PLEASE HELP!!!!!!!!!!

Answers

Answer 1

Answer:

More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.

Related Questions

Phosphate is present in
A. DNA
B. RNA
C. Both DNA and RNA
D. Neither

Answers

Answer:

c)both DNA and RNA

explanation

When it is attached to a molecule containing carbon, it is called a phosphate group. It is found in the genetic material DNA and RNA, and is also in molecules such as adenosine triphosphate (ATP) that provide energy to cells. Phosphates can form phospholipids, which make up the cell membrane.

Both DNA an RNA hope this helps

Which of the following phenotypic classes reflect offspring that were generated as a result of a crossover event? Select all that apply. Select all that apply. wild type miniature wings garnet eyes miniature wings, garnet eyes SubmitRequest Answer Part B If 800 offspring were produced from the cross, in what numbers would you expect the following phenotypes? __wild type : __ miniature wings : __ garnet eyes : __ miniature wings, garnet eyes Enter your answer as the number of flies of each phenotype separated by a colon (example: 100:300:100:300).

Answers

Complete question:

The genes for miniature wings (m) and garnet eyes (g) are approximately 8 map units apart on chromosome 1 in Drosophila. Phenotypically wild-type females (m + g / mg +) were mated to miniature-winged males with garnet eyes.

Part A

Which of the following phenotypic classes reflect offspring that were generated as a result of a crossover event?

Select all that apply.

garnet eyes wild type miniature wings miniature wings, garnet eyes

Part B

If 800 offspring were produced from the cross, in what numbers would you expect the following phenotypes?

__wild type : __ miniature wings : __ garnet eyes : __ miniature wings, garnet eyes

Enter your answer as the number of flies of each phenotype separated by a colon (example: 100:300:100:300).

Answer:

Part A:

2. wild type (m+g+/mg)

4. miniature wings, garnet eyes (mg/mg)

Part B:

32:368:368:32

Explanation:

When calculating the recombination frequency, we need to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.

The map unit is the distance between the pair of genes for which every 100 meiotic products, only one results in a recombinant one.

So, en the exposed example:

PART A:

First, we need to Identify the gametes for the individual with the genotype m + g / mg + and label parental and recombinants

Gametes:

m+ g parental type m g+ parental type m+ g+ recombinant typem g recombinant type

Knowing that the only possible gamete type for the other parental is mg, then we can identify the phenotypic classes of the offspring that were generated as a result of a crossover event. These would be

2. wild type (m+g+/mg)

4. miniature wings, garnet eyes (mg/mg)

PART B:

We know that the total number of individuals equals 800.We also know that the distance between genes equals 8 MU.

To calculate the number of the phenotypes among the offsprings,

8 map units = 8% of recombination in total

= 8/2% m+g+/mg + 8/2% mg/mg

= 4% + 4%

The recombination frequency of m+g+/mg equals 0.04

The recombination frequency of mg/mg equals 0.04.

100% - 8% = 92% of parental in total =

= 92/2% of m+ g/mg + 92/2% m g+/mg

= 46% + 46%

The recombination frequency of m+g/mg equals 0.46

The recombination frequency of mg+/mg equals 0.46.

The frequency for each ggenotype is:

F (m+g+/mg) = 0.04 F (mg/mg) = 0.04. F (m+g/mg) = 0.46 F (mg+/mg) = 0.46.

The number of individuals with each genotype is:

m+g+/mg = 0.04 x 800 = 32mg/mg = 0.04 x 800 = 32m+g/mg = 0.46 x 800 = 368m g+/mg = 0.46 x 800 = 368

32 wild type : 368 miniature wings : 368 garnet eyes : 32 miniature wings, garnet eyes

Which of the following contains a single type of element?
gold
carrot

table salt
vegetable soup

Answers

Answer:

Gold

Explanation:

Gold is a singular element according to the periodic table. (Labeled Au), and it does not result from chemical bonds or multiple elements, like all other items listed here do.

I really hope this was helpful to you! Thanks and have a nice day!

Hannah and Becca are fraternal twins. They are both athletic. Hannah is a swimmer, and Becca is a runner. Which sister would have denser bones?

Answers

Hannah that is what I would answer....

According to the question, Hannah would have denser bones because her bone would get heavier due to water absorption through epithelial cells.

What is Bone density?

Bone density may be characterized as a type of measurement that significantly involves the accumulation certain amount of minerals contained in a certain volume of bone. This measurement is generally used to find out and treat serious bone loss, called osteoporosis.

When an individual is practicing in a swimming pool constantly for a longer period of time, it is observed that his/her bone density must be increased as compared to those who are running or performing other types of athletic activities.

Therefore, according to the question, Hannah would have denser bones because her bone would get heavier due to water absorption through epithelial cells.

