Answer:
c 4genetically similar cells
prokaryotic cells have a single circular chromosome and a defined nucleus? true or false?
Answer:
False, it lacks a defined nucleus.
Explanation: By definition, prokaryotes lack a membrane-bound nucleus to hold their chromosomes. Prokaryotes generally have a single circular chromosome that occupies a region of the cytoplasm called a nucleoid. They also may contain small rings of double-stranded extra-chromosomal DNA called plasmids.
Answer:
False
Explanation:
Prokaryotic cells don't have a nucleus, they have a nucleoid region
2. Your teacher instructed you to measure the salinity of brine you will use in
curing fish. Which of these will you do?
a.
Recall and master the procedure in using a salinometer
b. Review and master the procedure in using the thermometer
c. Review the procedure in using a psychrometer
d. Review the procedure in using a refractometer
Answer:
a. Recall and master the procedure in using a salinometer
Explanation:
Salinometer, which is also known as salimeter is a laboratory equipment used to measure the salinity of a solution. Salinity refers to the concentration/amount of salt in a solution.
According to this question, a student was instructed by his/her teacher to measure the salinity of brine used in curing fish. This means that to do this, the student will have to make use of a SALINOMETER. In order to use the salinometer, the student has to recall and master the procedure in using a salinometer.
Match each term with its best definition.
Plutons, Sills, Injection, D*kes
Check the comments for the answer.
Answer:
hey u blocked me pliz unblock me yer
Explanation:
Answer:
across existing rock.
Which organism is an example of a club fungus?
Answer:
Mushroom is an example of club fungus
Explanation:
hope it helps, have a great day!
Explanation:
the division of fungi known as the club fungi, basidiomycota. mushroom, puffballs, and shelf fungi are all members of the group, as are the plants rust and smuts. hope it helps
How does the nucleus control which proteins are made by the ribosomes?
1. It controls which genes get used.
2. It controls the number of ribosomes.
3. It controls the speed with which proteins are made.
4. It controls the order in which proteins are made.
Answer: it controls genes that get used.
Explanation:
A population of lizards lived in an ecosystem that was prone to flooding. After many generations, most of the lizards in the population had
longer legs than their ancestors, which helped them flee from floods. Which statement best explains this change?
A: the lizard genes spontaneously mutated to address the flooding threat
B: Genetic variation among lizard limbs allowed for natural selection to occur
C: The limbs were artificially selected because humans probably caused the flooding
D: The lizards with longer limbs cloned themselves, ensuring survival of the species
ILL MARK BRAINIEST PLS HELP
Answer:
B
Explanation:
Adaption occurs though natural selection and genetic variation
2 When molecules are spread evenly across the cell ________ membrane,
is reached.
a equilibrium
b. difference
C. solution
d. transportation
Answer:
The answer is A. Equilibrium
Explanation: And I know it's a Equilibrium because I got it right the the quiz hopes this helps :) mark brianlest pls
GIVING BRAINLIEST AND THE REST OF MY POINTS!!!!! :D
Two parts of the food chain are described below:
Part #1: These organisms are the ending of the food chain.
Part #2: This passes energy to plants and animals.
Which statement is true about these two parts of the food chain?
A) Part 1 are consumers, Part 2 is the sun
B) Part 1 are consumers, Part 2 are producers
C) Part 1 are producers, Part 2 is the sun
D) Part 1 are producers, Part 2 are consumers
(DONT ADD ANY LINKS)
The correct statement is B) Part 1 are consumers, Part 2 are producers.
What are the two parts of food chain?Part 1 of the food chain describes organisms that are the end of the food chain, which would typically be consumers or animals that feed on other organisms, including plants and other animals.
Part 2 of the food chain refers to something that passes energy to plants and animals. This is typically the sun, which provides energy through photosynthesis to producers, or plants, that convert light energy into chemical energy stored in food. Producers form the base of the food chain, providing energy to all other organisms in the ecosystem through the food they produce.
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HELPPPPPPPPPPPPP!!!
Answer:
i think the answer is the one you clicked on, the first answer.
Explanation:
A mutation is least likely to affect a cell when the mutation --
A mutation is least likely to affect a cell when the mutation is silent in nature or is not associated with an exon, it is least likely to affect a cell. Any mutation that happens to the introns does not affect the cell's function.
What is the function of cells and mutation?As genetic materials, nucleic acids encode information about the cell's structure and function, its proteins, receptors, and so on. The mRNA that is formed from the gene has roles in the formation of the receptor, the enzymes, etc., so if any mutation happens to the gene that is in the coding region, then it can show its impact, but if the mutation is of the silent type, then it has no impact on the cell.
Hence, when a mutation is silent in nature or is not associated with an exon, it is least likely to affect a cell. Any mutation that happens to the introns does not affect the cell's function.
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Usable fresh surface water is relatively scarce. To many people, streams and lakes are the most visible part of the water cycle. Not only do they supply the human population, animals, and plants with the freshwater they need to survive, but they are great places for people to have fun.
