Explain how animals may have influenced the evolution of terrestrial plants and vice versa​

Answers

Answer 1
Answer:

Microsporangium give microspores by meiosis.

Microsporangium give microspores by meiosis each microspores forms a pollen grain Pollen wall is secreted by surrounding sporophytes tissue Enclosed male gametophyte produces sperm by mitosis.

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Related Questions

I need help asap
I need help asap​

Answers

Answer:

c

Explanation:

i dont care

10.
All of the following are examples of specialized cells except

Answers

Answer:

Zygote

Explanation:

Natural selection is most likely to be the cause of a change in a population's
allele frequencies when:
A. the ecosystem experiences few disturbances,
B. the population drops below its carrying capacity.
C. the predators are removed from the ecosystem,
D. the population has reached its carrying capacity.
PLEASE HELP URGENT

Answers

Answer:handheld c

Explanation:bend c smlOc

C is probably the right answer to me

8. Two rabbits are bred together. One is heterozygous for agouti coat
(genotype: Cch) and the other is albino. What are the possible phenotypes
of their offspring? Construct a Punnett square to support your answer.

Answers

Answer:

- Parental cross = Cch  x chch  

- F1 = 1/2 Cch (agouti coat); 1/2 chch (albino coat) >> 1:1 phenotypic ratio

Punnett  square:  

          ch         ch

C       Cch       Cch

ch    chch      chch

 

Explanation:

A heterozygous individual is an individual who has two different gene variants (i.e., alleles) at a particular locus. In this case, individuals having the "agouti coat" trait are heterozygous carrying both 'C' and 'ch' alleles. On the other hand, a homo-zygous individual has the same allele at a given locus (here, the 'chch' genotype associated with the albino phenotype). Therefore, as observed in the Punnett Square above, when a heterozygous parent is crossed with a homo-zygous recessive parent for a single gene, alleles segregate in the gametes of both parents so an expected 1:1 phenotypic ratio will be observed.

If you grew up with a family pet, then you have surely noticed that they often seem to hear things that you don’t hear. Now that you’ve read this section, you probably have some insight as to why this may be. How would you explain this to a friend who never had the opportunity to take a class like this?

Answers

Answer:

Force her/him

Explanation:

so that she /he can hear u

Which of the following sentences uses commas correctly? Carol was the last person out of the house wasn't, she? Carol was the last person, out of the house wasn't she? Carol was the last person out of the house, wasn't she? Carol, was the last person out of the house wasn't she?

Answers

Answer:

The third sentence......................

Explanation:

The correct sentence is Carol was the last person out of the house, wasn't she?

Why is a comma important?

Commas help your reader figure out which words go together in a sentence and which parts of your sentences are most important. Using commas incorrectly may confuse the reader, signal ignorance of writing rules, or indicate carelessness.

What are the Rules of commas?

Comma Rules

Use a comma after an introductory phrase or clause. Use commas before and after a parenthetical phrase or clause. Use a comma to separate two independent clauses linked by a coordinating conjunction (and, but, for, nor or, so, yet) Use a comma to separate items in a series.

Learn more about the use of commas here https://brainly.com/question/2251561

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Discuss the internal and external structure of the testise​

Answers

Answer:

External- The testes are covered by a tough membranous shell called the tunica albuginea. Within the testes are very fine coiled tubes called seminiferous tubules. The tubules are lined with a layer of cells (germ cells) that develop from puberty through old age into sperm cells (also known as spermatozoa or male gametes).

Internal -Each testicle is covered by tough, fibrous layers of tissue called the tunica. The outer layer is called the tunica vaginalis and the inner layer is called the tunica albuginea. ... There are about 800 seminiferous tubules tightly coiled within each testicle.

Activity 3: Direction: Study the picture. Write the phases of the moon 1 new moon O first quarter O MOON PHASES last quarter waning crescent woving crescent Waning gibbous working globos​

Answers

Answer:

1.full moon

2.waxing gibbous

3.first quarter

4.waning gibbous

5.new moon

6.wabing cresent

7.last quarter

8.waxing cresent

A mutation is identified in a tumor sequencing study. Which of the following pieces of evidence would most strongly suggest that the mutation is a passenger mutation?
a. The same gene is mutated in many other individuals with the same kind of cancer.
b. The mutation impacts the function of a known tumor suppressor gene.
c. The mutation is a silent point mutation in a protein-coding sequence.
d. The gene carrying the mutation is known to participate in the cell cycle.

Answers

Answer:

The mutation is a silent point mutation in a protein-coding sequence.

Explanation:

A mutation is a change or alteration in DNI sequences that introduce new variants. Many of these are eliminated, but some of them might succeed and be incorporated into each individual. Mutations can be damaging or beneficial.

There are two types of mutations in cancerous cells:

· Driver mutations, which refer to genetic changes that provide malign cells an adaptative advantage. These mutations drive the cells to tumoral evolution.

· Passenger mutations, also known as neutral mutations, refer to those that do not provide any advantage nor disadvantage to the cancerous cell. These mutations can be between DNI segments where the driver mutations are. Some of these passenger mutations might become driver mutations with time.    

choose the letter of the correct answer 1. Which one of the following is NOT an organic compound? a. Methane b. Carbon dioxide d. Lactic acid C. Oil​

Answers

Answer:

B

Explanation:

how many people in the world​

Answers

Answer:

khjdaVSJHv

Explanation:ASjkbxzjb

SCamzhb

help me what is this stuff please i really need halp

Answers

Answer:

i dont no the answer

Explanation:

hahahahahahahahahahahahahahahahahahahahahahahhahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahhahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahahah

Look at the scientific names for the two organisms below:

Felis domesticus
Felis bengalensis

What can you tell about these two organisms from their scientific names?
A.
You cannot tell anything about an organism from its scientific name alone.
B.
The organisms are different subgroups of the same species.
C.
The organisms are different species but belong to the same genus.
D.
The organisms belong to the same kingdom but different phyla.

Answers

Answer:

B. The organisms are different subgroups of the same species.

QUESTION:-

Felis domesticus (Domestic CAT)

Felis bengalensis (Leopard Cat)

What can you tell about these two organisms from their scientific names?

A.

You cannot tell anything about an organism from its scientific name alone.

B.

The organisms are different subgroups of the same species.

C.

The organisms are different species but belong to the same genus.

D.

The organisms belong to the same kingdom but different phyla.

ANSWER:-

FIRST PART IS THE GENERIC PART ( genus name )

SECOND PART IS THE SPECIFIC NAME ( specific epithet )

ATQ:-

AS THE GENERIC OR GENUS NAME SAME SO THEY BELONG TO SAME GENUS

BUT DUE TO DIFFERENT SPECIFIC NAME OR SPECIFIC EPITHET WHICH SHOWS THAT THEY BELONG TO DIFFERENT SPECIES .

SO URE ANSWER IS PART C->

C. The organisms are different species but belong to the same genus.


Which explains why this is the case

Answers

Answer:

i dont know cause the question is missing

Explanation:

the results Mendel obtained during his experiments. It showed that if you cross two plants that were true-breeding for different colors (purple and white), the offspring or first generation (F1) would be ______________ instead of true-breeds, and all were _____________ in color. Interestingly, when he crossed two of these F1 plants, their offspring did not all come out _____________. Instead he obtain a ratio of ______ purple-flowered plant for every ______ white-flowered plant. He concluded that the “heritable factor” for the ____________ trait (white flowers) was not destroyed in the F1 generation. Instead it had been _______________ by the “heritable factor” of the ________________ trait (purple flowers).

Answers

Answer:

1. Heterozygous

2. Purple

3. Purple

4. 3

5. 1

6. Recessive

7. Masked

8. Dominant

Please find the missing answers to the questions in BOLD.

Explanation:

As illustrated in this question, Gregor Mendel used the color trait of pea plant to discover his law of dominance.

The results Mendel obtained during his experiments. It showed that if you cross two plants that were true breeding for different colors (purple and white), the offspring or first generation (F1) would be HETEROZYGOUS (Pp) instead of true-breeds, and all were PURPLE in color.

Interestingly, when he crossed two of these F1 plants (Pp × Pp), their offspring did not all come out PURPLE, instead he obtain a ratio of 3 purple-flowered plant for every 1 white-flowered plant. He concluded that the “heritable factor” for the RECESSIVE trait (white flowers) was not destroyed in the F1 generation. Instead it had been MASKED by the “heritable factor” of the DOMINANT trait (purple flowers).

what are the difference between DNA and RNA​

Answers

Answer:

There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.

This one too, please?

(3rd time)


I need explanation for your answers, even though it's multiple choices, I still need your explanation for it.

DUE TOMORROW!

If your answer is NONSENSE it will be deleted as soon as possible!

But if your answer is CORRECT, HELPFUL, HAS AN EXPLANATION, I'll chose your answer as the BRAINLIEST ANSWER!​

Answers

Answer:

1, group 1

2 group 7

3 group 2

4 D

5 B

6 A

Answer:

7. A 1

8. C 17

9. B 2

10. (d) C and D

11. (b) reactivity

12. (a) corrosion

13. (c) activity series

Explanation:

7. , 8, and 9,

Group 1 elements are named as alkali metals

Group 2 elements are known as alkaline earth metals

group 17 metals are known as halogens

10.

Na and Xe have one valency whereas the other two elements have variable valency which is a property of transition metals so the answer is (d) C and D

11.

It;s the definition of reactivity

12.

Definition of corrosion

13.

definition of activity series

Explain how the ear helps humans in balancing.​

Answers

Answer:

The vestibular system which is essential to our sense of balance is located within the inner ear

Explanation:

The vestibular system is the sensory apparatus of the inner ear that provides the brain with the information required for maintaining body balance (postural equilibrium), detecting the position and motion of the head and determining the position of the whole body in relation to gravity. The vestibular system in each inner ear is composed of five organs: 3 semicircular ducts located in the innermost part of each ear (i.e., the inner ear), which are sensitive to angular accelerations (head rotations), and 2 otoliths organs referred to as the utricle and saccule, which are sensitive to linear accelerations. Each semi-circular duct exhibit a different orientation (superior, horizontal, and posterior) in order to sense different movements (e.g. nodding, rotating).

which fundamental units are involved in force do step Wise ​

Answers

Force = ma

We know, the unit that the S.I. unit of mass is Kg.

We also know that a = (v - u)/t.

We know that v = d/t and u = d/t and the S.I. unit of t(time) is s.

We know that the S.I. unit of d(displacement) is m.

So, the S.I. unit of v is m/s and the S.I. unit of u is m/s and the S.I. unit of t is s.

So, the S.I. unit of a is m/s×s or m/s²

So, the unit of force is

(unit of m) × (unit of a)

= kg × (m/s²)

= kg.m/s²

=

[tex]kg \: m \: {s}^{ - 2} [/tex]

Or more simply,

F = ma

=> F = m{(v-u)/t}

Putting units,

Newton = kg[{(m/s) - (m/s)}/s]

=> Newton = kg{(m/s)/s}

=> Newton = kg(m/s²)

=> Newton = kg.m/s²

=> Newton = kg.m.(s^-2)

g Jack fell down and broke his crown. He broke the most anterior bone connected to the coronal suture. What LETTER is this, and what is the NAME of this bone

Answers

Coronal suture. This extends from ear to ear. Each frontal bone plate meets with a parietal bone plate at the coronal suture.

When a neuron is stimulated and sodium channels open, the process of has begun. Structures of the nervous system surrounding, but not part of the central nervous system are part of the . Two consecutive neurons communicate at a , where they physically come together. are a group of natural chemicals that reduce the perception of pain. Supporting cells of the nervous system are collectively called . When potassium channels have been open long enough to go below resting membrane potential, has occurred.

Answers

Answer:

- When a neuron is stimulated and sodium channels open, the process of depolarization has begun.  

- Structures of the nervous system surrounding, but not part of the central nervous system are part of the peripheral nervous system

- Two consecutive neurons communicate at a synapse, where they physically come together.  

- Endorphins are a group of natural chemicals that reduce the perception of pain.  

- Supporting cells of the nervous system are collectively called neuroglia

- When potassium channels have been open long enough to go below resting membrane potential, hyperpolarization has occurred.

Explanation:

Neurons undergo depolarization in response to diverse stimuli (e.g., heat, light, electrical, chemical, etc). The depolarization occurs when sodium (Na+) ions pass through specific channels  (i.e., open voltage-gated Na+ channels) into a neuron, which causes an increase in the positivity of membrane potential. On the other hand, hyperpolarization occurs when potassium (K+) channels remain open and Na+ channels reset, thereby producing an increase in negativity of membrane potential. The peripheral nervous system (PNS) is composed of the cranial nerves, spinal nerves, peripheral nerves, and neuromuscular junctions, which connect the Central nervous system (CNS) to the organs, limbs, and skin. Endorphins (e.g., serotonin) are polypeptides secreted by the pituitary gland and CNS to relieve stress and pain. Neuroglia refers to a class of neural cells that have ectodermal (e.g., astroglia, peripheral glial cells) or mesodermal (e.g., microglia) origins. Neuroglia cells are involved in diverse roles, including, among others, the formation of the blood-brain barrier, homeostatic support, provision of nutrients for neurons, structural support to nerve cells, etc.

what is the function of the liver?

Answers

Answer:

The Liver Stores Glycogen and Vitamins.

Its helps in Excreting Bilirubin which is produced from the breakdown of Red Blood Cell(RBC).

It also helps In the Production of Bile(This is stored in the gall bladder).

The _______ is the part of the neuron that carries information away from the cell body.

Answers

mitochondria is the part of the neuron that carried information away from the cell body

How many cranial nerves is it?

Answers

Explanation:

there are 12 cranial nerves

Find the number of chromosomes are in each daughter cell when a sperm cell with a diploid number of 26 chromosomes undergoes meiosis process​

Answers

Answer:

At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 30 chromosomes.

define cell and atom​

Answers

Answer:

hope it is helpful to you

A newly discovered pigmented microbe contains a capsule and flagella, but no chloroplasts or cilia. This microbe is approximately 2 microns in size, and divides by binary fission. The nucleic acid of this microbe is packaged within an envelope. Based on this information, is this microbe a eukaryote or a prokaryote? Explain the reasoning behind your answer.

Answers

Answer:

in which grade did u read

A 45-year-old woman named Christine is measured as having the following skinfold thicknesses on the right side of her body: Triceps: 14mm; Thigh: 32mm; Suprailium: 28mm. Estimate her body fat percentage.

Answers

Answer:

The skinfold method, the measurement of subcutaneous fat folds, is the most widely adopted field method for the assessment of body fat, especially in children.

It is based on the principle that fat is of a known density and by “summing” measurements of subcutaneous fat thickness across the body, total and regional fat can be estimated.

Skinfold thickness measurements are typically used to rank individuals in terms of relative total “fatness”, or to assess subcutaneous fat at various regions of the body.

Population specific equations are used to derive estimates of percent body fat.

In infancy, it might be the sole tool available for assessing body composition longitudinally as other methods may not be feasible, or may only be suitable for use at body sizes e.g. PEA POD, can only measure infants up to 10kg.

The most generally used field method for determining body fat, particularly in kids, is the skinfold method, which involves measuring subcutaneous fat folds.

What is skinfold method?

Skinfold method is defined as a method for determining how much body fat there is. It entails delicately pinching the skin and underlying fat in several locations using a tool called a caliper. To acquire precise findings using this quick and easy body fat estimation technique, a high level of competence is needed.

It is based on the idea that since subcutaneous fat thickness measurements may be "summed" to estimate total and regional fat because subcutaneous fat has a known density. Measures of skinfold thickness are widely used to categorize individuals based on their relative degrees of overall "fatness" or to assess subcutaneous fat in various bodily regions. Estimates of the percent body fat are derived using equations that are specific to a population.

Thus, the most generally used field method for determining body fat, particularly in kids, is the skinfold method, which involves measuring subcutaneous fat folds.

To learn more about skinfold method, refer to the link below:
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The coding RNA in a cell at particular time is comprised of
A. total mature mRNA
B.whole RNA
C. hnRNA
D.4% of total coding RNA

Answers

B whole RNA that is the correct answer

The Hardy-Weinberg principle is written as the equation p2 + 2pq + q2 = 1. What does prepresent?

Answers

Explanation:

Hardy-Weinberg principle can be illustrated mathematically with the equation: p2+2pq+q2 = 1, where 'p' and 'q' represent the frequencies of alleles. ... The principle behind it is that, in a population where certain conditions are met (see below), the frequency of the alleles in the gene pool will be constant.  

