Answer:
D. structures that have lost all or most of their function over evolutionary time
Explanation:
the question states that the leg bones are almost entirely unused because of evolution
The study of change over a period of time is called evolution.
The correct answer of the following is D.
The change in the species over the period of time is called evolution. It is necessary to adapt itself in order to survive in nature.
According to the lamark, it is said that the organs which are no longer used in the body will become vestigial and will be removed from the body over a period of time.
According to the question, the small bones in the whale is might have functioned in the ancestor period but not in the current time due to the course of the evolution.
Hence, the correct answer is D that structures that have lost all or most of their function over evolutionary time.
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Which effect does an ocean have on the climate??
Answer choices
Cool ocean air causes a cool climate.
There is no influence on climate from an ocean.
Warm ocean air causes a dry climate.
Rushing water from tides cools the land.
Answer:
Rushing water from tides cools the land
Explanation:
hope this helps:)
Answer:
A: Cool ocean air causes a cool climate
Explanation:
I took the test and got it right.
Have a good day!
Which type of feedback does your body normally operate through (Positive or Negative)?
Answer:
Negative
Explanation:
Acorrding to the scientific community mainly those from Emory it is said that your brain process things more negatively than positively this however is not a negative thing in fact it is said if you were happy all the time you would go insane
How are humans impacting the carbon cycle positively?
What basic nutrients necessary for life are present in soil?
A hydrogen, carbon, oxygen, nitrogen phosphorous, sulfur
B rocks, minerals, microorganisms, root hairs, animals
C iron, magnesium, silicon, sodium, calcium, potassium waste
D matter, bacteria, dead plants, animals
Answer:
hydrogen, carbon, oxygen, nitrogen phosphorous, sulfur
Explanation:
got it right on quiz
The table below shows the percentages of bases in a DNA sample. How much Guanine (G) should you expect to find in the sample?
Answer:
17%
Explanation:
guanine is cooped
with cytosine
Using Chargaff's rule, the percentage of Guanine(G) in the sample is always equal to the percentage of Cytosine. Hence, the percentage of Guanine which is expected to be found in the sample ls 17%.
From the table attached :
Thymine = 33%Cytosine = 17%According to Chargaff ; the percentage of Cytosine equals the percentage of Guanine :
Guanine = Cytosine = 17%.
Percentage of Thymine equals the percentage of Adenine :
Adenine = Thymine = 33%Therefore, the amount of Guanine which is expected to be found in the sample is 17%
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Evolution is a process of change over time. A leading theory explaining why things evolve is: *
A. Inbreeding
B. Natural Selection
C. Kin Selection
D. Natural Ingredients
The segment of____
that codes for a____
is called a____.
Answer:
DNA
particular protein
polypeptide
I get it! Now I know that organisms are classified _____
Answer: i think it is domains kingdoms
Explanation: based on their cell types
Why does DNA have to relocate
Answer:
chromosomes are made up of a DNA protein complex called chromatin that is organized into subunits called nuclesomes...
Cellular membranes enclose a cell and its contents from its environment. Establish which of the
following comprises cellular membranes.
A. Lipids
B. RNA
C. DNA
D. Microsphere
Answer:
The function of segregating the interior of the cell enclosure to the outside is known to occur by the function of the plasma membrane. These molecules comprising the plasma membrane is none other than lipids. Highly enriched hydrophobic tails of lipids interact with other lipids in a typical bilayer arrangement to regulate and control gene expressive Molecular and other crucial ions from moving in.
What are some ways that living things can be classified? What characteristics should we look at when putting living things into groups?
The classification of living things includes 7 levels: kingdom, phylum, classes, order, families, genus, and species. Characteristics such as appearance, reproduction, mobility, and functionality are just a few ways in which living organisms are grouped together. These specialized groups are collectively called the classification of living things.
Hope this helps :)
Your skin cells have 46 chromosomes. After they complete the cell cycle, how many chromosomes will be in the daughter cells? Explain.
Answer:
46
Explanation:
The skin cells with 46 chromosomes will each produce daughter cells with 46 chromosomes after they complete the cell cycle.
The skin cell is a vegetative cell that can only divide through mitosis. Mitosis is also referred to as equational division during which a cell produces two daughter cells that are both genetically and phenotypically similar to the parent cell.
During the cell division, at the anaphase stage to be precise, the chromosomes are separated into sister chromatids and sister chromatids of the same chromosomes move in the opposite direction to the poles of the cell before the cytoplasm of the mother cell divides to produce two independent daughter cells. Each chromatid in the new daughter cells then goes ahead to become a complete chromosome with two sister chromatids.
Hence, at the end of the cycle, each daughter cell ends up having the same 46 chromosomes as the parent cells.
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How does leaf structure allow for exchange of gases (O2 and CO2). Select 3 options.
Stomata (pores) let gases pass in and out.
Leaf is flat and thin = large surface area
The leaf has got Chloroplasts.
The Spongy Mesophyll layer has lots of space for gases to diffuse.
Answer:
Explanation:
Gas exchange
When a plant is carrying out photosynthesis carbon dioxide needs to move from the air into the leaf. It does this by diffusing through small pores called stomata. At the same time oxygen moves out of the leaf through the stomata. This movement of gases in opposite directions is called gas exchange.
Where m and n are statements mVn is called the _____ of m and n .
Each of the following can kill pathogens in the body, except:
A Vaccines
B Antibodies
C Leukocytes
D Antibiotics
Answer:
A. Vaccines
Explanation:
These are meant to prepare the body for the possibility of infection by building up immunity.
Have a great day!
Whale
Horse
Bird
Cat
Bat
Human
These limbs provide evidence of common ancestry because they -
Answer
A have the same basic structure
B pedom the same function
С
are the same size
Dare parts of mammals
Answer:
The answer is A
Explanation:
All the the different limbs all have an upper arm bone which is the humerus and two forearm bones which are the ulna and the radius.
The limbs of Whales, horses, birds, cats, and humans provide evidence of common ancestry because they have the same basic structure. Thus, the correct option for this question is A.
What is a common ancestor?A common ancestor may be defined as an ancestral organism that is significantly shared by two or more descendent lineages. In a more simple term, an ancestor that they have in common. These ancestors follow each taxon's lineage back in time until all the lineages meet up.
A Common Ancestor is a lineage that undergoes cladogenesis, that is, branching evolution, such that more than one species can trace its ancestry back to the common ancestor or, more accurately, to multiple common ancestors.
Therefore, the limbs of Whales, horses, birds, cats, and humans provide evidence of common ancestry because they have the same basic structure. Thus, the correct option for this question is A.
To learn more about Common ancestors, refer to the link:
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#SPJ2
what was the name given to an offspring that is the exact copy of its parent
Answer:
a clone kind of or an identical daughter
Explanation:
i can't remember but sexist to be called a daughter tho init
What word describes the majority of permanent genetic mutations?
-beneficial
-helpful
-minor
-harmful
Drag the tiles to the boxes to form correct pairs
Use the Hertsprung Russell diagram to determine which condition describes each star. Use the arrows to help locate the stars
Betelgeuse
SUPERGANTS
1.
Sru
Betelgeuse
the Sun
Salus
The star can no longer support nuclear fusion because it has exhausted its supply of
hydrogen
The star's hydrogen supply is running low, so it is using hydrogen from outside the
core
The stars experiencing nuclear fusion at score
Answer:
Sirius B
Betelgeuse
the Sun
Answer:
1. -sirus b
2 -Betelgeuse
3. -the sun
Explanation:
i just solved it!
What is the relationship between changing co2 concentration and temperature?
Answer:
When the carbon dioxide concentration goes up, temperature goes up. When the carbon dioxide concentration goes down, temperature goes down
Explanation:
Kennedy I love you I am gay and I know you are to so please answer I willing give you brainist please don’t answer until she answers
Answer:
PP
Explanation:
Answer:
HEYYYY YALL WHATS POPPINNN
Explanation:
Which of the following is not directly involved in protein synthesis?
tRNA
mRNA
Ribosomes
Mitochondria
I need help with science
Answer:
an increase or decrease in temperature
Explanation:
it the only that makes since
How do metamorphic rocks work?
Answer: Metamorphic rocks are formed from other rocks that are changed because of heat or pressure. They are not made from molten rock. rocks that do melt form igneous rocks instead. Earth movements can cause rocks to be deeply buried or squeezed. As a result, the rocks are heated and put under great pressure.
Explanation:
Please help!
Will mark brainiest for the most helpful answer!
Answer:
upper one is translocation and lower one is deletion
Explanation:
What catastrophic event occurred in
California? What did officials learn from
the event?
Answer: Wildfires and from the locals!!
URGENTTTT I willl mark brainliest Place the organisms in order of their trophic level on the food chain starting with producer and going upward
Angel Queen Fish
Nassau Grouper
Plankton
Sponges
examples.
Protein
a. Long term energy storage and
heat insulation (keep warm)
Carbohydrate
b. Make up the cell wall (Cellulose)
and short term energy
Lipid
c. Store genetic information
DNA
d. Speed up the rate of chemical
reactions with enzymes
NOTES Definitions:
Answer:
cellulose is the answer
Explanation:
carryonleanring
The first living organisms were very complex and multicellular.
true or false?
Answer:
False.
Explanation:
The first living organisms were very simple and unicellular.
How does the method of reproduction differ in each of the three species?
Answer:
What are the three species?
Answer:
Hydra carry out budding (reproduce asexually)
Plants carry out asexual reproduction
Animals carry out sexual reproduction
Explanation:
