13. What is macroevolution?
genetic changes among and within populations
minor changes in populations over a long time
changes in a population's allele frequencies
major changes in populations over a long time
Answer: Evolution is a process that results in changes in the genetic material of a population over time. ... Microevolution reflects changes in DNA sequences and allele frequencies within a species over time. These changes may be due to mutations, which can introduce new alleles into a population.
i need help please
i didn’t really understand but i put the text boxes in circles now , please help i’ll give brainlest!
Answer:
Explanation:everything looks good
Answer:
its converted transformed destoryed matter
Explanation:
How many moles are in 15 grams of Lithium?
2.16 grams
104.1 moles
2.16 moles
104.1 grams
How are the tongue, ears, and nose a part of the nervous system?
Answer:
Option A
Explanation:
Options:
A) They are sense organs that are part of the central nervous system.
B) They are sense organs that are part of the peripheral nervous system.
C) They are internal organs that are part of the central nervous system.
D) They are internal organs that are part of the peripheral nervous system.
The answer is option A or "they are sense organs that are part of the central nervous system." Remember that tongue, ears, and nose are all senses and that they are connected to the central nervous system so when you smell, taste, or hear something your nervous system sends a message to your brain about what it is. In a way it's the same as feeling pain, pain is inflicted on the body and then your nerves on where the pain is located send a message to your brain letting it know that it's hurting.
Hope this helps.
What substance kills Thrax (and most other pathogens)?
Answer:
Alcohol
Explanation:
The characteristic of life that represents birds migrating to the south is
Answer:
Living things respond to their enviorment.
Explanation:
Hope that helped!
I knew a woman who was a cop and had a taser man! she was stunning
Answer:
lol best cop pun i've herd yet
Explanation:
i told my friend 10 jokes to make him laugh, but unfortunately no pun in 10 did
What roles do DNA and chromosomes play in the coding of instructions for the inheritance of traits, or joe traits passed on parents to offspring?
Answer:
I really hope this helps
DNA is the vital for all living beings. even plants. it is important for inheritance, coding for proteins and the genetic instruction guide for life and its processes. DNA holds the instructions for an organisms or each cells development and reproduction and ultimately death.
Each chromosome consists of a single, very long DNA molecule, and each gene on the chromosome is a particular segment of that DNA. the instructions for forming species characteristics are carried in DNA.
In my science class we just got done learning this so it should be correct.
Can y’all help me figure out the other ones or can y’all correct my work if I messed up because I’m stuck.
Answer:
5. ee, attatched earlobes
8. Ee, free earlobes
Explanation:
Gita tested butter and bread with iodine solution. Which nutrient was she testing for?
Answer:
an iodine test for starch
She is testing for the presence of Starch.
The iodine test is a chemical reaction which checks for the presence of starch on food substances with the use of iodine solution (0.1 M potassium triiodide solution) as the reagent.
The procedure follows as
Add few grams of the crushed solid food sample or use a spatula to hold a piece of food sample (bread) Add about 3-5 drops of iodine solution to the sample Observe any color changes.1. If no change occurs that means the Iodine still remains brown then no starch is present
2. If a blue black coloration is formed, then presence of starch is confirmed.
See related answer here:https://brainly.com/question/23961023
In an _________, dots around an element's symbol indicate the number of valence electrons in an atom.
Answer:
Bohr Diagram
Explanation:
Is a Diagram where you put the element in the middle and rings with dots around the outside representing shells and the number of electrons. Almost always taught at middle school/High school.
Which of the following can occur because of the exchange of homologous chromosome parts during the process of meiosis?
Answer:
Muttation can occur during the exchange of genetic meterial from homologous chromosomes which may led to cause deseases in some cases.
Explanation:
Homologous chromosomes exchange genetic material during the process of meiosis.
What is Meiosis?Meiosis is a type of cell division in which germ cells present in the sexually-reproducing organisms produces the gametes, such as sperm or egg cells. It involves two rounds of division which results in four cells with only one copy of each chromosome.
These four cells are haploid in nature. Meiosis produces the sex cells or gametes like eggs in females and sperm in males.
Meiosis is divided into nine stages. These are divided between the first time the cell divides (meiosis I) and the second time it divides (meiosis II).
Thus, homologous chromosomes exchange genetic material during the process of meiosis.
Learn more about Meiosis, here:
https://brainly.com/question/29383386
#SPJ6
Which of the following is created from amino acids linking together?
A. Carbon chains
B. Lipids
C. Polypeptide chains
D. Monomers
Help please (the subject is science)
Answer:
Hi!
Epithelial cells (I believe) Nervous SystemSkeletal SystemExplanation:
Epithelial tissue helps cover your "exterior sources". Therefore I'm pretty sure the first one is Epithelial cells.The Nervous System has to do with sense of feeling or sense of touch mostly. The Nervous System controls everything you do! ex. touching a table uses the nervous system.The Skeletal System helps your body move and supports a lot of different things in your body. All of those other options are not correct just because they do not support. Here is what I mean in the shortest way possible:Circulatory- has to do with your lungsLymphatic- involves a network of vesselsExcretory- elimination of wasteTherefore these are your answers #1, #2, and #3.
Hope this helps!
A student observes that a popcorn kernel has a hard coat. He places the kernel in a moist paper towel and observes it for several days. He notices that the coat splits and a small root emerges. He concludes that—
water outside the seed coat exerted a pushing force, breaking the seed coat
air inside the seed coat exerted a pushing force, breaking the seed.
water outside the seed coat exerted a pulling force, breaking the seed coat.
gravity exerted a pulling force on the stem, breaking the seed coat.
