Answer:
In the first step of meiosis I,
✔ DNA condenses to form chromosomes
In the second step,
✔ Each pair of chromosomes lines up in the center of the cell
In the third step,
✔ Pairs of chromosomes separate
In the final step of meiosis I,
✔ A nuclear membrane forms around chromosomes
Explanation:
the person above me is correct
How have humans affected the environment?
A white patch on the chest is recessive, notice both critters have a white patch. What are the odds that their offspring will have a white patch?
Answer:
It will have the white patch.
Explanation:
Since both parents have the recessive trait, the offspring will have the white patch.
"After scanning the green labeled areas and the red labeled areas, when we combine the two images, the spots that show up as yellow correspond to "
Answer:
... areas labeled both red and green.
Explanation:
The spots that show up as yellow correspond to areas labeled both red and green.
__
The effect of combining images will depend on the method used to create the combination. There are many possibilities when combining color images.
When mixing red and green light, yellow light is produced. When mixing red and green pigment, brown pigment is produced. When mixing digital representations of red and green, the effect depends on the individual representations, the method of mixing, and the interpretation of the mixed result.
__
Given the way the question is worded, we assume that yellow is produced by a combination of red and green appearing in the same area of the images. That is, ...
The spots that show up as yellow correspond to areas labeled both red and green.
Several types of ___________ live in our mouth and are part of a sticky substance called plaque. Improper brushing causes plaque build-up, or tartar, and will eventually cause tooth decay.
Answer:
Germs
Explanation:
Plague is a type of germ, therefore the word would best fit the blank
hope this helps :)
Jennie is driving her car on vacation. It is a 195 km drive from Jennie's house to her vacation spot. She takes 5 hours to get there.
What is Jennie's average speed?
A.
39 km/hr
B.
195 km/hr
C.
80 km/hr
D.
474 km/hr
Which are the major functions of the genetic material
Answer: usally genetic material is the "coding" for a organism. It tells the organism how to complete basic needs.
Explanation:
Which form of energy is directly related to the measure of the average kinetic energy of the particles in a substance?
othermal energy
O potential energy
O mechanical energy
O electromagnetic energy
Answer:
Thermal energy.
Explanation:
Hope this helps :)
explain the process (reflex action) that happens when you pull your arm away from an open flame. use steps to explain your answer. identify the receptor in the skin, the stimulus, the neurons,the effector(muscle) and the body's response to the stimulus.
Answer:
A reflex action is defined as an involuntary action of body in response to a stimulus, which protects the body from any harmful conditions including touching open flame.
A reflex action follows a sequence of action that helps in involuntary action, tha include the stimulus, receptor in the skin, the neurons (sensory, relay and motor neurons), the effector(muscle) and resposne of body to stimulus.
In the reflex action when a person pull his/her arm away from an open flame, the stimulus will be the hot flame that send a signal to the nervous system.
The sensory receptor found in the dermis or epidermis of skin called cutaneous receptors, senses the temperature change.
Then the sensory neuron comes in action which sends electrical impulses to a relay neuron (located in spinal cord) and relay neuron sends impulse to motor neuron.
Motor neuron sends that electrical impulses to a muscle which act as an effector which allows muscle to contracts to move hand away.
So, at the end the body resposnes to move hand aways from the open flame.
Meiosis reduces the chromosome number by
Answer:
i believe it's half and produces four gamete cells
Explanation:
40 point just answer it
Which type of reproduction involves the passing of characteristics to offspring? A. only sexual
B. only asexual
C. both sexual and asexual
D. neither sexual or asexual
Answer:
C. both sexual and asexual
Explanation:
In both cases, the parent(s) of the offspring pass down characteristics. Asexual reproduction makes a carbon copy of the parent so they would obviously have the parent's characteristics. Sexual reproduction passes down characteristics of both parents to the offspring.
e:
Scientists think the earth is approximately how old?
2 billion years
3 billion years
for 4 12 billion years
612 billion years
Scientists think the earth is approximately how old
Answer:
4 billion
Explanation:
Answer:
4 billion
Explanation:
4 billion
Therefore, the independent variable was the number of people who were_______ , and the dependent variable was the number of people who were _________.
Answer:
Immune to the disease.
Infected by the disease
Explanation:
Next question
Which factors remained constant in each trial? Check all that apply.
A.the total number of people
B.the series of people who exchanged liquids with each other
D.the number of exchanges
E.the number of individuals who were initially infected
how the structure of synapse ensures that impulses travel in one direction
Synapse
It carries information through electrical impulses to the cell body.
It is the gap between neurons.
It ensures that information travels in one direction only.
Explanation:
A synapse is the gap or the junction where two or more neurons or nerve cells meet together.
