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gladu [14]
3 years ago
11

Purple loosestrife, lythrum salicaria, is a beautiful, long-stemmed wetlands species brought to the united states from europe as

an ornamental plant. in the united states, it has no predators and crowds out cattails, typha latifolia, another wetlands plant that's a valuable resource for many species. purple loosestrife is an example of
Biology
1 answer:
n200080 [17]3 years ago
4 0
I believe you're looking for "invasive species"
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Circular rings of smooth muscle that can contract to regulate the movement of food through the gastrointestinal tract are called
yaroslaw [1]

Answer: Sphincter muscles

Explanation:

The circular rings of smooth muscles, that can contract to regulate the movement of the smooth muscles that can contract to regulate the movement  of food through the gastrointestinal tract are known as sphincter muscles.

These two layers are outer layer and inner layer. The outer layer is longitudinal and the inner layer is circular. They contract rhythmically to squeeze food.

4 0
3 years ago
Infectious diseases have an easier time spreading now than they did several hundred years ago. What about society has changed th
d1i1m1o1n [39]

Answer:

see below :)

Explanation:

Infectious are more easily spread nowadays becuse of an increased population. The more the population increases, the bigger the advantage an infectious disease has. As of right now, because everyone is wearing masks, their immune systems are being weakened. Another reason for this is because of the increase in chemicals in our foods, which are now being transferred to our bodies. All of the medications people are taking also have an affect on the spread of disease; it gives diseases a chance to mutate.

8 0
3 years ago
Read 2 more answers
In cats, some are black, some are orange, and some are calico (fur that is both black and orange) All calico cats are always fem
lapo4ka [179]

Calico cats are predominantly female because they’re colouring is related to the X chromosome.

  1. Two X chromosomes are needed for a cat to have that distinctive tri-colour coat.
  2. If a cat has an XX pair, she will be female.
  3. Male cats have an XY chromosome pair, so they can’t be Calicos.

Have a great day <3  (I love cats)

3 0
3 years ago
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Why do you think eating beef and dairy from cows that are fed corn and soy has such a high environmental impact compared to eati
postnew [5]

Answer:

because it has more nutriants and helps them get fat more.

Explanation:

read it

4 0
3 years ago
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Sister chromatids of a pair of homologous chromosomes form tetrads, and crossing-over (exchange of genetic information between r
aleksandr82 [10.1K]

Crossing over (exchange of genetic information between regions of non-sister chromatids in the tetrad) occurs in the prophase I stage of meiosis.

<h3>WHAT IS MEIOSIS?</h3>

Meiosis is the process whereby a single cell produces four daughter cells that are genetically different from one another.

Meiosis is able to ensure genetic diversity in the daughter cells due to a process called Crossing over.

Crossing over is the exchange of genetic material between the non-sister chromatids of homologous chromosomes. It occurs in the prophase I stage of meiosis.

Therefore, crossing over (exchange of genetic information between regions of non-sister chromatids in the tetrad) occurs in the prophase I stage of meiosis.

Learn more about crossing over at: brainly.com/question/394891

4 0
2 years ago
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