12. Which is NOT a natural cause of extinction?
A. Disease
B. Catastrophic events
C. Introduction of new species
D. Competition due to overpopulation

24. Which is NOT true about energy transformation?
A. Energy is essential to all organisms.
B. Food contains energy that is needed by all organism.
C. Heterotrophs feed on autotrophs and other heterotrophs to gain energy.
D. Autotrophs do not need energy because they can produce their own food.

23. Which is the CORRECT sequence of events in cellular respiration?
A. Glycolysis - fermentation - Krebs Cycle
B. Glycolysis - Krebs Cycle - Electron Transport
C. Krebs Cycle - Electron Transport - Glycolysis
D. Krebs Cycle - Glycolysis - Electron Transport

2. In humans there are four types of blood; type A, type B, type AB and type O. A person with a genotype of IaIa or Iai will have blood type_____?
A. A
B. B
C. O
D. AB

4. A couple has four children, one son and three daughters. What is the chance that the fifth child will be a daughter?
A. ¼
B. ½
C. ¾
D. 1/5

22. Cellular respiration releases energy by breaking down_______.
A. ATP
B. water
C. carbon dioxide
D. food molecules

5. A man is colorblind but there is no history of this disorder in his wife’s family. What is the chance that their son is color
blind?

A. 0
B. 25%
C. 75%
D. 100%

25. Which BEST summarizes the process of respiration?

A. Water + Carbon Dioxide ( light) sugar + oxygen
B. Sugar + Oxygen (enzymes) water+ carbon dioxide +energy
C. Water + Sugar ( light ) carbon dioxide + oxygen
D. Oxygen + Water (enzymes) sugar + carbon dioxide + energy

1. A father with blood type AB and a mother with blood type O will probably produce offspring with a blood type ___. *
A. A
B. B
C. A or B
D.AB or O

6. What is a sex- linked trait that results in the inability to have normal blood clotting?
A. baldness
B. color blindness
C. diabetes
D. hemophilia

11. What causes species extinction?
A. Pollution and reforestation
B. Reforestation and carbon emission
C. climate change and over consumption
D. conservation and consume

18. The pigment molecules responsible for photosynthesis are located in the _______? *

A. Mitochondria
B. Cytoplasm of the cell
C. Stroma of the chloroplasts
D. Thylakoid membrane of the chloroplasts

13. Which part of a leaf contains most of the chloroplasts?

A. Lower epidermis
B. Palisade mesophyll
C. Spongy mesophyll
D. Upper epidermis

19. At optimum light intensity, which atmospheric gas most directly influences the rate of photosynthesis?
A. Nitrogen
B. Oxygen
C. Sulfur
D. Carbon Dioxide

14. What part of the leaf is this tiny opening in the lower epidermis which makes it rough and responsible for the entrance and exit of gases in plants?

A. xylem
B. phloem
C. stomata
D. guard cells
16. In which part of the chloroplast does light reactions of photosynthesis takes place?

A. Grana
B. Stroma
C. Inner membrane
D. Outer membrane

17. Which is NOT needed to make food in plants?
A. Flower
B. Sunlight
C. Chlorophyll
D. Carbon Dioxid

8. Color-blindness is inherited as a sex-linked recessive trait. If a normal woman, carrier of the gene marries a man with normal color vision. What would be the expected phenotype of their children with reference to color-blindness?
A. All color-blind
B. 2 carriers, 2 color-blind
C. 1 normal, 3 carriers
D. 2 normal, 1 carrier, 1 color-blind

3. Blood type O has both antibodies A and antibodies B in the plasma but has no antigen on its erythrocytes or red blood cells. That is why Blood Type O is considered UNIVERSAL______.
A. Blood
B. Donor
C. Marker
D. Recipient

7. Melvin’s thinning hair is like that of his father. This characteristic of baldness is due to
A. multiple alleles
B. sex-linked
C. sex-influenced
D. sex-limited​​

Answers

Answer 1

Answer:

A bowling ball weighs 15 pounds on Earth and weighs 4 pounds on the planet Saturn. You could determine a 100–pound earthling's weight on Saturn using the proportion:

Explanation:

a.

