Answer:
This submarine Mid-Atlantic Ridge owes its formation to the movement of the continental plates on either side of the ocean. As these plates slowly separate, they leave gaps in the earth's crust. This allows molten rock from beneath the earth's crust to reach the surface, forming a new part of the ocean floor
Ostriches have wings but do not fly humans have an appendix with no apparent function whales contain bones for rear legs each of these are examples of
Answer:
vestigial structures
Ostriches have wings but do not fly, and humans have an appendix with no apparent function, whales have bones for their back legs, which are examples of vestigial structures because they were once functional but are no longer.
What is the importance of the vestigial organs in animals?Vestigial organs have lost much or all of their ancestral function in the evolution process, for example, ostriches have wings that have lost the ability to fly and are now used for balance and courtship displays. The human appendix is another vestigial organ that once had digestive function but no longer does.
Hence, ostriches have wings but do not fly, and humans have an appendix with no apparent function, whales have bones for their back legs, which are examples of vestigial structures because they were once functional but are no longer.
Learn more about the vestigial organs here.
https://brainly.com/question/21377023
#SPJ6
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:
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:
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
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! ^^
How does nitrogen help plants to grow?
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.
Help me pls I don’t understand
Answer:
im 99% sure its b :)
What would happen if our skeleton are made up of a single bone.
Group 3
Q. Which type of movement would have been possible if:
a. our elbow had a fixed joint
b. we were to have a ball and socket joint between our neck and head.
Q.2. Define the following:
a. Joints b. Ligaments C. Cartilages
Joints:-Joints are the areas where 1 or more bones meet.Most joints are mobile,allowing the bones to move.Joints consist of the following:Cartilage . This is a type of tissuethat covers the surface of a bone at a joint.Next Ligaments:-Ligaments are short bands of tough,flexible tissue,made up of lots of individual fires,which connect the bones of the body together.Ligaments can be found connecting most of the bones in the body.The function of a ligament is to provide a passive unit to amount of movement between your bones.
What is the importance of the envelope to a virus? PLSSS HELPP!!!
Answer:
The viral envelope serves several functions, including protecting the RNA or DNA molecule(s), evading recognition by the immune system, and facilitating virus entry. Despite these commonalities, viral envelopes come in a wide variety of shapes and configurations.
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.
How do sea urchins alter the ecosystem if their population gets too big?
The overpopulation of the sea urchin population might magnify the impact of the negative growth conditions of kelp beds by eating what's left or what grows in the next few years.
How are scientists using the lotus leaf as inspiration to solve problems?
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.
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.
9) A young plant will develop from the ___ inside the seed.
petiole
zygote
anther
axil
What’s the answer ? I will very appreciate if someone helps me
a______is a substance or a cgemical compound required by the animal for these productive purposes
Answer:
A nutrient is a substance or a chemical compound required by the animal for these productive purposes .
Explanation:
Nutrients are essential compounds and macromolecules needed for a variety of metabolic processes. Animals show heterotrophic nutrition by consuming organic matter like lipids, fats, and proteins.
Food provides essential vitamins, amino acids and minerals that are used as cofactors and coenzymes in chemical reactions.
For example, animals use carbohydrates as fuel for all metabolic processes.
C6H12O6+ 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP
According to Jean piaget most preschool children are in the ______ stage of mortal development ?
Which type of reproduction is when two cells come together to produce a new individual? fission sexual asexual budding
Answer:
sexual reproduction
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.
what is mass ?write any 3 untits of mass
Explanation:
mass is a weight ofan object .
PLEASE HELP IT IS DUE NOW
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
Unlike other lipids, steroids can diffuse through a cell membrane.
False
True
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:
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:
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.
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.