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ladessa [460]
3 years ago
14

4. Migration of animals in the savanna is mostly a response to...

Biology
2 answers:
zvonat [6]3 years ago
6 0

Answer:

D

Explanation:

Ann [662]3 years ago
3 0

Answer:

Rainfall?

Explanation:

Im not sure on this but I think this is the correct answer.

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Please help!!!
MaRussiya [10]

Answer:

Explanation:

A sequence of flowing lava, pyroclastic flows, volcanic eruptions, caldera-forming events, and earthquakes changed the landscape of Yellowstone forever. The pressure exerted by the magma chamber has resulted in measurable ground deformation in certain parts of Yellowstone known as resurgent pressure domes.

Fire Activity also causes the Yellowstone to change. As the number of very large wildfires and total acres burned annually increases, there is an increasing frequency of warm spring and summer temperatures, reduced winter precipitation, and early snowmelt in the Western United States during the last 20 years.

In 1995, the wolf population increased in Yellowstone, causing the deer population to decrease and to change their behavior. When threatened by wolves, deer graze less and move about to aerate the soil.

In the 70 years since the wolves left Yellowstone, the entire ecosystem had collapsed into chaos, with coyotes running riot, and elks overgrazing willows and aspens. Without those trees, songbirds declined, beavers could not build their dams, and riverbanks eroded.

4 0
3 years ago
The illustration below shows the steps of meiosis I. What is the step that is labeled D? metaphase I metaphase II telophase II t
WITCHER [35]

The right answer is metaphase II.

The process is performed in two nuclear and cytoplasmic divisions, called first and second meiotic division or simply meiosis I and meiosis II. Both include prophase, metaphase, anaphase, and telophase. First division prophase is long and consists of 5 stages: leptotene, zygotene, pachytene, diplotene, and diakinesis. It is at this point that genetic recombination takes place at the level of chiasmus.

During meiosis I, the members of each homologous pair of chromosomes are paired during prophase, forming bivalents. During this phase, a protein structure, called synaptonemal complex form, allows recombination between homologous chromosomes. Subsequently, a large condensation of the bivalent chromosomes occurs and go to the metaphase plate during the first metaphase, resulting in the migration of n chromosomes to each of the poles during the first anaphase. This reduction division is responsible for maintaining the number of chromosomes characteristic of each species.

In meiosis II, as in mitosis, the sister chromatids comprising each chromosome are separated and distributed between the nuclei of the daughter cells. Between these two successive steps, there is no DNA replication. The maturation of the daughter cells will result in the gametes.

7 0
3 years ago
Read 2 more answers
Giving all the jazz! How many genes are needed to control a single-gene trait?
ElenaW [278]

Answer:

One.

Explanation:

6 0
3 years ago
Hyperglycemia (elevated blood sugar levels), such as would happen in diabetics, can damage the glomeruli.
Zielflug [23.3K]

Answer:

True

Explanation:

Hyperglycemia which means high Glucose level in the blood as a result of lack of insulin can damage the glomeruli. This interfere with the function of the glomeruli. Normally glomeruli fiters blood and remove nutrients to form urine but hyperglycemia will affect it's negatively and will make protein to leak from the blood into the urine. This can also lead to glomeruli called glomerulosclerosis.

6 0
3 years ago
Which system is not necessary to an individual's life?
arlik [135]

Answer:

c. reproductive

Explanation:

an organism can live without the ability to reproduce, and reproductive organs can actually be removed with little affect on an organisms health. we cant live without the other options though.

8 0
3 years ago
Read 2 more answers
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