StartFraction 15 Over 4 EndFraction = StartFraction b Over 100 EndFraction

c.

StartFraction 4 Over 15 EndFraction = StartFraction 100 Over b EndFraction

b.

StartFraction 15 Over 4 EndFraction = 100 Over b EndFraction

d.

either a or c


Related Questions

Which procedure will determine if water temperature affects the weathering of sedimentary rocks?

Answers

Answer:

Sedimentary.

Explanation:

Sedimentary will determine if water temperature affects the weathering of sedimentary rocks.

How does lack of water conservation affect the hydrological cycle

Answers

[tex]⇒[/tex]

Human activity such as the burning of fossil fuels has an effect on the overall increase of the Earth's temperature. Raising the Earth's temperature means that there is an increase of evaporation, melting of land and sea ice, and impacts on other processes of the water cycle that adversely affect the climate on Earth.

- BRAINLIEST answerer

what is the importance of predation in an ecosystem​

Answers

Answer:

Without predatation, things wouldn't eat each other.

Rabbits won't eat grass, Wolves won't eat Rabbits, and so on...

If it were to continue this way there wouldn't be a single animal on this planet. (everything living except plants that only rely on the sun.)

It's a food chain. A CHAIN. Each varible depends on each other.

And a food chain has a direct impact on the ecosystem.

For example:

No rabbits mean there is so many grass and carrots left behind

No wolves means there are too many rabbits

So that means

No wolves

Whatever eats the wolves wont be alive

Whatever eats THAT wouldn't be alive

What features distinguish annelids from roundworms?

Answers

Answer:

Annelids have a well developed mesoderm while round worms lack a mesoderm.

Annelids are segmented worms whereas round worms are not segmented.

Annelids have a true coelom while round worms have a pseudo coelom.

which is a type of sequence identified by gene annotation?

Answers

Answer:

DNA annotation or genome annotation is the process of identifying the locations of genes and all of the coding regions in a genome and determining what those genes do. Hope this helps!!!

Explanation:

6. What are convection currents?

Answers

Convection currents are fluid that result from convention this can be a Pacific plate floating

evaluate the statements below and determine which is the best reason that bacterial cells use operons and polycistronic rna.

Answers

Given what we know about bacterial cells and their genetic mechanisms we can confirm that they use operons and polycistronic RNA for efficiency.

Bacterial cells are vastly different from human or animal cells. Some of these differences include:

Lack of compact DNALack of organelle surrounded by plasmatic membranesThey have cell wallsMay possess flagella

and many others.

Among these differences is the way in which they encode for the proteins the bacteria will produce. Unlike human cells, bacteria use polycistronic RNA. Where a human strand of mRNA will carry the genetic message to create one protein, the polycistronic mRNA of a bacterial cell will provide the information necessary to create multiple distinct proteins.

Bacteria use this in conjunction with operons, to create very efficient protein manufacturing processes. Operons are sections of DNA in which proteins with similar functions are grouped together in order to make it easier to create the polycistronic mRNA strands.

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Which organism has lungs?
frog
insect
fish
jellyfish

Answers

Frog



Ignore this it making me doing this

Okay so on Mine**craft, I have a world on my ipad. But, I recently downloaded java edition on my macbook. Is there some way I could transfer it to my mac?

Answers

Press “Open World”, select your Bedrock world as the source, then press “Convert” on the left. Press “Select Output World”, then choose the Java world you created. When ready, press “Convert” to begin the process.

I searched it and found this, let me know if it helps!

The levels of organization within an organism are atom, molecule, __________, tissue, __________, and organ system.

atomic number; element
cell; organ
compound; kidney
nucleus; membrane
Question 2(Multiple Choice Worth 4 points)
(04.01 LC)

Which is the smallest unit of life?

