The answer is A. Design a classroom experiment as a first setup starts with an experiment.
Design of experiments, also known as randomized experiments, is characterized by two distinctive features: (i) the deliberate manipulation of treatment, or more generally, the independent variables of interest to the researcher, and (ii). Random assignment of units to treatment and control groups.
What is a mice trait experiment?Studies in mice allow mothers to pass traits to their offspring via bacterial DNA. Summary: A new study in mice has shown that the DNA of bacteria inhabiting the body can pass traits to offspring in a manner similar to that of the parents themselves.
Hence concluded that mice trait is to be performed first.
To know more about the mice experiment refer to the link :
https://brainly.com/question/3645462
PLEASE I NEED THIS I WILL MARK BRAINLIEST AND GIVE YOU 40 POINTS
Answer:
Fossil A!
Explanation:
Answer:
give the other guy brainliest
Explanation:
1. The term used for “living together” is...
A. ecology b. environmentarism C.Bymiosis
Answer:
You might mean Symbiosis
Explanation:
Please help me with this question about chromosomes
Answer:
The third one!
A group of mountain gorillas has 10 members. How big is the group after 4 females emigrate, 2 females immigrate, 2 gorillas are born, and a male dies?(1 point)
1
9
13
7
From the original number of 10 gorillas, there are now 9 gorillas in this population. The correct option is B. After 4 females emigrated, 2 immigrated, 2 gorillas were borned, and 1 male died, there are 9 gorilas.
Available data:10 gorillas in the original group4 females emigrate2 females immigrate2 gorillas are born1 gorilla dies.
So, from the original group, 4 individuals left, so
10 - 4 = 6 individuals
To the group of 6 gorillas, 2 individuals were added, so
6 + 2 = 8
In the group of 8 gorillas, 2 babies are borned,
8 + 2 = 10
And one individual died,
10 - 1 = 9.
The remaining number of individuals in this population is 9. Option B
You can learn more about additions and substractions at
https://brainly.com/question/2192776
Tattoos and piercings are not acquired characters. True or false?
Answer:
False
Explanation:
It's false because you weren't or couldn't have been born with a tattoo, so you acquired the trait instead of inherited it.
Answer:
True
Explanation:
You are not born with them so they are not aquired.
Pls help me 20 points for CORRECT answer
Answer:
Cactus (3) Producer
1st tropic level (1) Consumer
Eats dead organisms and further breaks them down (2) Decomposer
Dogs and Cats (4) Scavenger
I believe these are all correct after looking them up, if they are wrong please tell me and I can edit it if possible. If you would like explanations for any of them jlmk. Please mark BRAINLIEST if correct! Have a blessed day/night!
There is much controversy surrounding stem cells and the use of them. Do you think the use of stem cells is ethical? Why or why not?
Answer:
Explanation:
Ethical issues Historically, the use of stem cells in medical research has been controversial. This is because when the therapeutic use of stem cells first came to the public’s attention in the late 1990s, scientists were deriving human stem cells from embryos.
Two Changes that happen to your gas exchange system when you exercise regularly
Answer:
Hi hope this helps:
During exercise there's an increase in physical activity and muscle cells respire more
The heart rate increases during exercise.
The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.
As TSH levels fall, the thyroid gland slows down thyroxin secretion.
True or False
Answer:
I think s its True
Explanation:
What do low levels mean? Low TSH levels indicate hyperthyroidism. This is also known as an overactive thyroid. If the thyroid gland is secreting levels of hormones that are too high, the pituitary gland produces less TSH
hope it helps
The forearm of all of these
animals are considered
homologous structures. Why?
A. They develop from the same embryonic
tissue.
Human
Bird
B. They are the most important sets of
bones.
C. They have no current use.
D. These animals do not share a common
ancestor.
Answer: its A
Explanation:
They have no current use, because they were passed down from a common ancestor, homologous structures are those that are comparable in related organisms, hence option C is correct.
What is homologous structures?The descendants of these structures may or may not carry out the same purpose. Tetrapods' four limbs are an illustration of homologous features. All four limbs are present in birds, bats, mice, and crocodiles.
Bony fish such as sharks do not. Tetrapods evolved four limbs, and their descendants have carried on this trait.
As a result, the presence of four limbs is a homology. The upper arm of both humans and cats consists of just one bone, which we refer to as the humerus, and two forearm bones, the radius on the more medial side and the ulna on the more lateral side.
Therefore, option C is correct.
Learn more about homologous structures, here:
https://brainly.com/question/14138824
#SPJ2
Brayden and Gavin were playing touch football against Cole and Freddy. Touchdowns were worth 7 points. Brayden and Gavin scored 7 touchdowns. Cole and Freddy's team scored 9 touchdowns. How many more points did Cole and Freddy have than Brayden and Gavin?
Answer: 14 more points
Explanation: Good luck! :D
Brayden and Gavin scored 49 points in all
Cole and Freddy scored 63 points in all.
63 - 49 = 14
Is the Onion Cell a Eukaryote or Prokaryote?
Answer:
eukaryote
Explanation:
what 2 parts of a chlorplast does photosynthesis take place
Answer:
The Grana and The Stroma.
Explanation:
I hope this helps u! :D
Answer: Photosynthesis occurs in geranium and stroma parts of chloroplast.
Explanation:
Chloroplast is an organelle covered by double membrane. Inner membrane is folded inside to form lamellae. The lamellae are stacked one above the other to from geranium. There are many grana in a single chloroplast. The remaining matrix consisting of cytoplasm is termed stroma. In the stroma are present other cytoplasmic inclusions like fragments of DNA and ribosome, etc.
Photosynthesis occurs in 2 steps:
1. Hill's reaction or Light reaction: It occurs in presence of light in geranium part of chloroplast.
2. Dark reaction or Blackmann's reaction: It does not require light directly, occurring irrespective of presence or absence of light. However, it is dependent upon the end products of light reaction. it occurs in stroma part of chloroplast.
The answer may be supplemented by viewing the diagram of electron microscopic structure of chloroplast from any book one may have, covering photosynthesis.
Which of these is a way that global climate change is affecting human
health?
A. Increased levels of atmospheric carbon dioxide have caused
respiratory ailments.
B. Exposure to high concentrations of greenhouse gases increases
the risk of cancer.
C. Ocean acidification has polluted water sources and contributed to
illness.
O D. Increased frequency of heat waves has led to deaths from heat
stress.
Answer:
a
Explanation:
a
Answer:
D.) Increased frequency of heat waves has led to deaths from heat stress
In which structure would the egg need to be fertilized?
ovary
fallopian tube
uterus
vagina
Answer:
its the fallopian tube 100%
Explanation:
Can you forecast an earthquake? Explain why or why not.
Answer:No. Neither the USGS nor any other scientists have ever predicted a major earthquake. We do not know how, and we do not expect to know how any time in the foreseeable future. USGS scientists can only calculate the probability that a significant earthquake will occur in a specific area within a certain number of years.
Explanation:
How did tiktaalik provide evidence that amphibians evolved from fish?
Answer:
Tiktaalik fossils reveal how fish evolved into four-legged land animals. The report shows that the animal had a large, robust pelvic girdle, a prominent hip joint, and long hind fins. The powerful fins could have propelled the beast in the water, but also helped it walk on riverbeds, or scramble around on mudflats
7. Transcription is:
a. copying the code from DNA to RNA
b. making more DNA from DNA
Two plates moving towards each other are called convergent plates, like those shown below.
Which structures are likely to form at a convergent plate boundary?
A) rift valley
B) wave erosion
C) mountains
D) river canyons
plants are natures___________ conditioners
Answer:
air conditioners
Explanation:
Oxygen is always released from higher plants during photosynthesis
Explain where the energy in an ecosystem comes from and how it is distributed to all living things in that ecosystem.
