How do you think life on Earth would be different without the evolution of angiosperms? Provide two examples, each with an explanation.

Answers

Answer 1

Answer:

Without angiosperms, average annual rainfall in the area declined by 300 millimeters. In the eastern Amazon basin, the length of the wet season decreased by nearly 3 months. The extent of the wettest rainforests, which receive more than 100 millimeters of rain per month, shrank by 80%.


Related Questions

Dave is planning to build an electric power station to supply electricity to his community. To help him decide which type of electric power station to build, he has put together the table below, which summarizes some of the advantages and disadvantages associated with different technologies.


Power Technology Advantage Disadvantage

hydroelectric no greenhouse gas emissions upsets natural ecosystems

coal inexpensive releases greenhouse gases and other pollutants

wind no greenhouse gas emissions can't always supply electricity when it's needed

solar no greenhouse gas emissions expensive to build, install, and replace

natural gas easily supplies electricity when it's needed releases greenhouse gases and other pollutants


If Dave wants to use a technology that does not directly impact climate, which of the above technologies should he consider?

A.

coal, wind, and natural gas

B.

solar, wind, and natural gas

C.

hydroelectric, coal, and solar

D.

hydroelectric, wind, and solar

answer is

D.
hydroelectric, wind, and solar

Answers

Answer: The correct answer to this question is D: hydroelectric, wind, and solar energies.

Explanation: These energy sources do not directly impact climate because they don't give out any harmful pollutants or gases.  

Answer: The answer is hydroelectric, wind, and solar

Explanation:

The reproductive system in both males and females are controlled and regulated by the interaction of hormones from the hypothalamus and pituitary glands with hormones from the reproductive organs. How do these hormones affect the development of male and female reproductive systems? (Provide an answer of minimum of 25 words) ​

Answers

How do these hormones affect the development of male and female reproductive systems?

These harmones help both male and female to develop sexual characteristics and play an important role in menstrual cycle, fertility and pregnancy in females. In males, these hormones help make sperm in testes...

what is mutuation in biology ​

Answers

Answer:

any change in the nucleitide sequence because of failure in the system.

Explanation:

im in bio class lol but uh this is a definition that can be searched

Answer:

A mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.

Explanation:

would would would would would would would would would would would would would

Answers

Would would would would would

Select the correct locations on the image.
A high gradient in air temperature and pressure can cause a jet stream, characterized by high-speed winds. Through which marked regions
would jet streams pass?
Polar cell
609
Ferrel cell
30
رررررد
Hadley cell
Hadley cell

Answers

Answer:

all boxes on the black lines

Explanation:

there's 4 boxes you should have selected i just took the same test

Why is the making of sedimentary rock a physical change? Explain your own answer no goo9le plss​

Answers

Answer:

The formation of sedimentary rocks is indeed a physical change because we are only changing the physical structure of the rock/rocks by compacting them together, they're still rocks.

Explanation:

Remember that physical changes are when you are only changing a physical characteristic of an object. A common example of a physical change would be breaking a piece of wood. Even though the wood is now smaller, and its physical appearance has changed, the wood is still wood.

Sedimentary rocks are formed by compaction, where many rocks are compacted together, and the pressure causes all the rocks to form together into one big rock.

Sedimentary rocks are formed by many different rocks, which means they are still rocks, but they are now compacted together to form one bigger rock. "The formation of sedimentary rocks is indeed a physical change because we are only changing the physical structure of the rock/rocks by compacting them together, they're still rocks."

Hope this helps.

Most enzymes in the human body work best at 37C (98.6F). When you get sick, sometimes you get a fever, what do you think this means for your enzymes?

Answers

Answer:

Because enzymes are denatured by heat, fevers can cause changes in enzymatic structure and shape. If your fever is high enough to fully denature your enzymes, this can lead to death by preventing your enzymes from catalyzing necessary reactions.

Hope this helps :D

What is the mRNA sequence for the template strand of DNA if it has the sequence 3’ TACAAACTAGAA 5’
a. 5’ ATGTTTGATCTT 3’
b. 5’ AUGUUUGAUCUU 3’
c. 5’ TACAAACTAGAA 3’
d. 5’ UACAAACUAGAA 3’

Answers

B

Remember,
Adenine goes with Thymine, but in RNA thymine “turns” into uracil

How does the cell cycle play into organ donation?

Answers

Answer:

Steps in the process are as follows:

1. Identification of the Potential Donor by the Hospital. ...

2. Evaluation of Donor Eligibility. ...

3. Authorization for Organ Recovery. ...

4. Medical Maintenance of the Patient. ...

5. Matching Organs to Potential Recipients. ...

6. Offering Organs Regionally, Then Nationally. ...

7. Placing Organs and Coordinating Recovery.

What is a null hypothesis?

A. a hypothesis stating that there is no
relationship between the independent and
dependent variable
B. a hypothesis stating that there is a positive
correlation between data sets
C. a hypothesis stating that there is a negative
relationship between the data and the expected
values
D. a hypothesis that is rewritten from the
original after an experiment is ran

( acellus academy )

Answers

Answer:

A

Explanation:

a hypothesis stating that there is no relationship between the independent and dependent variable.

(ANSWER)

In an
ecosystem, energy is transferred from one organism to another. Which of the
following best shows the transfer of energy among organisms in an ecosystem's
food web?
A. omnivore carnivore - herbivore → - producer
B. producer – herbivore - carnivore decomposer
-
C. producer – decompoder herbivore — Omnivore
D. carnivore ——herbivore decomposer —> omnivore
-

Answers

Answer:

producer – herbivore - carnivore decomposer.

Explanation:

hope it helps you<3

How do static charges interact, and how are they released?

Answers

The rubbing of certain materials against one another can transfer negative charges, or electrons. For example, if you rub your shoe on the carpet, your body collects extra electrons. The electrons cling to your body until they can be released.

An organism whose niche involves breaking down things that are dead and decaying as food is known as ________.

A. a producer
B. either a consumer or decomposer
C. a decomposer
D. a consumer

Answers

Answer:

C

Explanation:

(Filling space requirements)

An organism that contains genes from another organism of a different species is a ? Check all that apply
A. Complimentary Organism
B. GMO
C. Mutant
D. Transgenic Organism
E. Translated Organism

Answers

THE ANSWER IS A HOPE THIS HELPS

9. What would need to change in order for the organism population in the example to continue
growing?

Answers

Answer:

If a population is given unlimited amounts of resources, such as food and water, land if needed, moisture, oxygen, and other environmental factors, it will grow exponentially. Exponential growth occurs as a population grows larger, dramatically increasing the growth rate.

1.Stomata are:______
A)pores in plant cells
B)pores on the leaves of a plant
C)photosynthetic organ
D)none of the above
2.Blue black coloration on leaves during test for photosynthesis is_________
A)confirmation of release of oxygen
B)confirmation of carbohydrate formation
C)confirmation of the formation of Water molecules
D)None of the above​

Answers

Answer:

1) b - pores on the leaves of a plant
2) d - none of the above

Explanation:

1) Stomata are pores on the leaves of a plant that help in taking in carbon dioxide and give out oxygen.
2) Blue black coloration on leaves during test for photosynthesis is used to indicate the presence of starch in leaves.

is a nonvascular plant because it lacks xylem and phloem.

Answers

Horse tail is correct

Answer:

The answer is moss, just did the test:)

Explanation:

have a wonderful day.

Bye

is it possible for humans to be the size of molecules and become a liquid if there are enough humans? like if i had enough molecule sized humans would they make a soup or

Im sorry i was just wondering (I am not a cannibal)

Answers

Answer: If humans were the size of molecules, I suppose they could make a soup, but it would depend on how the people connect/combine on a molecular level.

Explanation: Also, what kind of question is this?

How much oil was removed?

Answers

Answer:

40ml

Explanation:

90-50=40

When you mix the primary colors of light, you produce the color:
a. yellow
b. green
c. white
d. black

Answers

Red and green light make yellow. And when all three primary colors of light are combined, we see white light.

Answer: White

Explanation: when all 3 of the primary colors are mixed you get a white light

Expain why the lettuce irrigated with a mixture of water and fertilizers grows on gravel​

Answers

A fertiliser, often referred to as plant food, is a broad term for either a mixture of chemicals or naturally occurring matter that is used for enhancing the growth of plants.

What are zymogens? Give an examples​

Answers

What are zymogens? Give an examples

Inactive precursor of enzymes are known as zymogens. They are also known as proenzyme.

For example:-

Pepsinogen is the precursor of pepsin. Pepsinogen is inactive until it is released by chief cells into HCl. The latter partially activates pepsinogen.

What is the half life for the mercury sample?
A
48 days
B
150 days
C
200 days
D
80 days

Answers

Answer:

A

Explanation:

Since the chart is around 48 when at 50%.

What is a reflex?

Behavior that does not involve What is a reflex?

Behavior that does not involve the forebrain, or "higher" centers of an animal's
brain.

Similar nerve cells grouped together in a nervous system.

Answers

as a noun one response to the entire physiological process activating such a movement free any automatic I’m thinking often habitual behavior or response or reflection or image of an object as exhibited by a mirror or the like

What is the height and length of a arctic tern?

Answers

Answer:

The Arctic tern is a medium-sized bird around 33–36 cm (13–14 in) from the tip of its beak to the tip of its tail. The wingspan is 76–85 cm (30–33 in). The weight is 86–127 g (3.0–4.5 oz.).

Explanation:

Which of the following are subatomic particles? Select all that apply.
A. Gas
B. Elements
C. Protons
D. Electrons
E. Mixtures
F. Neutrons

Answers

Answer:

Protons, Electrons, and Neutrons are what atoms are made of. Therefore, they're subatomic (smaller than atom) particles.

Energy from an earthquake travels
A.
fastest through the gases of Earth's atmosphere.
B.
as light waves that warm the rock underground.
C.
as seismic waves that cause matter to vibrate.
D.
at the same speed through solids, liquids, and gases.
Reset

Answers

Answer:

Energy from an earthquake travels: C. as seismic waves that cause matter to vibrate.

Explanation:

The energy of an earthquake travels in the form of waves. These waves are referred to as seismic or earthquake waves. Earthquake waves are classified into two types: body waves and surface waves. Body waves move through the Earth's interior, whereas surface waves travel along the Earth's surface.

which of the 4 macromolecules consist of a variety of units and can be divided into 2 classes?? Helpp!!

Answers

Answer:

The 4 macromolecules are nucleic acids, carbohydrates, proteins, and lipids.

structure: Carbohydrates, lipid, and protein

Function: Nucleic acids, Carbohydrates, Lipid, and Protein

Explanation:

1) You have an electropherogram with a clean, three-locus profile:
STR locus #1 is 10, 14
STR locus #2 is 30 (only)
STR locus #3 is 3, 6
What is the random match probability of this profile? Fill in the blank:
"Approximately one in every
people, drawn randomly from the human
population, would be expected to have this three-locus profile.

Answers

Following the product probability rule and assuming independence among loci, the random match probability of this three-locus profile is 0.000853. See below the procedure for question number 2.

What does the product probability rule state?

The product probability rule allows us to calcuate the probability of occurrence of two or more events at the same time. It is about a joint probability of two or more events that might happen simultaneously, not excluding each other.

This rule is based on the dependence or independence of the events. Two events, A and B, are independent of each other if one of them does not affect the occurrence of the other one.

The rule establishes that the occurrence probability of two independent events -A and B- together is the multiplication product of the probability of occurring A by the probability of occurring B.

P(A∩B) = P(A) x P(B)

In the exposed example,

STR locus #1 has three alleles → 10, 11, 14STR locus #2 has four alleles → 27, 28, 28.2, 30STR locus #3 has three alleles → 3, 6, 7

The frequency of each allele is detailed in the table.

According to the electropherogram, the profiles are

STR locus #1 → 10, 14 → Heter0zyg0usSTR locus #2 → 30 → H0m0zyg0usSTR locus #3 → 3, 6 → Heter0zyg0us

Knowing the allele frequencies, we can get the genotypic frequencies,

   Locus               Allele frequency            Genotypic frequency

STR locus #1

10                                 0.22                    2xpxq = 2 x 0.22 x 0.18 = 0.079

14                                 0.18            

----------------------------------------------------------------------------------------------------  

STR locus #2

30                                 0.22                    p² = 0.22² = 0.048

----------------------------------------------------------------------------------------------------  

STR locus #3

3                                   0.45                    2xpxq = 2 x 0.45 x 0.25 = 0.225

3                                   0.25            

----------------------------------------------------------------------------------------------------

So, the probability, P, of getting these genotypes are,

P ₍₁₀₋₁₄₎ = 0.079P₍₃₀₋₃₀₎ = 0.048P₍₃₋₆₎ = 0.225

The random match probability of this profile is the probability of getting the three genotypes together.

Following the product probability rule and assuming that loci are independent from each other, the profile probability, PP, is

PP = P₍₁₎ x P₍₂₎ x P₍₃₎ x .... P₍ₙ₎

PP = (P₍₁₀₋₁₄₎ ) (P₍₃₀₋₃₀₎) (P₍₃₋₆₎)

PP = 0.079 x 0.048 x 0.225

PP = 0.000853

The random match probability of this three-locus profile is 0.000853.

To fill in the blank, you need to consider the population size -N- and the probability of getting this three-locus profile.  

Since I do not have the total number of individuals in the population, I will say that my population size, N = 500 individuals and I will make the calcs according to this number. You should follow the same procedure but use your N.

We know that the probability of getting this three-locus profile is 0.000853. This is the frequency of individuals carrying this genotype in the population.

To get the number of individuals with this genotype in the population, we need to multiply this frequency by the total number of individuals, N.

Nº of individuals with the three-locus profile = frequency x N

Nº of individuals with the three-locus profile = 0.000853 x 500

Nº of individuals with the three-locus profile = 0.4265 individuals.

Now we know that in a population of 500 individuals, there are 0.4265 individuals with the three-locus profile. Now we need to know the population size in which we can find 1 individual with this genotype.

0.4265 individuals with the three-locus profile-------- 500 individuals

1 individual -------------------------- X = (1 x 500) / 0.4265 = 1,172.33 individuals.

According to these calculations, approximately one in every 1,172.33 individuals, drawn randomly from the population, would be expected to have this three-locus profile.

Note: Remember to use the population size provided to you in this problem. The procedure is the same, but the population size -N- will be different.

You will learn more about probability rule at

https://brainly.com/question/14399918

https://brainly.com/question/797141

https://brainly.com/question/333419

A student uses a pulley to lift a bucket. The pulley does not work well. Which solution will decrease the amount of friction on the pulley?

Answers

Answer:

a second pulley.

Explanation:

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