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barxatty [35]
3 years ago
7

The rusty crayfish is harmful to Native species of crayfish because it clear cut the bottom of waterways leaving native species

without a food supply
T or F
Biology
2 answers:
Verdich [7]3 years ago
7 0
I think its true hope this helps.
Studentka2010 [4]3 years ago
4 0

Answer: True

Explanation:

An invasive species is the one which competes with the members of the native species for resources when introduced to a new ecosystem.

According to the given situation, a rusty crayfish is harmful to the native species of crayfish. This tells us that rusty crayfish is invasive for native species of crayfish. Thus the native species left without food as there exists competition for food.

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Gala2k [10]

The following are some signs of an allergic reaction: watery, irritated eyelids. 1) Runny nose 2) Coughing. 3)A blocked nose 4)Rashes 5)Hives (a rash with elevated red spots) (a rash with raised red patches) 6) Stomach pain 7)Vomiting.

How much time may an allergy last?

It can take a couple of hours or ten days. It normally lasts between 12 hours and 3 days. Effects can last for two to four weeks even with treatment. 

What allergy is the most severe?

Anaphylaxis, also referred to as anaphylaxis, is the most extreme kind. Individuals with chronic of allergies in their background are more likely to experience allergic reactions.

oral antihistamines. Antihistamines can helps with watery eyes, a stuffy or runny nose, coughing, and itching.

To know more about Anaphylaxis click here

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8 0
1 year ago
The human genome comprises about 3 x 109 base pairs of DNA, and no two humans, other than identical twins, ever have been or wil
arsen [322]

Answer:

The correct answer is C.

Explanation:

The amount of genetic variation in two humans is 0.1 percent of their genome. Human genetic variation refers to the biological difference that exists in the human population.

The genetic variation in humans and apes genome is about 4 percent which is 35 million differences in a single nucleotide.

The genetic variation between apes and humans (Homo sapiens), according to scientists includes gene expression differences, variation in the transportable elements and type and number of repetitive genomic DNA transportable elements, the difference in the gene sequence, single nucleotide polymorphic, etc.

According to research, 97 percent of humans and orangutans genomes are identical. Based on evolution, among all apes, the orangutans are very special as it has been stable for the past 15 million years.

Therefore, is the genetic variation between humans and orangutans is the greatest.

8 0
3 years ago
Which of the following are the major phagocytic cells in the body?a. T and B lymphcytesb. Eosinophisc. Erythrocytesd. Macrophage
kupik [55]

Answer:

The correct options are MACROPHAGES AND NEUTROPHILSE.

Explanation:

Majority of the white blood cells in humans are specialized phagocytic cells, examples of these are macrophages, neutrophilse, monoctyes, mast cells and dendritic cells. The major functions of phagocytic cells is to protect the human body from disease pathogens. They do this by ingesting foreign bodies that are found in the body.  Macrophages and neutrophilse are the major phagocytic cells in the body, they are the principal effector of non-specific host defense and inflammation.

8 0
3 years ago
Can someone help me with this question please
postnew [5]
The answer is B) 4IF3 Hope this helps!

Aye Sir!
3 0
3 years ago
Which of these occurs in sexual reproduction but not in asexual reproduction?
Kay [80]

Answer:

First option is the correct one.

Explanation:

Asexual reproduction produces offspring that are genetically identical to the parent because the offspring are all clones of the original parent. A single individual can produce offspring asexually and large numbers of offspring can be produced quickly.

7 0
3 years ago
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