Answer:
Most animals descended from a common set of organisms. "Evidence of this common ancestry can be seen in the structure and development of
homologous structures, even if the functions of these structures are different
The three main constituent minerals of granite stones are feldspar, mica, and quartz. The textures of different types of
granite stones are shown in the picture.
Based on the textures, it can be said that
A)
the proportion of mica in all the forms of granite is fixed.
B)
the proportion of quartz in all the forms of granite is fixed.
the three minerals vary in proportion in each form of granite.
D)
the three minerals are in the same proportion in each form of granite.
Answer:
Option C
Explanation:
Granite is composed of coarse-grained quartz and feldspars in varying proportions and due to the varying proportions of these two constituent materials, the texture of granite varies as shown in the image.
Thus, option C is correct
Options A and B and D are incorrect because the constituent material of granite is not fixed. It varies from from place to the other.
Organisms sharing a common ancestor
Evolutionary history
Fossil record
Anatomy
Common ancestry
Evolution
Scientists once thought that life spontaneously arose from nonliving things. It took extensive experimentation and the invention of new technology to confirm the tenets that now make up the cell theory. Now, we don't even question that cells are the basic units of life and only come from preexisting cells. What technology had the biggest impact on the development of the cell theory? (LS.2c)
Question 3 options:
centrifuge
electrophoresis
microscope
telescope
If a person's thyroid gland is removed surgically and hormone supplements
are not taken, the person will probably lack energy, feel cold, and gain weight.
a) true
b) false
If a drug was administered that would impede the binding of NAD+ to electrons what steps of cellular respiration would this substance affect
Answer:
The correct answer is - not getting all NAD+ so burning more ATP to make up for the energy loss.
Explanation:
If the drug was administered and it would cause impedetion of the binding of NAD+ to electrons which causes decrease availability of the NAD+ that leads to less energy formation due to the use up more ATPs in the process of cellular respiration.
If NADH couldn't be formed as NAD+ will not binding, the cells will lose out on ATP produced. It will lead to weight loss due to burning out more ATP to make up for the energy loss.
10. A molecule that has more
is known as a cation.
O A. protons than electrons
O B. electrons than neutrons
C. electrons than protons
O D. protons than neutrons
give an example of the symbiotic relationship between plants and microorganisms
Answer:
Beyond fungi, some plants engage in symbiosis with bacteria called rhizobia that “fix” nitrogen from the atmosphere, making it available to the plant. Rhizobia enable legumes like soybeans and alfalfa to grow without nitrogen fertilizer.
Explanation:
Birds are the main predators of these beetles; they hunt the beetles by sight and pick them off the tree bark where they feed. A logging company clears trees off an island and plants younger trees as a replacement. Trees with light bark are planted on one side of the island, and trees with dark bark are planted on the other side of the island. What do you predict would happen to the range of coloration in the population of beetles living on the light-colored trees of the island
Complete question:
1. The graph below depicts the frequency of expression of the coloration of beetles on an island:
Graph is the 1st Pic --> Attached files
Birds are the main predators of these beetles; they hunt the beetles by sight and pick them up off of the tree bark where they feed. A logging company clears the trees off of the island and plants younger trees as a replacement. Trees with light bark are planted on one side of the island and trees with dark bark are planted on the other side of the island. What do you predict would happen to the range of coloration in the populations of beetles on each side of the island?
Select TWO answers, one to represent the beetles living on the light colored trees and one to represent the beetles living on the dark colored trees. (2 points)
A. graph 2 below
B. graph 3 below
C. graph 4 below
D. graph 5 below
Answer:
B. graph 3 below
D. graph 5 below
Explanation:
The original population of beetles (Graph 1) shows that most individuals had an intermediate phenotype between dark and light color. The graph expresses its highest point in the middle of the phenotypic ax, while the curve´s tails coincide with light and dark colors.
Probably, most of the trees inhabiting the whole island had some darkish color tone, which beetles used to camouflage and avoid predation.
When the company cleared the area and reforested, they planted light trees on one half and dark trees on the other half of the island. This change in the environment modeled the beetled phenotype, together with predation pressure.
