Speciation is an event
True
False

Answers

Answer 1

Answer:

yes/ true

hope this helps;)

Answer 2
The answer is true cause I looked it up

Related Questions



As a plant grows, new root hair cells are formed from unspecialised cells.

How does an unspecialised cell become a new root hair cell?

Answers

Answer:

Root hairs appear in the root maturation zone and differentiate from unspecialised cells called trichoblasts.

Explanation:

Root hair arises as a small protrusion surrounded by a cell wall, they are found in the piliferous area; they can originate in unspecialised epidermal cells, in some called trichoblasts. The bump begins to elongate and moves away from the epidermis, forming root hair. The root hairs as they lengthen, it is seen that their content shows a polarized distribution, the apical part is constituted mainly by vesicles secreted by the Golgi apparatus that contain the precursors of the cell wall that are to be released by exocytosis. Trichoblasts can be arranged in different ways, there are roots where any of the cells that are part of the rhizodermis can give rise to a root hair. In other roots, trichoblasts and atricoblasts have been seen to be distinguished alternately along a row of cells.

How do the vacuoles and cytoplasm contribute to maintaining homeostasis in a cell?

Answers

Answer:

Vacuoles regulate the turgidity by regulating the amount of water inside the cell. cell has excessive water: vacuole absorbs the water and then diffuses it out of the cell. cell lacks water: water from the vacuole gets passed back into the cell thereby maintaining turgidity

Des a magnetic field flows though the inside of a magnet

Answers

Answer:

Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the magnet, toward the south pole of the magnet.

Explanation:

Answer:

However, the magnetic field lines do not just end at the tip of the magnet. They go right through it, so that inside the magnet the magnetic field points from the south pole to the north pole. Thus the magnetic field lines form a closed loop and do not have any ends.

Explanation:

So it's probably YES.

In humans, there is a dominant allele that causes vitiligo, where small-unpigmented spots appear on the body. Also, there is a recessive allele for another gene that caus- es albinism, which causes the entire body to be unpig- mented. Vitiligo cannot be seen in albinos. A man with vitiligo had an albino mother and normal father. If the man has a child by a phenotypically normal skinned woman who had an albino father, what is the probability of having a phenotypically normal child

Answers

Answer:

probability = 0

Explanation:

The probability of having a phenotypically normal child is = 0

This is because since the Paul has Vitiligo and the vitiligo ( allele ) is a dominant allele and hence the allele will be passed onto the Child ruling out the chance of the couple having a phenotypically normal child

A group of beetles live in forest with medium brown tree trunks where these beetles like to hide. Most of the beetles are medium brown, but about 10% are grey. This beetle species is often prey for large birds that live in the forest. A new coal fired power plant opens in the area and the trees become covered with a layer or grey ash. What do you predict will happen to this beetle population

Answers

Answer:

it will decrease with cause of power plant

Explanation:

Match each stem or root to its description.
Fibrous
Herbaceous
Taproot
Woody

Answers

Do I have to write my own description?

84. The carries blood rich in nutrients and oxygen to the fetus.

Answers

Answer:

The umbilical cord? (might be wrong tho)

Answer:

The umbilical vein carries oxygenated, nutrient-rich blood from the placenta to the fetus, and the umbilical arteries carry deoxygenated, nutrient-depleted blood from the fetus to the placenta

Explanation:

hope it becomes helpful to you ☺️☺️

good luck

If you wanted to study the effects of soil moisture and light intensity on the growth of soybeans and required a high ability to regulate these independent variables, what type of experiment would you choose?A. Laboratory experiment.
B. Field experiment.
C. Natural experiment.
D. Reference experiment.

Answers

Answer:

A

Explanation:

The correct answer would laboratory experiment.

In the laboratory, variables can be controlled as much as possible using relevant equipment unlike in natural habitats or field experiments. For example, the amount of water that each plant would receive can be measured using measuring cylinders and the time they are applied can also be fixed.

Field and natural experiments require that experimental procedures are carried out in the field under natural conditions. Consequently, variables such as the amount of moisture that gets into the soil or the amount of light a plant will receive will be extremely difficult to control. Precipitation time and the duration of light can also not be controlled.

The correct option is, therefore, A.

do you gain or lose electrons during photosynthesis?

