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xz_007 [3.2K]
3 years ago
15

How do the Earth’s physical factors influence population density? When population growth increases in an area, what is happening

to the birth rate and age structure of that population?
Biology
1 answer:
aev [14]3 years ago
7 0

Answer:

question 1:

  • both the number of species and population density decreases as altitude above sea level increases

question 2:

increase in birth rate => greater number of young organisms

Explanation:

As altitude above sea level increases, O2 density decreases, the amount of UV rays increases and the difference between daytime and nighttime temperature increases

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The male<span> pelvis exhibit more prominent (pronounced) bone markings than the female pelvis because of the reason the male pelvis has larger leg muscles than the female pelvis. The male pelvis would exhibit more prominent bone markings because they have larger leg muscles.</span>
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3 years ago
Which of the following statements about speciation is true? Which of the following statements about speciation is true? Speciati
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The answer is Speciation cannot occur in the absence of mutation. Speciation cannot occur in the absence of natural selection

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3 years ago
Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homozygous
9966 [12]

The cross between parent plants if one is heterozygous for yellow pods and the other is homzygous for green pods - Yy yy., i.e., option A.

<h3>What is heterozygous?</h3>

The occurrence of different types of alleles is referred to as heterozygous condition.

A heterozygous genotype may consist of one normal allele and one mutated allele, or two distinct mutated alleles.

The missing options of the question are:

  1. Yy ´ yy
  2. YY ´ yy
  3. Yy ´ Yy
  4. yy ´ yy

The cross between parent plants if one is heterozygous for yellow pods and the other is homzygous for green pods - Yy yy.

Thus, the correct option is A.

For more details regarding heterozygous genotype, visit:

brainly.com/question/238628

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3 0
2 years ago
Bacteria are grown in a petri dish. One side of the dish is sprayed with an antibiotic. After a week, the number of bacteria col
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Answer:

In a research there are two variables independent and dependent variable. independent variable is defined as the variable which is controlled and changed in a scientific experiment and evaluate the effects on the dependent variable while the variable which are tested and measured in experiment are called dependent variable.

When antibiotic is sprayed at one side of the petri dish, the bacterial growth on that side will eventually decrease in comparison to other side.

So, the independent variable in this experiment will be antibiotic because it is used to understand the growth of bacteria by decreasing their numbers and the dependent variable in this experiment will be bacteria as they vary according to the change in independent variable that is antibiotic.

7 0
3 years ago
Interesting Facts (don't tell me definition cuz I already know it) about xylem, at least one
horsena [70]

Answer:

Its cells have thick, hard walls.

Explanation:

7 0
3 years ago
Read 2 more answers
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