Answer:
White blood cells (WBCs) are specialized to respond to antigen and produce antibodies as well as undergo phagocytosis in response to toxic stimuli.
WBCs are part of immune system and there are five different kinds with specialized features.
In order to make a cell model, it is best to use a muscle cell and a nerve cell or neuron: there are pronounced structural differences and those are present throughout animal kingdom.
Lower animals ( such as insects, worms etc. ) have different immune system, however, they do have typical neuron and a muscle cell/skin cell (fibroblast). Such cell models are likely to be easy, distinct and bring you good grades without going through much complication and confusions of various organ systems and animal mod
Explanation:
When the trading of equivalent sections of DNA between homologous chromosomes occurs during crossing over, it is called:
A. reciprocal exchange.
B. chromosomal exchange.
C. allele exchange.
D. similar crossing-over.
Answer:
chromosomal exchange i hope it helps you
At the end of meiosis, what do females make?
Answer:
Meiosis produces our sex cells or gametes. Females produce an egg. Males produce sperm
Explanation:
Answer:
at the end of meiosis, females take the xx chromosome equals to 23each
What animals belong to the subphylum cephalochordata?
Answer:
subphylum of cephalochordata are called lancelets
Where in the body does an artery carry deoxygenated blood in adult humans?
Answer:
Lungs
Explanation:
Since the blood is deoxygenated it will need to pick up oxygen which is done in the lungs
In guinea pigs, smooth coat (S) is dominant over rough coat (s). If an SS guinea pig is
crossed with an ss guinea pig, what ratio of guinea pigs in the offspring would you
predict?
100% would be dominant Ss if an SS guinea pig is crossed with an ss guinea pig.
What is a genotype?The whole complement of an organism's hereditary material is referred to as its genotype. An individual's alleles and variations that they carry in a specific gene or genetic region are also referred to as their genotype. Genotype is a term that may be used in both of these contexts.
The genetic make-up of an individual organism is referred to as its genotype. Your body's growth and development are guided by the information contained in your genotype, which acts like a set of instructions. When discussing the hereditary components of a certain characteristic, the term "genotype" is often used (like eye colour).
Therefore when you cross SS with ss the genotypes obtained are Ss, Ss, Ss and Ss.
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The diagram below shows fossils in three layers of rocks.
Which of these conclusions is most likely correct about the organisms found in the layers of rocks?
The organism in Layer A is more complex than the organism in Layer B.
The organism in Layer B is more complex than the organism in Layer C.
The organism in Layer C is a modern form of the organism in Layer B.
The organism in Layer A is a modern form of the organism in Layer B.
Answer:
The organism in Layer C is a modern form of the organism in Layer B.
Explanation:
Answer:c
Explanation:test
What does mitosis do that the cell would do wrong if it just split down the middle in cell division?
The area of the cell that is associated with the production of ribosomes is the:
1. nucleolus
2. nucleus
3. nuclear pores
Answer:
Nucleolus
Explanation:
This is a more technical answer. The Nucleolus is located inside the nucleus and this is the location where the ribosomes are produced. They then leave through the nuclear pores to be sent out into the cell.
The area of the cell that is linked with production of ribosomes is nucleolus. The correct option is 1.
What is nucleolus?The nucleolus is a circular shape within the nucleus of cells that produces and assembles the cell's ribosomes. Ribosomal RNA genes are also transcribed in the nucleolus.
The nucleolus has the most visible realm in the nucleus of a eukaryotic cell, and its basic task is ribosomal RNA (rRNA) melding and ribosome biogenesis.
The nucleolus, as the site of ribosome biogenesis, is critical to cell metabolic activity.
It is made up of ribosomal DNA (rDNA), which is found in tandem arrays in nucleolus event coordinator regions.
The nucleolus synthesizes ribosomal subunits from proteins and ribosomal RNA, or rRNA.
It then starts sending the subunits to the rest of the cell, where they join together to form complete ribosomes.
Thus, the correct option is 1.
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all you need is in the photo
ASAP
Answer:
D.)
Explanation:
Answer:
CCA
Explanation:
Manu planted a mango plant and found four whorls in the flower hence he termed it as dash flower
Answer:
Flowers that contain both an androecium and a gynoecium are called perfect, androgynous or hermaphrodites. There are two types of incomplete flowers: staminate flowers contain only an androecium, and carpellate flowers have only a gynoecium
Explanation:
Which animal has a bilaterally symmetrical body plan?
A jellyfish.
A lobster.
Coral.
Plz help me
what does igneous mean? (science terms)
what does metamorphic mean? (science terms)
what does extrusive mean (science terms)
plz help me
Answer:
Igneous- relating to, resulting from, or suggestive of the intrusion or extrusion of magma or volcanic activity
metamorphic- describes a specific process that some rocks undergo when heat and pressure changes them.
extrusive- rock refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff.
how do scientists provide solutions for many of the worlds problems?
A. through the use of politics
B. by having more conferences
C. through the use of technology
Answer:
C. Through the use of technology
Explanation:
hope this helps :)
describe how sugar is transported around a plant 6Marks
Answer:
Sugars move from “source” to “sink” ... Sugars produced in sources, such as leaves, need to be delivered to growing parts of the plant via the phloem in a process called translocation, or movement of sugar. The points of sugar delivery, such as roots, young shoots, and developing seeds, are called sinks.
