Answer:
Asegment of chromosomal DNA
Explanation:
A gene is a hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes. It is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person's unique physical features.
Answer:
A piece of a chromosome
Explanation:
A.P.E.X
Give two reasons why many people believe that artificial human cloning is not ethically acceptable.
Answer:
Probably because of the humans thoughts and character since they are all one of a kind.
Explanation:
Answer:
Every individual is different so thats my best guess.
1. In the kelp forest ecosystem, what type of consumer is the sea
urchin?
A. carnivore
B. decomposer
C. herbivore
D. scavenger
In the kelp forest ecosystem, The type of consumer is the sea urchin is a herbivore, as it is a primary consumer. The correct option is C.
What are sea urchins?Sea urchins are echinoderms. They are present under the sea. They are round or of different shapes, and they contain long spines on their body, these spines are poisonous.
Furthermore, they are carnivore animals, they eat anything that goes through them. They eat plankton small algae plants helps etc. Herbivores are those animals that eat plants only. In a kelp forest, sea urchins will be herbivores, otherwise, they are carnivore animals.
In a Kelp forest ecosystem, sea urchins are primary consumers, and they are herbivores, they eat lots of kelp in a day.
Thus, the correct option is C. herbivore.
To learn more about sea urchins, refer to the below link:
https://brainly.com/question/14812288
#SPJ2
Hi, Please help me label these Cells and DNA, THANKS will MARK BRAINLIEST AND 5 STARS
Answer: I'm willing to help but, I can't see the screenshot
Answer:
The top left box is NUCLEUS.
The second box (from left to right) is CHROMOSOME.
Regarding the 2 boxes left:
Top one is GENE.
The one below is DNA.
Evidence for sea-floor spreading has come from which option?
a. changes in the
depth of the ocean.
b. magnetic minerals
on the
ocean floor.
c. ancient climatic
conditions.
d. the breakup of
Pangaea.
HURRY PLEASE
Answer:
b. magnetic minerals
on the
ocean floor.
Explanation:
Trust me i'm smert.
what will happen if initiatives conserving forest does not exist
Answer:
it will lead to extinction of wildlife and also leads to erosion
Explanation:
Viruses are one of the leading causes of illness in the world
True
False
Answer:
True
Explanation:
Answer:
False, but be sure you read what follows.
Explanation:
False: Heart disease and Most Cancers are not viruses. Or at least as far as I know. However complicating the issue is the fact that after a viral infection, heart disease can develop.
Cancer is another example, and the answer again is not black and white. 16% of all cancers can trace their beginnings to a bacteria or virus. That leaves 84% whose beginnings are not that clear.
The question is not black and white. I'd be careful how you think of it. If something is a complication, is that a direct cause? I still think the answer is false, but don't be surprised if your instructor disagrees. Move on to something a little less black and white.
I'll give you a Brainliest for correct answer
Answer:
Nondisjunction causes it
......
you are provided with a mixture of iron filings, sand and sawdust.explain how u will separate each of these substance from the mixture
Plzzzz helpppp meere
Answer:
I may not be right but i believe the answer is c
Explanation:
How can you recognize the difference between a fatally poisonous scorpion and a scorpion that is not harmful to humans?
Answer:
its color, its skin pattern so 2 speak
Explanation:
Who knows how to do this
Answer:
B she tells "you that it hurts"
Explanation:
Answer:
i did this one already that her heart rate is fast
Explanation
Help please I’ll mark you Brainliest
Answer:
I believe you are supposed to be asking questions for this question
Explanation:
How do genes affect the live of the offspring?
How do the offspring inherit advantages?
Advantageous traits and genes?
In what ethnic group(s) is CF most common? ___________________________ How is CF inherited?
Answer:
Cystic fibrosis (CF) is more common in Caucasian individuals and is inherited with an autosomal recessive inheritance pattern.
Explanation:
Cystic fibrosis (CF) is a condition of genetic origin, which affects organs such as the lungs, pancreas, intestine and liver. CF is characterized by the production of very thick and viscous mucus, and promotes the formation of cysts and fibrosis of the affected organs.
