Answer:
its the first onw if i remeber
Explanation:
easy
what can be known about this situation?
Which situation do u mean?
Explain the phenomenon you observe in the diagram. Provide as many details as possible to your explanation
Answer:
reflection
Explanation:
this is what is seen on the mirror
Which organelle in the table is correctly matched with its function?
lysosome
vacuole
mitochondrion
ribosome
Answer:
Ribosome
Explanation:
Ribosome produces proteins
1) What is the control group? 2) What is the experimental group? 3) What is the independent (manipulated) variable? 4) What is the dependent (responding) variable? 5) What should Tina's conclusion be?
Complete question:
Tina asks the question “Does caffeine increase the heart rate of an earthworm?” In Test 1, she measures the heart rate by looking at the earthworm under a microscopes, the earthworm has a heart rate of 50 bpm (beats per minute). In Test 2, she places a few drops of caffeine on the earthworm’s skin and measures the rate again. In this test, the heart rate is 68 bpm.
1) What is the control group?
2) What is the experimental group?
3) What is the independent (manipulated) variable?
4) What is the dependent (responding) variable?
5) What should Tina's conclusion be?
Answer:
Individuals from test 1Individuals from test 2CaffeineHeart rateTina´s hypothesis is correct. Caffeine increases the heart rate of an earthworm.Explanation:
During an experiment, data from an experimental group is compared with the data from a control group. Both groups are selected from the same pool or population, so they are identical in all aspects except for the independent variables.
The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment.
The experimental group is the one affected by the experimental procedure or treatment. The researcher voluntarily changes the independent variables in the experimental group to observe how they affect the group under study. These variables are kept constant in the control group, not influencing the results, while the experimental group receives the treatment. There can be several experimental groups.
Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter. Dependent variable: Refers to the variable, which response depends on any change in the independent variable. It represents a quantity of something which value depends on how the independent variable is modified. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually represented using the letter Y. Controlled variable: Refers to the variables that have no influence on the results. These variables do not affect the change in the dependent variable values.1) What is the control group?
Individuals from test 1 compose the control group. They are not affected by the treatment. Tina just uses them to measure the normal heart rate and to compare them with individuals from test 2.
2) What is the experimental group?
Individuals from Test 2 compose the experimental group. They are affected by the treatment. Tina drops caffeine on their skin to see how it affects the worms.
3) What is the independent (manipulated) variable?
Caffeine is the independent variable. Tina manipulates the number of drops she places on the worm´s skins.
4) What is the dependent (responding) variable?
Heart rate is the dependent variable. Tina evaluates how the heart rate changes in individuals with or without caffeine.
5) What should Tina's conclusion be?
Caffeine increases the heart rate of an earthworm. It changes from 50 to 68 bpm. Tina´s hypothesis is correct.
True or False
Insective plants are green but they eat insects.
Answer:
True
Explanation:
Insectivorous plants are green in colour even then they eat insects because of the fact that it contains chlorophyll in the leaf
Answer the next five questions based on the following information. You are studying a particular type of spider and have identified four traits that follow simple mendelian genetics. The B gene governs body color and black body color is dominant to brown. The D gene governs whether or not the spider is poisonous, and poisonous is dominant to non-poisonous. The E gene governs eye color and black eyes are dominant to red eyes. The H gene governs hair type and hairy is dominant to hairless. Indicate your answer numerically not alphabetically. For instance, answer "2" not "two." For each answer that is not a whole number, give your answer as a fraction reduced to the lowest possible whole numbers. For instance, 3/9 would be reduced to 1/3.
How many different types of gametes can be formed by a spider that has the genotype BbDdEeHH?
If you chose a single gamete at random from a spider that has the genotype BbDdEeHh, what is the probability that the gamete would have the genotype BdEh?
You mate a BbDDEeHh spider with a BbDdEEHh spider. What is the probability that one randomly chosen offspring will have the genotype BbDdEEHH?
Answer:
a. 81/256.
b. 9/256.
b. 9 / 256.
Explanation:
The given traits in the question follow the Mendelian character. The cross between the body color where B is responsible for black color and b is responsible for brown color is as follows: Bb × Bb results in the 3/4 black color ( BB, Bb, Bb) and 1/4 brown color progeny (bb). The cross between the poisonous and nonpoisonous trait where D is responsible for poisonous trait and d is responsible for nonpoisonous is as follows: Dd × Dd results in the 3/4 poisonous trait (DD, Dd, Dd) and 1/4 nonpoisonous (dd). The cross between the eye color where E is responsible for black color and e is responsible for red color is as follows: Ee × Ee results in the 3/4 black color ( EE, Ee, Ee) and 1/4 red color progeny (ee). The cross between the hair trait where H is responsible for hairy and h is responsible for hairless is as follows: Hh × Hh results in the 3/4 hairy (HH, Hh, Hh) and 1/4 hairless (hh).
a. The cross between BbDdEeHh spider with a BbDdEeHh spider results in the 3/4black body, 3/4 black eyes, 3/4, hairy, and 3/4 poisonous progeny. Their probability is 3/4× 3/4× 3/4× 3/4 = 81/ 256.
b. The cross between BbDdEeHh spider with a BbDdEeHh spider results in the 3/4black body, 3/4 black eyes 1/4 hairless, and 1/4 nonpoisonous progeny. Their probability is 3/4× 3/4×1/4 3/4×1/4 = 9/256.