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Two students gather information on the global effects of plastic found in ocean waters. Student A collected information from three peer-reviewed scientific journals on the internet while student B collected information from a local newspaper.
Which statement best describes the reliability of the students' research?

A
Student A's research is more reliable because it was gathered from peer-reviewed journals.
(Choice B)
B
Student B's research is more reliable because it came from a single source.
(Choice C)
C
Student B's research is more reliable because newspapers can only publish current research.
(Choice D)
D
Student A's research is more reliable because it came from the internet.

Answers

Answer:Student A’s research is more reliable because it was gathered from peer-reviewed journals.

Explanation:

In any experiment, reliabilty and validity is very important. The best statement that best describes the reliability of the students' research is that Student A's research is more reliable because it was gathered from peer-reviewed journals.

Reliability is simply known as an individual obtaining the same answer through the use an instrument to measure something more than once.

It is the degree to which research method gives stable and consistent results.

Reliability often deals with consistency of a measure. Ita types are test-retest reliability, internal consistency, and inter-rater reliability.

Did you forgot to add a picture?

think you forgot to add a picture but a variation stage is a method for dealing with rapidly varying environments without requiring mutation

what molecules main job is to carry the genetic code?

1. DNA
2. Protein
3. tRNA
4. rRNA

Answers

The answer I chose is DNA

In a biological reaction involving an enzyme, what does the active site of an enzyme bind to?
A. the inactive site of another enzyme

B. the catalyst

C. the active site of another enzyme

D. the substrate

Answers

Answer:substrate

Explanation: The enzyme 's active site binds to the substrate. Increasing the temperature generally increases the rate of a reaction, but dramatic changes in temperature and pH can denature an enzyme, thereby abolishing its action as a catalyst.

Answer:

The Substrate.

Explanation:

The enzyme 's active site binds to the substrate. Increasing the temperature generally increases the rate of a reaction, but dramatic changes in temperature and pH can denature an enzyme, thereby abolishing its action as a catalyst.

https://courses.lumenlearning.com/boundless-biology/chapter/enzymes/#:~:text=The%20enzyme%20's%20active%20site,its%20action%20as%20a%20catalyst.

Plus I took the test on k12.

Which mutation(s) cause the product to be a non-functional protein?

Answers

Answer:Nonsense mutations produce truncated and frequently nonfunctional proteins

Explanation:

Volcanoes are part of which sphere of Earth?

a. biosphere
b. geosphere
c. hydrosphere
d. atmosphere

Answers

Its d) Atmosphere .....))

Diagrams 1 and 2 show cells from an organism with a diploid chromosome number of 4.
> >
x x
1
2
Refer to the illustration above. Which of the cells will be a diploid cell at the completion
of division?

Answers

Yes it is easy my guy it’s b just wait til u get to chemistry

Both the cells will be diploid cells at the completion of division. Therefore, the correct option is B.

In diagram 1, the chromosomes are in the metaphase of cell division, that is aligned at the centre of the cell. In the next phase which is anaphase, these chromosomes are pulled apart by the spindle fibres in opposite directions. As a result, the chromosomes are split into half and each cell gets half the number of chromosomes in the form of chromatids. Thus, each cell will have 4 chromatids.

In diagram 2, the chromosomes are in the early anaphase stage. When the cell will split into two, each daughter cell will have 2 chromosomes. These chromosomes separate in the telophase and thus, each cell will have 4 chromatids.

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Cork cambium is the protective tissue of a stem. What mechanism does it use to protect the stem? HINT: It's not A.

A. Deposits of water in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens.

B. Deposits of minerals in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens.

C. Deposits of oils or waxes in the cork cambium act as a barrier and protect the stem from water loss, physical damage, and invasion of pathogens.

Answers

Answer:

The answer should be C. The cambium produces a waxy substance called suberin which repels water so..

Answer:

B. DEPOSITS OF MINERALS IN THE CORK CAMBIUM ACT AS A BURRIER AND PROTECT THE STEM FROM WATER LOSS, PHYSICAL DAMAGE, AND INVASION OF PATHOGENS..

Explanation:

A & C is wrong! just took the test and got it wrong. neither one is right. THE ANSWER IS B.

Please answer fast!
What are the two arteries where you can check your
pulse?
A. brachial and dorsalis
B. facial and femoral
C. carotid and radial
D. temporal and auricular

Answers

carotid and raidal !

Answer:

Explanation:

Because the Carotid is your wrist and Radial is your neck

Identify the correct sequence of molecules, as a gene goes from coded information in the nucleus, to the product the cell wants to make.

A. DNA to mRNA to tRNA to Protein
B. DNA to tRNA to mRNA to Protein
C. DNA to tRNA to Protein to mRNA
D. Protein to mRNA to tRNA to DNA

Answers

Answer:

your answer is A

Explanation:

DNA -> messenger (M) RNA -> transfer (T) RNA -> to protein.