If we consider the whole original population, we should say that it went under a disruptive selection. But if we think about the sides of the island separately, we could say that the population living on each side went under directional selection. We are not thinking about the whole population of beetled inhabiting the whole island, but two groups inhabiting each side of the island.
Graph 3 represents the beetles inhabiting the part of the land with dark trees. The population went under directional selection, and most of them turned into dark-colored to camouflage with the substrate in which they live.Graph 5 represents the beetles inhabiting the other part of the land with light trees. The population went under directional selection, and most of them became light-colored to camouflage with the substrate in which they live.What is the 1st phase of mitosis
prophase
interphase
metaphase
anaphase
How does climate change affected plants and animal species on earth?
Answer:
Humans and wild animals face new challenges for survival because of climate change. More frequent and intense drought, storms, heat waves, rising sea levels, melting glaciers and warming oceans can directly harm animals, destroy the places they live, and wreak havoc on people's livelihoods and communities.
Explanation:
hope this helps you
Does every gene combination show up in the offspring?
Answer:
Answer!
Explanation:
Okay so, genes come in different varieties; which are called allele. somatic cells contain two alleles for every gene, with one allele provided by each parent of an organism. BUT, an allele that is hidden, or not expressed by an organism, can still be passed on to that organism's offspring and expressed in a later generation.
During meiosis I, chromosomal pairs randomly align along the metaphase plate. Each chromosome pair member carries one allele for each gene. Every gene combination shows up in the offspring.
Chance determines which of the 23 homologous pairs of both parents' chromosomes are inherited. The possible combinations of 23 chromosomal pairs total 8,324,608. As a result, the chromosomal combinations of two gametes are almost never identical.
Actually, each parent has two distinct gene pools. Additionally, only half of each parent's DNA is passed on to their offspring. and that the randomness of the portion that is passed down. All of these factors work together to guarantee that every child has a distinct collection of genes.
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2_2 Breathing
Using complete sentences, explain how the muscular, skeletal, respiratory and circulatory systems work together to get oxygen from outside your body into your lungs.
Explanation:
Your digestive system absorbs water and nutrients from the food you eat. Your circulatory system carries oxygen, water, and nutrients to cells throughout your body. Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin.
Define lytic and lysogenic infections
Answer:
lytic involves the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell. lysogenic involves the incorporation of the viral genome into the host cell genome, infecting it from within.
Explanation:
Answer:
lysogenic infections are when the DNA is only replicated and lytic infections are when the DNA is multiplied and proteins are able to form
Explanation:
Plz help me well mark brainliest if correct!.
Answer:
C
Explanation:
A is not correct because all living things depend on natural resources
Water and air are not nonrenewable resources, so B is not correct
Forests are renewable since they can be replanted, so D is not correct
So this means C is the only right answer.
Hope this helps!
HURRY PLZ ⚠️Which of the following might require the use of a whisk?
a mixing pancake batter
C. chopping onions
b. making meatloaf
d. draining spaghetti
Please select the best answer from the choices provided
A
B
O O O O
Answer:
A I hope this helps you
Answer:mixing pancake batter
Explanation: you need to use a whisk to beat the eggs
What kingdom is made of organisms that are eukaryotic, plant-like, do not move, and do not carry on photosynthesis?
Answer:
protists
Explanation:
Answer:
Protists are organisms that are part of the biological kingdom called the protista. These organisms are not plants, animals, bacteria, or fungi. Protists are a very diverse group of organisms. They are basically all the organisms that don't fit into the other groups.
Explanation:
Transcription is required to make mRNA. During transcription, the following DNA
sequence is used as a template: GGGTTAC. What is the sequence of the complimentary
strand of mRNA?
Answer:
CCCAAUG
The T in the DNA template strand is replaced by U in RNA. And so base pairing between the DNA template strand and the new mRNA strand is G-C T-A and A-U, (Thymine in DNA is replaced by Uracil in RNA(
Which of the following likely has the largest particle size?
A.
parent material
B.
subsoil
C.
topsoil
D.
humus
Answer: A.
Explanation:
Parent material
Please help and thank you I do not want my points wasted
Cell wall hut not cell
,
Robert Hooke discovered
Organelles.