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porque los prejuicios hace que discriminamos a las personas Write a program that randomly chooses among three different colors for displaying text on the screen. Use a loop to display 20 lines of text, each with a randomly chosen color. The probabilities for each color are to be as follows: white 30%, blue 10%, green 60%. Suggestion: Generate a random integer between 0 and 9. If the resulting integer falls in the range 0 to 2 (inclusive), choose white. If the integer equals to 3, choose blue. If the integer falls in the range 4 to 9 (inclusive), choose green. Test your program by running it ten times, each time observing whether the distribution of line colors appears to match the required probabilities. In the Spring of 2021 the statistics course did a survey of the average number of parking tickets students received by gender. Which has been shared below. Based on the data below which statement would be the best null hypothesis? Gender # of hours male 6female 8female 8male 3female 7female 5male 3male 2female 9female 7female 2female 3male 9female 0female 2male 4male 9female 12female 15female 3female 6male 7female 3female 8male 3male 6female 7female 8 Poets' careful word choices introduced a new element of writing in which type of poetry?O TertiaryO PrimaryO FolkO Secondary One angle of a triangle measures 108. The other two angles are congruent.Enter and solve an equation to find the measure x of the congruent angles. Need help on this activity!!In this activity, you will rearrange and solve a rational equation and find and use the inverse of a rational equation.As weve seen, for a circuit with two resistors arranged in parallel, we can calculate the total resistance in the circuit, , in ohms, with this equation.Question 1Part AQuestionRewrite the equation to represent the resistance of resistor 2, , in terms of and . i need help on this pls You need a venue for your company's annual Salesconvention. 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Actual sales for December and budgeted sales for the next four months are as follows: December (actual) $280,000January $400,000February $600,000March $300,000April $200,000c. Sales are 20% for cash and 80% on credit. All payments on credit sales are collected in the month following sale. The accounts receivable at December 31 are a result of December credit sales.d. The companys gross margin is 40% of sales. (In other words, cost of goods sold is 60% of sales.)e. Monthly expenses are budgeted as follows: salaries and wages, $27,000 per month: advertising, $70,000 per month; shipping, 5% of sales; other expenses, 3% of sales. Depreciation, including depreciation on new assets acquired during the quarter, will be $42,000 for the quarter.f. Each months ending inventory should equal 25% of the following months cost of goods sold.g. One-half of a months inventory purchases is paid for in the month of purchase; the other half is paid in the following month.h. During February, the company will purchase a new copy machine for $1,700 cash. During March, other equipment will be purchased for cash at a cost of $84,500.i. During January, the company will declare and pay $45,000 in cash dividends.j. Management wants to maintain a minimum cash balance of $30,000. The company has an agreement with a local bank that allows the company to borrow in increments of $1,000 at the beginning of each month. The interest rate on these loans is 1% per month and for simplicity we will assume that interest is not compounded. The company would, as far as it is able, repay the loan plus accumulated interest at the end of the quarter.Required:Using the data above, complete the following statements and schedules for the first quarter:1. Schedule of expected cash collections:JanuaryFebruaryMarchQuarterCash sales $ 80,000Credit sales 224,000Total cash collections $304,0002. a. Merchandise purchases budget:JanuaryFebruaryMarchQuarterBudgeted cost of goods sold $240,000*$360,000Add desired ending inventory90,000fTotal needs 330,000Less beginning inventory60,000Required purchases $270,000 ___________*$400,000 sales X 60% cost ratio =$240,000.$360,000 X 25% = $90,000.b. Schedule of expected cash disbursements for merchandise purchases:JanuaryFebruaryMarchQuarterDecember purchases $ 93,000$ 93,000January purchases 135,000135,000270,000February purchases March purchases Total cash disbursements for purchases $228,0003. Schedule of expected cash disbursements for selling and administrative expenses:JanuaryFebruaryMarch QuarterSalaries and wages $ 27,000 Advertising 70,000 Shipping 20,000 Other expenses 12,000Total cash disbursements forselling and administrative expenses$129,0004. Cash budget:JanuaryFebruaryMarch QuarterCash balance, beginning $ 48,000Add cash collections 304,000Total cash available 352,000Less cash disbursements:Purchases of i nventory 228,000Selling and administrativeexpenses129,000 Purchases of equipment _____ Cash dividends 45,000Total cash disbursements 402,000Excess (deficiency) of cash Financing: Etc.(50,000)5. Prepare an absorption costing income statement for the quarter ending March 31 as shown in Schedule 9 in the chapter.6. Prepare a balance sheet as of March 31. If BC = 5, DE = 9, and AB = 4, what is the length of AD?787.27.5 Cystathioninuria can be caused by two different mutations in the enzyme cystathionase. Cystathioninuria caused by mutation 1 can be overcome by providing cells with increasing concentrations of the coenzyme pyridoxal phosphate. Which of the following statements describe the most likely changes in the binding affinities of the two mutant enzymes? A. Both mutant enzymes have lost the ability to bind the substrates. B. The enzyme with mutation 1 has lost the ability to bind to the substrates, whereas the enzyme with mutation 2 has lost the ability to bind to pyridoxal phosphate. C. The enzyme with mutation 1 has decreased affinity for pyridoxal phosphate, whereas the enzyme with mutation 2 has lost the ability to bind to the substrates. D. Both mutant enzymes have lost the ability to bind pyridoxal phosphate. In which situation is it not appropriate to use a colon Please help 20 points. I will give Brainly to who ever get it right. which of the following would not regulate genes in a eukaryote For each question circle the best choice.Which of the following is an algebraic expression?x + 5 = 75 - 2x = 35x + 4- 2x-2 = 3x +1