which structures carry out cell movement?
i need help asap plz
Answer:
In addition to playing this structural role, the cytoskeleton is responsible for cell movements. These include not only the movements of entire cells, but also the internal transport of organelles and other structures
On which continent were fossils of both Glossopteris and Lystrosaurus discovered?
MARK BRAINLIEST PROMISED!
Answer:
Antartica
Explanation:
I played the quiz and got it right!
Answer:
Antarctica and Africa
(or C if taking Edge)
Explanation:
Lystrosaurus fossils are only found in Antarctica, India, and South Africa. ... The Glossopteris fossil is found in Australia, Antarctica, India, South Africa, and South America—all the southern continents.
Not all cells have a cell membrane. True False
True
Explanation:All cells have cell membranes. There are variations between cell membranes, but the same basic structure exists in all cells.
hope this help! ^^
Which pathway crosses over in the medulla?
a. Lateral spinothalamic pathway
b. Posterior column pathway
c. Anterior spinothalamic pathway
d. Spinocerebellar pathway
Answer:
B - Posterior column pathway
The only spinal column that does not cross over as it enters the spinal cord is the posterior column. Instead, the medulla oblongata is where the posterior column transitions. Therefore, option (B) is correct.
What is Posterior column pathway?The dorsal column–medial lemniscus pathway (DCML) is a sensory pathway of the central nervous system that conveys sensations of fine touch, vibration, two-point discrimination, and proprioception (position) from the skin and joints. It is also known as the posterior column–medial lemniscus pathway, or PCML.
The only column other than the posterior one to enter the spinal cord without making a crossing is the posterior column. In its place, the posterior column makes a U-turn in the medulla oblongata.
Therefore, option (B) is the correct option.
Learn more about Posterior column pathway, here:
https://brainly.com/question/28271023
#SPJ2
I am usually single stranded
DNA ONLY
RNA ONLY
BOTH DNA AND RNA
Answer:
BOTH DNA AND RNA
Explanation:
Answer:
hi you wasted one of the answers i had for my question so im returning the favor :)
Explanation:
Help me pls I don’t understand
Answer:
im 99% sure its b :)
How are scientists using the lotus leaf as inspiration to solve problems?
The type of membrane protein that gives cells specific identity are called:
Markers
Channels
Receptors
Pumps
Aquaporins
Answer:
Membrane markers allow cells to recognize one another, which is vital for cellular signaling processes that influence tissue and organ formation during early development. This marking function also plays a later role in the “self”-versus-“non-self” distinction of the immune response.
Explanation:
please paki sagutan
Answer:
Ang mga dapat na taglay ng mga kabataang asyano:
- May pagpapahalaga sa sariling pinag-mulan.
- May taglay na kababaang loob.
- Marespeto sa pamilya at kapwa.
- Pagkakaroon ng bukas na isipan.
Ang mga di-dapat na taglay ng mga kabataang asyano:
- Manatili sa sariling pag-iisip.
- Ikamuhi ang sariling bansa.
- Pag patuloy na pagsuporta sa desisyon ng ibang bayan.
- Pagpilit sa gusto at nais na walang sapat na dahilan.
different categories of cells and give one example in each catergory
Cells are of two types: eukaryotic, which contain a nucleus, and prokaryotic, which do not. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular.
Which level of organization is not found in every protein
Answer:
I Think...
Explanation:
Each protein has a particular structure necessary to bind with a high degree of ... Others, like titin (a protein found in muscle), are very large Organization of Protein Structure ... This single hydroxyl orientation difference does not allow galactose to bind to hexokinase and thus hexokinase exhibits specificity of binding.
What’s the answer ? I will very appreciate if someone helps me
9) A young plant will develop from the ___ inside the seed.
petiole
zygote
anther
axil
Purple flowers are dominant to white flowers. A heterozygous purple flower is crossed with a white flower. What are the probabilities of the phenotypes and genotypes of their offspring?
Answer:
50% probability of Pp (purple) or pp (white) genotype.
Explanation:
P = purple gene
p = white gene
Punnet squares show the possible genotypes and probabilities of each genotype in the offspring of a cross:
Purple flower genotype (heterozygous) = Pp
White flower genotype = pp
Punnet Square:
[tex]\left[\begin{array}{ccc}&P&p\\p&Pp&pp\\p&Pp&pp\end{array}\right][/tex]
Potential genotypes for offspring are Pp and pp;
According to the Punnett square, 2 of 4 offspring will have the Pp genotype and the other 2 will have pp genotypes;
This means 2 should be purple and 2 white;
Or, there is a 50% chance of having either genotype, of being purple or white.
Let us assume the following:
Flower color is represented by the allele A.Hence, the dominant purple color would be A, while the alternate white color would be represented by a.From the above assumptions, a heterozygous purple flower would have the genotype Aa, while a white flower would have the genotype aa.
Now, crossing the two flowers:
Aa x aa
Aa Aa aa aa
From the results of the cross, the offspring's genotypes, phenotypes, and their respective probabilities would be as follows:
Aa - purple color - 1/2aa - white flower color - 1/2In order words, the cross will yield offspring with purple color flower (genotype, Aa) and white flower color (genotype, aa) each with 1/2 probability.
More about monohybrid crossing can be found here: https://brainly.com/question/15521718
Liverworts, like the ones shown here, are nonvascular plants. They do not grow tall. Explain how the tissues in liverworts affect their size.
Guys I'm so confused. Please help!
Answer: The tissue structure of the liverworts restricts them to a type of environment that affects their size.
