Answer:
a) 22
Explanation:
Cardiogenesis which is the formation of the heart begins by day 21. The heart begins to form as paired tubes. By days 22 - 23 of embryonic development, the heart begins to beat. This represents the formation of the first vital organ of the body and it also causes the formation of left-right asymmetry of the body.
The days are counted from the day of the last menstrual period.
What are index fossils and how can they be used to help find the relative age of the rock layers?
Answer:
Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period.
Suppose you created a set of Instruments using water and drinking glasses. You need a note with a very low pitch to complete a certain song-what should you do? Pour out some of the water in the glass with the most water. Add more water to the glass with the most water. Pour out some of the water in the glass with the least water. Add more water to the glass with the least water.
Answer:
Add more water to the glass with the most water.
Explanation:
The glasses with more water have lower pitches and the glasses with less water have higher pitches. To create a lower pitch you need to add more water to the glass with the most water. If there is no room to add water, you need a larger glass!
aerial roots are present in:-
a) all aquatic plants
b) all Terrestrial plants
c) mangrove plants
d) none of the above
Answer:
c) mangrove plants l thinkWhat is the complementary DNA strand for the DNA sequence TAC CCG ATA
CCT GTT CTA ATC?*
Answer:
. TRANSCRIPCIÓN: Cuando en la secuencia de ADN aparece una C, las ... de ADN, el ARN que se sintetice será una molécula complementaria ... (proteínas), uniéndose a una región cercana al sitio de inicio: TAC. ... partir de la cual debes completar la hebra complementaria, el ARNm, ...
Explanation:
What waste products are formed by the two main types of fermentation?
1. glucose and carbon dioxide
2. ATP and Water
3. lactic acid and ethanol
4. carbon dioxide and water
Answer:
Option-3Hope it helps youWhat agent of deposition is this? Gravity,wind, waves, running water or glaciers.
Answer:
that's water since u can see the cracks in the rock that was formed when frozen running water thawed, which then break the rock.
Can someone answer this
Answer:
D. Adenine and Thymine form hydrogen bonds, while cytosine and guanine form covalent bonds.
Explanation:
I majored in Biology
Arrange
1. AVWE CUFINTINO
2. IFDUFES
3.TONRELCE DOLCU
4.BOTIRAL
5.ZUMATALTH
Answer:
1. WAVE FUNCTION
2. DIFFUSE
3. UNCOLLECTED
4. ORBITAL
5. HAZMAT
Explanation:
Answer:
1.Wave function
2.Diffuse
3.Uncollectored(not sure)
4.Orbital
5.matazulth(not sure)
Explanation:
What are the reactants and products of photosynthesis?
Reactants:
Products:
Answer:
sunlight, carbon dioxide and water as starting reactants
Explanation:
Answer:
Reactants; CO₂, H₂O
Products; O₂, Glucose
A populationof arctic hares burrows into the snow for shelter. It is found that the hares on the smaller side are able to burrow between rocks, as well, providing extra protection from predators. Over time, the hare populaiton becomes smaller in size, shifting the normal distribution curve for hare size.
A. Directional Selection
B. Stabilizing Selection
C. Disruptive Selection
What would happen to the water cycle if the sun ceased to exist?
O The water cycle would slow down.
The water cycle would stop.
The water cycle would speed up.
O The water cycle would stay the same.
Answer:
it would stop
Explanation:
since the sun is there to help evaporate the water. and i'm sure that without the sun, the water cycle would be the least of your worries
1. What is the scientific method? Is there just one universal scientific method? Why or why not?
Answer:
There is no such unique standard method—scientific progress requires many methods—but students in introductory science courses are taught that `The Scientific Method' is a straightforward procedure, involving testing hypotheses derived from theories in order to test those theories.
Explanation:
There is not a specific method. There are either 20 or 30 different ways you can do it.. I believe.
Make an observation, ask a question, form a hypothesis, make a prediction based on the hypothesis, test the prediction, make a new hypothesis based on the results.
Hope this helps... Have a great day :D
Never wash out a vile that you're not familiar with.
True
False
Answer:
False, wash it out anyways, b/c there could be some dangerous chemicals or something in there that was used before you.... :)
Explanation:
Answer:
False, always wash it out.
Explanation:
4. When water moves from liquid form in a lake to vapor
form in the air, it:
Answer:
Turns into a gas? Not much context to work off of. I don't know what is exactly being asked.
Explanation:
Compare and contrast a Keystone Species with a Keystone Predator
NEED ANSWER ASAP
A keystone species is one that has a disproportionate impact on its ecosystem when compared to its abundance. A foundation species is usually a primary producer that dominates an ecosystem in abundance and influence.
SIGN SPINNER-Looking for a colorful individual to spin signs and attract customers. Can't be afraid of bees.