Also called the synaptic cleft, the synaptic gap receives the electrical signals and passes them through one nerve cell to another
The axon nerve endings release neurotransmitters which ensure that the path of transmission of impulses is only unidirectional – only from presynaptic to postsynaptic path.
The synaptic gap between a nerve cell and an effector muscle cell is referred as the neuromuscular junction.
Which word or phrase below is defined by the following:
A relationship between two organisms in which one organism hunts the other.
Consumer
Predation
Producer
Decomposer
Answer
Predator
Explanation:
Answer: Predation
Explanation:
In predation, one organism, the predator, kills and eats another organism. (Predators hunt)
Which did Kepler notice about planetary motion that caused him to propose Kepler’s first law of orbital motion?
Answer is the distance to the sun varies.
I do not understand it. Can you please explain? Thank you.
Answer:
He is saying that the distance to the sun affects the orbit.
Explanation:
(:
Answer:
the distance of the sun varies because the earth has an elliptical orbit same reason some months are longer.
Explanation:
When can natural selection lead to evolution in a population?
A. If the environment of the population is stable and provides
resources
B. If the individuals in the population have very little genetic variation
C. If the population has unequal numbers of parents and offspring
D. If the frequency of the alleles for a trait in the population changes
Answer:
D
Explanation:
process of elimination
we'd want limited resources, genetic variation and parent-offspring ratio doesn't matter
Answer:
It’s D
Explanation:
What is the danger of combining foods?
Answer:
There could be chemical reactions like indigestion, fermentation, putrefaction and gas formation and, if prolonged, can lead to toxemia and disease.
Explanation:
Answer:
Bad food combinations can lead to stomach ache, bloating, fatigue, gas, and discomfort. If you continue consuming the wrong food combinations for a long period, it can result in rashes, chronic digestion problems, and bad breath.
Explanation:
Plant species A cannot fight most fungal infections, while plant species B makes a protein that kills many fungi.
What is one possible way for humans to engineer species A plants that can produce the fungus-killing protein?
Answer:They can insert the gene for the protein from species B into a chromosome in species A.
Explanation:
The one possible way for human to engineer species should be that it should insert the gene for the protein.
What is fungal infections?It is known as the mycosis that represent the disease on the skin that should be caused by the fungus. There are various kind of species of fungi. It should be lived on dirt, on plants, or the surface on the household and even on the skin. It would leads into the rashes or bumps in the skin problem
Therefore, The one possible way for human to engineer species should be that it should insert the gene for the protein.
Learn more about fungal here: https://brainly.com/question/24859105
Match the correct word and definition.
Each word is used only one time so make the best choice for each.
made observations about the rocks, most changes on earth happen slowly,
so the earth must be very old. Used direct observation.
helped develop the principle of fossil correlation; developed a stratigraphic map of England and Wales.
specific groups of organisms have followed, or succeeded, one another in a definite sequence through Earth's history
the geological processes taking place on Earth today are the same as those of the past and can be used to explain past geological events
A. William Smith
B. James Hutton
C. Principle of Faunal Succession
D. Uniformitarianism
in order, they are:
b
a
c
d
Please help! Will mark branliest if you help!
Answer:
13.
a) Diploid parent cell
b) Consists of interphase, prophase, metaphase, anaphase and telophase
14.
a) Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells
b) Mitosis Results in two daughter cells and meiosis Results in four daughter cells
Explanation:
According to Kepler’s first law, what is the shape of a planet’s orbit around the Sun?
A.
circular
B.
polygonal
C.
elliptical
D.
random
Answer:
elliptical
Explanation: its almost an oval shape. idk why
Answer:
C
Explanation:
According to the information in the passage, before purchasing bird food for a bird feeder a person should
es )))
A)
plant trees and shrubs in the yard.
B)
purchase a birdbath and a birdhouse.
know what kinds of birds are common to the area.
D
create a bird-friendly environment in the backyard.
Answer:
1 is C) know what kinds of birds are common to the area.
2 is D) main idea and details
Explanation:
I had it on a test hope this helps
Answer: C
Explanation: Know what kinds of birds are common to the area
new biology question pls help
Answer:
it should be natural selection but im not too sure...
Explanation:
Answer:
The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Explanation:
Histones are 8 subunit proteins that cells use to pack DNA into the manageable condensed chromosomes you are used to seeing during mitosis or meiosis (functioning somewhat like hair rollers for DNA). Under normal circumstances, DNA binds TIGHTLY to histones. Given what you know about DNA structure, predict which amino acids are concentrated on the outer surface of histones that interacts with the backbone of DNA?
Answer: Arginine and Lysine
Explanation:
Histones are protein that packs DNA into nucleosomes. It compose of Arginine and Lysine amino acids.
Lysine and Arginine are basic amino acids that aids the solubility of Histone in water and also aids the interaction of DNA and Histones.
