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drek231 [11]
3 years ago
13

Aphids use specialized organs to pierce a plant and suck out the sap from the underside of leaves. During feeding, they can infe

ct plants with viruses. Which pathway would viruses most likely follow on first entering the plant?
Biology
2 answers:
kotykmax [81]3 years ago
4 0
<span>A. Roots    B. Stem    C. Xylem    D. Phloem

The pathway that the viruses would most likely follow on first entering the plant is D. PHLOEM.

The phloem, whose purpose is to transport food from the leaves to the plant, is used as the pathway to spread the virus throughout the plant. The manifestation of aphid transmitted virus is the yellowing, mottling, or curling of leaves and the stunted growth of the plant. 

</span><span>
</span>
Alla [95]3 years ago
3 0
<h2>Answer: D. Phloem</h2>

Explanation: APEX answer 5/22/19

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Heredity refers to the __________.
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I think the answer would be D since the definition of heredity is <span>the passing on characteristics genetically from one generation to another.</span>
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3 years ago
Each biological species is genetically isolated from other species. why do the species evolve independently?
Nookie1986 [14]
Species evolve independently possibly due to geographical isolations or behavioural isolations.

Geographical isolation includes the isolation of 2 groups of the same species. Since these 2 groups live in different locations, (e.g. a volcanic eruption resulting in a barrier between one side of an ocean and another side of the ocean), they will have different selection pressures in their different environments as well (e.g. one side of the ocean may have more sunlight and thus more underwater plantations than the other side of the ocean). Natural selection will eliminate those with disadvantageous characteristics (e.g. Fishes that only eat plants and nothing else on the side of the ocean with little plantations) with unfavourable alleles, and select for those with advantageous characteristics (e.g. Fishes are able to eat plants and other organic substances as well on the side of the ocean with little plantations) with favourable alleles.

Since the 2 groups have different selection pressures, natural selection will occur in different ways, selecting for and against different types of fishes with different types of alleles. Also, because of the barrier, they are not able to mate with each other, and there are no mixing of genes from one side of the ocean and the other side. They are genetically isolated. As genetic drift occurs over time, their gene pools become different from each other. Thus, they evolve independently.

Hope this helps! :)
7 0
3 years ago
What are some characteristics of the marine biome? Please help!​
grigory [225]

Answer:

marine biome abiotic and biotic features. The abiotic features in the marine biome is the sunlight the water/ocean ,salinity, acidity, oxygen, light levels, depth, and temperature because its not living. some fects about the marine biome, Reef fish and coral off Eniwetok atoll in central Pacific.

Properties of Ocean Water. Ocean waters are salty and contain minerals and dissolved gases. They also have a high heat capacity and vary in density depending on temperature and salinity.

Explanation:

marine biome-The marine biome is an environment characterized by the presence of salt water. The marine biome is found in all of Earth's oceans and is the largest biome in the world. The marine biome is home to an amazing array of living organisms, from the enormous blue whale to microscopic cyanobacteria.

<em>Here are just a few of the animals that you will find in the marine biome: </em>

Fish - Sharks, swordfish, tuna, clown fish, grouper, stingray, flatfish, eels, rockfish, seahorse, sunfish mola, and gars.

Marine mammals - Blue whales, seals, walruses, dolphins, manatees, and otters.

5 0
3 years ago
Which factor explains that in general, temperate and polar regions have less biodiversity than tropical regions
frutty [35]

Answer:

Follows are the solution to this question:

Explanation:

The following are the two considerations demonstrating that there would be less biodiversity than the tropical areas in the Mediterranean climate as well as polar areas.

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  • The second reason is early in the earth's history, the northern latitudes are inhabited.
4 0
2 years ago
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