Using the marine food web below, on what trophic level(s) is/are the killer whales?

Answer: Pioneer organisms modify the environment.

The statement that best describes the involvement of pioneer organisms in ecological succession is as follows:

Thus, the correct option for this question is D.

Ecological succession may be defined as the gradual and continuous replacement of one community by another community over a long period of time.

Pioneer organisms are those organisms that arrive first in any ecosystem which is bare. The pioneer species are always found to be present in the bare area. The organisms that are the last organisms to appear known as climax organisms.

Pioneer organisms modify the environment in such a way that makes the bare atmosphere a little bit improved with respect to the need of other organisms.

Therefore, the correct option for this question is D.

To learn more about Ecological succession, refer to the link:

https://brainly.com/question/17622379

#SPJ2

Answer:

the burning of fossil fuels releases greenhouse gases into the atmosphere, increasing levels of CO2 and other gasses, trapping heat, and contributing to global climate change. Coal combustion releases the greenhouse gases carbon dioxide (CO2) and nitrous oxide (N2O) during combustion.Explanation:

Answer: Burning fuel releases CO2 into the atmosphere these gasses are called greenhouse gasses. When enough of these gasses accumulate in the sky the earth's natural temperature increases.  

Answer:

feeding

Explanation:

when an organism eats another, it gets energy from it. That energy is passed along the food chain

The process by which energy is transferred from organisms at one stage in a food chain to organisms at the next is by feeding, which is present in the second option, as through the eating process and the predator-prey relationship, energies pass.

The food chain in nature is made up of many trophic levels, where one trophic level animal preys on other animals or plants and obtains food from them, so when the animal is eaten by other animals, the energy content passes from one to another, and the energy content from plants continues to decrease to the topmost trophic levels.

Hence, the process by which energy is transferred from organisms at one stage in a food chain to organisms at the next is by feeding, which is present in the second option, as through the eating process and the predator-prey relationship, energies pass.

Learn more about the food chain and energy here.

https://brainly.com/question/8350286

#SPJ2

Answer:

A. The digestive system fuels the cells and the excretory system rids the body of the cells’ waste.

Explanation:

got it right on edg quiz (see pic)

hope this helps :)

All nutrients that enter the circulation are processed by the digestive and excretory systems simultaneously, with the exception of oxygen, which is taken in by the respiratory system. The correct answer is a) The digestive system fuels the cells and the excretory system rids the body of the cells’ waste.

Nutritive substances are absorbed by the digestive system, and any that are not are expelled. By continuously purging the blood, the excretory system works in tandem to remove metabolic waste products from cells throughout the body.

The digestive system takes in the nutrients and water from the diet. All across the body, the circulatory system delivers nutrition, water, and oxygen to cells. The respiratory system, the excretory system, and the skin all remove waste from the cells.

The excretory system filters the bloodstream for nutrients and gathers unneeded components in your urine for disposal, whereas the digestive system absorbs nutrients, collects them, and then eliminates the undigested solids (feces).

Therefore, the correct answer is a).

For more details regarding the digestive system, visit:

https://brainly.com/question/12307693

#SPJ5

Answer: 50% Ao, 50% Bo

Answer:

the answer is A, B, C.

Explanation:

I got it right on my test.

Answer:

c.

Explanation:

Plants use CO2 and H2O to make glucose through photosynthesis

Answer:

The correct answer is - can be explained by the law of dominance.

Explanation:

In this experiment of Gregory John Mendel where he made a cross between a purebred tall plant and a purebred dwarf plant and in the first generation all the offspring were tall.

It can be explained by that every offspring get one allele from both parents and in purebred both alleles are either dominant or recessive and both parent plant gives one allele which makes a heterozygous condition in which the dominant allele masks the recessive allele and offspring express phenotype of the dominant parent.

Answer:

Darwin

Explanation:

He was a scientist who was all about evolution (change over time)

Answer:

A. True

Explanation:

Hope it helps you in your learning process

Answer:

b plants take carbon dioxide from the air

Answer: Genetically modified bacteria are used to produce large amounts of proteins for industrial use. Generally the bacteria are grown to a large volume before the gene encoding the protein is activated. The bacteria are then harvested and the desired protein purified from them.

Explanation:

Answer: Air pollution occurs when harmful or excessive quantities of substances including gases, particulates, and biological molecules are introduced into Earth's atmosphere.

Explanation: Hope this helps!!!

Answer:

C

Explanation:

because a population is a group of the same species that lives in a given area

Answer:

It fills up with waste liquids (known as urine) and swells up to store more of the waste fluid.

Explanation:

Answer:

So that it is kept flexible respective of the amount of urine it holds without getting damaged

Answer:

9:7

Explanation:

We get the dominant phenotype in plants that have at least one dominant allele of EACH of the two genes; otherwise we get the recessive phenotype. So, the observed ratio in the F2 generation is 9:7.

So, this is your answer.

Answer:

RNA or DNA

Explanation:

Answer: RNA or DNA

Explanation:

Answer:

B.The clownfish living in a sea anemone

Explanation:

It's a relationship between two organisms where one benefits and the other gains neither harm nor benefit

Answer:

D. Moss growing higher on a tree to gain nutrients and sunlight.

Explanation:

I just had this question.

