Hi. Is this correct?????

Answer:

isotopes

Explanation:

If two atoms have different numbers of protons, they are different elements. However, if two atoms have the same number of protons, but different numbers of neutrons we refer to them as isotopes. Two terms we use to identify nuclides (isotopes) are atomic number and mass number.

boi what class are you in

Answer:

the answer is A

Explanation:

hope it helps!!!

Answer:

Grass and tree

A producer is a living thing that makes its own food. All food chains begin with producers.

( I am in LOVE with your pfp <3 )

Answer:

it combines with carbon monoxide to carbon dioxide

Answer:

South China and the U.K.

Explanation:

Environmental exposure to certain chemicals, ultraviolet radiation, or other external factors.

Answer: Kingdom:Eubacteria

organism name: kelp

Explanation: its kelp in the kingdom classification bacteria

Answer:

Escherichia coli.

Explanation:

Escherichia coli (E. coli) is a gram negative, rod shaped and facultative anaerobic bacterium that lives in large intestines of mammals. It is unicellular or single celled and prokaryotic organism. It reproduces asexually by binary fission.

It does not have nuclues or membrane bound organelbecause it is prokaryotic.

Therefore,

Escherichia coli lives inside large intestines of mammals.

After pollination and fertilization following changes occur in a flower: (i) The petals, stamens, style and stigma of the flower fall off. (ii) Sepals dry up and hold the ovary. (iii) The ovules confined in the ovary develop into seeds.

Answer: The main difference between organ and organelle is that organ is a large part of an organism, composed of tissues which perform similar functions whereas organelle is a specialized structure found inside cells, which carries out a specific life process. Organelles form cells.

Answer:

D

Explanation:

I think it is D because if you increase your genetic variation then you will have more population of, well "yourself" - therefore making more chances to survive. although don't take what I say word-for-word because I'm just a noob at this stuff. if it pops up wrong, please notify me why it is wrong so that I can improve.

By increasing genetic variation will help a species adapt to a changing environment. Therefore, the correct option is D.

Genetic variation refers to the diversity of genetic information within a population or a species. It is the result of differences in the DNA sequences of individuals, which can arise through a variety of mechanisms such as mutations, genetic recombination, and gene flow.

It provides the raw material for natural selection to act upon. In a changing environment, individuals with certain traits may have a higher chance of survival and reproduction, and their traits may become more prevalent in the population over time.

Therefore, increasing genetic variation through mechanisms such as mutation, genetic recombination, and gene flow is critical for a species to adapt and survive in changing environments. Hence,  the correct option is D.

Learn more about genetic variation, here:

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Answer:

Females have two X chromosomes in their cells, while males have both X and a Y chromosomes in their cells. Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome. This arrangement means that it is the male that determines the sex of the offspring when fertilization occurs.

Explanation:

Answer:

The primary purpose of a flower is reproduction. Since the flowers are the reproductive organs of plant, they mediate the joining of the sperm, contained within pollen, to the ovules — contained in the ovary. Pollination is the movement of pollen from the anthers to the stigma.

Answer:

Plants occur in dump and shaded areas

They lack vegetative structure

The plant body is prostrate or erect

They lack vascular system

Answer:

6. Current = 8.33 Amps

7. Energy = 1200 Joules

Explanation:

Given the following data;

6. Power = 1000 Watts

Voltage = 120 Volts

To find the current flowing through;

Power = current * voltage

1000 = current * 120

Current = 1000/120

Current = 8.33 Amps

7. Power = 900 Watts

Time = 45 minutes to hours = 45/60 = 0.75 hours

To find the energy consumption;

Energy = power/time

Energy = 900/0.75

Energy = 1200 Joules

Answer:

core of the earth

Explanation:

the biosphere is the inside of earth

Answer: C. is your answer

Explanation: It means the species shared a common ancestor in the recent past.

Answer:

The answer would be c

Explanation:

ACTCAAGAC

TGAGTTCAG

they compliment one another

Answer: c. TGAGTTCTG

Explanation: Adenine only bonds with thymine and cytosine only bonds with guanine

Answer:

1 AAGCCA

2 ACCGAA

3 TTCGGT

4 CCATTC

Answer:

Yes.