Organs
Molecules
Cells
Atoms
Question 3(Multiple Choice Worth 4 points)
(04.01 LC)

A substance that cannot be broken down into a simpler substance is called an __________.

animal
organ system
element
organism
Question 4(Multiple Choice Worth 4 points)
(04.01 LC)

Which is an example of a molecule?

Muscle tissue
Protein
Stomach
Unicellular organism
Question 5 (True/False Worth 4 points)
(04.01 LC)

Nonliving things have cells.

True
False
Question 6(Multiple Choice Worth 4 points)
(04.01 LC)

Which level of organization is formed when a group of organs work together to perform complex functions?

Molecule
Organ
Organ system
Tissue
Note: please answer correctly please do not send file link those do not work for me

Answers

Answer:

1. Cell; organ

2. Cells

3. Element

4. Protein

5. False

6. Organ system

Explanation:

40 points!!!!!!Select the correct answer from each drop-down menu.
Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrogen
and phosphorus, are used to fertilize crops. Excessive use of these compounds causes
______ , which leads to
_____ in bodies of water.

Answers

Answer:

eutrophication and algal growth

When a star becomes a red giant it will
1.shrink
2.shrink and cool
3.shine hotter
4.expand and cool

Answers

Stars spend approximately from a few thousand up to 1 billion years as a red giant. The helium in the core eventually runs out and the fusion process stops. The star then shrinks until a new helium shell reaches its core.

Therefor the answer is 2.shrink and cool

I hope this helps!

Answer:

Shrink an cool I took the test

What is the typical configuration of chromosomes in eukaryotic cells?​

Answers

Eukaryotes typically possess multiple pairs of linear chromosomes, all of which are contained in the cellular nucleus, and these chromosomes have characteristic and changeable forms. During cell division, for example, they become more tightly packed, and their condensed form can be visualized with a light microscope.

what parts of a cell are most likely involved with inherited traits?

Answers

Chromosomes are most likely involved with inherited traits.

What are Chromosomes?

A chromosome is defined as the long DNA molecule which contains part or all of an organism's genetic material. Most chromosomes consist of very long thin DNA fibers coated with packaging proteins where the most important of these proteins in eukaryotic cells are histones.

These structures are found in the nucleus of cells which contain long pieces of DNA. DNA is the material that holds genes and is the building block of the human body.

Chromosomes also contain proteins which help the DNA stay in the proper shape.

Thus, Chromosomes are most likely involved with inherited traits.

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Which statement correctly describes mitotic cell division?​

Answers

Answer:

Explanation:

“Although part of your question is missing, you might be referring to this full question:

Which of the following correctly describes how mitosis and meiosis are similar?

A. Sister chromatids segregate to opposite poles of the cell during both mitosis and meiosis.

B. Crossing over occurs between homologous chromatids during both mitosis and meiosis.

C. Both mitosis and meiosis produce diploid daughter cells.

D. Both mitosis and meiosis produce genetically identical daughter cells.”

The statement that correctly describes how mitosis and meiosis are similar is “Sister chromatids segregate to opposite poles of the cell during both mitosis and meiosis”.  

Mitosis and Meiosis both are classified under cell division that tends to take place in humans and certain other animals. Both Mitosis and Meiosis have both differences and similarities in the way they result in new cells with varying goals and slightly different outcomes. Some of the similarities between meiosis and mitosis are:

During both mitosis and meiosis, cells must duplicate their DNA and pull them apart into 2 sets and further place the sets on each end of itself and then divide down the middle part

Both meiosis and mitosis results in fresh new cells depending on the genes of their parent cells  

Thus, we can conclude that the statement that correctly describes how mitosis and meiosis are similar is “Sister chromatids segregate to opposite poles of the cell during both mitosis and meiosis”. Hence, option A is the correct answer.

Methylation is an example of(1 point)

gene mapping

gene editing

epigenetics

DNA replication

Answers

Methylation is an example of epigenetics that is present in the third option, and this methylation helps in the expression of the gene or the repression of the gene product in the cell.

What is the importance of methylation in the cell?

Methylation has many functions, such as in gene expression, where it can turn genes on or off by altering the way that DNA is packaged, such as by tightening or loosening the gene so that enzymes can access it; in DNA stability, methylation can help protect the genome from damage by stabilizing the DNA structure; and in epigenetic regulation, where it plays an important role.

Hence, methylation is an example of epigenetics that is present in the third option, and this methylation helps in the expression of the gene or the repression of the gene product in the cell.

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Answer:

C. Epigenetics

Explanation:

:)

How can the locations where ancient fossils are found to be used as evidence for continental drift?

Answers

Answer:

his continental drift

Explanation:

Wegener used fossil evidence to support his continental drift hypothesis. The fossils of these organisms are found on lands that are now far apart. ... Wegener suggested that these creatures were alive in warm climate zones and that the fossils and coal later had drifted to new locations on the continents.

What are c3, c4, and cam plants?.

Answers

C3 photosynthesis produces a three-carbon compound via the Calvin cycle while C4 photosynthesis makes an intermediate four-carbon compound that splits into a three-carbon compound for the Calvin cycle. Plants that use CAM photosynthesis gather sunlight during the day and fix carbon dioxide molecules at night.

Name the following:
The cell that covers a large area and is broad and flat in shape.​

Answers

Answer:

skin is the answer please and brainlest pleaaasssseeee

a single base deletion within the open reading frame of a gene’s dna sequence can result in ____________.

Answers

Answer:

Replacement of multiple correct amino acids with alternative acids

Explanation:

Replacement of multiple correct amino acids with alternative acids

Explain how a father with brown eyes and a mother with blue eyes can have children
with either brown or blue eyes. Remember to use complete sentences and correct
grammar.

Answers

Answer:

Brown eyes are a dominant trait.

Explanation:

Brown eyes are a dominant trait, and blue eyes are a recessive trait. If the father has brown eyes, they can have either a BB or Bb genotype; the mother must have a bb genotype in order for her eyes to be blue.

Refer to the Punnett Square below to see how it's possible for this mother and father to produce children with both colored eyes.

true or false. sequence read 2 is identical to the reference genome.

Answers

Answer:

False

Explanation:

A reference provides a haploid mosaic of different DNA sequences from each donor.

a section of a dna molecule that controls the thumb is called a

Answers

Answer:

gene

Explanation:

which lipid composition option has the least membrane fluidity?

Answers

Answer:

I think it would be saturated fatty acids

how do hormones from the hypothalamus get to the anterior pituitary gland?

Answers

Answer:

Hypothalamic releasing and inhibiting hormones are carried directly to the anterior pituitary gland via hypothalamic-hypophyseal portal veins. Specific hypothalamic hormones bind to receptors on specific anterior pituitary cells, modulating the release of the hormone they produce.

How to find number of alleles present in a population.

Answers

Answer:

Count how many times the allele appears.

Explanation:

Dividing also becomes part of it.

what single factor limits the size that most cells are able to attain

Answers

Answer:

The surface-volume ratio.

Which two structures engage to create a muscle contraction?.

Answers

Muscle contraction occurs when actin connects with myosin.

Muscle contraction occurs thanks to an action potential, which transmits a stimulus to the interior of the muscles.

For fiber tension to occur, the myosin head must bind with actin, slip, release, and then connect with another actin.

This electrical signal allows the actin and myosin proteins to move, thereby generating contraction of the muscles.

Therefore, we can conclude that myosin is a protein found in muscle fibers in order to bind to actin protein and cause muscle contraction.

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where does sperm production occur within the testis?

Answers

Answer:

seminiferous tubules

Explanation:

Sperm production happens in coiled structures known as seminiferous tubules.

Your body's 2nd choice of food group to break down for energy?

Answers

Fat

When body doesn't get carbs it uses fat.

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