Explanation:
u will get 10 out of 6
Answer:
i am not sure but i think the sugar canen makes the sugar
Explanation:
Blood picks up oxygen from the lungs from tiny sacs called (answer choices: Alveoli, Stomata, Villi, Cell Membrane) and transports it the cells where it enters the cell through the (answer choices: Alveoli, Stomata, Villi, Cell Membrane)
PLEASE HELP!!!
Answer:
Blood picks up oxygen from the lungs from tiny sacs called Alveoli and transports it the cells where it enters the cell through the Cell Membrane
Hope this helps! (:
reactants bind to enzymes at the what?
Answer:
Enzymes bring reactants together so they don't have to expend energy moving about until they collide at random. Enzymes bind both reactant molecules, called the substrate, tightly and specifically, at a site on the enzyme molecule called the active site
Explanation:
in what ways does the domestic cat appear to be adapted to where and how it lives?
Answer:
Over time the Cat gets used to it's surroundings and routines of the people around it, soon the cat adapts to these surroundings.
Explanation:
1. Which of the following is not a type of hypertrophy?
a. Sarcoplasmic
b. Sarcolemmic
C. Protein
d. Glycogenic
Answer:
it might be C
Explanation:
Which of these describes the overall chemical reaction of photosynthesis?
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2
Explanation:
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Which of the following nitrogen bases is present in RNA, but not in DNA?
A- U
B- C
C- G
D- A
pls pls pls help me The alleles that gives you dimples is dominant over the allele for no dimples.Would you expect their children to have dimples?Explain as fully as u can, using genetic diagrams to explain your answer.
Answer:
Cheek Dimples are a very common characteristic in people. One allele for the gene that codes for cheek dimples is given the symbol “D”. The other allele that codes for no dimples is given the symbol “d”. A person that has cheek dimples
Explanation: I what i learn
Please can I get some help on this? please?
1. If the ecosystem is balanced, which populations should be the largest? Which should be the smallest?
2. Why can the wolf be considered both a secondary consumer and a tertiary consumer?
3. If the original amount of energy found in the producer trophic level is 100 kcal how much is passed on to the primary consumer trophic level? How does this amount limit the number of members in the next higher level?
4. Analyze what would happen to this ecosystem if one of the primary consumers was removed from the ecosystem? What would happen if a new tertiary consumer such as a mountain lion came into the ecosystem? Describe how each level would be affected if each of these changes occurred.
Answer:
1. producers are the largest and consumers are the least
2. because wolves feed on both primary and secondary consumers
3. Only 10% of energy from each trophic level is passed on to the next; therefore, the energy passed to the primary consumer will be only 10 kcal.
4. disturbe,as we know that secondary consumers feed on primary consumers so if there is no primary consumers then all secondary consumers will die similarly all tertiary consumers will also die and life would be finish on the earth.
if a new tertiary consumer came into the ecosystem then it will create a problem as the number of primary and secondary consumer are same but the tertiary consumer are more so they will get less food and hence die
3 and 4 are help from others in brainly, good luck in your class
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Answer: C. To see and help the body respond to the environment.
Explanation: Good luck! :D
A strand of DNA consists of 35% adenine. What is the percentage of thymine in that same
molecule of DNA?
PLEASE HELP ITS A TEST
Answer:
Explanation:
The percentage of adenine will equal the percentage of thymine, and the percentage of cytosine will equal the percentage of guanine. Together, these percentages will add to 100%. We know that the sample is 35% adenine, which tells us that it is also 35% thymine.
Answer:
The percentage of thymine would also be 35%.
Explanation:
Hope this helps
Why is DNA analysis useful for classification
Answer:
Well, it helps us categorize organisms so we can more easily communicate biological information.
Explanation:
Based on the direction of the blood flow, through what type of blood vessel is blood flowing in the diagram? #19
Answer:
D) a vein
Explanation:
pls pls pls help!! i’ll give brainliest
Answer:
materials move against a concentration gradient
What would happen if Cyclin proteins did not function properly in the cell cycle?
Cyclin proteins are important in cell cycle progression; they partner with cyclin-dependent kinase enzymes to allow the cell cycle to progress. Without them, cell cycle progression would be hindered/stopped.
The situation when the cyclin proteins should not be function properly in the cell cycle because it is arrested.
What is Cyclin degradation?It is the key step that governs exit from mitosis and it should be progress into the coming cell cycle. It is equally vital with respect to the progression that arise from the cell cycle. In this, the particular enzymes should be split down cyclines at the particular time with respect to the cell cycle.
At the time when there is decrease in the cyclin levels so the CDK should not be inactive. Also, the cell cycle should be arrest at the time when the cyclines fail to degrade.
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Where do they take the cell sample from
Answer:
Cells and tissues are analyzed in the lab to look for cancer. Samples may be collected from body fluids (such as urine or blood) or from organs.
during DNA replication, what unzips the DNA ?
A.mutagens
B.RNA
C.chromosomes
D.proteins
Answer:
Proteins
Explanation:
Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.