Explanation:
Nonvascular plants, also called the Bryophytes in Kingdom Plantae, are simple plants that grow in damp places on land and as the name implies, are non vascular plants( that is, they lack vascular tissues). There are three types of nonvascular plants which includes:
--> Mosses
--> liverworts and
--> hornworts.
Liverworts are restricted to a particular size through the type of tissue they have ( non vascular) because it predisposes them to lack conducting vessels like the phloem and xylem found in vascular plants which aids in conducting water and food to various parts of the plants. Also they do not grow tall like the vascular plants because they lack the qualities that will enable them do so, such as roots, stems and leaves.
Nonvascular plants are low-growing, reproduce with spores, and need a moist or damp environment.
g Blood flows through a coronary artery that is partially blocked by deposits along the artery wall. Through which part of the artery is the flow speed largest
Answer: The question is incomplete and the options are not given but here are the options gotten from another websites.
A. Narrow part.
B. Wide part
C. The flow rate are the same in both part.
The correct option is C.
The flow rate are the same in both part.
Explanation:
The flow rate are the same in both because when there is partial blockage at the artery wall, the blood flow speed will reduce or stop, therefore the blockage will be a barrier or hindrance to free blood flow and therefore, both the narrow part and wide part will receive the same level of blood flow because of the blockage and this blockage result in restricted blood flow which in one way or the other hinder oxygen supply to the heart. The blockage deposits can cause a thickened artery wall and when blood flow is restricted it causes chest pain and if it stop it can cause heart attack. Blockage deposits can be as a result of artery wall damage.
Is sickle cell gene mutation positive, negative, or neutral?
The majority of mutations have neither negative nor positive effects on the organism in which they occur. These mutations are called neutral mutations. Examples include silent point mutations. They are neutral because they do not change the amino acids in the proteins they encode.
Ansel Adams' constant energy and activity helped him achieve notoriety and prestige in the early 1930's.
Which word is the best synonym for the underlined word in the sentence above.
a. honor
C. awards
b.
wealth
d fame
Answer:
It's "D"
Explanation:
Fame
Answer:
it d
Explanation:
Unlike other lipids, steroids can diffuse through a cell membrane.
False
True
Write a logical hypothesis
Answer/Explanation:
Two unaffected parents can have affected children, that means cystic fibrosis must be a recessive trait.
The two parents must each have one copy of the cystic fibrosis allele, but are themselves unaffected. By chance, the son (shaded) inherited both of these copies and is affected. The daughter either inherited one or zero copies of the cystic fibrosis allele, as she is unaffected.
what is the difference between a heterogeneous mixture and a homogeneous mixture
Answer:
A heterogeneous mixture is a mixture where throughout the solution the composition is not uniform. Through definition, a single-phase consists of a pure substance or a homogeneous mixture. There are two or more phases of a heterogeneous mixture.
Homogeneous mixture is a mixture which has uniform composition throughout its mass.Example:-air,saline solution,most alloys and bitumen.Heterogeneous mixture is simply any mixture that is not uniform in composition.Example:-Sandy water,Orange juice with pull,cereal in milk.
Help MrBeast and hundreds of thousands others plant trees and help prevent Global Warming!!
Listen Please, this is a very important cause, our Earth has been suffering Global Warming since the 18th Century and has also experienced Climate Change, we need YOUR help to help us plant trees for better oxygen, a better Earth, and to help Earth. Earth has been here since forever and has been great to us, now we come and destroy it, now is the time to help prevent global warming, if you are going to answer, please just type #teamtrees and something positive. PLEASE NO NEGATIVITY.
As always, stay safe and WAP (water and plant) a tree. Thank you!
Answer:
OMG I LOVE YOU SOMEONE NEEDED TO SAY THIS!! MUCH LOVE OMG CAN WE PLS BE FRIENDS ❤❤❤❤❤
Answer:
yep we will sure help!
Explanation:
LETS HELP MRBEAST GLOBAL WARMING!!!!!!!!!!!!!!!!!!!!!!!!!!
According to Jean piaget most preschool children are in the ______ stage of mortal development ?
the function of a cell wall
Answer:
Shhhhhhhhshehrhh
Explanation:
Jjshhhhhhh
Farmers often spray chemicals on their crops to keep insects away. Some insects die from these chemicals, but some insects
continue to live. What will MOST LIKELY happen to the insects that live?
A)
They will be unable to lay eggs.
B)
They will start eating other crops.
They will produce more insects that can survive.
D)
They will be able to protect themselves from all types of chemicals.
which of the following is a statement of the first law of thermodynamics?
Answer:
Which of the following is a statement of the first law of thermodynamics? Energy can be transferred/transformed, but it cannot be created or destroyed. ... Whenever energy is transformed, there is always an increase in the: entropy of the universe.
Explanation:
Answer:
✔ Heat is transformed, but not created or destroyed.
Explanation:
The changes that occurred in Yellowstone National Park after all of its wolves
were killed showed that wolves are
A. harmful to the ecosystem
B. a keystone species in the ecosystem
C. a producer in the ecosystem
D. the only predators in the ecosystem
Vertebrates can be classified in.
Explanation:
the middle one light blue
Answer:
The middle option
Explanation:
Vertebrates can be mammals, birds, reptiles, amphibians, and fish.
Most fish do have backbones.
how many holes are in the human body?
Answer:
I think there are 8 holes in a male and 9 holes in a female. Not including pores.
Explanation:
How does nitrogen help plants to grow?