CF is an inherited disease that is transmitted in an autosomal recessive pattern, that is, the altered gene is required to be on both chromosomes of the allelic pair, in order to be expressed.
It is a very common disease in Caucasian individuals, especially those of European descent.
ttaccgg taacgca cgcatgt tgaccta gccaatt
Answer: Uh okay then
Explanation:
Answer:
tacgagcatgcatgca
tgca gcta tagac tacg
what caused mass extinction in the past? what is causing mass extinction today?
Answer:
Although the best-known cause of a mass extinction is the asteroid impact that killed off the non-avian dinosaurs, in fact, volcanic activity seems to have wreaked much more havoc on Earth's biota. Volcanic activity is implicated in at least four mass extinctions, while an asteroid is a suspect in just one.
Explanation:
Answer:
The most likely cause of the Cretaceous mass extinction was an extraterrestrial impact in the Yucatán of modern-day Mexico, a massive volcanic eruption in the Deccan Province of modern-day west-central India, or both in combination.
Explanation:
Hope this helped
which level of organization is characterized by a group of cells that work together to perform a common function?
Answer:
Tissue
Explanation:
A group of cells that work together to perform a common function is called a tissue.
Hope this helps.
The correct answer is Tissue. :)
all the facts and observations gathered in an experiment are called A.conclusions B.Data C.theories D.hyposthesis
Answer:
data
Explanation:
All the facts and observations gathered in an experiment are called data. Therefore, option B is correct.
What is an experiment?An experiment is a technique used to confirm or deny a hypothesis, as well as assess the likelihood or effectiveness of something that has never been tried before. Experiments show what happens when a specific factor is modified, which sheds light on cause-and-effect relationships.
The three primary categories of scientific experiments are quasi-experimental, observational, and experimental (non-experimental). The most rigorous type of scientific investigation is experimental, often known as randomized control. The most control is present, as the name would imply.
Data are the facts and the observations gathered in an experiment. Therefore, option B is correct.
Learn more about an experiment, here:
https://brainly.com/question/30055326
#SPJ2
what happen in meiosis during telophase II
Answer:
the chromosomes reach opposite poles, cytokinesis occurs, the two cells produced by meiosis I divide to form four haploid daughter cells, and nuclear envelopes form.
-Micoevolution.net
Explanation:
Finally, during telophase II, the chromosomes are enclosed in nuclear membranes. Cytokinesis follows, dividing the cytoplasm of the two cells. At the conclusion of meiosis, there are four haploid daughter cells that go on to develop into either sperm or egg cells.
WILL MARK BRAINLIEST!!! Can someone help me wit des 3 compare and contrast questions?
1.) What characteristics apply to just prokaryotic cells?
2.) What characteristics do both cell types share? (Prokaryotic cells & Eukaryotic cells)
3.) What characteristics apply to just eukaryotic cells?
Prokaryotic cells have the following features: The genetic material (DNA) is localized to a region called the nucleoid which has no surrounding membrane. The cell contains large numbers of ribosomes that are used for protein synthesis. At the periphery of the cell is the plasma membrane.
Answer: 1.Prokaryotes lack an organized nucleus and other membrane-bound organelles. Prokaryotic DNA is found in a central part of the cell called the nucleoid. The cell wall of a prokaryote acts as an extra layer of protection, helps maintain cell shape, and prevents dehydration.
2.Prokaryotic cells are surrounded by a plasma membrane and have DNA, cytoplasm, and ribosomes, like eukaryotic cells. They also have cell walls and may have a cell capsule. Prokaryotes have a single large chromosome that is not surrounded by a nuclear membrane.
3.Eukaryotic cells are larger than prokaryotic cells and have a “true” nucleus, membrane-bound organelles, and rod-shaped chromosomes. The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes.
Explanation:
What is the difference between transpiration and diffusion
Answer:
In sunlight the concentration of water and oxygen molecules just inside the stomata is higher than the concentration of the air around the leaves so water vapor and oxygen diffuse, or move out, from the leaves through the stomata. Diffusion, then, is a physical driver of transpiration. Hope this helps!