Answers

Answer:

hello

Explanation:

i think it gains electrons

hope it helps

have a nice day bye

1. Which statement best describes conservation?
A. use of natural resources
B. maintaining the life of ecosystem
C. wise use and preservation of resources
D. utilizing of earth's resources
2. Which human activity contributes to the destruction of forest?
A. reforestation
B. deforestation
C. protecting the forest against harmful activities
D. all of the above3. The following are ways to conserve Earth's resources, which one is NOT?
A proper waste disposal
B. reduce air and water pollution
C buy products made from animals
D. help raise funds for environmental conservation
4. Which of the following destroys coral reefs?
A building man-made fish sanctuaries
B. dynamite fishing
C waste dumping
D. both B and C
5. Ecosystem is an environment where both living and non-living
things exist and
with one another
A disagree
B. interact
C. compete
D. disconnected​

Answers

1. Which statement best describes conservation?

C. wise use and preservation of resources

2. Which human activity contributes to the destruction of forest?

B. deforestation

3. The following are ways to conserve Earth's resources, which one is NOT?

C. buy products made from animals

4. Which of the following destroys coral reefs?

D. both B and C

5. Ecosystem is an environment where both living and non-living things exist and with one another

B. interact

Conservation is the careful protection and preservation of the environment. Option C is correct.

The activity of man that leads to the deforestation of the forest lands is deforestation. Hence the option B is correct. The conservation of the earth's resources depends on many factors but it does not on buying products made from animals. Hence the option C is correct. The factors that destroy the coral reefs are B and C that are waste dumping and dynamite fishing. The ecological unit of the ecosystem includes the biotic and abiotic forms in order to interact with each other. Hence the option B is correct.

Learn more about the best describes conservation.

brainly.com/question/1619465.

How organisms get ATP out of the food they eat

Answers

Organisms get ATP through cellular respiration.

3.
A behavioral adaptation when an animal becomes inactive in the winter is _____.

camouflage

migration

sleeping

hibernation

Answers

Hibernation Explanation it just is
Hibernation because that’s what animals do

The temperature at which air becomes saturated with water vapor is called the _____.

Answers

the dew point

is the point were air is saturated with water vapour, which is the gaseous state of water.

hope it's perfect for you.

Which of the following characteristics only pertains to chloroplasts?

Answers

Answer:

Chloroplasts are a type of plastid—a round, oval, or disk-shaped body that is involved in the synthesis and storage of foodstuffs. Chloroplasts are distinguished from other types of plastids by their green colour, which results from the presence of two pigments, chlorophyll a and chlorophyll b.

Explanation:

I hope this helps and pls mark me brainliest :)

give me the definition of natural selection

Answers

a natural process that results in the survival and reproductive success of individuals or groups best adjusted to their environment and that leads to the perpetuation of genetic qualities best suited to that particular environment

Regulates body activities using hormones...

A. Nervous
B. Excretory
C. Endocrine
D. Reproductive

Answers

C. Endocrine

The Endocrine system regulates the activities of the body by secreting complex chemical substances (hormones) into the blood stream.

I would appreciate brainliest, if not that’s ok!

Sheep Brain Dissection Steps

Answers

Sheep brains, like other sheep organs, are much smaller than human brains, but have similar feature. They can be a valuable addition to your study of anatomy.

See for yourself what the cerebrum, cerebellum, spinal cord, gray and white matter, and other parts of the brain look like with this sheep brain dissection guide! Use this for a high school lab, or just look at the labeled images to get an idea of what the brain looks like.

You’ll need a preserved sheep brain for the dissection. Set the brain down so the flatter side, with the white spinal cord at one end, rests on the dissection pan. Notice that the brain has two halves, or hemispheres. Can you tell the difference between the cerebrum and the cerebellum? Do the ridges (called gyri) and grooves (sulci) in the tissue look different? How does the surface feel?

Turn the brain over. You’ll probably be able to identify the medulla, pons, midbrain, optic chiasm, and olfactory bulbs. Find the olfactory bulb on each hemisphere. These will be slightly smoother and a different shade than the tissue around them. The olfactory bulbs control the sense of smell. The nerves to the nose are no longer connected, but you can see nubby ends where they were. The nerves to your mouth and lower body are attached to the medulla; the nerves to your eyes are connected to the optic chiasm. Using a magnifying glass, see if you can find some of the nerve stubs.

The nucleus of an atom comprises of _______________ and _______________

Answers

Answer: protons and neutrons

Explanation:

Answer:

positively charged protons and neutral charged neutrons.