Explanation:

Yes, the positive charges on both calcium ions and sodium ions will responsible for the movement of these ions into or out of the cell because the membrane has negative charge which attract these positively charged calcium ions and potassium ions. These difference concentrations of sodium and potassium in the cell are due to the activity of cell membrane active transport system which moves sodium out of the cell and potassium into it.

Yes, the positive charges of calcium ions and sodium ions make these ions more likely to move into or out of the cell.

Diffusion may be defined as a process resulting from the random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.

The membrane of a cell possesses a negative charge, so it attracts these positive charge ions and makes a concentration difference that leads to the process of active transport through which sodium moves out of the cell and potassium into it.

Therefore, Yes, the positive charges of calcium ions and sodium ions make these ions more likely to move into or out of the cell.

To learn more about Diffusion, refer to the link:

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A mutation scenario that will lead to natural selection is one that causes a specific variation within the population. Thus, the correct option for this question is C.

A mutation may be defined as a type of process that significantly involves sudden, stable, and inheritable changes in the genetic material of an organism. The organism that undergoes mutation is called a mutant. The agent of mutation is called mutagen.

According to the context of this question, the process of mutation never causes a positive influence on the organisms, but with respect to time organisms become adapted or habitual.

A Mutation may be random and spontaneous so, it does not always involve an inactivated gene being reactivated. It sometimes involves the introduction of a new gene that facilitates specific functions.

Therefore, a mutation causes a specific variation within the population is a mutation scenario that will lead to natural selection. Thus, the correct option for this question is C.

To learn more about Mutation, refer to the link:

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Answer:

5 second s.

Explanation:

The base unit for time is the second (the other SI units are: metre for length, kilogram for mass, ampere for electric current, kelvin for temperature, candela for luminous intensity, and mole for the amount of substance). The second can be abbreviated as s or sec.

5.14 seconds

Explanation:

It gives a more specific time compared to 5.1 & 5

Answer:

its the second answer

Explanation:

Answer:

Explanation:

1)respiratory system

2)trachea, bronchi, bronchioles, alveoli, lungs, diaphragm

3)trachea

4)inhale oxygen and exhale carbon dioxide

5)gas exchange

Answer:

Ventral

Explanation:

This is because when you want to dissect a pig, it's back is place on a dissecting tray and it's belly side is up which is the ventral side. With the ventral side, dissection will be easy and the major organs and systems can be observed easily as they will be rightly viewed because they are obvious and rightly placed at belly side up.

Answer:

Changes from flooded to drained conditions in soils stimulate changes from aquatic to terrestrial vegetation and decrease the algal contribution to total primary production. Drainage of organic soils then has the effect of removing a source of net primary production (algae) and carbon sequestration

Explanation:

Use different words then I did

Answer:

Soil will become damp and will thrive in water

Answer:

Movement: Parietal

Conscious thought: Cerebral Cortex

Personality: Frontal

Speech/language: Cerebrum

Vision: Occipital

Memory: Temporal

Explanation:

The frontal lobe is important for cognitive functions and control of voluntary movement or activity. The parietal lobe processes information about temperature, taste, touch and movement, while the occipital lobe is primarily responsible for vision. The temporal lobe processes memories, integrating them with sensations of taste, sound, sight and touch.

Sorry I took so long, kept second-guessing myself, apologies if my response is faulty or incorrect. Have a good day/night! :}

Answer:

The period of a wave is the time for a particle on a medium to make one complete vibrational cycle. Period, being a time, is measured in units of time such as seconds, hours, days or years. The period of orbit for the Earth around the Sun is approximately 365 days; it takes 365 days for the Earth to complete a cycle. The period of a wave is the time for a particle on a medium to make one complete vibrational cycle. Period, being a time, is measured in units of time such as seconds, hours, days or years. The period of orbit for the Earth around the Sun is approximately 365 days; it takes 365 days for the Earth to complete a cycle.

Explanation:

it's C