BIOLOGY HIGH SCHOOL

Earth’s continents are constantly in motion because they sit on top of gigantic plates which float on Earth’s mantle. Energy from the Earth’s core creates convection currents in the molten layer, and the currents move the plates. Over extremely long periods of time, this movement creates new _______. a. biomes b. plates c. atmospheric layers d. elements

Answers

Answer 1
Answer: The correct answer is A. Biomes.

Earth’s continents are constantly in motion because they sit on top of gigantic plates which float on Earth’s mantle. Energy from the Earth’s core creates convection currents in the molten layer, and the currents move the plates. Over extremely long periods of time, this movement creates new biomes.
Answer 2
Answer:

The continents of the Earth are constantly in motion . The reason for this motion is the position of the tectonic plates over the mantle of the Earth. The movement of these plates, causes the continents to move. Over the time, these movements becomes substantial and the drifting of the continents is visible. This leads to the formation of the new biomes. The flaura and fauna changes with these movements.

Hence, the correct answer is 'Option A - Biomes'.

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Which of the following is considered a noncovalent bond?A. Electrostatic interactions.
B. Hydrogen bonds.
C. Van der Waals interactions.
D. All of the above.

Answers

Hydrogen bonds I’m pretty sure

What relationship does a lamprey attached to another fish have with that fish?a. mutualism
b. parasitism
c. competition

Answers

Answer:

Parasitism

Explanation:

Parasitism may be defined as a biological interaction in which one organism (parasite) lives on the body of other organism (host). The parasite can directly obtained ready-made food from the host.

Lamprey attaches with another fish , can directly obtain nutrient and may cause harm to fish. Here, lamprey is parasite and the fish acts as a host for lamprey.

Thus, the correct answer is option (b).
Lampreys are parasitic fish, so the relationship is also parasitic.

Which of the following properties of transposable elements allows them to contribute to the C-value paradox?A. Their copy number can increase from one generation to the next.B. Their replication is controlled by genes found on the transposable element itself.C. Copies of transposable elements can appear on multiple chromosomes.D. All of these choices are correct.

Answers

Answer:

All of these choices are correct.

Explanation:

Transposons are the DNA sequences that can move from one location to another in the genome. The transposon genes are also known as jumping genes.

The C value paradox of the transposable elements depends on the different factors. The transposons can increase their number by copy and paste mechanism. The genes can be controlled by the enzyme transposase and their copies may exist at the different site of the chromosome.

Thus, the correct answer is option (D).

In order to yield a haploiddiploid chromosome condition, only one sperm can fertilize one egg.

Answers

Haploid cells have half a set of chromosomes (in humans, this is 23). Diploid cells have a full set of chromosomes (in humans, this is 46). Haploid cells are generally used in reproduction, as they are sperm and egg cells, and are known as gametes. Haploid cells are formed through meiosis, while diploid cells are formed through mitosis.

the answer is ( diploid )

Explanation: great day !

25) when does the synaptonemal complex disappear?; a) late prophase of meiosis i; b) during fertilization or fusion of gametes; c) early anaphase of meiosis i; d) mid-prophase of meiosis ii; e) late metaphase of meiosis ii

Answers

C) early Anaphase of meiosis.

Final answer:

The synaptonemal complex, which forms between homologous chromosomes during meiosis for crossover or recombination, disappears during the late prophase of Meiosis I.

Explanation:

The synaptonemal complex is a protein structure that forms between two homologous chromosomes during meiosis and it plays a crucial role in the crossover or recombination process. This structure disappears during the late prophase of Meiosis I.

In other words, option a) late prophase of meiosis I is the correct answer. The disappearance of the synaptonemal complex signifies the end of the crossing over process and the start of the chromosomes moving apart.

Learn more about synaptonemal complex here:

brainly.com/question/32167505

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Omnivores are most likely to be (a specialized species, highly evolved, a generalized species, ketstone predators)

Answers

The correct answer that would best complete the given statement above is the third option: a generalized species. Omnivores are most likely to be a generalized species. Omnivores are animals that consumes food both from plants and animals. These animals are both herbivores and carnivores. Hope this answer helps.

Answer:

a generalized species

Explanation:
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