Thus, the answer is a. 81/256.
10. Michelle and David have been dating for almost two years. One night they
decide to take it further than kissing. Michelle asks if he has a condom. He says
no and that he will just pull out before he ejaculates so she won't get pregnant.
This is a really good method to use if you do not have another contraceptive
available. *
True or false?
Label the lettered phases of the cell cycle according to the diagram in Figure. 1-1.
Figure 1-1
A =
B =
C =
D =
Answer:
Explanation:
A = G1 phase (Growth phase)
B = S phase ( Growth and DNA Synthesis)
C = G2 phase (Growth and final preparations for division)
D = Mitotic phase (Prophase, Metaphase, Anaphase, Telophase, and Cytokinesis)
What are the five fields of plant biology?
Please explain your answer !!
Thank you!
Answer:
Plant biochemistry.
Plant ecology.
Plant evolution.
Plant physiology.
Plant anatomy and morphology
What is the human female reproductive cycle regulated by?
hope this helps
Answer:
The menstrual cycle is regulated by hormones. Luteinizing hormone and follicle-stimulating hormone, which are produced by the pituitary gland, promote ovulation and stimulate the ovaries to produce estrogen and progesterone.
what are end-product of digestion of starch,proteins and fats.
Answer:
proteins - amino acids
fats - fatty acids and glycerol
starch - glucose
I hope this information was of any use to you.
Answer:
can you fart on my face
Explanation:
plz
the only phylum that shows active flight in invertebrates is
coelenterata
arthropoda
mollusca
echinodermata
Answer:
It would be arthropoda
Explanation:
Insects and arthropods are the only invertebrates able to fly since insects are not a part of your list arthropoda would be the answer. I hope this helps and if you can give me brainliest? :)
Why are amino acids called “amino acids?”
They are subunits of macromolecules that act as both strong acids and strong bases in solution.
They are single molecules that contain both an amine group and a carboxylic acid group.
They are acidic and were first discovered by a Russian researcher by the name of Aminov.
Answer:
The name “amino acid” is derived from the amino group and carboxyl-acid-group in their basic structure.
Explanation:
Mrs. Blakely's chemistry class is acting out chemical reactions on a dance
floor. The whole class gets on the dance floor and moves around like
molecules of air in a beaker. What could the students do to model a condition
that would decrease the rate of the reaction?
A. Have the people on the dance floor choose a partner.
B. Have more people get on the dance floor.
C. Have some people get off the dance floor.
D. Have the people on the dance floor move faster.
Answer:
it's either C or D
The students simulate a situation that might cause the reaction rate to decrease, such as having some people leave the dance floor while others move more quickly. So, the correct options are C and D.
What is Reaction rate?The pace at which a chemical reaction occurs is known as the rate of the reaction. It is proportional to the rise in product concentration per unit time and the fall in reactant concentration per unit time. Response times can differ wildly.
For instance, because it happens quickly, wood burning has a fast reaction rate, whereas iron rusting has a low rate of the reaction because it happens gradually.
For the aforementioned illustration, the students act out a scenario that can result in a slower reaction time, such as having some participants leave the dance floor whereas others move more swiftly.
Therefore, the correct options are C and D.
Learn more about Rate of reaction, here:
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A small number of birds arrive on an island from a neighboring larger island. About twice a year, one or two more birds from the neighboring island arrive. These new arrivals: Group of answer choices tend to speed up adaptation to new food plants speed up the process of speciation accelerate differentiation between the two populations tend to slow divergence of the two populations
Answer:
Hello. None of the answer options is correct, as the new arrivals delay adaptation to new food plants.
Explanation:
The arrival of new birds increases competition for food. This makes the birds that have just arrived have some difficulty in accessing food, as they will have to compete with the birds that are already on the island. This makes the novice birds look for food plants they already know, which delays their adaptation to feeding new plants they do not know.
(WILL MARK BRAINLESIEST PLEASE HELP!!!)
Select the correct answer.
A parallelogram has coordinates A(1, 1), B(5, 4), 07. 1), and D(3, -2). What are the coordinates of parallelogram A'B'C'D'after a 180° rotation
about the origin and a translation 5 units to the right and 1 unit down?