The amino acids that are concentrated on the outer surface of histones and interact with the backbone of DNA are ARGININE and LYSINE, which are positively charged (i.e., they are basic amino acids).
In eukaryotic cells, Deoxyribonucleic acid (DNA) is tightly packed by its interaction with histone proteins. A nucleosome is the functional and structural unit of eukaryotic chromatin, which is composed of an octamer of histone proteins (two subunits of H2A, H2B, H3 and H4 histone proteins) and approximately 147 base pairs of DNA.The phosphate backbone of the DNA double helix is negatively charged because phosphate bonds between phosphorous atoms and oxygen atoms have a negative charge.In consequence, the tight wrapping of DNA around histones is due to the attraction between the phosphate backbone of the DNA molecule and positively charged amino acids of histones.In conclusion, the amino acids that are concentrated on the outer surface of histones and interact with the backbone of DNA are ARGININE and LYSINE, which are positively charged (i.e., they are basic amino acids).
Learn more in:
https://brainly.com/question/24583927
100 POINTS. What is the difference between a learned behavior and an inherited behavior? Give one example of each. Please will mark brainliest.
Answer:
An Inherited behavior is a behavior received from the parents through genetics such as long legs for speed while a learned behavior is a behavior in wich an animal has to learn by itself by looking at past experiences such as baby ducks learning how there mother duck avoids danger.
Explanation:
Answer:
A learned behavior is more a behavior that is learned from experience of an organism. An example is imprinting, in which a young animal comes to recognize (another animal, person, or thing) as a parent or other object of habitual trust.
An inherited behavior is one that is innate, something that is bestowed upon an organism at birth. An example is animals starting to instinctually prepare for winter as the weather turns cold during the fall.
How does teaching the public about energy conservation help decrease alr
pollution?
A. It reduces the demand for electricity
B. It increases the supply of electricity
C. It increases the consumption of electricity
D. It reduces the cost of electricity,
It’s A btw
Answer:
I think you answered your question but if not A
Explanation:
All the other answers are just dumb
DNA and RNA are both important nucleic acids. They have similarities and differences structurally.
Use the Venn diagram to compare the two nucleic acids. Drag each characteristic to the correct location.
ITEM BANK: Move to Bottom
Deoxyribose sugarRibose sugarSugar, phosphate, nitrogen baseThroughout the cell
Answer:
Explanation:
Image result for DNA and RNA are both important nucleic acids. They have similarities and differences structurally.
The DNA and RNA Structures
They are both made up of monomers called nucleotides. ... The pairing of these bases is the same between these nucleic acids; namely guanine bonds with cytosine while adenine bonds with thymine, or with uracil in the case of RNA. Secondly, DNA is double-stranded while RNA is single stranded
Gradually you notice that the large chamber walls seem to be closing in. You hear a thundering boom, and the whole chamber vibrates as the valve slams shut above you. The cords, now rigid and strained, form a cage about you, and you feel extreme pressure. Obviously, the lower chambers of the heart are in a full-fledged _____5______. Then, high above on the right, the "roof" opens, and you are forced through another valve which has led you into a very large artery. As you are swept along in a huge artery(the largest artery in the body), the____6_____, you pass several branch-off points, but continue to careen (fall) along, straight down at a dizzying speed until you approach the artery feeding the small intestine. After entering this artery and passing through successively smaller and smaller subdivisions of it, you finally reach the smallest blood vessels the_____7_______. You watch with fascination as nutrient molecules move into the blood through the single layer of ______8______(look at power point notes) cells forming the capillary (blood vessel) wall. As you move forward and you begin to move superiorly (up) once again, you enter the huge_______9______, which returns blood from the lower part of the body to the_______10_______of the heart. From here, you move consecutively through the right chambers of the heart into the_______11______artery, which carries you to the _____12_____to get ______13______and then back to the left side of the heart again where you started
Answer:
5. diastole: cardiac relaxation mechanism
6 systole: cardiac contraction mechanism
7 pulmonary valve: valve containing regulation of pulmonary artery flow
8. aorta: main organism of the organism, has its birth in the left ventricle
How could injury to the excretory system affect the body’s ability to maintain homeostasis? Explain.
answer it first and ill make braniliest
Answer:
The excretory system maintains homeostasis (balance of body) within the body by expelling wastes. These waste products can assist in balancing electrolytes within the body. For example, you've got an overdose intake of medicines or vitamins, the kidneys and therefore the liver work together to be ready to metabolize the surplus meds.
Explanation:
At what ages are teeth the most accurate indicators of age of an unknown skelton? Justify your answer with an explanation.
(Forensics)
Answer:
The tibia completes growth at about age 16 or 17 in girls, and 18 or 19 in boys. For toddlers to teenagers up to age 21, teeth are the most accurate age indicators
Explanation:
