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nexus9112 [7]
3 years ago
11

Which of the following statement are true? Select all the apply. A compass needle is affected by Earth's magnetic field. A magne

tic field is strongest at the poles. Earth's geographic North Pole is also its magnetic North Pole. Electrons are responsible for generating magnetic fields
Biology
1 answer:
beks73 [17]3 years ago
3 0

Answer:

A compass needle is affected by Earth's magnetic field.

A magnetic field is strongest at the poles.

Explanation:

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Limestone deposits can help researchers learn about what the area was like
Ivahew [28]

Limestone deposits can help researchers learn about what the area was like  thousands of years ago as Limestone can contain fossilized plants and animals.

Explanation:

  • Limestone often contains fossils of shelled sea creatures. Entire reef formations and communities of organisms are found preserved in limestone.
  • The types of fossils found in limestone include coral, algae, clams, brachiopods, bryozoa and crinoids.
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6 0
3 years ago
Which of the following is an example of Mendel’s Law of Dominance? * 1 point A dog breeder breeds a brown dog and a black dog an
Mashutka [201]

Answer:

A dog breeder breeds a brown dog and a black dog and all the puppies are brown.

Explanation:

This is because of the Mendelian inheritance order of characteristics. In all other example, there are several other things that don't align with this order like gender variability, specie variability etc.

All the puppies are brown and this shows proper and complete dominance in accordance with the law...

6 0
3 years ago
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Bottom trawling is a destructive fishing practice that destroys ocean habitats<br>T<br>F
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6 0
3 years ago
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This is the inability to perceive differences between some or all hues that other people can distinguish, most of the time it is
Anastasy [175]

Answer:

colorblindness

Explanation:

6 0
3 years ago
Someone please calculate the ratio of offspring please help pleaseeeeeeeeeeeeeeee
Over [174]

Answer:

2. 1 Pink : 1 white

3. 1 Red : 1 Pink

4. 1 Red : 2 Pink : 1 White

Explanation:

This question involves a single gene coding for flower colour in snapdragon plants. The alleles of the gene exhibits incomplete dominance i.e. the red allele (R) ia not completely dominant over the white allele (W), hence an intermediate pink phenotype (RW) is formed. Based on this, a red snapdragon will have genotype, CRCR while a white one will have genotype, CWCW. The intermediate pink phenotype will have a genotype, CRCW.

The image attached to this question shows four crosses between different traits.

In the second cross between a pink (CRCW) and white offspring (CWCW), 2pink and 2white offsprings will be possibly produced in the ratio 1:1.

In the third cross between a red (CRCR) and pink (CRCW) snapdragon, 2 red and 2 Pink offsprings will possibly be produced in a ratio 1:1.

In the fourth cross between a pink (CRCW) and pink (CRCW) snapdragon, red, pink and white offsprings will be produced in the ratio 1:2:1.

See attached image for the complete punnet square. Note that, there was a mistake in the Genotype of the last cross i.e. pink has genotype CRCW not CWCW.

5 0
3 years ago
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