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Radda [10]
3 years ago
5

HELP FAST! Why was Alfred Wegener's theory of continental drift rejected?

Biology
1 answer:
astra-53 [7]3 years ago
7 0
He suggested that the continents<span> plowed across the ocean floors. ... Because </span>Wegener<span> could not identify the cause of </span>continental drift<span>, most geologists </span>rejected <span>his </span><span>idea. that is why</span>
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Which antibiotic would you use to determine if the recombinant dna was taken in?
Brrunno [24]
Antibiotic used include kenamycin, ampicillin and tetracycline. This is useful to determine if and which bacteria took up the plasmid as they were supposed to during the process of recombination. Host bacteria are normally killed by these antibiotics. If the recombinant plasmids were taken up by the bacteria, plasmid may have contained a DNA gene for resisting the effects of one or more antibiotics. Host bacteria are placed in a growth medium containing an antibiotic to which they have a resistant gene in their recombinant plasmid DNA survivor. If they havent taken the plasmid they die.
6 0
3 years ago
Which two types of surface on earth are most important for absorbing solar energy and keeping the planet warm?Explain you answer
Ede4ka [16]
The answer is Forests and Oceans. Both of them occupy most of Earth's surface, Reflects the least amount of sun, and absorbs a lot of the sun's energy due to photosynthesis and photosynthetic organisms.
5 0
3 years ago
8 In sexual reproduction, an offspring is produced with genes from both parents. When the offspring has a new genetic variation
KatRina [158]

Answer: B

Explanation:

Mutations are changes in the DNA sequence that can lead to genetic diversity. Mutations are usually errors in DNA replication or mitosis.

8 0
2 years ago
In a cross between two heterozygous tall and purple flowers (TtPp x TtPp), what would the
Goryan [66]

Answer:

9:3:3:1

Explanation:

This question involves two different genes coding for height and flower color respectively. The first gene posseses allele T (dominant) and t (recessive) while the second gene possesses allele P (dominant) and p (recessive).

According to this question, two heterozygous tall and purple flowers are crossed i.e. (TtPp x TtPp). Each parent will produce the following gametes combination:

TtPp - TP, Tp, tP, tp

Using these gametes in a punnet square, the following proportion of offsprings will be produced:

T_P_ (tall, purple) = 9

T_pp (tall, white) = 3

ttP_ (short, purple) = 3

ttpp (short, white) = 1

Hence, the ratio of this cross is 9:3:3:1

5 0
3 years ago
In nature which pigment gives red algae it’s color
algol13

Answer: Rhodophyta  ( Red algae)

Explanation:

Because...

Characteristics: The red colour of these algae results from the pigments phycoerythrin and phycocyanin; this masks the other pigments, Chlorophyll a (no Chlorophyll b), beta-carotene and a number of unique xanthophylls.

* Hopefully this helps:) Mark me the brainliest:)!!

<em>∞ 234483279c20∞</em>

4 0
3 years ago
Read 2 more answers
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