Examine the food web below. Suppose the local government sprayed a pesticide to kill mosquitoes. The sparrows ate the poisoned mosquitoes and died as well. What would most likely happen to the organisms in this food chain after the sparrows began to disappear?
A.
There would be an overpopulation of caterpillars, which would threaten the oak trees.
B.
The sparrows’ disappearance would not affect the other organisms in the ecosystem.
C.
Most of the organisms in the ecosystem would starve and die.
D.
The eagle would loose its primary food source and be forced to start feeding on mountain lions.

Answers

Answer 1

Answer:

A. There would be an overpopulation of caterpillars, which would threaten the oak trees

Explanation:

Because sparrows eat caterpillars as a primary food source, when the population of sparrows decrease, the population of caterpillars will increase. Because of this, more caterpillars will be feeding off of the oak trees, therefore threatening the oak trees. I hope this helps!

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Which organelle is marked with x

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I'm assuming there is supposed to be a picture to see, can you possibly show that? I can't help you unless I see the options and picture :)

Drag each tile to the correct location.
Match each process to where it occurs in the carbon cycle.

Answers

Answer: In order:

1. Ingestion

2. Decomposition

3. Fossilization

4. Combustion

Explanation:

- Lysogenic life cycle of viruses causes the burst of the host cell (T/F)

- Spot method of detection of bacteriophages is a qualitative method
(T/F)

Answers

1. True. Both lysogenic and lytic cycle cause the host cell to burst and release new viruses. The difference is the lysogenic cycle has the viral dna insert into the host dna then a period of dormancy before creating viral proteins. 2.true. The spot test method can be used to give you a yes or no (positive or negative) to the presence of bacteriophages but it does not tell you a quantity so it is qualitative information.

What part of a plant is most of photosynthesis happening?

Answers

Answer:

the chloroplasts of the plant cell

Explanation:

An area that has been sampled to have a large population of organisms. Does this represent high biodiversity? Why or why not?

Answers

An area that has been sampled to have a large population of organisms is

regarded as having a high biodiversity.

Biodiversity is defined as the condition in which areas have a high amount

of plant and animal species present there. Any place with a large population

of organisms is said to have a high biodiversity while places with low

population of organisms have low biodiversity.

The stated facts therefore makes an area that has been sampled to have a

large population of organisms represents high biodiversity.

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A food chain shows how
matter moves through an
ecosystem. Which of these
substances forms the base of
the matter in food chains and
food webs?
A. light
B. carbohydrates
C. iron and lead

Answers

Answer: B

Explanation:

Answer:

carbohydrates

Explanation:

Why is it necessary for there to be variation in population in order for evolution by natural selection to occur?

Answers

Answer:

There needs to be variations in population in order for natural selection to occur because the entire point of evolution by natural selection is only the best variations will survive. So if there were no variations then there would be no natural selection because the animal's survival rate would be the same no matter how many times they reproduce because there are no different variations being introduced into the species. However, if there are variations then the animal's survival rate could be impacted because of the variations, for example, white mice would be easier to find for predators on a dark surface, while a darker mice would be harder to find for predators on a dark surface, thus, allowing the darker mice to prevail as they have a higher survival rate and the species will slowly evolve into the darker mice. But, if there were no evolution, in this case, then no matter what happens, the white mice would not be able to evolve into a darker mice because there are no such thing as variation. That is why it is necessary for there to be variation in order for evolution by natural selection to occur.

is menstural cycle also called periods?

Answers

Answer:

yes.

Explanation:

However we dont call them 'periods' just simply 'period'

us girls will typically say 'I'm on my period' rather than 'I'm on my periods'

If all mammals today evolved in 65 millions years from a common ancestor, and if one species took 100,000 years to evolve, how many ticks would tjis be?

Answers

Answer:

650

Explanation:

What is a plant produced from a cross between two plants with different genetic constituents called

Answers

Answer:

What is a plant produced from a cross between two plants with different genetic constituents called hybrid plant.

Hybrid is a plant produced from a cross between two plants with different genetic constituents.

WHAT IS A HYBRID?

A hybrid is an individual organism produced from a cross between two parent organisms with different genetic constituent.

For example, a mule is a hybrid formed from a cross between a horse and a donkey.

Therefore, a plant produced from a cross between two plants with different genetic constituents is called hybrid.

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Fraternal twins, while conceived at the same time, are not genetically identical.

Which statement best explains why these siblings are genetically different from each other?

A.One chromosome from each pair randomly passes to the sex cells during meiosis and leads to differences between the siblings.

B.One chromosome from each pair randomly passes to the sex cells during fertilization and leads to differences between the siblings.

C.Mutations occur during meiosis and lead to differences between the siblings.

D.Mutations occur during fertilization and lead to differences between the siblings.

Answers

Fraternal twins are not genetically identical because one chromosome from each pair randomly passes during meiosis and leads to differences between the siblings. Meiosis involves independent segregation of sex chromosomes.

Meiosis is a type of reductional cell division by which a parent cell produces four daughter (gametes) cells having half the genetic material.

Fraternal twins occur when two egg cells are released by the mother, which are fertilized by a different sperm.

During meiosis, sex chromosomes are separated and segregate in a random manner in daughter (sex) cells.

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Which type of cell-to-cell junction joins intermediate filaments ( keratins) in one cell to the basal laminate; welding down the cells of the epithelial and providing tensile strength?
A. Right junction
B. Desmosomes
C. Gap junction
D. Hemidesmosome
E. Adherents junction

Answers

Answer:

Desmosomes

Explanation:

Desmosomes Connect Intermediate Filaments from Cell to Cell

Through desmosomes, the intermediate filaments of adjacent cells are linked into a net that extends throughout the many cells of a ti

I don’t understand help

Answers

Answer:

Explanation:

not 100% sure but it seems to be the only sensible answer

What properties do all liquids share

Answers

They have definite volumes, but no shape, they can change shapes based on the shape of the container.

Whatcha are the three cells of the cells theory

Answers

Answer:

2 and 3 are the other ones

Explanation:

differences between stamen and pistil

Answers

Stamen is composed of anther and filament. The pistil is composed of stigma, style, and ovary. ... The key difference between stamen and pistil is that stamen is the male reproductive organ which produces pollens of angiosperms while pistil is the female reproductive organ which produces ovules of angiosperms.

I hop this helps!

HELP PLEASE ITS AN EXAM!!
Which organisms are most closely related?
O species A and B
O species A and C
O species B and C
O species C and D

Answers

Answer:

B and c are most closely related

Explanation:

Which of the following ecological levels does not describe interacting biotic and abiotic factors in an area?

A. Biome
B. Community
C. Ecosystem
D. Habitat

Answers

Answer:

habitat

Explanation:

The ecological levels do not describe interacting biotic and abiotic factors in an area's habitat. The correct option is D.

What is a habitat?

A habitat is a place where physical or biotic factors are presented. This is a place where all the factors are present to live a species with all suitable conditions.

Habitat of different species is different. They live in their suitable habitat to grow and reproduce accordingly. If a species is moved from its habitat, then it may have difficulties in surviving.

So habitat is not a place where all biotic and species abiotic factors are present, it is a place where all living factors are present that are necessary for the living of a person. So, it is not the ecological level of interacting biotic and abiotic factors in an area

Thus, the correct option is D. Habitat.

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Why are there not many vaccines for fungal & parasite disease as we have for viral and bacterial disease?

Answers

Answer:

it is very easy to kill the pathogen by vaccination but it is very difficult to detoxify the toxins produced in the host.

Explanation:

Hopefully this helped!

La importancia de la biología en el cambio climatico

Answers

Answer:

¿Qué tiene que ver la biología con el cambio climático?

El cambio climático puede alterar la compatibilidad entre los organismos y su entorno local, reduciendo la supervivencia y la reproducción y provocando impactos posteriores en las poblaciones o distribuciones de especies en las regiones geográficas. Los cambios en el clima pueden beneficiar a algunas especies y causar la extinción de otras.

Explanation:

Which of the following causes the change from day to night?

Answers

Answer:

Explanation:

The Earth orbits the sun once every 365 days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

Pls help....
I will brainliest you if you are good answer.

Answers

Answer:

1. 38.1 cm

2. 8 days

3. 20 blankets

4. 10 cups of detergent

5. 15 dry cloths

Explanation:

1. 15 x 2.54 = 38.1

2. 192/24 = 8

3. 12/3 = 4

4 x 5 = 20

4. 20/4 = 5

5 x 2 = 10

5. 10/2 = 5

5 x 3 = 15

Eukaryotic organelles can be classified into membranous and non-membranous organelles. Identify them (list them)

Answers

Answer:

fluid-filled organelles are membranous. Nonmembranous organelles are ribosomes, cytoskeleton, nucleolus, and centrosome

Explanation:

7. In an ecosystem, which is the most likely reason for an increase in the producer
population if there is an increase in the carnivore population?

Answers

If there is an increase in coronavirus that means that the animals that eat the producers will be less which causes more producers

HELP !!!!!!!!! IM SOOO CONFUSED

Different leads are used to measure the ECG because

Select one:

a.

measurement of heart rate depends on which lead is used to measure it

b.

the signal has a larger amplitude on some leads so it is easier to measure

c.

it is easier to attach some leads to the patient

d.

the interval between ECG events differs on the different leads

e.

they provide information on the spread of the heart beat and to help diagnose which areas of the heart are affected by pathology

Answers

Answer:

Explanation:

they provide information on the spread of the heart beat and to help diagnose

Why is it that dominant diseases are not as common as recessive ones?

Answers

Answer:

Mainly because if a disorder is dominant, then it will be manifested by all who have the gene. If the disorder is severe, then it will reduce the chances of the individual surviving to grow up and reproduce (unless the disorder only manifests symptoms in later life). If they do reproduce, then 50% of their offspring will inherit the gene, and be at a similar disadvantage in reproduction. Thus, there is likely to be selection against the gene. By contrast, a recessive disorder is only manifested if both parents pass on the abnormal gene, and an individual with one gene for the disorder is usually at no disadvantage. Thus, there is much less selection against abnormal recessive disorders.

My parents are tall but I’m short am I adopted???

Answers

Answer:

Nope. You get your height genes from both sides of your family - and you can end up taller or shorter than either or both of your parents. You never know if some of your ancestors might have contributed genes.

Hope this Helps!

-Lexie

In 2018, the average age for first marriage in the United States was 29.8 years for men and 27.8 years for women. These ages for first
marriages are

Answers

Those ages for first marriages are averages

These ages for first marriages are Average age .

What is the average age of first marriage in the United States?

The median age at first marriage for women was 28 years in 2015-2019, up from 26.3 in 2006-2010. The median age at first marriage for men was 29.9 years in 2015-2019, up from 28.1 in 2006-2010.

What is the median age at first marriage for women?

In 2019, the median age for the first wedding among women stood at 28.4 years.

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Read Aloud
Rate Content
A
Cleavage differs from mitosis because:
From

Answers

Cleavage lacks the growth phase of mitosis resulting in progressively smaller cells

4. What is the molecule used by cells to store energy?

Answers

Answer:

What is the molecule used by cells to store energy?

Explanation:

Adenosine 5'-triphosphate, or ATP, is the principal molecule for storing and transferring energy in cells. It is often referred to as the energy currency of the cell and can be compared to storing money in a bank.

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