OA. A(-4,-2), B10,-5), C(2,-2), D (-2, 1)
OB. A[4,-2), B(0,-5), C(-2,-2), D12, 1)
OC. A(4,2), B(0,5), C(-2,2), D12, -1)
OD. A1-4, 2), B(0,5), C(2, 2), DI-2, -1)
Answer:
Click the attachment to see answer
PLEASE HELP ME WHATS THE ANSWER
Answer:
Oxidation of rocks (rusting)/Chemical weathering
Provide Three reasons why Nguni cows are referred to as excellent mother's
Explanation:
They are termed as "Excellent Mother" because of the following reasons:
They have long productive lives, cows will produce 10 or more calves calving regularly.
The cows show great efficiency and often wean calves that weigh 45-50% of their body mass.
Where does the emulsification of fat occur?
Answer:
The emulsification of fat occurs in the liver.
Which of the following is an example of a point source of population?
A. deforestation leads to soil erosion, which empties into a pond.
B. animal manure washed from a farm enters a stream.
C. an industrial waste pipe discharges water into lake.
D. storm water from street surfaces runs into river.
Which example of a food production method is sustainable?
A. Planting a monoculture crop over large areas of land
B. Using no-till farming practices to decrease erosion
C. Using enough pesticides to reduce bee populations
D. Irrigating soil until it becomes waterlogged
What is gigantism??
What is it caused by??
Answer: Gigantism is most commonly caused by a benign tumor on the pituitary gland called a pituitary adenoma. A number of disorders may also cause it, including neurofibromatosis.
Explanation:
McCune-Albright syndrome (MAS)
What is the function of histamine in inflammation
(Will mark as brainliest)
Answer:
Histamine increases the vasodilatation, and also increases the vascular permeability in the immediate transient phase of the acute inflammatory reaction. This histamine also acts as a chemical mediator in acute inflammation. The receptors of histamine is also involved in acute inflammatory reaction .
In the Punnett square, fill in the shaded boxes with the alleles of each parent. Use B for the
dominant allele (black fur) and b for the recessive allele (white fur). THIS ONE IS A SECOND ONE PLEASE HELP
Answer:
you gotta put the small "b" for the female and all the the box will be "Bb"
The dominant allele (black fur) has alleles B and b for the recessive allele (white fur), so the offspring will all have bodies with black fur.
What is phenotype?Phenotype is the physical appearance of characters which is the result of genes which express in the cell to give a particular trait in the diagram black is dominant over white so all the offspring show a black phenotype.
Male genotype: BB
Female genotype: bb
Cross: BB X bb
Gametes: B, B, b, b
All progeny will be black having genotype Bb, Bb, Bb, Bb.
The Cross is uploaded in the image below.
Genotype is the genetic appearance of the allele which shows the gene is responsible for a particular trait.
Therefore, the dominant allele (black fur) having allele B and b for the recessive allele is crossed, and all progeny will be black having genotype Bb, Bb, Bb, Bb.
Learn more about alleles, here:
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Write about the structure and the purpose of Fat or Lipids.
Answer:
A lipid is any of various organic compounds that are insoluble in water. They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers.
Based on this information, what type of transport is used for glucose in blood and intestinal cells?
Answer:
Facilitative glucose transporters (GLUTs)
These are responsible for the bidirectional transport of glucose in tissues and cells. This involvesusing facilitative diffusion to carry glucose down a concentration gradient, into the cell.
How did the evolution of photosynthetic prokaryotes affect the level of oxygen in the atmosphere?
Answer: effects of the evolution of photosynthesis. Photosynthetic organisms dramatically increased atmospheric oxygen levels between 2 and 2.5 billion years ago. This change created selective pressure favoring organisms that used oxygen to produce energy-containing molecules.
change the wording a little bit.
Explanation:
Carbon dioxide example?
Answer:
when you burn fuels like propane or wood, the creation of the burning produces things like water Carbon dioxide and other gasses.
Explanation:
burning fuels makes carbon dioxide, when we lite a campfire we release gasses and cause a chemical reaction with the air.
Answer:
when you burn fuels like propane or wood, the creation of the burning produces things like water Carbon dioxide and other gasses.
hope it helps
Question 8 of 10
Which question can be answered using the scientific process?
you need ot put the thing
Answer: Answer: Option D is the correct one. Science consists of methodsical activities that formulate hypotheses by using observations and experiments in order to address scientific questions.
Explanation:
I can't see the questions but i did this before sooo I may or may not be correct
what is the basic unit of matter?
Answer: Atoms constitute the fundamental units of matter, and are a constituent of each element. In large part, the mass of an atom is determined by its positively charged protons and neutral neutrons.
Explanation:
ya welcome BCHHHHHHHH