Answer: in an organization chart, a solid line is used to indicate the relationship between a manager and their reports. A "dotted line report" is an employee that has some level of accountability to another, but is not a direct report.

Explanation:

Answer:

Use any of the followin

Explanation:

Thin narrow beak, Two legs, thin tail, wings

Answer:

The answer is Protozoa

Explanation:

Answer:

1.) Why does menstruation begin?

A.) Period happens because of changes in hormones in the body. 

2.) How long does the menstrual cycle usually last?

A.) the menstrual cycle lasts 21 to 35 days while bleeding between 2 to 7 days

3.) How do you know when the first day of the menstrual cycle is? What happens?

A.) first day of menstrual bleeding is considered Day 1 of the cycle.

4.) What is the function of FSH?

A.) FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries.

5.) What are the small sacs in an ovary that contain a developing egg cell?

A.) Follicle

6.) When does a woman run out of eggs?

A.) your ovaries cease to make estrogen, and you will go through the menopause. At the age of 45 to 50

7.) In a woman's life called?

A.) Middle adulthood is considered that period of time between ages 40 and 59

8.) What is the name of the lining of the uterus?

A.) Endometrium

9.) What does estrogen do to the lining of the uterus?

A.) Estrogen causes further proliferation of the stromal cells of the epithelial lining of the uterus.

10.) What hormone is released due to the rising level of estrogen in the bloodstream?

A.) When the level of estrogen is sufficiently high, it produces a sudden release of LH, usually around day thirteen of the cycle.

11.) What is the process by which the egg is released called?

A.) Ovulation

12.) When does ovulation occur?

A.) Ovulation typically occurs about 14 days before the start of the next menstrual period.

13.) What is the maximum life of a sperm?

A.) 5 days.

14.) What hormone prevents the release of another egg?

A.) Luteinizing hormone (LH),

15.) What happens to hormone levels if a woman becomes pregnant?

A.) Estrogen and progesterone are the chief pregnancy hormones.

16.) Why does menstruation begin?

A.) Period happens because of changes in hormones in the body. 

17.) How long does the menstrual cycle usually last?

A.) the menstrual cycle lasts 21 to 35 days while bleeding between 2 to 7 days

18.) How do you know when the first day of the menstrual cycle is? What happens?

A.) first day of menstrual bleeding is considered Day 1 of the cycle.

19.) What is the function of FSH?

A.) FSH helps control the menstrual cycle and stimulates the growth of eggs in the ovaries.

20.) What are the small sacs in an ovary that contain a developing egg cell?

A.) Follicle

21.) When does a woman run out of eggs?

A.) your ovaries cease to make estrogen, and you will go through the menopause. At the age of 45 to 50

22.) What is the name of the lining of the uterus?

A.) Endometrium

23.) What does estrogen do to the lining of the uterus?

A.) estrogen causes further proliferation of the stromal cells of the epithelial lining of the uterus.

24.) What hormone is released due to the rising level of estrogen in the bloodstream?

A.) When the level of estrogen is sufficiently high, it produces a sudden release of LH, usually around day thirteen of the cycle.

25.) What is the process by which the egg is released called?

A.) Ovulation

26.) When does ovulation occur?

A.) Ovulation typically occurs about 14 days before the start of the next menstrual period.

27.) What is the maximum life of a sperm?

A.) 5 days.

28.) What hormone prevents the release of another egg?

A.) Luteinizing hormone (LH),

29.) What happens to hormone levels if a woman becomes pregnant?

A.) Estrogen and progesterone are the chief pregnancy hormones.

-TheUnknownScientist

Explanation:

I understand but it's so low point.....

.

Answer:

The correct answer is - per gram, the marathon runner's muscles would contain more myoglobin than the sprinter's muscles.

Explanation:

Marathon runners have smaller leg muscles and thinner quads and calves as marathon runners require slow-twitch muscles while in sprinters the fast-twitch muscle requires. Slow-twitch muscles of marathon runners have more amount of myoglobin, per gram than fast-twitch muscles.

Myoglobin acts as local oxygen storage that provides oxygen to the muscles in case of less oxygen supply than required temporarily and a marathon race is an intense exercise or activity that requires more oxygen.

Answer:

2.447 × 10⁴ years

Explanation:

Step 1: Given data

Step 2: Calculate the rate constant

Radioactive decay follows first-order kinetics. We can calculate the rate constant (k) using the following equation.

k = ln2 / (t1/2) = ln2 / 3,500 y = 1.980 × 10⁻⁴ y⁻¹

Step 3: Calculate the time elapsed (t)

For first-order kinetics, we will use the following expression.

ln ([A]/[A]₀) = -k × t

t = ln ([A]/[A]₀)/ (-k)

t = ln (1/127) / (1.980 × 10⁻⁴ y⁻¹) = 2.447 × 10⁴ y

Answer: Involuntary.

The Autonomic nervous system is a subdivision of the Peripheral nervous system and it is in charge of the involuntary processes in the body such as blood pressure, respiration and the heart rate. As such, its effectors are under involuntary control.

The Autonomic nervous system controls the smooth and cardiac muscles in the body as well as the glands. This is where it earns its other name, the Visceral nervous system.

Explanation:

Answer:

fire is your answer i hope this helps