Explanation:

PLS PLS PLS PLS HELP ASAP DUE RIGHT NOW PLSSS

Which arrows show matter moving from a producer to an omnivore? Select all that apply.

A. The arrow between the phytoplankton and the clam

B. The arrow between the rockskipper and the peacock flounder

C. The arrow between the phytoplankton and the rockskipper

D. The arrow between the macroalgae and the triggerfish

E. The arrow between the macroalgae and the damselfish

Answers

Answer:

macro one and tiger fish

Explanation:

i think im right because the tiger fish eats both plants and animals

Identify the 3D shape shown below.
Choose 1 answer:
Rectangular prism
Square pyramid
Triangular prism

Answers

The 3D figure is a triangular prism

Answer:

The answer is C (Triangular Prism)

Explanation:

How much of the world does the tropical rainforest biome currently cover?

Answers

Answer:

13 percent

Explanation:

Hi, please help me (it’s science)

Answers

i believe the answer is B

The diagram models a hypothesis situation in which every location on earth would have 12 hour of daylight and 12 hours of darkness per day is earth orbit is perfect circle. Hence option B is correct.

What is hypothesis?

Hypothesis is defined as a concept or assumption put forth for the sake of discussion and examined to see if it might be true. A hypothesis is seen as a wise guess or prediction that points the researcher in the right path as they attempt to respond to the research topic.

Earth rotates on its axis, or turns, once every 24 hours, carrying us all along with it. When we are on the side of the Earth that faces the Sun, we experience daylight.  We are now on the side of the Earth that faces away from the Sun, and night has fallen.

Thus, the diagram models a hypothesis situation in which every location on earth would have 12 hour of daylight and 12 hours of darkness per day is earth orbit is perfect circle. Hence option B is correct.

To learn more about hypothesis, refer to the link below:

https://brainly.com/question/13025783

#SPJ2

When energy is changed from one form to another with very little loss, the process is said to be
A) efficient

B) advantageous

C) transformed

Or d) excellent

Answers

Answer:

A

Explanation:

Efficiently

Using genetic code table translate this mRNA sequence. AUG CUU AAG GGU CGU CAU UAG.

Answers

Answer:

Explanation: g

How many phases are in "mitosis"?

Answers

Answer:

Four.

Explanation:

Prophase -> Metaphase -> Anaphase -> Telophase.

These phrases are prophase, pro metaphase, metaphase, anaphase and telophase. There are 5 phases

What Relative Dating technique refers to missing rock records?

Answers

Answer: Fossils and relative dating

Explanation: Land and rock experts have studied the order in which (things in rocks that lived a long time ago/old, outdated things) appeared and disappeared through time and rocks. This study is called biostratigraphy.

Answer:

Give that guy brainly ^

Explanation:

:)

Which of the following does not explain why if two people are exposed to the same high stress causing conditions, there is a likelihood that they will not be affected the same way? A) the two have different lifestyles B) some people are not at all affected by stress C) gene-environment interactions may affect the level of depression D) people react differently to stress E) presence of a specific gene variation

Answers

Answer:

Probably B

Explanation:

They all explain it, honestly, but B sounds the least like an answer they would accept as true. It's also kind of sus that they have 2 different answers about reacting differently to stress, and B is definitely the least likely of the two to be correct. Sorry I couldn't be more helpful, I'm only here because I searched for the answer myself. Good luck.

Question 4
Place the following in correct developmental sequence:
1. reticulocyte
2. Proerythroblast
3. hemocytoblast
4. erythroblast
3.2.4.1.
3.1.4.2.
2.3.4.1.
2.1.3.4.

Answers

.3.1.4.2

-3. hemocytoblast

-1. reticulocyte

-4. erythroblast

-2. Proerythroblast

All of the following are examples of convection currents, except

Answers

Answer:C, water flowing through pipes

Explanation:the answer is C because convection is when molecules are traveling from one place to another place instead of jiggling back and forth, so when water flow through the pipe it’s the substance that is moving which makes it wrong and an answer!

Answer:

C

Explanation:

7. True or False. Transitional organisms are not actual species."

Answers

False I’m pretty sure

Answer:

False.

Explanation:

Transitional forms are species in their own right. They are called transitional forms because they possess traits, like fins, that are found in earlier fossil animals, but also possess traits, like limb bones, that are found in later fossil animals.

hope i helped:)

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