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sladkih [1.3K]
4 years ago
7

How does streptococci cause human disease?

Biology
1 answer:
antiseptic1488 [7]4 years ago
7 0
<span>streptococci </span>may cause disease<span> due to direct infection or due to the production of toxins by the bacteria. 
</span>

Hope this helps!
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varghese, p.m.; tsolaki, a.g.; yasmin, h.; shastri, a.; ferluga, j.; vatish, m.; madan, t.; kishore, u. host-pathogen interactio
Orlov [11]

Answer:

I don't really know how to answer this it kinda just looks like random words

Explanation:

k

6 0
1 year ago
What caused a decline in the wolf populations in the United States in the early 1900's?
Damm [24]

The correct answer is human activity.

The Yellowstone national park is one of the natural, which had a high number of wolf population. In late 1800s, the agricultural lands were spread nearby the Yellowstone ranges, the agricultural lands were present in the predation range of the wolf. As the agricultural land was in the predation zone of wolf, the wolves from the forests used to come in the agricultural land and destroy live stock. In order to protect live stock, the local people started killing wolves and even they started poisoning them, which was the major reason for the declination in the number of wolves in early 1900s.

6 0
3 years ago
How are fossils helpful in identifying ancestral and derived traits of organisms?
Brilliant_brown [7]
Fossils can give us direct evidence of the character states of extinct lineages. For example, all modern birds lack teeth. Is the lack of teeth an ancestral or a derived condition? If we examine extinct species of theropods we see that they had teeth. Therefore we know that the lack of teeth is a derived condition in modern birds.
5 0
4 years ago
The R locus determines flower color in a new plant species. Plants that are genotype RR have red flowers, and plants that are rr
Ket [755]

Answer: Codominance

Explanation: We have dominant genes and recessive genes.

Dominant gene are gene that are been expressed. example for a tall individual (TT) it means the gene for tallness is been expressed while a recessive gene are genes that are not been expressed .Example An individual who is short (tt) could have the gene for tallest in a recessive form but expresses shortnes.

Complete dominance occur when both allele present are expressed in the phenotype of an individual i.e non of the gene expression is masked or recessive. Codominance is a deviation from mendelian's principle of Inheritance and often time result into a new phenotype.

E.g A white plant cross with a Red plant should give a Red colored plant in an heterozygous form in the first filial generation but when there is codominance i.e both allele are expressed we have a pink plant instead of Red

RR×rr =RrRr

6 0
4 years ago
Ha ha get trolled,lol
VMariaS [17]

Answer:

wat!!!!!!!!!!

Explanation:

!!!!!!!!??

7 0
3 years ago
Read 2 more answers
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