beats the surface. Using these more innovative concepts about light enacted scientists to compose new inventions.
Answer:
Light bounces off surfaces
Explanation:
What is removing materials from a cell in vesicles called? *
A. osmosis
B. diffusion
C. endocytosis
D. exocytosis
Answer:
A
Explanation:
Removing materials from a cell in vesicles is called. osmosis.
Answer:
Exocytosis!!
Explanation:
I need help with this plz
Answer:
What
Explanation:
The jellyfish life cycle has several stages. During one of these stages, jellyfish reproduce asexually.
Which statement describes an advantage of asexual reproduction?
1.
Only one individual is needed to reproduce.
2.
Only beneficial traits are passed on to offspring.
3.
Two individuals contribute genes to the offspring.
4.
The genetic diversity of the population is increased.
Submit Answer
Answer:
1
Explanation:
Which best explains why the rate of a reaction decreases at significantly higher temperatures?
A. The activation energy increases.
B. The shape of the enzyme changes.
C. The enzyme-substrate complex forms.
D. The bonds between substrates are broken.
Answer:
B
Explanation:
At significantly higher temperatures, the rate of an enzyme-catalyzed reaction decreases because the shape of the enzyme changes at high temperatures. Enzymes are proteinous in nature, and as such, are generally sensitive to high temperatures.
They simply become denatured by high temperatures. In other words, they lose their original shape and their catalyzing abilities as the temperature gets progressively high during the course of reactions, thus, decreasing the rate of a reaction.
The correct option is, therefore, B.
1 point
What type of cells make up the stomata?
Epidermal cells
Smooth cells
Guard cells
O Xylem cells
what can the reader conclude about ecosystems based on the information of this passage
Answer: Ecosystems are so developing entities of biological communities
Explanation:
Lucas is carrying his rock collection into class. He carries 30 pounds of rare rocks 15 feet into Classroom 6. It takes him 3 minutes to get them into the classroom. What is Lucas's speed and how much work is done? Be sure to show your work with equations as part of your answer.
Answer:
450
Explanation:
You would multiply 30 by 15 then you will get your answer hope this helps
Answer:
work= 30 x 15
work= 450
foot pound
speed= distance/ time
speed= 15/3
speed= 5 ft per minute
In a multicellular organism, specialized cells have individual functions. What is the function of a nerve cell?
Answer:
Function are presented below:
Explanation:
for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.
how transcription makes mRNA?
PLS ANSWER I REALLY NEED TO PASS MY THIS CLASS
Answer:
yehhhhhhhhhhhhhhhhhhhhhhhhh
Explanation:
having an accurate model of an atom is important except
a) it can help give information on how atoms work
b) learning about atoms will help create better organisms
c) we use the model to learn about how to create new things
d) it can help support the explanation of the origin of the universe.
Which of the following statements about the types of RNA is NOT correct?
a. tRNA carries the amino acids to the ribosome
b. mRNA determines the order of the amino acids
c. rRNA makes up the ribosome
d. all of these are true
e. none of these are true
Answer:
D
Explanation:
A converging lens can be defined as ___
A) a lens that causes parallel light rays to bounce off the surface
B) a lens that causes parallel light rays to separate from each other
C) a lens that allows parallel light rays to pass without changing directions
And D) a lens that causes parallel light rays to focus at a specific location
Answer:
D) a lens that causes parallel light rays to focus at a specific location
Explanation:
Lexically, to CONVERGE means to MEET. Converging lens, also known as double convex lens is that which causes rays of parallel light to become focused at a point i.e meet at a specific location.
The parallel rays of light come from different direction but the converging lens is structurally suited to cause them to converge or focus at a point.
1. What phase of mitosis produces 2 daughter cells?
2. What is the name of the process that finally separates the daughter cells?
Answer:
1. Telephase
2. Cytokinesis
Explanation:
uhm, yeah. that's the answer.
GIVING BRAINLIEST AND THE REST OF MY POINTS!!!!!!!!
Which piece of observation would support your explanation that the chameleon use a physical characteristic adaptation to survive in its environment?
A) A change in skin color
B) An increase in number of eggs
C) Carrying eggs in their mouth
D) Living in large groups
Answer:
A Change its skin
Explanation:
the Chameleon changes it skin to intimidate predators or to blend into an enviroment. And since changing the color of your skin is physical its A!
Adaptations are the characteristical behavior and physical changes. A change in skin color is the physical adaptation of a chameleon to survive in the environment. Thus, option A is correct.
What is adaptation?
Adaptations are the modifications and transformations a species adapts over time in their physical appearances in response to the stimuli that allow them to survive in the surroundings.
Physical adaptation includes the structural change in the shape, the color of the body, fur, and thickness and thinness of the body fur. A change in the skin color of a chameleon allows it to blend into its environment hence, protecting it from predators.
Therefore, the change in the skin color of a chameleon is a physical adaptation.
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What kind of conditions pushed c4 plants to adapt in order to allow them to undergo photosynthesis
answer:
C4 plant has adapted to photorespiration by modifing the calvin-benson cycle.
What would you need to do to your model to make it look like a true DNA molecule?
If a couple has four daughters the % chance of their next child being a daughter is
Answer:
50% chance
Explanation:
Humans have two sex chromosomes, the X chromosome and the Y chromosome. Males inherit both X and a Y chromosome, while females inherit two X chromosomes. Thus, the sex of the child is determined by the sex chromosome carried by the male gamete (i.e., X or Y chromosome) which fuses with the egg cell (always containing an X chromosome). In consequence, the chance of having a sperm containing an X chromosome (i.e., the chance of having a girl) is an independent event of previous fertilization events (which led to the formation of 4 different female zygotes), thereby the probability will be 50%.
How many chromosomes foes the nucleus of egg-making cell contain?
Answer:
23
Explanation:
Healthy humans have 46 chromosomes, 23 from the sperm and 23 from the egg. An embryo with the wrong number of chromosomes is usually miscarried, or develops disorders such as Down's syndrome, which is caused by an extra copy of chromosome 21
Which organism would require cell differentiation?
O amoeba
O bacteria
cactus
O euglena
Answer:
bacteria
Explanation:
for such unicellular organisms like bacteria, various life functions occur witha single life
What are FOUR specific things you would consider if you were
scientifically choosing a house to buy (instead of emotionally)?
What is one example of how it takes energy for motion to occur?
Answer:
Lets say you are running in P.E. If you run for to long you get tired. When you are tired you run out of energy and cant run anymore.
Explanation:
Take example for fan
You give electrical energyThat energy gets used by fanThen fan runs and creates a motionThere can be further more examples like pumps,heaters ,AC
Which is the most specific group? *
A. Genus
B. Family
C. Order
D. Phylum
Answer: genus
Explanation:
Why do geologists think Earth's core contains mostly iron?
A. The crust contains a mixture of iron and silicon.
B. The crust contains no nickel.
C. Other orbiting bodies contain more iron than Earth's crust does.
O D. The moon's crust contains far less iron than Earth's crust.
Answer:
It should be D
Explanation:
I hope this helps! Let me know if I am wrong.
The geologists think Earth's core contains mostly iron is to be considered as the option c. Other orbiting bodies.
Reason for thinking of geologists:Here the thinking should be earth core that comprises iron since the earth should contain the powerful magnetic field that is due to the molten iron in the core.
Also, there should be constant movement leads to the electrical current.
hence, the option c is correct.
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