Answer:
d
Explanation:
got it right on the test
What nucleus is the final product
Answer:
beta
Explanation:
What subatomic particle needs energy for it to become "excited" and
contribute to the chemical reactions of photosynthesis?
Answer:
The electron
Explanation:
The electron needs to be "excited" or have sufficient amount of energy to take part in reactions for covalent bonding, ionic bonding or metallic bonding.
first to help gets BRAINLIEST!!!!!!!!!!
Which occurrence would contradict the big bang theory?
A.
The percentage of carbon dioxide in Earth’s atmosphere increases.
B.
Scientists discover that 99% of the universe’s mass is hydrogen.
C.
A radio telescope detects microwave radiation in space.
D.
Distant galaxies move progressively farther away from Earth.
Answer:
D. Distant galaxies move progressively farther away from Earth.
I will give brainiest to who answer please fast
Answer:
i dont understand
Explanation:
its too complex i will edit my answer i you tell me more bout dis
which kind of electrical charge is found on a hydrogen atom of a polar water molcule?
Answer:
he two hydrogen atoms and one oxygen atom within water molecules (H2O) form polar covalent bonds. While there is no net charge to a water molecule, the polarity of water creates a slightly positive charge on hydrogen and a slightly negative charge on oxygen, contributing to water's properties of attraction
Explanation:
How does the internet amplify our existing attitudes?
well if it is that it causes a severe decline in grade with teens and it also makes the numbers for cases go up with younger kids because they are the main consumers in social media.
What is Social media?Social media refers to methods of communication where individuals produce, share, and/or exchange knowledge and concepts in online groups and networks. The primary accounts on are managed by the Office of Communications and Marketing.
For schools, departments, and offices wishing to establish or maintain an existing social media presence, we provide a variety of tools, including individualized consultations where we review social media goals and strategy and provide insights and ideas.
You must fill out the Account Request Form before opening any social media accounts. If your school has any rules or branding requirements, be sure to ask the communications office about them.
Therefore, well if it is that it causes a severe decline in grade with teens and it also makes the numbers for cases go up with younger kids because they are the main consumers in social media.
To learn more about Social media, refer to the link:
https://brainly.com/question/30326484
#SPJ2
ANSWER QUICK PLS I WILL GIVE BRAINLYIST
At what point should health officials have started to control the spread of Ebola in West Africa? It needs to be an essay.
Chromosome number is half of original cell is it mitosis or meiosis
Answer:
Meiosis
Explanation:
meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
Hellllpppp meeeeeeeeeee
Answer:
D.
Explanation:
Feel free to give brainliest.
Have a great day, Sleepy and Maisie. Same thing goes for everyone else.
How does water cause frost wedging?
A
Water attracts lightning, which breaks apart huge boulders into many smaller pieces.
B
Water carries sediment to large rocks, causing them to rub against each other.
C
Water freezes and thaws inside rock cracks, causing them to widen and then split.
D
Water slowly wears down a rock’s sharp edges, leaving behind a smooth surface.
Answer:
C. Water freezes and thaws inside rock cracks, causing them to widen and then split.
Explanation:
When water gets in the crack at the bottom and freezes, frost wedging occurs.
Frost wedging happens when water gets in crack, freezes, and expands. This process breaks rocks apart. When this process is repeated, cracks in rocks get bigger and bigger (see diagram below) and may fracture, or break, the rock.
Cellular respiration and photosynthesis form the basis of the __________.
Group of answer choices
A) water cycle
B) biomass
C) nitrogen cycle
D) carbon cycle
What is the function of the hydrogen ion concentration gradient?
Answer:
Notice the large difference in the number of hydrogen ions on the two sides of the membrane. This difference is a hydrogen ion, or proton, concentration gradient. The energy associated with this gradient is used to synthesize ATP from ADP and Pi. This occurs at the ATP synthase complex.
Explanation:
When a pinecone is open, it disperses its seeds. Based on your experiment, can you tell what weather conditions are needed for pine trees to release their seeds? Explain your answer.
Answer:
If a pine seed finds the right micro-climate, it will eventually sprout and a pine seedling will start to grow. However, pine seeds are usually released in a dormant state, which is most often broken by cold stratification. As a result, a pine seed will not sprout until the following spring when warm weather and some spring moisture are present.
Explanation:
hope it helps
Answer:
hi
Explanation:
Diabetes is a disease where the body is unable to produce enough insulin in the pancreas to help lower the levels of blood glucose.
Which two organelles are most responsible for producing insulin in the pancreas?
A)
nucleus and ribosome
B)
nucleus and mitochondria
C)
ribosome and mitochondria
D)
golgi apparatus and lysosome
Answer:
The answer is A.
Explanation:
because i had this test and got it wrong. its A.
Diabetes can be a very chronic disease if not properly controlled, it mostly affect the aged people. If not properly treated it can in some cases lead to the death of the individual.
Diabetes occurs when the pancreas in the body system does not produce any insulin, the insulin is a type of hormone that is found in the body, this hormone helps to normalize the amount of blood sugar that is present in the human body.
The two organelles in the pancreas that is responsible for the production of insulin in the body is; nucleus and ribosome
Please see the link blow for more information
https://brainly.com/question/10606367?referrer=searchResults
Discuss at least 3 ways that animals move.
Answer:
Walk, fly, and swim.
Explanation:
Please mark brainliest i'm only 2 away from getting a new rank. Thank you!
have a blessed day!