Answer:
ummmmmmmmmm
Explanation:
What kind of adaption would you be most likely to see in these little moles that live underground? the ones are A. Wings B. Fins C. An adaption to keep dirt out of their eyes and D. None of the above please help
It is d none of the above..
What natural system purifies water?
A-carbon filtration
B-sewage treatment plant
C-particles precipitate out in oceans and lakes
D- the water cycle
Answer:
The water cycle
Explanation:
When water is evaporated whatever dirt or salt particles were in it do not get evaporated with it. So when it falls back to earth (as rain, snow, hail, ect.) it is technically pure, until something is added to it.
Answer:
The water cycle just had it on a quiz
Explanation:
HELP pls very time sensitive due today! Answer correctly please, anwser both questions with full sentences!:) dont put random anwser i will report you.
Answer:
Photosynthesis takes place in two stages, namely light-dependent reactions and light-independent reactions. Light-dependent reactions are also called light reactions and occur during the day time. Light-independent reaction is also called the dark reaction or the Calvin cycle.
IF YOUR GOOD AT SCIENCE PLS HELP ME OUT ILL Mark Brainliest:)
Answer:
arizona and california
It is California & Arizona!
ArizonaArizona gets huge amount of sunlight. That's why Arizona is burning in the summer. During the summertime in Arizona, It can reach as hot as 120°F! It also ranked as No. 1 in the All-Time Record Maximum Temperature by State! In Lake Havasu City, it reached 128 °F! Arizona is also known for having heatwaves. About 76 people died during one of Arizona's heatwaves in 2014.
CaliforniaCalifornia is another state that gets a lot of sunlight. Since California gets high amounts of sunlight, most hurricanes form by California and Arizona. In September 6, 2020 California had recent a heatwave that broke out in several locations in Southern California. It reached 121 °F (49 °C), and a woman died while hiking.
That's all! Thanks for asking this question!Identify the reactant(s) in the chemical reaction, CO2 + H2O → H2CO3.
a
CO2, H2O, and H2CO3
b
CO2 and H2O
c
CO2
d
H2CO3
Answer:
b. CO2 and H2O
Explanation:
Reactants are substances that undergo change during a reaction. They are on the left side of the arrow and turn into products (aka the right side).
plssssss help Im giving almost all my points
Answer:
Eastern Africa consists largely of plateaus and has most of the highest. ... The Western Rift Valley curves along the western borders of Uganda and Tanzania. ... Apparently established in the 9th century, it is distinguished for its seawalls of coral
hope this was helpful
Explanation:
Are ribosomes the food for a plant cell?
Answer:
All living cells contain ribosomes, tiny organelles composed of approximately 60 percent RNA and 40 percent protein
can i have brainlyest
Answer:
Ribosomes 1 teaspoon of round cake sprinkles
Explanation:
The number of chromosomes is DOUBLED after mitosis. True or False, AND explain.
PLEASE HELP IT'S DUE TODAY!!!!
Answer:
False
Explanation:
The number of chromosomes is doubled during mitosis, but each daughter cell (new cell) has the same number as the mother (original cell)
Mitosis is a cell division cycle in which the parent cell divides to produce equivalent daughter cells. It can occur in the body for growth, replacing dead cells etc.
The statement is False.
The sentence can be explained as:
Mitosis is a function of division in cells in which the two exact daughter cells are produced from the parent cell division of the nucleus and cytoplasm.The parent cells undergo the doubling of the hereditary content by the process of central dogma during the synthesis stage. The parent and daughter cell is diploid during this sort of cycle and does not get halved or duplicated at the end of the cycle.Therefore, chromosomes do not get doubled at the end of the division.
To learn more about mitosis follow the link:
https://brainly.com/question/17364997
Which two processes are most likely to contribute to global climate change?
Answer choices
A) Agriculture and mining
B ) Deforestation and fossil fuel burning
C ) Fossil fuel burning and agriculture
D ) Sedimentation and deforestation