Answer:
Endosymbiotic theory is supported by similarities between chloroplasts and * Cyanobacteria.
Explanation:
The endosymbiotic theory proposes that mitochondria and chloroplasts were once free-living bacteria that were phagocytized by another cell but not digested. These bacteria got to adapt to their host, and both cells became interdependent.
Both organelles have many similarities with other free-living bacteria. Chloroplasts probably derivate from cyanobacteria because both cells absorb sunlight, produce ATP, and organic molecules. And mitochondria derivate from rickettsias because they produce ATP in the same way by using the Krebs Cycle and Oxidative Phosphorylation.
From the phagocytosis moment, these two cells became so dependant on each other, they could not survive without the other one.
Chloroplasts and mitochondria share some traits with free-living bacteria, that support the theory.
• Both organelles present their genetic material. This DNI is independent of the cells´ DNA, is bi-catenary and circular, identical to the bacterial DNA, and very different from the one of the eukaryotic cells.
• Both organelles divide by binary fission, not by mitosis, and can synthesize their ribosomes and organelles.
• Both organelles present a double membrane, a characteristic that reinforces the idea of being phagocyted. The internal membrane looks identical to the bacterial membrane, while the external membrane looks like the eukaryotic one.
In fact, in this internal membrane are placed the energy centers, just as it occurs in bacterias membrane.
• Finally, the sizes of the organelles are similar to the size of some procaryotes
Check picture please.. help me !!!!
Answer:
a. HH HH
HH HH = 100% black
b. Hh Hh
Hh Hh = 100% blue
c. Hh Hh
HH HH = 50% white or black & 50% blue
Explanation:
I did biology last year as a freshman... hopefully this is correct. <3
Using the allele symbols in the table, identify the genotype of a guinea pig that is recessive for hair length, heterozygous for hair color, and homzygous dominant for hair texture.
Answer:
Hair length: hh
Hair color: Bb
Hair Texture: RR
Explanation:
In order for the recessive gene to show for hair length, two of the same alleles must be present, so, in this case, hh.
The question states "heterozygous for hair color." This tells you that the genotype will be Bb. Heterozygous means two of the different alleles. This is different from homzygous.
The question states "homzygous dominant for hair texture." This tells you that it will contain two of the same alleles. The question also tells you that it is homzygous dominant, which means there will be two of the same dominant alleles, so, RR.
Fungi can appear in what two forms?
Yeast and Hyphae
Explanation:
All of the following are examples of chemical weathering reactions/agents except?
Answer:
15: A
Explanation:
Because abrasion is physical weathering while the other use the CHEMICAL agents of oxygen hydrogen and sulfuric acid
100 points (50 each) How do workers decide when to set a controlled burn, and how do they know if they have been successful?
Answer:
It is very important to have the latest and most updated weather conditions available before starting the burn. Relative humidity is an important factor to consider when planning a controlled burn. If the relative humidity is below 50%, the dryness of the grass is prone to causing very hot fires
Refer to Figure 12-2. Which of the following is the series of amino acids encoded by
the piece of mRNA: AUG UCU UGC
A
val-ser-leu
B
meth-ala-leu
с
thre-leu-gly
D
meth-ser-cys
Answer: D
Explanation:
Okay so look at the diagram. Start from the middle and work your way out.
AUG: I find A in the middle (the first four) and then go to the part of the diagram that has U right under the last letter you had, so A. And do the same for U, and you should get methionine.
Repeat this process for the other two.
describe an acquired trait, and how is it related to the environment
Answer:
Explanation:
A trait that is not inherited; one resulting from the effects of the environment. See also: trait.
An acquired characteristic is a non-heritable change in a function or structure of a living organism caused after birth by disease, injury, accident, deliberate modification, variation, repeated use, disuse, misuse, or other environmental influence.
Environmental factors influence traits in plants and animals. These traits include things like weight, height, size, and color. If a child does not get proper nutrition, their height may be stunted as an adult.