The diagram above represents the phases of the moon. Position 1 represents the
new moon. Positions 2 through 8 represent the phases of the moon that follow.
Which phase does position 8 represent?

Answers

Answer:

waxing crescent

Explanation:

Position 8 represents waxing crescent phase. It is observed after a new moon and can be observed until the first quarter of moon.

What are the phases of moon?

The waxing and waning nature of the moon is responsible for its various phases. This is due to the fact that moon is the only natural satellite of the earth. It revolves around the earth in a fixed orbit.

As earth revolves around the sun, the sunlight that falls on moon makes us visble those parts. Thus, it appears that moon is changing its shape.

A lunar month which is of 29.5 days usually is contains four primary and four intermediate phases. It is described as: New moon, Waxing crescent moon, First quarter, Waxing gibbous moon, Full moon, Waning gibbous, Last quarter and Waning crescent moon.

These phases have specific time in which they can be observed in the sky. New moon is an exception, as no part of the moon is visible then.

The phases of the moon are therefore considered as astronomically important.

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Which of the following was NOT one of Darwin's
arguments for his theory of natural selection?

A) There is variation among individuals in a
population

B) Much variation is heritable

C) Populations possess an enormous reproductive
potential

D) Resources are abundant

E) Population sizes remain stable

Answers

Answer:

option D) resources are abundant.

Explanation:

according to Darwin resources are small. individuals of a population compete for these resources.

How many grams of starch would you need to make 500ml of a 5% solution?

Answers

Answer:- 25 grams.
Solution:- We are asked to make 500 mL of 5% glucose solution. The percentage is the mass by volume percentage. 5% glucose solution means 5 grams of glucose present in 100 mL solution. From this given information, we can easily calculate the mass of glucose required to make 500 mL solution.
The calculations are shown as:

500mL*5g/100mL

= 25g
So, 25 grams of glucose are required to make 500 mL of 5% solution.

What is Adhesion

A. The ability of molecules to stick to molecules that are the same

B. The ability of molecules to stick to any molecules

C. The ability of molecules to not be able to stick to any molecules

D. The ability of molecules to stick to different molecules

Answer:

Explanation:

What is one of the causes of mechanical weathering?
A. acid rain
B. oodation
C. animal actions
D. carbon dioxide

Answers

Answer:

answer is A hope it helps if it dont what can i help you with later.

Explanation:

Which is a possible outcome for future generations of farmers if the same crop is planted on the same patch of land every year?

the soil could become infertile due to the lack of time for nutrients to be reinserted

the crops could become resistant to pests and insects through natural selection

the soil could become drought resistant due to the shallow root structure that would form

the crops could begin to change their genetic makeup due to mutations from the parent plants

Answers

Answer:

Explanation:

I hope this helps :)

The soil could become infertile due to the lack of time for nutrients to be reinserted. So, the correct option is (A).

What is Soil?

Soil is also defined as earth or dirt which is a mixture of organic matter, minerals, gases, liquids and organisms which together support life. These are distinguished from silt by restricting the former term specifically to displaced soil.

It provides many important services for both people and the planet by putting food on our plates, purifying our water, protecting us from floods and combating drought. Soil is also important in combating climate change because it captures and stores large amounts of carbon. Without healthy soil there is no food security.

Whereas growing the same crop year after year reduces the availability of certain nutrients and depletes the soil. Monoculture leads to soil exhaustion when the soil becomes deficient in these nutrients.

Thus, the soil could become infertile due to the lack of time for nutrients to be reinserted. So, the correct option is (A).

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Which one of these is not a human effect on the water cycle?

Developed areas prevent soil from absorbing rainwater

Precipitation is increasing in deserts due to an increase in water use

Air pollutants also wash back into the land and water bodies from precipitation

Storm water runoff carries pollution

Answers

Answer:

Precipitation is increasing in deserts due to an increase in water use

Explanation:

Just see for yourself

The one that is not a human effect on the water cycle is precipitation is increasing in deserts due to an increase in water use. The correct option is B.

What is the water cycle?

The continual movement of water on, above, and below the Earth's surface is referred to as the water cycle, also known as the hydrologic cycle or the hydrological cycle.

One of the most essential elements of human life is water. There is water all over. It passes through your house as well as rivers, mountains, lakes, and oceans. Without water, neither humans nor any other species could survive.

In the majority of deserts, the air's moisture content is very low. In the dry air, light raindrops frequently evaporate before they can reach the ground. Rainstorms can occasionally appear as ferocious cloudbursts.

Therefore, the correct option is B. Precipitation is increasing in deserts due to an increase in water use.

To learn more about the water cycle, refer to the link:

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