Selective breeding______.

Answer: A and C

Explanation:

AP€X

Answer:

Explanation:

A seed is a plant embryo wrapped in a protective covering. A fruit is the ripened ovary of a plant which contains one or more seeds.

Most plants are rooted in place, which makes dispersing their fruits and seeds particularly important. Seeds that are spread far from the parent plant avoid competition with their relatives for resources and have the opportunity to colonize new areas. Both fruits and seeds have a variety of adaptations for different types of dispersal.

Examples of the some common types of dispersal follow.

Wind

<-- Left : These seeds are transported by air currents. Small fruit or seeds with fine fluff can be carried high up into the air. Herbaceous plants of open areas (like dandelions, cattails, and milkweeds) often have this adaptation. Their seeds float up over neighboring plants even if the parent is growing low to the ground.

Right -->: The fruit of maple trees are also adapted to catch the wind. Many trees (like ashes and sweetgums) have winged fruits or seeds which drop from the tree and are caught by the wind as they fall.

Water

<-- Left : Sea bean seeds are adapted for dispersal by ocean currents. Sea bean vines grow along rivers and coasts. When the pods ripen, they split open and the seeds drop into the water. The beans have a thick seed coat to keep the salt-water out, and have internal structures which make them buoyant enough to float. They can drift for hundreds of miles before washing up onto land.

Coconuts (which are single-seeded fruits) are also adapted for water dispersal. Like sea beans, they have a thick shell to prevent the salt-water from damaging the seed, and the buoyant hull keeps the nut floating.

Animals: internal transport

<-- Left : Brightly colored fruits advertise for dispersers. They are highly visible to birds, promising a nutritious (and often sugary) reward. The seeds are tough and usually undamaged when eaten. They are dispersed when the bird makes a rest stop.

Right -->: Immature seeds in unripe fruit would die if eaten. The green of young fruit hides them among leaves. Unripe fruit are sour or bitter to discourage animals that do find them. Green fruit cling tightly to the plant, making it hard for animals to remove them.

Animals: external transport

<-- Left: Cockle burrs are dry fruit adapted for animal dispersal. The hooked spines catch on the hair (or socks) of passing animals. Dispersal is complete when the animal picks off the offending burr, hopefully dropping it in a new location suitable for growth.

Right -->: Fruit of the unicorn plant have an unusual adaptation for transport. As grazing deer or antelope walk over them, the spines catch around the animals' feet. When the animal finally gets annoyed and shakes the fruit off, dispersal is complete.

Answer:

B.Scientists are unable to map out the location of tec-tonic plate boundaries.

Explanation:

By plotting the locations of earthquakes, scientists have not only been able to locate plate boundaries but have also been able to determine plate characteristics and predict the movement of the plates. In this investigation, you will plot the locations of earthquakes and determine the boundaries of the earth's plates

Scientists are unable to map out the location of tectonic plate boundaries. So, the correct option is B.

A tectonic plate also known as a lithospheric plate is defined as a massive, irregularly shaped slab of solid rock that is composed of both continental and oceanic lithosphere. Plate size can vary from a few hundred to thousands of kilometers

By plotting the locations of earthquakes, scientists have not only been able to locate plate boundaries but they have also been able to determine plate characteristics and predict the motion of the plates. In this investigation we will plan the locations of earthquakes and determine the boundaries of the Earth's plates.

Thus, scientists are unable to map out the location of tectonic plate boundaries. So, the correct option is B.

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Answer: yes

Explanation: there are 4 layers the outer layer is what we live on

Answer:

A

Explanation:

Natural selection occurs because those with more favorable traits survive while the others don't. If there are no favorable traits in a community then there is no natural selection.

Answer:

The answer is B. Stratum Basale

Answer:

Beneficial is fruit ripening

And negative is abscission.

Explanation:

Ethylene is a plant growth regulator or phytohormone of plant. It is beneficial to plants in that it aid fruit ripening, it hasten flower opening and shedding of leaves.

Ethylene also have a negative effect and they include; Ethylene effects include: it result in loss of chlorophyll, abortion of major plants part, it lead to the stem shortening, abscission or dropping of plant parts, epinasty, and dormancy and scinence. Thus hormone can be produced when plants are injured, either mechanically or are affect by certain disease

Answer:

True

Explanation:

because a new speicies would have just entered their territory and good be a good source of food or could be nice for the land

The true statements about the lipids are as follows:

Lipids are organic compounds made up of fatty acids or fatty acid derivatives that are soluble in non-polar solvents and insoluble in water.

Thus, the correct options are - A, B, and D.

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Answer: A

Explanation:

i took biology and all that fun stuff with trophic levels

Answer:like when you have a sore throat or a kind of common sickness

Explanation:

Answer:

Glycolysis, which is the first step in all types of cellular respiration is anaerobic and does not require oxygen. If oxygen is present, the pathway will continue on to the Krebs cycle and oxidative phosphorylation. However, if oxygen is not present, some organisms can undergo fermentation to continually produce ATP.

Answer:

the complete process

Explanation:

i hope this helped!

Answer:

it is option B this is correct

Hydrophobic lipid fatty acid tails turn away that is they repel from water as lipids are fat insoluble which are present in cell membrane. Thus, the correct option is B.

Lipid molecules are hydrophobic in nature. There are three major classes of membrane lipid molecules including phospholipids, cholesterol, and glycolipids. The lipid composition of the inner and the outer monolayers are different from each other, this reflect different functions of the two faces of the cell membrane.

The most important lipid component of the plasma membrane is Fatty acid. An fatty acid is a monocarboxylic acid with a long generally 14 to 24 carbons long chain, it is unbranched, hydrophobic tail which may be either saturated or unsaturated with zero to six cis, non-conjugated double bonds in the compound. The hydrophobic lipid fatty acid tails turn away or repel from water.

Therefore, the correct option is B.

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Answer:

sexual reproduction

Answer:

D) All of the above

Explanation:

edge 2020-2021

Answer:

D.) All of the above

Explanation:

got it right on edge 2021

Answer:

the sun hot stuff

Answer: Energy flows through an ecosystem in only one direction. Energy is passed from organisms at one trophic level or energy level to organisms in the next trophic level.

If you want to know the main source of energy... the answer is the sun.

Answer: The removal of portions of RNA known as intervening sequences (introns)

Explanation:

The removal of portions of RNA is known as intervening sequences (introns).

In order to enable the translation of mRNA into a protein, RNA splicing puts together the protein-coding regions (exons) and cuts out the intervening, non-coding segments of genes (introns) from pre-mRNA.

Intron sequences are cut out and exon sequences are joined during the splicing process.

As RNA matures, introns are cut out via RNA splicing, which means that they are not expressed in the resulting messenger RNA (mRNA) product.

In contrast, exons continue to be chemically bound to one another to produce mature mRNA. Exons are expressed sequences, whereas introns can be thought of as intervening sequences.

Therefore, the removal of portions of RNA is known as intervening sequences (introns).

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Answer:

Currents moving the ducks with them.

Answer:

Kind of Know

Explanation:

Tectonic plates shift all of the time, thats why we have oceans where we have oceans. So, the rubber ducks moed along the ocean patterns based off of the tetonic plates. I am pretty sure, hope this helps :).

Answer:

Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth and better at surviving in the wild than offspring of birds with fewer eyespots.

Answer:

what I didnt  understand the question

Explanation:

Answer:

structural

Explanation:

In addition to flight and body feathers, birds also have down feathers. Down feathers are soft and fluffy because they don't have barbules and barbicels (the structures that hook feather barbs together). Down feathers help to keep a bird warm by trapping air close to the body, which insulates the bird from the cold.

Answer:

b

Explanation:

that defines sleet. sleet is frozen rain

Answer:

option A is the right answer for this que

Answer:

Its partially true!!

the first part is true but 2nd part is false

You can choose False

Answer:

D

Explanation:

The purpose of meiosis is to produce gametes, somatic cells or sex cells. So The answer would be D

To grow new somatic cells is the overall purpose of meiosis.

Meiosis is a special type of cell division of germ cells in sexually-reproducing organisms that produces the gametes, such as sperm or egg cells. It involves two rounds of division that ultimately result in four cells with only one copy of each chromosome.

The purpose of meiosis is to produce gametes, the sperm and eggs, with half of the genetic complement of the parent cells. In the figures below, pink represents a genetic contribution from mom and blue represents a genetic contribution from dad.

Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. These cells are our sex cells – sperm in males, eggs in females.

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Answer:

Photosynthesis and carbohydrates

Explanation:

The process converts the energy from sunlight into chemical energy stored in the bonds of (carbon dioxide/ carbohydrates/ proteins/ water molecules).