Which of the following organs is a part of the circulatory system? A. liver B. kidney C. stomach D. heart
Answer:
The heart would be the answer
Answer:
(D) Heart
Explanation:
Melanie and Brody want to find out whether
wooden bats or metal bats allow baseballs to
travel farther.
Melanie asks five different people to hit
ten balls with each type of bat and she
measures the distance each ball travels.
Brody researches the physical properties
of the pine wood and the aluminum metal
and then estimates the possible distance
a ball could travel with a given force.
Which student conducted an experiment
and which student conducted an
investigation? Explain your answer.
Answer:
Experiment = Melanie. Investigation = Brody
Explanation:
Melanie conducted an experiment because she performed an actual test.
Brody's thing was an investigation because he did research.
All of the following are used by taxonomists to create evolutionary links between species EXCEPT
Select one:
a. analogous structures
b. the fossil record
c. molecular data
d. vestigial structures
The fossil record, molecular data and vestigial structure would help taxonomists to create evolutionary links between species except analogous structures.
What do you mean by fossil record?"A fossil record is a group of fossils which has been analyzed and arranged chronologically and in taxonomic order."What is molecular data?"Molecules such as sequence of DNA used in studies of intra-specific variation and studies of similarity among species."What is vestigial structure?"Structures that have no apparent function and appear to be residual parts from a past ancestor are called vestigial structures."What do you mean by taxonomists?"Taxonomists are professionals who specialize in classifying and sorting information based on similar characteristics and patterns."What are analogous structures?The structure of different species performing similar function but are from different origin (do not have common ancestor).The fossil record, molecular data and vestigial structure all would help taxonomists to find evolutionary links between species where through analogous structures no links would be created.
Hence, the correct option is a. analogous structures.
To know more analogous structures here
https://brainly.com/question/24264111
#SPJ2
The Office of Ecology and Natural Resource Conservation works to _______.
Answer:
c.) develop foreign policy regarding the sustainable use of natural resources
Explanation:
Found on quizl
One partner in a sexual relationship has HIV. How can the couple prevent the other partner from contracting HIV?
Answer:
using a condom
Explanation:
The crust is the thickest layer of the earth true or false
Answer:
The crust is not the thickest layer of earth
:)
Answer:
No
Explanation:
The core is the thickest layer of the earth! Which the crust is relatively thin compared to the other layers
A change in _____________ and _____________ cause the enzyme to denature.
Explanation:
A change in temperature and PH cause the enzyme to denature.
If u like my answer just give brainliest please.
Mutations to the MGR gene can lead to one of several forms of the genetic muscle and tissue disorder called Gaucher’s Disease. Which of the following treatments would best target the damaged gene?
Radiation
Chemotherapy
Cloning
Gene Therapy
Answer:
Pretty sure its Gene Therapy
Explanation:
If a gene has only one allele, how many different traits can the allele produce?
A. 2
B. 1
C. 3
D.O
PLEASE ANSWER 50 POINTS!
Answer:
B) an allele is a form of a gene. If there is only 1 allele, there is only 1 phenotype.
Explanation:
Ethics focuses on moral issues. Using ethics, people attempt to determine what is good and bad or what is right and wrong.
Which of the following questions involves ethical considerations?
A.
Should people be permitted to have in vitro fertilization?
B.
Should unborn children be tested in the womb for genetic disorders?
C.
Should scientists be permitted to genetically modify plants?
D.
all of these
Answer:
D. all of these.
Explanation:
All of these are the questions that involves ethical considerations because the method used in these questions are not doing naturally. Vitro fertilization is the fusion of woman's egg with the sperm of male outside the uterus of women which is unethical. Testing of unborn children in the womb for genetic disorders and producing genetically modify plants are also unethical because it does not occur naturally. It occurs due to intervention of humans in God's creation.
The biosphere includes all the water in the oceans.
A.) FALSE - it contains all the living organisms
B.) FALSE - it contains all the land and soil
C.) FALSE- it contains all the gases
D.) True
Answer:
C.) FALSE- it contains all the gases
hope it is helpful to you
Answer:
The biosphere includes the outer region of the earth (the lithosphere) and the lower region of the atmosphere (the troposphere). It also includes the hydrosphere, the region of lakes, oceans, streams, ice and clouds comprising the earth's water resources.
how humans changed the balance of the park ecosystem.