Answer:
Explanation:
WHAT IS YOUR QUESTION ??
In which of the following areas is the high biodiversity found there threatened? (Choose all that apply)
a. Columbia
b. Indonesia
c. Madagascar
d. India
Answer:
columbia, indonesia, and madagascar
Explanation:
i took the test
Among these alternatives, the country with high biodiversity found threatened is in Madagascar.
Threatened biodiversity in Madagacar70% of the species that inhabit these islands are totally unique in the world. Its great wealth of biodiversity ranges from
LemursMongoosesChameleonsBatsFoxes…In addition, during the last decade,
40 mammals69 amphibians61 reptiles42 invertebrates and 385 new plants have been discovered in its territory.Even so, 75% of its forests have disappeared in recent decades; therefore, urgent measures must be taken to prevent this phenomenon.
With this information, we can conclude thatthe country with high biodiversity found threatened is in Madagascar.
Learn more about biodiversity in brainly.com/question/13073382
Type the correct answer in the box. Spell all words correctly.
Complete the statement with the correct word.
-blank- is the act of reaping products at the right time of maturity.
Answer:
Harvesting
Explanation:
Im taking the test right now
Answer:
Harvesting
Explanation:
pretty sure its Harvesting sorry if I'm wrong
In 1980, Mt. St. Helens erupted. The resulting lahar flowed over a wide area of the Cascade Mountains. Which of these statements DOES NOT describe the effect of the volcanic eruption?
A. It affected the living and nonliving components of the ecosystem.
B. It removed populations of mammals from the mountainside.
C. It led to succession on the mountainside.
D. It affected only nonliving components of the ecosystem.
Correct answer is C
Have a great day!
2. The diagram below represents a food web composed of producers, consumers, and
decomposers.
A
B
D
Which group would represent the decomposer organisms?
1) A
2) B
3) C
4) D
Answer:
B
Explanation:
because that is the 2nd decompers
B group would represent the decomposer organisms. Therefore, the correct option is B.
What are Decomposers?Decomposers are organisms that convert decaying organic matter into more basic components. They are an important component of the nutrition cycle because they convert complex chemical substances, such as nitrogen and carbon, into direct nutrients that can be absorbed by plants and other living things.
Some species of bacteria, fungi and insects are specialized decomposers. These organisms are essential to maintaining healthy soil because they aid in the recycling of nutrients and the breakdown of organic matter, which would otherwise build up and cause nutrient imbalances. Decomposers, which break down dead organisms and aid in the containment of pathogens, may be important in disease prevention.
Therefore, the correct option is B.
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Freshwater ecosystems can be grouped as those that are still, those that are flowing, and those that contain salt.
Answer:
true
Explanation:
PLEASE HELP IF YOU KNOW ABT PUNNETT SQUARES!!! Mendel conducted a cross between purebred organisms. Use a punnett square to show a cross between a purebred pea plant with yellow seeds and a purebred pea plant with green seeds. What would be all of the possible genotypes of all the offspring?
A. 100% yy
B. 100% Yy
C. 50% Yy and 50% yy
D. 75% Yy and 25% yy
Answer:
B
Explanation:
I assume the plants with the yellow seeds are dominate (YY) , while the ones with green seeds are recessive (yy) (Since it would need to be recessive to be a different color than the dominate). The genes will always be heterozygous then, since it combines the genes from both parents.
Over generations of time, what would you expect a population of organisms that are well adapted to their environment to do?
Increase
Decrease
Become Extinct
Stay the same
Answer:
Increase.
Explanation:
Because they have to adapt if they don't the will be extinct.
Increased biodiversity results in a more sustainable ecosystem because -
Answer: Because, the higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem, and stability. It makes an ecosystem more sustainable because of the food web being stronger and the organisms providing a wide variety of functions.
I hope I answered you correctly and that it helps, I'm sorry if its wrong. Good Luck!
Explanation:
B. How do the roots of the trees may help in controlling soil erosion?
a.They keep the soil more intact
b. They go deep down the ground.
c. They absorb nutrients from the soil
d. All of the above
I believe the answer is d, all of the above ^^
Which of the following is true about the Calvin cycle?
Answer:
The following??
Explanation: