Which of the following is an
organelle?
A. a brain
B. a cell
C. lungs
D. a nucleus
What is NOT a function of a cell
wall?
A. shape
B. movement
C. support
D. strength
Answer:
B
Explanation:
Describe the ways in which water in sewage polluted lake and water from the sea are
unsafe to drink
Can someone help I’ve been stuck at this question for the past 10 minutes
A _____ extinction occurs when many species go extinct in a relatively short period of time
Answer:
I think it's
A mass extinction occurs when many species go extinct in a relatively short period of time.
Explanation:
Mass extinction is usually defined as a loss of about three-quarters of all species in existence across the entire Earth over a “short” geological period of time. Hence, I think the answer is correct.
Answer:
The correct answer is Mass
How do we know that there will be no changes to our DNA because of this vaccine?
Answer: There will be no changes in the DNA. My brother and parents both got it and nothing happened to their DNA. But I can warn you that one of the vaccines will make you terribly sick if you have Coronavirus when you get the shot. I'm unsure tho lol
Explanation:
Which of the following accurately describes covalent bonds?
A. Covalent bonds are formed when atoms share one or more
electrons.
B. Covalent bonds are formed when atoms transfer one or more
protons.
C. Covalent bonds are formed when atoms share one or more
protons.
D. Covalent bonds are formed when atoms transfer one or more
electrons.
Answer:
A
Explanation:
A covalent bond consists of the mutual sharing of one or more pairs of electrons between two atoms. These electrons are simultaneously attracted by the two atomic nuclei. A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions.
Answer: The answer is A Covalent bonds are formed when atoms share one or more electrons
Explanation:
Which list identifies the order of events that formed a volcanic crater?
A) CBDA
B) BACD
C) CADB
D) DBAC
Based on the given image, the order of events that formed a volcanic crater is CADB. Thus the correct option is C.
What is a volcanic crater?A nearly circular hole in the ground produced on by volcanic eruptions is known as a volcanic crater. It is a valley that typically stands just above the eruption where volcanic debris is emitted, and it has the shape of a bowl or funnel.
During volcanoes, craters' dimensions and shapes could alter. A volcanic crater, also known as a caldera, is a sizable depression created when a natural disaster occurs and then collapses.
Underneath the surface of the Earth, the molten rock is known as magma. Less dense than normal lava is being pushed upward to the surface by intense pressure. When magma seeps through layers of preexisting rock, it forms another structure.
Therefore, option C is appropriate.
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Your lab group is assigned an unknown organism to identify to the level of phylum. You have it narrowed down to either Phylum Porifera or Phylum Cnidaria. Which feature would allow you to identify the phylum of your unknown creature
Answer:
The correct answer is - the presence of pores.
Explanation:
The name Porifera is a term that means pore bearer as these individuals are one cell thick with many tiny pores present on their body and some big openings as well. These small pores are one of the characteristic features of these organisms. It distinguished the Porifera phylum from the Cnidaria phylum. There are many other microscopic and behavioral features present to classify them but in the lab presence of pores is important.
How do you think a period of hot summers will affect the rabbit population?
Answer: because i dont think rabbits will come out because its to hot and lots of people may be out so they might get scared
Explanation:
One of the following is not used as a means of artificial vegetative propagation method C A Stem cutting B Grafting Layering D Seed sowing
Answer:
d
Explanation:
seed sowing is the true answer i think
One of the following is not used as a means of artificial vegetative propagation method.
[tex]{ \bf{ \underbrace{Answer}}}[/tex]
[tex]\sf\purple{D \:Seed\: sowing.}[/tex] ✅
The common types of artificial vegetative propagation includes cutting, layering, grafting, sùckering, and tissue culturing.[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]
which of the following is good for a plant?
Answer:
c,d
Explanation:
hehe don't be mad at me
With the naked eye, a(n) , a negatively charged particle, cannot be seen. switch electron insulator
what is the question??
why is the elastic rebound theory compared to a rubber band
Helicobacter pylori survives in the stomach due to: a. a thick capsular layer b. endospore formation c. a teichoic acid receptor d. the production of urease to generate ammonia from urea
Water flow improves in the aftermath of a forest fire because
rain always puts out fires.
no living organisms survive fires, decreasing demand.
they clear the land, allowing more water to flow over it.
much of the water in a local watershed will be used to fight the fire.
Answer:
cccccccdcccdcdcxd zdx dcccccc
Which planet has a longer day than year?
OVenus
O Neptune
O Earth
Answer:
VENUS
Explanation:
On Venus, one rotation on its axis takes the equivalent of 243 Earth days and the planet's orbit around the Sun takes the equivalent of 225 Earth days.
Answer:
Venus, I think
Explanation:
So outta these three, Venus is the closest to the sun, so the year is the shortest. Venus is also the planet with the longest day averaging at 116d 18h, so I think that's the right one. Sorry if this is wrong
hope this helps:|
Which of the following is a potential benefit of a disturbance to a
community?
O a decrease in availability of resources
o the community may be unable to recover
O some species depend on disturbances
O links between the native species break
Answer:
I'm pretty sure it is 'some species depend on disterbences'
The potential benefit of a disturbance to a community is that some species depend on disturbances.
Importance of disturbance in a communityCommunity disturbance can be defined as a force, which may be biological or non biological, that results in mortality of organisms or loss of biomass.
Different types of disturbance that can affect a community include:
fires, storms, diseases, volcanic eruptions, earthquakes, contaminant spills, and land clearing.Some species depends on community disturbance because the cleared habitat caused by the disturbance leads to species movement into the newly cleared area, that is, secondary succession.
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Explain why unreactive metals are good for making jewelry
Explanation:
Platinum, gold and silver are used to make jewellery because the metals used in jewellery are always be chosen on the basis of its reactivity. It should be unreactive so that the metal does not tarnish. Many metals used for jewellery are expensive as well because they are rare.
Giving brainliest!!!!!
View the worksheet below
Use the list of words to fill in the blank
Answer: Hmm!!!
Explanation:1: parathyroid
2:Thyroid
3: Adrenal
4:testes
5:Pitutary
6:Thymus
7:pancreas
8:ovary
1:parathyroid
2:thyroid
3:Adrenal
4:testes
5:Pitutary
6:Thymus
7:pancreas
8:ovary
Do heterozygous individuals have two of the same allele?
Answer:
False.
Heterozygous means having two different alleles.
Answer:
Heterozygous individuals have two different alleles of a gene.
Explanation:
he following diagram shows the branching tree diagram for some animals. (5 points)
A slanting line is shown. There are five lines drawn vertically on this line at equal intervals. Shark, Frog, Kangaroo, Lion and Chimpanzee are written on top of each vertical line in order from left to right. Common Ancestor is written on the left end of the line. There is a black circle between each pair of these vertical lines. The first black circle is before Shark and says Vertebrae. The second black circle is between Shark and Frog and says Lungs. The third black circle is between Frog and Kangaroo and says Mammary gland. The fourth black circle is between Kangaroo and Lion and says Placenta. The fifth black circle is between Lion and Chimpanzee and says Large brain.
Which two organisms share the least number of derived characteristics?
Frog and kangaroo
Kangaroo and chimpanzee
Lion and chimpanzee
Shark and chimpanzee
Answer:
d
Explanation:
D is the answer hopefully this helps anyone who needs it
Which of the following limits cell size? Select all of the answers that apply.
Answer:
Cell size is limited by a cell's surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes
identify and tick on the aromatic medicinal herb.
A) Aloevera
B) Neem
C) Holy basil
D) Harro
Which part of cell division is different in plant and animal cells?
A.cytokinesis
B.anaphase
C.mitosis
D.eukaryotic
Explanation:
Cytokines is different in plant and animal cells
In tall plants, (T) is dominant to small (t). If two plants heterozygous for tall fruit are crossed, what are the
possible genotypes of the offspring?
A- TT, Tt, and tt
B- Tt
C- TT, tt
D-Tt, tt
Answer:
possible genotypes of offsprings are A.
TT Tt and tt
Answer:
A- TT, Tt, and tt
Explanation:
Draw a Punnett square!
Which of the following are light-
absorbing molecules?
A. Chloroplasts
B. Photocells
C. Pigments
Answer:
I think it is A chloroplasts
Determine if the karyotype is male or female
Answer:
I think it's female because I don't see a Y chromosome if it's has one it's a male
hope this helps
have a good day :)
Explanation:
which cells is formed by meiosis
Answer:
Haploid
Explanation:
Answer:
Meiosis produces our sex cells or gametes
The nucleus is surrounded by a semipermeable membrane. What would happen if this layer were permeable to most substances?
A. The DNA in the nucleus would be protected from harmful substances
B. Enzymes would not be able to speed up reactions in the nucleus.
C. The nucleus would not be able to communicate with the rest of the cell.
D. Large molecules would be able to enter and damage the nucleus.
Answer:
D
Explanation:
If the layer of nucleus were permeable to most substance, then the large molecules would be able to enter and damage the nucleus.
What is nucleus?It is a membrane-bound organelle present in the centre of cell in which thread like structures called chromatins are present which condenses to form chromosomes contains genetic material (that carries genetic information from parents to offspring).It controls all function of the cell.The layer or membrane around nucleus is called nuclear membrane is semi-permeable in nature which means that only specific molecules and ions can move across it.If the membrane would become permeable, then movement of all types of molecules will occur which will disturb the homeostasis (maintaining balance) of cell and can damage the nucleus.Hence, the correct option is: D. Large molecules would be able to enter and damage the nucleus.
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What are carbohydrates composed of and what is their main function in the body
Answer:
The Bottom Line
Carbohydrates serve several key functions in your body. They provide you with energy for daily tasks and are the primary fuel source for your brain's high energy demands. Fiber is a special type of carb that helps promote good digestive health and may lower your risk of heart disease and diabetes
Explanation:
HOPE IT HELPS