Explanation:
Brainliest?
write any two disvantages of local units
Answer:
1.it will run only at that particular local place.
2.the people of other places would not be able to understand those units system
____allows some things to enter and leave cells, while keeping other things in the cell or keep other
things out of the cell.
A:fermentation
B:A selectively permeable membrane
C:metabolism
D:osmosis
Answer:
The cell membrane is the outer layer of the cell. The primary function of the cell membrane is to regulate what substances enter and leave the cell. The cell membrane is selectively permeable, or "semi-permeable", meaning that the membrane only allows certain substances to enter or leave the cel
Answer:
b
Explanation:
because the membrane of a cell is responsible for what enters n leave the cells.
it can't be "D" because osmosis is the process by which water molecules enter a permiable or semi permiable membrane of an object from an area of high concentration to an area of low concentration.
fermentation is the process by which chemical changes occur in an organic matter do the answer is definitely not A
metabolism is the chemical processes that occur in an organism to maintain its life so the answer is not c
Energy can move out of a cell.
True
O False
Some students used vinegar to dissolve away the shells of three eggs to
represent animal cells. The students observed the changes in the eggs
when they were placed in different solutions,
Which statement best describes the importance of the cell membrane?
a.) the cell membrane allows solutes to enter the cell,but not water
b.) the cell membrane removes solutes from the cell and into the environment
c.) the cell membrane allows the cell to maintain homeostasis
d.) the cell membrane is a protective barrier that prevents water from entering the cell
Answer:
d
can i have brainliest i need 1 more
Explanation:
When salt is applied to slugs, they immediately shrivel up and die. Use the vocabulary words below to explain why and how this happens.
diffusion, osmosis, membrane, concentration.
Answer:
osmosis
Explanation:
The process that occurs when a solution meets a permeable membrane.
Please select the word from the list that best fits the definition:
Question-
part of molten rock at mid-ocean ridges
Answers to choose from:
*sea-floor spreading
*continental drift
*magnetic reversal
*magnetic minerals
*fossils
Answer:
*magnetic reversal
*magnetic minerals
*fossils
*sea-floor spreading
Explanation:
so all are right EXCEPT *continental drift
Answer:
Sea Floor Spreading
Explanation:
i took the quiz on edge
Which correctly describes the role of histones in eukaryotic cell division?
a) Histones connect sister chromatids.
b) Histones protect the ends of chromosomes.
c) Histones keep the DNA compact and organized.
d) Histones copy the DNA before division begins.
Histones copy the DNA before division begins is the correct role of histones.
What is Histone?A chromosome's structural support is provided by a protein called a histone. Long DNA molecules found on each chromosome must fit into the cell nucleus.
To do it, the DNA wraps around complexes of histone proteins, giving the chromosome a more compact form. Additionally, histones are involved in the control of gene expression.
A nucleosome, which is made up of eight histone proteins, can exist. DNA can loop around a nucleosome much like a small spool. Thus, histones are crucial in maintaining the genome's order and neat wrapping inside a cell.
Therefore, Histones copy the DNA before division begins is the correct role of histones.
To learn more about histones, refer to the link:
https://brainly.com/question/13036208
#SPJ6
All the following are usually recessive traits in humans EXCEPT: Your answer: Dark hair Colorblindness Straight hair Left-handedness
Answer:
dark hair
Explanation:
What does evaporation change from ? Solid ———> liquid Liquid ———-> Solid What does condensation change from Liquid——-> solid Solid———> liquid
Answer:
Evaporation : Liquid --- Gas (Vapor) ; Condensation : Gas (Vapor) --- Liquid
Explanation:
Evaporation is the change of a liquid into gas or vapor, usually by increase in temperature. Eg : Water evaporation into vapors during water cycle, due to sun heat.
Condensation is the change of gas or vapor into liquid, usually by decrease in temperature. Eg : Vapors condensation into water droplets during water cycle, due to lower atmospheric temperature at higher height.
Please can you guys help I’ve been stuck on this for 10 mins
Answer:
Hi,
Red blood cells free in blood / not supported by other cells so cholesterol helps to maintain shape.
Hope this helps
