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miskamm [114]
2 years ago
4

Plants do not have a circulatory system like that of some animals. if a water molecule did "circulate" (that is, go from one poi

nt in a plant to another and back in the same day), it would require the activity of (check all that apply) question 7 options:
a.the xylem
b.the symplastic route
c.the fungal association with roots
d.the endodermis
e.the phloem f) the apoplastic route save
Biology
1 answer:
Marina86 [1]2 years ago
3 0
A. xylem and E phloem. Plants have transport tissues which differs on the material they transfer. Xylem transfer water from the roots to the leaves and rest of the plant parts.  Phloem transport food from the leaves which allows more water to be transported from the roots.
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6. A scientist measures the circumference of acorns in a population of oak trees
melisa1 [442]

Answer:

6. 2 cm

8. Greater than 2 cm and less than 2 cm

Explanation:

Complete Question

6. A scientist measures the circumference of acorns in a population of oak trees and discovers that the most common circumference is 2 cm. What would you expect the most common circumference(s) to be after 10 generations of stabilizing selection?

-2 cm

-Greater than 2 cm or less than 2 cm

-Greater than 2 cm and less than 2 cm

-Can't tell from the information given

8. Refer to question 6, but this time answer what you would expect after 10

generations of directional selection.

-2 cm

-Greater than 2 cm or less than 2 cm

-Greater than 2 cm and less than 2 cm

-Can't tell from the information given

Solution -

6. In an stabilizing selection, the average trait of a given population is favored over extreme values. Hence, it can be said that one specific trait is over presented in a given population. For example – uniform human birth weight, number of eggs a bird lay etc.  

Here in this case if most common circumference is 2 cm , then the tree population will try to have this trait as a stabilizing trait.  

Thus, option A is correct

8. In a  directional selection, the genetic variation decreases as per the environmental change. And hence the average trait will not be selected. Instead traits either higher or lower the average values will be preferred.  

Thus, option C is correct

3 0
2 years ago
The zebra mussel is originally native to the Black and Caspian Seas of Asia. Zebra mussels were first detected in the Hudson Riv
Aleksandr [31]

Answer:

The correct answer is "True".

Explanation:

The zebra mussel is a small animal that lives near freshwater zones, just like the ones present at the Hudson River of New York. In this place is where zebra mussel was first detected in May 1991. However, it had been traced that zebra mussel is originally native to the Black and Caspian Seas of Asia. It is believed that zebra mussel arrived to New York in the mid-1980s in the ballast water of ocean-going ships that came from Europe.

3 0
2 years ago
Read 2 more answers
The white feathers of a snowy owl allow it to blend in with its environment during the winter months (snow). This is an example
umka2103 [35]

Answer:

Adaptation

Explanation:

6 0
2 years ago
Read 2 more answers
What is an endocrine function? (Apex)
ElenaW [278]

The correct answer is option D

the pineal gland releases melatonin into the bloodstream

In the exocrine system the organ releases certain substance other than hormone while in the endocrine system , the organs releases hormones.

In option D, melatonin is a hormone released by pineal gland and thus it is an endocrine function

5 0
2 years ago
Read 2 more answers
What current will an ammeter register if 960C of charge flow through it in 2 minutes?
postnew [5]

Answer:

8A

Explanation:

I= Q/t, where

I= current (A)

Q= charge (C)

t= time (s)

First convert the time from minutes to seconds.

1 minute= 60 seconds

2 minutes= 2×60= 120 seconds

Using the formula,

I= 960÷120

I= 8A

7 0
2 years ago
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