Answer:
1. C
2. A
Explanation:
Scientists discover two planets orbiting a distant star. The average distance from the star to Planet A is 4 AU, and it takes 432 Earth days for Planet A to orbit the star. If it takes 1,460 days for Planet B to complete an orbit, what is the average distance from Planet B to the star?
Answer:
3.3
Explanation:
no reason for the explanation
Answer:
C. 9 AU
Explanation:
The period (T) of Planet A is 432365=1.2 Earth years. The period of Planet B is 1,458365=4.0 Earth years. Kepler's Third Law states that
a3=kT2
Substituting the known values of a and T for Planet A, we have
43=k⋅1.22
64=k⋅1.4
k=45.7
Using this value for k, we can solve for the distance from Planet B to the star
a3=45.7⋅4.02
a3=731.2
a=9.0AU
An alternative solution is to notice that a3T2=k for both orbits, which means that the ratio a3T2 is the same for both orbits. So, 434322=x314582. Solving this proportion gives x3=729, so x=9.0AU.
what are two types of cells? and what is the diffrenece between both of them? HURRY IM FAILING
Answer:
There are two cell types: prokaryotes and eukaryotes. Prokaryotic cells are usually single-celled and smaller than eukaryotic cells. Eukaryotic cells are usually found in multicellular organisms, but there are some single-celled eukaryotes.
If this helped mark my answer the brainliest, (by clicking the little crown on my answer), it really does help a lot ! (〃＞＿＜;〃)Answer:
The two types of cells is Prokaryotic and Eukaryotic cells.
Prokaryotes are organisms that consist of a single prkaryotic cells. Prokaryotic cells have only one organelle: the ribosomes.
Eukaryotic cells are found in plants, animals, fungi, and protists. They ange from 10-100um in diameter, and their DNA is contained within a membrane-bound nucleus. Eukaryotes are organisms containing the eukarytoic cells.
Explanation:
I'll give you a brainliest if is right or at least shows some effort
(thanks & i hope your having a good day)
In your own words, explain how a radiosonde can be used to predict future weather conditions in a location.
A radiosonde is a small, expendable instrument package suspended below a weather balloon. As the balloon rises, sensors on the radiosonde measure values of atmospheric temperature, pressure and relative humidity. These sensors are linked to a radio transmitter, which sends measurements to a ground receiver
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Which of the types of cells in T. adhaerens contain cilia (choose that all apply)
A cover cells
B fiber cells
C cylinder cells
D gland cells
Answer:
B.fiber cells
Explanation:
cilia are lil eyelash kind of bit on cells. fiber cells have them.
The types of cells in T. adhaerens that contain cilia are fiber cells. The correct option is B.
What is a cell?The cell is the basic unit of life. The cell is the smallest unit of which the living organisms are made up. The cell contains all the organelle that perform the vital functions of the body.
T. adhaerens is a multicellular animal that is made up of fiber cells, the ones that contain cilia.
Thus, the correct option is B fiber cells.
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Problem A
A yellow purebred dog is crossed with a a black hybrid dog
(black is dominant)
What do you call the overall force acting on a object
Answer:
It's called a resultant force.
Explanation:
You see, there may be more than one direction of a force acting on an object so if both forces are of equal strength, the object doesn't move, but if one force is stronger than the other, the resultant force would tilt towards that force and the object would move that direction. It is the resultant force that decides where the object would go based on the forces acting on it.
help please don't know the answer
Answer:
what is it
Explanation:
show me
What do you think the term "ecological footprint" means?
Answer:
biologically productive land and sea area
Explanation:
To achieve which of the following goals would rotational grazing be most appropriate? (3 points)
-To maximize livestock populations while minimizing costs
-To preserve vegetation and soil fertility of land
-To involve townspeople in the operations of a nearby farm
-To transform an abandoned city lot into a neighborhood garden
Answer:
To preserve vegetation and soil fertility of land
Explanation:
.
A person with a low number of white blood cells could have difficulty in fighting infections and A decrease in the number of lymphoid stem cells could result in a decrease in red blood cell.
What is nucleotide?It is the sub units and buIlding blocks of DNA. It is made up of a five-sided sugar, phosphate group and then a nitrogen base.
