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sergey [27]
3 years ago
6

According to some botanists, invasive plants are the second most serious threat, after habitat loss, to native species of plants

and animals and to the maintenance of biologically diverse ecosystems.A. threat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystemsB. threat, after habitat loss, to native species of plants and animals and for maintaining biologically diverse ecosystemsC. threat, after losing their habitat, to native species of plants and animals and also to maintenance of biologically diverse ecosystemsD. threat to native species of plants and animals and for maintaining biologically diverse ecosystems, after habitat lossE. threat to native species of plants and animals as well as to maintaining biologically diverse ecosystems, after losing their habitat
Biology
1 answer:
Nataliya [291]3 years ago
8 0

Answer: option A - threat, after habitat loss, to native species of plants and animals and to the maintenance of biologically diverse ecosystems

Explanation:

Invasive species refers to organisms that appears at a particular habitat that has just undergone an environmental unfavorable condition.

These INVASIVE SPECIES poses THREAT to the native organisms, because they usually possess:

better resistance to disease,

higher reproductive rate, etc.

So, even when native organisms migrate or dies, Invasive species REMAINS. As a result, they threaten the maintenance of a biologically diverse ecosystem

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To maintain a healthy diet, you should try to eat a diet rich in:
finlep [7]

Answer:

I am not sure whether or not this is a statement or a question, but a healthy diet would consist of more diversity. You could live off of that and maintain a healthy body, but it would not be recommended.

Explanation:

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3 years ago
To check whether Earnest and Denise could have a baby with Type O blood, draw a Punnett square for a father who has blood Type A
Nutka1998 [239]

Answer:

Answer is explained below and also see the document attached below for Punnett square.

Explanation:

ABO blood type (A, B, AB, or O) is based on the presence (or absence) of the A and B antigens in the red blood cells. The blood type, A has only the A antigen (and has anti-B antibodies) while the blood type, B has only the B antigen (and had anti-A antibodies). Also in the AB  blood type, both A and B antigens are present (but has no antibodies) while in the O blood type, both A and B antigens are absent (but has both antibodies).

The blood type is inherited from the parents and the offspring inherits one of the two alleles from each parent. The ABO blood type has three types of alleles: IA, IB, and i. Here, I is a term for antigen (isoagglutinogen).

The IA and IB alleles are dominant while the i allele is recessive. The blood type A is formed by either two IA alleles (IA IA ) or IA i. So, the genotype of blood type A is IA IA  or IA i. The blood type B is formed by either two IB alleles (IB IB ) or IB i. So, the genotype of blood type B is IB IB or IB i. The O blood type is formed only by two i alleles (ii). So, the genotype of blood type O is ii. The IA and IB alleles (IA IB) give the AB blood type, which is an example of codominance (the traits of both the alleles are visible in the phenotype). The genotype of blood type AB is IA IB.  

If the parents have blood type A and B, then they can have an AB blood type offspring. If the parents have blood type A and B and they both are heterozygous (IB i and IA i), then they can also have a O blood type child.

Here, the father has blood Type A (IA i genotype) while the mother has blood Type B (IB i genotype). Both the parents are heterozygous (IB i and IAi), so the possible genotypes of their child are IA IB (blood type AB), IA i (blood type A), IB i (blood type B) and ii (blood type O).

i.e.,            <u> Blood Type </u>                             <u>Genotype </u>

                           A                                     IA IA or IA i

                           B                                     IB IB or IB i

                          AB                                        IA IB

                           O                                            ii      

Download doc
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3 years ago
A motorist travels 406 m during a 177.0 s period. what was the average velocity?
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The answer is 2.29 as the average velocity.
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Smooth muscles depolarize as a result of a transmembrane current of ________. smooth muscles depolarize as a result of a transme
Oksana_A [137]
Smooth muscles depolarize as a result of a transmembrane current of Calcium ions.                                                                                                                       When an action potential depolarizes the muscle cell membrane, it also travels into the body of the cell via the t-tubules. Unlike skeletal muscle, smooth muscle is dependent in two sources of calcium in order to intiate contraction. These two sources are calcium sequestered in the S.R. of the smooth muscle cell. 
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