Answer:
Changing the environment can upset the balance in ecosystems.
Explanation:
Maintaining homeostasis keeps the internal environment in the body functioning properly. Many organ systems work together and maintain energy homeostasis. The digestive system is concerned with processing the food that we take in to provide essential nutrients to the rest of the body. Which of these body systems works most directly with the digestive system in the absorption of nutrients?
A) urinary system
B) endocrine system
C) respiratory system
D) cardiovascular system
Answer:
D
Explanation:
However, the organ systems also work together to help the body maintain homeostasis. For example, the cardiovascular, urinary, and lymphatic systems all help the body control water balance. The cardiovascular and lymphatic systems transport fluids throughout the body and help sense both solute and water levels and regulate pressure.
Which of the following is not a health risk associated with ozone?
A) skin cancer
B) cataracts
C) obesity
D) respiratory illneses
Answer:
obesity
Explanation:
The following that is not a health risk associated with ozone is obesity. The correct option is C.
What is ozone?Ozone is a trioxygen inorganic molecule that is of pale blue color. The ozone layer is present in the stratosphere of the atmosphere. It absorbs the UV rays coming from the sun. Thus, it is a protective layer that saves from UV rays.
UV rays are harmful rays that affect health. It creates skin problems and many other health problems. So the ozone layer protects us from UC radiation, it acts as a shield.
Obesity is a condition in which the body becomes fat. It happens with the accumulation of fat in the body. This does not occur with UV rays. It occurs due to food. So this will not be a health risk associated with ozone.
Thus, the correct option is C. obesity.
To learn more about ozone, refer to the link:
https://brainly.com/question/3153999
#SPJ2
Which of the following can be described as the following: Similar development of a trait in distinct species, originating from a common ancestral condition
A Coevolution
B Parallel Evolution
C Divergent Evolution
D Convergent Evolution
How is efficiency related to systems?
describe each step of endocytosis
Explanation:
The Basic Steps of Endocytosis
The plasma membrane folds inward (invaginates) forming a cavity that fills with extracellular fluid, dissolved molecules, food particles, foreign matter, pathogens, or other substances.
The plasma membrane folds back on itself until the ends of the in-folded membrane meet. This traps the fluid inside the vesicle. In some cells, long channels also form extending from the membrane deep into the cytoplasm.
The vesicle is pinched off from the membrane as the ends of the in-folded membrane fuse together. The internalized vesicle is then processed by the cell.
Please help with this, will give brainlist to best answer
Answer: A: Peripheral
Explanation:
Small frogs living in a marshy region feed on small insects in the region. The relationship between the frogs and insects is a relationship.
Answer:
Parasitism
Explanation:
This is because parasitism is a type of relationship that exist between organisms where one which is the predator feed on the prey thereby causing harm or injury or death to the prey. In the question, small frogs are the predators and insects are the prey, therefore the predators cause harm to the prey, meaning they only benefits from the farm they cause the prey.
Explain why a topographic map has a key.
Topographic maps represent the locations of geographical features, such as hills and valleys.
What do you mean by topographic maps?Topographic maps use contour lines to show different elevations on a map. A contour line is a type of isoline; in this case, a line of equal elevation.
In modern mapping, a topographic map or topographic sheet is a type of map characterized by large-scale detail and quantitative representation of relief features, usually using contour lines.
A topographic map is a detailed and accurate illustration of man-made and natural features on the ground such as roads, railways, power transmission lines, contours, elevations, rivers, lakes.
Learn more about topographic maps:
https://brainly.com/question/29764663
#SPJ2
In Western Pennsylvania, and many other areas, deer are becoming a pest.
a.) True
b.) False
Over time, data that support the successful evolution of a species would include observations that describe
More body cells and more genetic changes happening
I've been looking around for the answer in this interactive website that was included within to answer these questions but, I couldn't find it and I'm wasting time looking for it.
Answer:
Iron is what mercury is mostly made of