These groups make the backbone of the DNA helix. If you look at a DNA helix, they make the side of the ladder or the side portion. They connect to a nitrogen base which make the steps of the ladder. The type of sugar that is used in a DNA helix is called deoxyribose.
Nitrogen bases are the molecules that make up the steps of the ladders. There are four different nitrogen bases, namely; Guanine, Thymine,Adenine and Cytosine.
Pyrimidines are compounds that make a single 6-sided ring. Examples of pyrimidines are Cytosine and Thymine. Purines on the other hand make 5-sided and 6-sided rings.
Therefore, A person with a low number of white blood cells could have difficulty in fighting infections and A decrease in the number of lymphoid stem cells could result in a decrease in red blood cell.
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What is the correct type of circulatory system for members of class Reptilia?
Open - Oxygen is delivered to organs by blood washing over organs in the body cavity.
Closed - Oxygen is delivered to organs by blood traveling through arteries and veins.
O Closed - Oxygen is delivered to organs by blood washing over organs in the body cavity.
O Reptiles don't have a circulatory system.
Answer:
Closed the first one
Explanation:
In amphibians, reptiles, birds, and mammals, blood flow is directed in two circuits: one through the lungs and back to the heart, which is called pulmonary circulation, and the other throughout the rest of the body and its organs including the brain (systemic circulation).
most mammals, have closed cardiovascular systems. The two main circulation pathways in invertebrates are the single and double circulation pathways.
Eukaryotic cells are germs, viruses, or bacteria ... true or false explanation
What factors contribute to Earth's tides? Choose more than one answer.
A.Change of seasons
B.The gravitational pull of the Moon
C.Radiation from the Sun
D.Earth’s rotation
E.Moon’s orbit around Earth
F.Earth’s orbit around the Sun
Answer:
B, E, F, D
Explanation:
The tide is largely controlled by the moon's gravitational pull.
The sun and moon both effect the tide.
Although the Earth's rotation has a smaller role, I included it as well.
The factors that contributes to Earth's tides are gravitational pull of the Moon, Earth’s rotation, Moon’s orbit around Earth, and Earth’s orbit around the Sun. The correct options are B, D, E, and F.
What are tides?Tides are the rise and fall of sea levels caused by the combined effects of the Moon's gravitational forces, as well as the Earth and Moon orbiting each other.
Tide tables can be used to predict tide times and amplitudes for any given location.
High as well as low tides are resulted by the moon's gravitational pull on the Earth and the Earth's rotational force.
The side of the Earth closest to the Moon experiences the strongest Moon's pull, causing the seas to rise and creating high tides.
One major force that causes tides is gravity. Ocean tides are caused by the sun's and moon's gravitational attraction to the earth's oceans.
Thus, B, D, E, and F are correct options.
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Hemoglobin is:
1) hormone;
2) Enzyme
3) protein;
4) Amino acid
HELPPP PLEASE!!!!
Answer:
The oxygen- carrying pigment and predominant protein in the RBC.
The stock is inserted into the scion during grafting. True False
That would be False
Explanation:
HELP!!!!15 POINTS!!!
i think it's c but idk..
Answer:
its definitely c
Explanation:
I studied it before, and the other ones don't make sense
HOPE THIS HELPS!
brainliest?
Ou are studying evolution by drift of coat color in two other wild populations of Dornish Sand Steeds. One population lives near Sandstone and the other near the banks of the Greenblood River. Knowing nothing else about these populations, which population would you conclude is more susceptible to genetic drift? Make sure you explain your reasoning and show your calculations. H
Answer:
The Sandstone community is somewhat more vulnerable to gene flow. A further explanation is provided below.
Explanation:
The risk of random mutations increases typically higher throughout communities with either a greater concentration. Genetic variation describes the probability including its loss of individual proteins from either the species. The lower the chromosomes, the increases the likelihood. Although women and men remain increasingly crucial for the sustainability of the community. Brown genotypes throughout Sandstone individuals will now have a greater risk of being attacked by gene flow.Cellular respiration is when
Answer: Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.
Explanation:
not my words, it's googles, but put it in your words.
What is the series of processes in which a plant converts sunlight into a useful simple sugar called?
division
choloplasts
photosynthesis
mitosis
Answer: Photosynthesis
Explanation: I had this question to and it should be correct. I’m sorry if not.
If an ecosystem is overpopulated
a. It's up to humans to correct the number
b. Exponential growth will continue
C. The resources of that ecosystem will not be able to fully support it for very
long
d. The rate of rehabilitation will only exceed the number of primary
consumers as long as the model of competition is NOT neglected.
Answer:
Okay this might be wrong but I'm certain the answer it C because of competition and the environments carrying compacity.
The national government wants to increase the number of national parks and recreation areas. How will this act help with the sustainability of our environment?
A.It will increase the carrying capacities of all animal species.
B.It will decrease land use for waste management.
C.It will preserve biodiversity for future generations.
D.It will cause a biological surplus of all plant species.
Answer:
It will preserve biodiversity for future generations.
Explanation:
took test and got it right
A rocket is launched from the launch pad at a speed of 700 km/hr. How far will the rocket have traveled after 1.0 hour?
.......I think 42000km
do all DNA from organisms look the same?
Answer:
no they do not
Explanation:
Tay-Sachs disease is a rare inherited disorder that progressively destroys nerve cells
in the brain and spinal cord. The allele for having Tay-Sachs is recessive written as t
and the functional allele is written as T. If two heterozygous parents have four
children, how many of the offspring will most likely inherit and develop Tay-Sachs
disease?
Answer:
B and C
Explanation:
I just took the test and it was right
(Please leave an answer if you know the correct one!) I'm unsure of my answer, if you'd like to...could you please assure me of my answer?
Or, if my answer is wrong correct me and explain why! ^^ Thank you! I'll try to help you in return!
Answer:
D) The number of mitochondria has decreased due to long period of rest
You are correct :)
Explanation:
The basketball player requires energy so remember that the mitochondria is the powerhouse of the cell (so it produces energy).
PLS HELP ASAP I WILL GIVE BRANIEST TO WHO ANSWERS THE QUESTION!!!!
Answer:Do u do edementum?
Explanation:
Answer:
Yes depending on the genetics of the individual
Explanation:
photo attached, what structures are A-F please help
Answer:
57esutpxtud75sr07d75075sztu9
Answer: A might be the nucleus and F is amino acid
Explanation:
What are the parts and primary function of the male reproductive organ?
Answer:
The male reproductive system is mostly located outside of the body. These external organs include the penis, scrotum and testicles. Internal organs include the vas deferens, prostate and urethra. The male reproductive system is responsible for sexual function, as well as urination.
Explanation:
The majority of the male reproductive system is found external to the body. The testicles, scrotum, are some of these external organs. The vas deferens, prostate, and urethra are internal organs.
What is the male reproductive system?The male reproductive system is made up of internal organs including the prostate gland, vas deferens, and urethra as well as external genitalia like the testes, and scrotum.
The health of the male reproductive system and the hormones secreted by the brain determine a man's fertility and sexual characteristics. The male reproductive system is in charge of both urine and sexual function.
They create, retain, and move sperm and semen, which are the male reproductive cells (the protective fluid around sperm).
Therefore, sperm is released into the female reproductive system by them. Male sex hormones are created and secreted by them.
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What is the role of mutation in cancer?
Answer: to affect different genes that control cell growth and division. Some of these genes are called tumor suppressor genes.
Explanation: since cancer is like a parasite it will want to get rid of what will not help it survive even pushing there limits
if an animal does not consume glucose how is the body still able to obtain the energy needed for cell processes
chemical reactions that absorbs more energy than they release are considered to be
Chemical reactions that absorbs more energy than they release are considered to be endothermic.
What is endothermic reactions?Endothermic reactions involve the absorption of heat from the surroundings, resulting in a decrease in temperature of the surroundings. In these reactions, the reactants have lower energy than the products, and the difference in energy is absorbed as heat from the surroundings. Examples of endothermic reactions include the melting of ice, the evaporation of water, and the reaction of baking soda and vinegar.
In contrast, exothermic reactions release more energy than they absorb, resulting in an increase in temperature of the surroundings. Examples of exothermic reactions include combustion reactions and the reaction between acid and base to produce salt and water.
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