Answer:
True.
Explanation:
Usable fresh surface water is scarce. Freshwater is not in excess on our planet. We can find it on lakes, lagoons, rivers, and swamps, but it is only 3% of the totality of Earth's water. The importance of this water is that it is the one that is suitable for humans, a large number of plants, and animals. This is why there are different methods to store and distribute fresh water amongst all the population and places that need it. Besides, the places where freshwater is, are great for activities, such as swimming, sailing, rafting, diving, fishing, etc.
Since freshwater is scarce and has so many uses, we must take care of it.
How are humans circulatory system similar and different to other animals
Answer:
Humans have a heart with two atria and two ventricles that pushes blood in one direction. Some animals have hearts similar to humans but, other animals have only one atrium and one ventricle or a cardiovascular system that can push blood in two directions.
Humans circulatory system is similar due to presence of artrium and ventricles and different to other animals due to number of heart chambers.
How human circulatory system similar and different to other animals?Humans have a heart with two atria and two ventricles that prevents bactward flow of blood. Some animals have hearts similar to humans but, other animals have only one atrium and one ventricle that can push blood in two directions.
So we can conclude that Humans circulatory system is similar due to presence of artrium and ventricles and different to other animals due to number of heart chambers.
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A fruit fly somatic cell contains 8 chromosomes. How many chromosomes will each fruit fly gamete contain?
Answer:
The somatic cells of fruit flies contain eight chromosomes, which means they have two sets of four chromosomes. Meiosis is the process by which sex cells are produced. Sex cells are haploid, which means they have one set of chromosomes.
Explanation:
Fruit flies have two sets of four chromosomes because their somatic cells have eight chromosomes. The process through which sex cells are created is called meiosis. The haploid nature of sexual cells means that they only have one set of chromosomes.
What is Meiosis?In sexually reproducing organisms, meiosis is a unique type of cell division of spermatids that results in the production of gametes, such as sperm or egg cells. Two rounds of division are necessary, and the end product is four cells with just one duplicate of each chromosome.
When the chromosome count in daughter cells is decreased to half that of the parent cell during meiosis, the process is known as reduction division. For instance, while a human cell has 46 chromosomes, the egg and sperm cells created by meiotic division only have 23. In the above given example, fruit flies have two sets of four chromosomes as their somatic cells have eight chromosomes.
Thus, fruit flies have two sets of four chromosomes because their somatic cells have eight chromosomes.
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What is competition? Give example
Answer:
Competition is a relationship between organisms that strive for the same resources in the same place. ... Intraspecific competition occurs between members of the same species. For example, two male birds of the same species might compete for mates in the same area.
Hope it helps!!!
Suppose if all the bones of the skull (facial bones) are fused together, which function would you not be able to carry out?
Answer:
to masticate food
Explanation:
In adults, all the bones of the skull, except one, are fused together by immovable joints referred to as sutures. The sutures are fibrous joints which hold the bones of the skull together to form a rigid and strong structure that protects the brain. Skull bones fuse around two-years (18 to 24 months after birth). The only skull bone that is not fused by sutures in adults is the mandible, which is used to masticate food.
Y red ballonls and m green ballons were divided evenly amoung three kids. How many ballons did each kid get
Answer:
Each kids will get Y red balloons + M green ballons ÷ 3.
Explanation:
This is because Y red balloons and green red balloons are the total number of balloons present.
The total number of ballons are Y red+M green ballons.
The total number of kids are 3.
Therefore each kids with get the addition of the ballons divided by 3.
Therefore, Y red ballons + M green ballons ÷ 3.
Please help ASAP!!!! 15 points
Answer:
2= cytoplasm
1= cell membrane
3= DNA
Explanation:
That all i know
4. Which organ system in humans is most directly involved in the
transport of oxygen?
excretory
nervous
circulatory
O digestive
Answer:
C. Circulatory System
Explanation:
The circulatory system (cardiovascular system or the vascular system) is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
Blood Types;
A man with type O marries a woman with type AB.
Several children were born.
1. What is the genotype of the man?
2. What is the genotype of the woman?
3. True or false? the mother of the man had type AB blood.
4. Could the mother of the woman have type O blood?
5. what fraction of offspring would have type B blood?
6. what fraction of the children would have type AB blood?
7.Could this couple have a child with type O blood?
Please answer all parts of the question!
3. Any spread of particles from area of high concentration to area of lower 1 point
concentration. This question has more than one answer. *
Diffusion
Active Transport
Osmosis
U Phagocytosis
Passive Transport
Facilitated Diffusion
Pinocytosis
Receptor-Mediated endocytosis
Exocytosis
Answer:
Diffusion
Osmosis
Passive transport
2 ways to change the rate of a chemical reaction
Answer:
Increase the concentration of a reactant.
Increase the temperature of the reactants.