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Liula [17]
2 years ago
13

Which of the following best describes how sedimentary rock forms?

Biology
1 answer:
kap26 [50]2 years ago
5 0

Answer:

I think its B

Explanation:

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Contrast the two types of plant reproduction. Help me please its due today
AysviL [449]
Sexual reproduction produces offspring by the fusion of gametes, resulting in offspring genetically different from the parent(s). Asexual reproduction produces new individuals without the fusion of gametes, genetically indentical to the parent plants and each other, when mutations occur
3 0
2 years ago
The antibacterial activity of penicillin is related to the inhibition of a key bacterial enzyme. Explain this mechanism of enzym
serious [3.7K]

Answer:

Penicillin binds and inhibits bacterial enzyme DD-transpeptidase.

Explanation:

Penicillin is made up of 4 rings of β-lactam and acts by binding to DD-transpeptidase of bacteria. The DD-transpeptidase facilitates the cross-linking of the peptidoglycan cell wall of bacteria. This leads to malformation of the protective cell wall of the bacteria and causes it to lyze and die.

8 0
3 years ago
How might mendel's conclusions have differed if he had studied two traits determined by alleles carried on the same chromosome?
tekilochka [14]
He w<span>ould not have seen segregation of alleles and so would not have Mendel's Law of Segregation.
A dihybrid cross would give in the F2 a ratio of 3:1 instead of 9:3:3:1.(assuming no crossing over) </span>
7 0
3 years ago
What gives sperms motility​
Mandarinka [93]

Answer:

The tail of the sperm, the flagellum

Explanation:

We find cilia in the human body. They coat the epithelial cells of the upper respiratory tract and play a role in keeping dust particles, smog, and potentially harmful microorganisms from entering the lungs.

Their movements enable the movement of mucus or other substances across the surface of various epithelial cells. The cilia also cover parts of the male and female reproductive tract.  

Flagella are found in sperm, whose tail represents the flagellum in its structure. The body wall of the sponge, among others, contains cells with whips that create and maintain the flow of water through the body.

7 0
3 years ago
Color in McIver beetles is determined by two alleles at one gene locus. McIver beetles must have a heterzygous genotype (genotyp
seraphim [82]

Answer: The frequency of brown beetles is 0.32.

Explanation: The frequency of A1 allele is 0.8. As p+q=1, or the sum of dominant and recessive frequencies equals 1 or 100%:

1 - 0.8 = 0.2

In Hardy-Weinberg principle,

p^{2} + 2pq + q^{2} = 1

2pq represents the frequency of heterozygote individuals, so:

genotype A1A2 = 2*0.8*0.2 = 0.32.

Thus, the frequency of brown beetles (A1A2) in the population is 0.32.

3 0
3 years ago
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