Answer:
The person you are seeking is Castiel
Explanation:
1. Is water a solution? Justify your answer.
Answer:
Believe it or not, water is the answer! Water slowly dissolves rocks and other things. Especially certain types of rocks such as limestone. When rocks or other substances dissolve in water, they form a solution
Explanation:
1. What are 5 fetures of a car that are important to you.
2. What are 5 things important for safty for a car.
Answer:
1. What are 5 *features of a car that are important to you.
Heated Seats
Backup Camera / Parking Sensors
Bluetooth Connectivity
Plugs and Outlets
Adjustable Seating and Steering
2. What are 5 things important for *safety for a car.
Airbags
Antilock Brakes
Electronic Stability Control
Adaptive Headlights
Traction Control
Explanation:
What is the definition for Allele?
Explanation:
One of a number of alternative forms of the same gene occupying a given position, or locus, on a chromosome is allele.
Explanation:
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome
Which of the following occurs in meiosis but not in mitosis?
Group of answer choices
Chromosomes coil and condense
Spindle fibers form across the cell
Pairs of homologous chromosomes are separated
The nuclear membrane breaks down
Answer - ( I'm not smart so ye- ) I think its Chromosomes coil and condense
Hope this helps....I'm d.u.m.b TwT
The following occurs in meiosis but not in mitosis: pairs of homologous chromosomes are separated. This is present in the third option, and in the process, the homologous pair of chromosomes is separated in meiosis I.
What does the meiosis process carry out in the cell?Meiosis and mitosis share many similarities, such as replicated DNA separation, spindle fiber formation, and nuclear membrane fusion, but the difference between the two is that meiosis has homologous chromosome separation, whereas mitosis does not. The meiosis in this process makes four haploid cells, and the mitosis makes two diploid cells from a single daughter cell.
Hence, the following occurs in meiosis but not in mitosis: pairs of homologous chromosomes are separated. This is present in the third option, and in the process, the homologous pair of chromosomes is separated in meiosis I.
Learn more about meiosis by clicking here.
https://brainly.com/question/29383386
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Which is NOT a component of ATP?
Oa Adenine
Ob Ribose
Oc Glucose
Od 3 Phosphates
Answer:
oc Glucose
Explanation:
Does anyone have the key to "Student Exploration: Convection Cells"
It's a gizmo.
A mouse’s skin cell contains 11 chromosomes. How many chromosomes would be present in each of the mouse’s bone cells?
Answer:
11 chromosomes
Explanation:
If a person in the northern hemisphere observes a full moon, what moon phase would a person in the southern hemisphere observe on the same night? Be detailed in your explanation.
(SCIENCE)
Answer:
nooo
Explanation:
because the earth rotates changing the hemispheres
An increasing waxing moon's phase is seen from the Northern Hemisphere as it moves from right to left. Meanwhile, a waxing moon increases its phase from left to right as seen from the Southern Hemisphere.
What is Hemisphere?Hemisphere is defined as the Earth is evenly divided into two half by any circle that is drawn around it. The atmosphere is one of the fundamental elements of Earth's interrelated physical systems. The layers of gases that envelop a planet or other celestial body are its atmosphere. About 78% of the gases in the Earth's atmosphere are nitrogen, 21% are oxygen, and 1% are other gases.
In comparison to the northern hemisphere, the Moon does appear to be "upside down" in the southern hemisphere. It's only an issue of orientation here. Imagine that the equator and the Moon's orbital plane are the same.
Thus, an increasing waxing moon's phase is seen from the Northern Hemisphere as it moves from right to left. Meanwhile, a waxing moon increases its phase from left to right as seen from the Southern Hemisphere.
To learn more about Hemisphere, refer to the link below:
https://brainly.com/question/1362506
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The genetic information of a cell is carried in its DNA (short for deoxyribonucleic acid). What do cells need to do between divisions to make sure that a full set of DNA gets passed on to each daughter cell?
Answer:
The DNA must be copied so there is a full set of DNA to pass on to each daughter cell.
Explanation:
Things like your eye color and height are not traits you can control in fact you inherit traits like these from your parents these traits are passed on because they are controlled by
Answer:
genetics i think
Explanation:
Help asap! Correct me if am wrong! Boys and girls
PLEASE HELP ME! I just need number 3 and 4. I need them now
Answer:
3) oxygen rich blood and oxygen poor blood
Explanation:
the process of evaporation is occurring at which number?
Answer:
11
Explanation:
coz, there occurs gas phase transformation
what is the proton pump in photosynthesis called
In the electron transport chain protons are pumped in the b6f complex
When an electrochemical gradient is build electrons diffuse out in the stroma through the ATP-synthase
Answer:
plastoquinol—plastocyanin reductase
Explanation: